sqlglot.expressions API documentation

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## Expressions

Every AST node in SQLGlot is represented by a subclass of `Expression`.

This module contains the implementation of all supported `Expression` types. Additionally, it exposes a number of helper functions, which are mainly used to programmatically build SQL expressions, such as `select`.

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       1"""
       2## Expressions
       3
       4Every AST node in SQLGlot is represented by a subclass of `Expression`.
       5
       6This module contains the implementation of all supported `Expression` types. Additionally,
       7it exposes a number of helper functions, which are mainly used to programmatically build
       8SQL expressions, such as `sqlglot.expressions.select`.
       9
      10----
      11"""
      12
      13from __future__ import annotations
      14
      15import datetime
      16import math
      17import numbers
      18import re
      19import textwrap
      20import typing as t
      21from collections import deque
      22from copy import deepcopy
      23from decimal import Decimal
      24from enum import auto
      25from functools import reduce
      26
      27from sqlglot.errors import ErrorLevel, ParseError
      28from sqlglot.helper import (
      29    AutoName,
      30    camel_to_snake_case,
      31    ensure_collection,
      32    ensure_list,
      33    seq_get,
      34    subclasses,
      35)
      36from sqlglot.tokens import Token, TokenError
      37
      38if t.TYPE_CHECKING:
      39    from sqlglot._typing import E, Lit
      40    from sqlglot.dialects.dialect import DialectType
      41
      42    Q = t.TypeVar("Q", bound="Query")
      43    S = t.TypeVar("S", bound="SetOperation")
      44
      45
      46class _Expression(type):
      47    def __new__(cls, clsname, bases, attrs):
      48        klass = super().__new__(cls, clsname, bases, attrs)
      49
      50        # When an Expression class is created, its key is automatically set to be
      51        # the lowercase version of the class' name.
      52        klass.key = clsname.lower()
      53
      54        # This is so that docstrings are not inherited in pdoc
      55        klass.__doc__ = klass.__doc__ or ""
      56
      57        return klass
      58
      59
      60SQLGLOT_META = "sqlglot.meta"
      61TABLE_PARTS = ("this", "db", "catalog")
      62COLUMN_PARTS = ("this", "table", "db", "catalog")
      63
      64
      65class Expression(metaclass=_Expression):
      66    """
      67    The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary
      68    context, such as its child expressions, their names (arg keys), and whether a given child expression
      69    is optional or not.
      70
      71    Attributes:
      72        key: a unique key for each class in the Expression hierarchy. This is useful for hashing
      73            and representing expressions as strings.
      74        arg_types: determines the arguments (child nodes) supported by an expression. It maps
      75            arg keys to booleans that indicate whether the corresponding args are optional.
      76        parent: a reference to the parent expression (or None, in case of root expressions).
      77        arg_key: the arg key an expression is associated with, i.e. the name its parent expression
      78            uses to refer to it.
      79        index: the index of an expression if it is inside of a list argument in its parent.
      80        comments: a list of comments that are associated with a given expression. This is used in
      81            order to preserve comments when transpiling SQL code.
      82        type: the `sqlglot.expressions.DataType` type of an expression. This is inferred by the
      83            optimizer, in order to enable some transformations that require type information.
      84        meta: a dictionary that can be used to store useful metadata for a given expression.
      85
      86    Example:
      87        >>> class Foo(Expression):
      88        ...     arg_types = {"this": True, "expression": False}
      89
      90        The above definition informs us that Foo is an Expression that requires an argument called
      91        "this" and may also optionally receive an argument called "expression".
      92
      93    Args:
      94        args: a mapping used for retrieving the arguments of an expression, given their arg keys.
      95    """
      96
      97    key = "expression"
      98    arg_types = {"this": True}
      99    __slots__ = ("args", "parent", "arg_key", "index", "comments", "_type", "_meta", "_hash")
     100
     101    def __init__(self, **args: t.Any):
     102        self.args: t.Dict[str, t.Any] = args
     103        self.parent: t.Optional[Expression] = None
     104        self.arg_key: t.Optional[str] = None
     105        self.index: t.Optional[int] = None
     106        self.comments: t.Optional[t.List[str]] = None
     107        self._type: t.Optional[DataType] = None
     108        self._meta: t.Optional[t.Dict[str, t.Any]] = None
     109        self._hash: t.Optional[int] = None
     110
     111        for arg_key, value in self.args.items():
     112            self._set_parent(arg_key, value)
     113
     114    def __eq__(self, other) -> bool:
     115        return type(self) is type(other) and hash(self) == hash(other)
     116
     117    @property
     118    def hashable_args(self) -> t.Any:
     119        return frozenset(
     120            (k, tuple(_norm_arg(a) for a in v) if type(v) is list else _norm_arg(v))
     121            for k, v in self.args.items()
     122            if not (v is None or v is False or (type(v) is list and not v))
     123        )
     124
     125    def __hash__(self) -> int:
     126        if self._hash is not None:
     127            return self._hash
     128
     129        return hash((self.__class__, self.hashable_args))
     130
     131    @property
     132    def this(self) -> t.Any:
     133        """
     134        Retrieves the argument with key "this".
     135        """
     136        return self.args.get("this")
     137
     138    @property
     139    def expression(self) -> t.Any:
     140        """
     141        Retrieves the argument with key "expression".
     142        """
     143        return self.args.get("expression")
     144
     145    @property
     146    def expressions(self) -> t.List[t.Any]:
     147        """
     148        Retrieves the argument with key "expressions".
     149        """
     150        return self.args.get("expressions") or []
     151
     152    def text(self, key) -> str:
     153        """
     154        Returns a textual representation of the argument corresponding to "key". This can only be used
     155        for args that are strings or leaf Expression instances, such as identifiers and literals.
     156        """
     157        field = self.args.get(key)
     158        if isinstance(field, str):
     159            return field
     160        if isinstance(field, (Identifier, Literal, Var)):
     161            return field.this
     162        if isinstance(field, (Star, Null)):
     163            return field.name
     164        return ""
     165
     166    @property
     167    def is_string(self) -> bool:
     168        """
     169        Checks whether a Literal expression is a string.
     170        """
     171        return isinstance(self, Literal) and self.args["is_string"]
     172
     173    @property
     174    def is_number(self) -> bool:
     175        """
     176        Checks whether a Literal expression is a number.
     177        """
     178        return (isinstance(self, Literal) and not self.args["is_string"]) or (
     179            isinstance(self, Neg) and self.this.is_number
     180        )
     181
     182    def to_py(self) -> t.Any:
     183        """
     184        Returns a Python object equivalent of the SQL node.
     185        """
     186        raise ValueError(f"{self} cannot be converted to a Python object.")
     187
     188    @property
     189    def is_int(self) -> bool:
     190        """
     191        Checks whether an expression is an integer.
     192        """
     193        return self.is_number and isinstance(self.to_py(), int)
     194
     195    @property
     196    def is_star(self) -> bool:
     197        """Checks whether an expression is a star."""
     198        return isinstance(self, Star) or (isinstance(self, Column) and isinstance(self.this, Star))
     199
     200    @property
     201    def alias(self) -> str:
     202        """
     203        Returns the alias of the expression, or an empty string if it's not aliased.
     204        """
     205        if isinstance(self.args.get("alias"), TableAlias):
     206            return self.args["alias"].name
     207        return self.text("alias")
     208
     209    @property
     210    def alias_column_names(self) -> t.List[str]:
     211        table_alias = self.args.get("alias")
     212        if not table_alias:
     213            return []
     214        return [c.name for c in table_alias.args.get("columns") or []]
     215
     216    @property
     217    def name(self) -> str:
     218        return self.text("this")
     219
     220    @property
     221    def alias_or_name(self) -> str:
     222        return self.alias or self.name
     223
     224    @property
     225    def output_name(self) -> str:
     226        """
     227        Name of the output column if this expression is a selection.
     228
     229        If the Expression has no output name, an empty string is returned.
     230
     231        Example:
     232            >>> from sqlglot import parse_one
     233            >>> parse_one("SELECT a").expressions[0].output_name
     234            'a'
     235            >>> parse_one("SELECT b AS c").expressions[0].output_name
     236            'c'
     237            >>> parse_one("SELECT 1 + 2").expressions[0].output_name
     238            ''
     239        """
     240        return ""
     241
     242    @property
     243    def type(self) -> t.Optional[DataType]:
     244        return self._type
     245
     246    @type.setter
     247    def type(self, dtype: t.Optional[DataType | DataType.Type | str]) -> None:
     248        if dtype and not isinstance(dtype, DataType):
     249            dtype = DataType.build(dtype)
     250        self._type = dtype  # type: ignore
     251
     252    def is_type(self, *dtypes) -> bool:
     253        return self.type is not None and self.type.is_type(*dtypes)
     254
     255    def is_leaf(self) -> bool:
     256        return not any(isinstance(v, (Expression, list)) for v in self.args.values())
     257
     258    @property
     259    def meta(self) -> t.Dict[str, t.Any]:
     260        if self._meta is None:
     261            self._meta = {}
     262        return self._meta
     263
     264    def __deepcopy__(self, memo):
     265        root = self.__class__()
     266        stack = [(self, root)]
     267
     268        while stack:
     269            node, copy = stack.pop()
     270
     271            if node.comments is not None:
     272                copy.comments = deepcopy(node.comments)
     273            if node._type is not None:
     274                copy._type = deepcopy(node._type)
     275            if node._meta is not None:
     276                copy._meta = deepcopy(node._meta)
     277            if node._hash is not None:
     278                copy._hash = node._hash
     279
     280            for k, vs in node.args.items():
     281                if hasattr(vs, "parent"):
     282                    stack.append((vs, vs.__class__()))
     283                    copy.set(k, stack[-1][-1])
     284                elif type(vs) is list:
     285                    copy.args[k] = []
     286
     287                    for v in vs:
     288                        if hasattr(v, "parent"):
     289                            stack.append((v, v.__class__()))
     290                            copy.append(k, stack[-1][-1])
     291                        else:
     292                            copy.append(k, v)
     293                else:
     294                    copy.args[k] = vs
     295
     296        return root
     297
     298    def copy(self):
     299        """
     300        Returns a deep copy of the expression.
     301        """
     302        return deepcopy(self)
     303
     304    def add_comments(self, comments: t.Optional[t.List[str]] = None) -> None:
     305        if self.comments is None:
     306            self.comments = []
     307
     308        if comments:
     309            for comment in comments:
     310                _, *meta = comment.split(SQLGLOT_META)
     311                if meta:
     312                    for kv in "".join(meta).split(","):
     313                        k, *v = kv.split("=")
     314                        value = v[0].strip() if v else True
     315                        self.meta[k.strip()] = value
     316                self.comments.append(comment)
     317
     318    def pop_comments(self) -> t.List[str]:
     319        comments = self.comments or []
     320        self.comments = None
     321        return comments
     322
     323    def append(self, arg_key: str, value: t.Any) -> None:
     324        """
     325        Appends value to arg_key if it's a list or sets it as a new list.
     326
     327        Args:
     328            arg_key (str): name of the list expression arg
     329            value (Any): value to append to the list
     330        """
     331        if type(self.args.get(arg_key)) is not list:
     332            self.args[arg_key] = []
     333        self._set_parent(arg_key, value)
     334        values = self.args[arg_key]
     335        if hasattr(value, "parent"):
     336            value.index = len(values)
     337        values.append(value)
     338
     339    def set(
     340        self,
     341        arg_key: str,
     342        value: t.Any,
     343        index: t.Optional[int] = None,
     344        overwrite: bool = True,
     345    ) -> None:
     346        """
     347        Sets arg_key to value.
     348
     349        Args:
     350            arg_key: name of the expression arg.
     351            value: value to set the arg to.
     352            index: if the arg is a list, this specifies what position to add the value in it.
     353            overwrite: assuming an index is given, this determines whether to overwrite the
     354                list entry instead of only inserting a new value (i.e., like list.insert).
     355        """
     356        if index is not None:
     357            expressions = self.args.get(arg_key) or []
     358
     359            if seq_get(expressions, index) is None:
     360                return
     361            if value is None:
     362                expressions.pop(index)
     363                for v in expressions[index:]:
     364                    v.index = v.index - 1
     365                return
     366
     367            if isinstance(value, list):
     368                expressions.pop(index)
     369                expressions[index:index] = value
     370            elif overwrite:
     371                expressions[index] = value
     372            else:
     373                expressions.insert(index, value)
     374
     375            value = expressions
     376        elif value is None:
     377            self.args.pop(arg_key, None)
     378            return
     379
     380        self.args[arg_key] = value
     381        self._set_parent(arg_key, value, index)
     382
     383    def _set_parent(self, arg_key: str, value: t.Any, index: t.Optional[int] = None) -> None:
     384        if hasattr(value, "parent"):
     385            value.parent = self
     386            value.arg_key = arg_key
     387            value.index = index
     388        elif type(value) is list:
     389            for index, v in enumerate(value):
     390                if hasattr(v, "parent"):
     391                    v.parent = self
     392                    v.arg_key = arg_key
     393                    v.index = index
     394
     395    @property
     396    def depth(self) -> int:
     397        """
     398        Returns the depth of this tree.
     399        """
     400        if self.parent:
     401            return self.parent.depth + 1
     402        return 0
     403
     404    def iter_expressions(self, reverse: bool = False) -> t.Iterator[Expression]:
     405        """Yields the key and expression for all arguments, exploding list args."""
     406        # remove tuple when python 3.7 is deprecated
     407        for vs in reversed(tuple(self.args.values())) if reverse else self.args.values():
     408            if type(vs) is list:
     409                for v in reversed(vs) if reverse else vs:
     410                    if hasattr(v, "parent"):
     411                        yield v
     412            else:
     413                if hasattr(vs, "parent"):
     414                    yield vs
     415
     416    def find(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Optional[E]:
     417        """
     418        Returns the first node in this tree which matches at least one of
     419        the specified types.
     420
     421        Args:
     422            expression_types: the expression type(s) to match.
     423            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
     424
     425        Returns:
     426            The node which matches the criteria or None if no such node was found.
     427        """
     428        return next(self.find_all(*expression_types, bfs=bfs), None)
     429
     430    def find_all(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Iterator[E]:
     431        """
     432        Returns a generator object which visits all nodes in this tree and only
     433        yields those that match at least one of the specified expression types.
     434
     435        Args:
     436            expression_types: the expression type(s) to match.
     437            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
     438
     439        Returns:
     440            The generator object.
     441        """
     442        for expression in self.walk(bfs=bfs):
     443            if isinstance(expression, expression_types):
     444                yield expression
     445
     446    def find_ancestor(self, *expression_types: t.Type[E]) -> t.Optional[E]:
     447        """
     448        Returns a nearest parent matching expression_types.
     449
     450        Args:
     451            expression_types: the expression type(s) to match.
     452
     453        Returns:
     454            The parent node.
     455        """
     456        ancestor = self.parent
     457        while ancestor and not isinstance(ancestor, expression_types):
     458            ancestor = ancestor.parent
     459        return ancestor  # type: ignore
     460
     461    @property
     462    def parent_select(self) -> t.Optional[Select]:
     463        """
     464        Returns the parent select statement.
     465        """
     466        return self.find_ancestor(Select)
     467
     468    @property
     469    def same_parent(self) -> bool:
     470        """Returns if the parent is the same class as itself."""
     471        return type(self.parent) is self.__class__
     472
     473    def root(self) -> Expression:
     474        """
     475        Returns the root expression of this tree.
     476        """
     477        expression = self
     478        while expression.parent:
     479            expression = expression.parent
     480        return expression
     481
     482    def walk(
     483        self, bfs: bool = True, prune: t.Optional[t.Callable[[Expression], bool]] = None
     484    ) -> t.Iterator[Expression]:
     485        """
     486        Returns a generator object which visits all nodes in this tree.
     487
     488        Args:
     489            bfs: if set to True the BFS traversal order will be applied,
     490                otherwise the DFS traversal will be used instead.
     491            prune: callable that returns True if the generator should stop traversing
     492                this branch of the tree.
     493
     494        Returns:
     495            the generator object.
     496        """
     497        if bfs:
     498            yield from self.bfs(prune=prune)
     499        else:
     500            yield from self.dfs(prune=prune)
     501
     502    def dfs(
     503        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
     504    ) -> t.Iterator[Expression]:
     505        """
     506        Returns a generator object which visits all nodes in this tree in
     507        the DFS (Depth-first) order.
     508
     509        Returns:
     510            The generator object.
     511        """
     512        stack = [self]
     513
     514        while stack:
     515            node = stack.pop()
     516
     517            yield node
     518
     519            if prune and prune(node):
     520                continue
     521
     522            for v in node.iter_expressions(reverse=True):
     523                stack.append(v)
     524
     525    def bfs(
     526        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
     527    ) -> t.Iterator[Expression]:
     528        """
     529        Returns a generator object which visits all nodes in this tree in
     530        the BFS (Breadth-first) order.
     531
     532        Returns:
     533            The generator object.
     534        """
     535        queue = deque([self])
     536
     537        while queue:
     538            node = queue.popleft()
     539
     540            yield node
     541
     542            if prune and prune(node):
     543                continue
     544
     545            for v in node.iter_expressions():
     546                queue.append(v)
     547
     548    def unnest(self):
     549        """
     550        Returns the first non parenthesis child or self.
     551        """
     552        expression = self
     553        while type(expression) is Paren:
     554            expression = expression.this
     555        return expression
     556
     557    def unalias(self):
     558        """
     559        Returns the inner expression if this is an Alias.
     560        """
     561        if isinstance(self, Alias):
     562            return self.this
     563        return self
     564
     565    def unnest_operands(self):
     566        """
     567        Returns unnested operands as a tuple.
     568        """
     569        return tuple(arg.unnest() for arg in self.iter_expressions())
     570
     571    def flatten(self, unnest=True):
     572        """
     573        Returns a generator which yields child nodes whose parents are the same class.
     574
     575        A AND B AND C -> [A, B, C]
     576        """
     577        for node in self.dfs(prune=lambda n: n.parent and type(n) is not self.__class__):
     578            if type(node) is not self.__class__:
     579                yield node.unnest() if unnest and not isinstance(node, Subquery) else node
     580
     581    def __str__(self) -> str:
     582        return self.sql()
     583
     584    def __repr__(self) -> str:
     585        return _to_s(self)
     586
     587    def to_s(self) -> str:
     588        """
     589        Same as __repr__, but includes additional information which can be useful
     590        for debugging, like empty or missing args and the AST nodes' object IDs.
     591        """
     592        return _to_s(self, verbose=True)
     593
     594    def sql(self, dialect: DialectType = None, **opts) -> str:
     595        """
     596        Returns SQL string representation of this tree.
     597
     598        Args:
     599            dialect: the dialect of the output SQL string (eg. "spark", "hive", "presto", "mysql").
     600            opts: other `sqlglot.generator.Generator` options.
     601
     602        Returns:
     603            The SQL string.
     604        """
     605        from sqlglot.dialects import Dialect
     606
     607        return Dialect.get_or_raise(dialect).generate(self, **opts)
     608
     609    def transform(self, fun: t.Callable, *args: t.Any, copy: bool = True, **kwargs) -> Expression:
     610        """
     611        Visits all tree nodes (excluding already transformed ones)
     612        and applies the given transformation function to each node.
     613
     614        Args:
     615            fun: a function which takes a node as an argument and returns a
     616                new transformed node or the same node without modifications. If the function
     617                returns None, then the corresponding node will be removed from the syntax tree.
     618            copy: if set to True a new tree instance is constructed, otherwise the tree is
     619                modified in place.
     620
     621        Returns:
     622            The transformed tree.
     623        """
     624        root = None
     625        new_node = None
     626
     627        for node in (self.copy() if copy else self).dfs(prune=lambda n: n is not new_node):
     628            parent, arg_key, index = node.parent, node.arg_key, node.index
     629            new_node = fun(node, *args, **kwargs)
     630
     631            if not root:
     632                root = new_node
     633            elif new_node is not node:
     634                parent.set(arg_key, new_node, index)
     635
     636        assert root
     637        return root.assert_is(Expression)
     638
     639    @t.overload
     640    def replace(self, expression: E) -> E: ...
     641
     642    @t.overload
     643    def replace(self, expression: None) -> None: ...
     644
     645    def replace(self, expression):
     646        """
     647        Swap out this expression with a new expression.
     648
     649        For example::
     650
     651            >>> tree = Select().select("x").from_("tbl")
     652            >>> tree.find(Column).replace(column("y"))
     653            Column(
     654              this=Identifier(this=y, quoted=False))
     655            >>> tree.sql()
     656            'SELECT y FROM tbl'
     657
     658        Args:
     659            expression: new node
     660
     661        Returns:
     662            The new expression or expressions.
     663        """
     664        parent = self.parent
     665
     666        if not parent or parent is expression:
     667            return expression
     668
     669        key = self.arg_key
     670        value = parent.args.get(key)
     671
     672        if type(expression) is list and isinstance(value, Expression):
     673            # We are trying to replace an Expression with a list, so it's assumed that
     674            # the intention was to really replace the parent of this expression.
     675            value.parent.replace(expression)
     676        else:
     677            parent.set(key, expression, self.index)
     678
     679        if expression is not self:
     680            self.parent = None
     681            self.arg_key = None
     682            self.index = None
     683
     684        return expression
     685
     686    def pop(self: E) -> E:
     687        """
     688        Remove this expression from its AST.
     689
     690        Returns:
     691            The popped expression.
     692        """
     693        self.replace(None)
     694        return self
     695
     696    def assert_is(self, type_: t.Type[E]) -> E:
     697        """
     698        Assert that this `Expression` is an instance of `type_`.
     699
     700        If it is NOT an instance of `type_`, this raises an assertion error.
     701        Otherwise, this returns this expression.
     702
     703        Examples:
     704            This is useful for type security in chained expressions:
     705
     706            >>> import sqlglot
     707            >>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()
     708            'SELECT x, z FROM y'
     709        """
     710        if not isinstance(self, type_):
     711            raise AssertionError(f"{self} is not {type_}.")
     712        return self
     713
     714    def error_messages(self, args: t.Optional[t.Sequence] = None) -> t.List[str]:
     715        """
     716        Checks if this expression is valid (e.g. all mandatory args are set).
     717
     718        Args:
     719            args: a sequence of values that were used to instantiate a Func expression. This is used
     720                to check that the provided arguments don't exceed the function argument limit.
     721
     722        Returns:
     723            A list of error messages for all possible errors that were found.
     724        """
     725        errors: t.List[str] = []
     726
     727        for k in self.args:
     728            if k not in self.arg_types:
     729                errors.append(f"Unexpected keyword: '{k}' for {self.__class__}")
     730        for k, mandatory in self.arg_types.items():
     731            v = self.args.get(k)
     732            if mandatory and (v is None or (isinstance(v, list) and not v)):
     733                errors.append(f"Required keyword: '{k}' missing for {self.__class__}")
     734
     735        if (
     736            args
     737            and isinstance(self, Func)
     738            and len(args) > len(self.arg_types)
     739            and not self.is_var_len_args
     740        ):
     741            errors.append(
     742                f"The number of provided arguments ({len(args)}) is greater than "
     743                f"the maximum number of supported arguments ({len(self.arg_types)})"
     744            )
     745
     746        return errors
     747
     748    def dump(self):
     749        """
     750        Dump this Expression to a JSON-serializable dict.
     751        """
     752        from sqlglot.serde import dump
     753
     754        return dump(self)
     755
     756    @classmethod
     757    def load(cls, obj):
     758        """
     759        Load a dict (as returned by `Expression.dump`) into an Expression instance.
     760        """
     761        from sqlglot.serde import load
     762
     763        return load(obj)
     764
     765    def and_(
     766        self,
     767        *expressions: t.Optional[ExpOrStr],
     768        dialect: DialectType = None,
     769        copy: bool = True,
     770        **opts,
     771    ) -> Condition:
     772        """
     773        AND this condition with one or multiple expressions.
     774
     775        Example:
     776            >>> condition("x=1").and_("y=1").sql()
     777            'x = 1 AND y = 1'
     778
     779        Args:
     780            *expressions: the SQL code strings to parse.
     781                If an `Expression` instance is passed, it will be used as-is.
     782            dialect: the dialect used to parse the input expression.
     783            copy: whether to copy the involved expressions (only applies to Expressions).
     784            opts: other options to use to parse the input expressions.
     785
     786        Returns:
     787            The new And condition.
     788        """
     789        return and_(self, *expressions, dialect=dialect, copy=copy, **opts)
     790
     791    def or_(
     792        self,
     793        *expressions: t.Optional[ExpOrStr],
     794        dialect: DialectType = None,
     795        copy: bool = True,
     796        **opts,
     797    ) -> Condition:
     798        """
     799        OR this condition with one or multiple expressions.
     800
     801        Example:
     802            >>> condition("x=1").or_("y=1").sql()
     803            'x = 1 OR y = 1'
     804
     805        Args:
     806            *expressions: the SQL code strings to parse.
     807                If an `Expression` instance is passed, it will be used as-is.
     808            dialect: the dialect used to parse the input expression.
     809            copy: whether to copy the involved expressions (only applies to Expressions).
     810            opts: other options to use to parse the input expressions.
     811
     812        Returns:
     813            The new Or condition.
     814        """
     815        return or_(self, *expressions, dialect=dialect, copy=copy, **opts)
     816
     817    def not_(self, copy: bool = True):
     818        """
     819        Wrap this condition with NOT.
     820
     821        Example:
     822            >>> condition("x=1").not_().sql()
     823            'NOT x = 1'
     824
     825        Args:
     826            copy: whether to copy this object.
     827
     828        Returns:
     829            The new Not instance.
     830        """
     831        return not_(self, copy=copy)
     832
     833    def as_(
     834        self,
     835        alias: str | Identifier,
     836        quoted: t.Optional[bool] = None,
     837        dialect: DialectType = None,
     838        copy: bool = True,
     839        **opts,
     840    ) -> Alias:
     841        return alias_(self, alias, quoted=quoted, dialect=dialect, copy=copy, **opts)
     842
     843    def _binop(self, klass: t.Type[E], other: t.Any, reverse: bool = False) -> E:
     844        this = self.copy()
     845        other = convert(other, copy=True)
     846        if not isinstance(this, klass) and not isinstance(other, klass):
     847            this = _wrap(this, Binary)
     848            other = _wrap(other, Binary)
     849        if reverse:
     850            return klass(this=other, expression=this)
     851        return klass(this=this, expression=other)
     852
     853    def __getitem__(self, other: ExpOrStr | t.Tuple[ExpOrStr]) -> Bracket:
     854        return Bracket(
     855            this=self.copy(), expressions=[convert(e, copy=True) for e in ensure_list(other)]
     856        )
     857
     858    def __iter__(self) -> t.Iterator:
     859        if "expressions" in self.arg_types:
     860            return iter(self.args.get("expressions") or [])
     861        # We define this because __getitem__ converts Expression into an iterable, which is
     862        # problematic because one can hit infinite loops if they do "for x in some_expr: ..."
     863        # See: https://peps.python.org/pep-0234/
     864        raise TypeError(f"'{self.__class__.__name__}' object is not iterable")
     865
     866    def isin(
     867        self,
     868        *expressions: t.Any,
     869        query: t.Optional[ExpOrStr] = None,
     870        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
     871        copy: bool = True,
     872        **opts,
     873    ) -> In:
     874        subquery = maybe_parse(query, copy=copy, **opts) if query else None
     875        if subquery and not isinstance(subquery, Subquery):
     876            subquery = subquery.subquery(copy=False)
     877
     878        return In(
     879            this=maybe_copy(self, copy),
     880            expressions=[convert(e, copy=copy) for e in expressions],
     881            query=subquery,
     882            unnest=(
     883                Unnest(
     884                    expressions=[
     885                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
     886                        for e in ensure_list(unnest)
     887                    ]
     888                )
     889                if unnest
     890                else None
     891            ),
     892        )
     893
     894    def between(self, low: t.Any, high: t.Any, copy: bool = True, **opts) -> Between:
     895        return Between(
     896            this=maybe_copy(self, copy),
     897            low=convert(low, copy=copy, **opts),
     898            high=convert(high, copy=copy, **opts),
     899        )
     900
     901    def is_(self, other: ExpOrStr) -> Is:
     902        return self._binop(Is, other)
     903
     904    def like(self, other: ExpOrStr) -> Like:
     905        return self._binop(Like, other)
     906
     907    def ilike(self, other: ExpOrStr) -> ILike:
     908        return self._binop(ILike, other)
     909
     910    def eq(self, other: t.Any) -> EQ:
     911        return self._binop(EQ, other)
     912
     913    def neq(self, other: t.Any) -> NEQ:
     914        return self._binop(NEQ, other)
     915
     916    def rlike(self, other: ExpOrStr) -> RegexpLike:
     917        return self._binop(RegexpLike, other)
     918
     919    def div(self, other: ExpOrStr, typed: bool = False, safe: bool = False) -> Div:
     920        div = self._binop(Div, other)
     921        div.args["typed"] = typed
     922        div.args["safe"] = safe
     923        return div
     924
     925    def asc(self, nulls_first: bool = True) -> Ordered:
     926        return Ordered(this=self.copy(), nulls_first=nulls_first)
     927
     928    def desc(self, nulls_first: bool = False) -> Ordered:
     929        return Ordered(this=self.copy(), desc=True, nulls_first=nulls_first)
     930
     931    def __lt__(self, other: t.Any) -> LT:
     932        return self._binop(LT, other)
     933
     934    def __le__(self, other: t.Any) -> LTE:
     935        return self._binop(LTE, other)
     936
     937    def __gt__(self, other: t.Any) -> GT:
     938        return self._binop(GT, other)
     939
     940    def __ge__(self, other: t.Any) -> GTE:
     941        return self._binop(GTE, other)
     942
     943    def __add__(self, other: t.Any) -> Add:
     944        return self._binop(Add, other)
     945
     946    def __radd__(self, other: t.Any) -> Add:
     947        return self._binop(Add, other, reverse=True)
     948
     949    def __sub__(self, other: t.Any) -> Sub:
     950        return self._binop(Sub, other)
     951
     952    def __rsub__(self, other: t.Any) -> Sub:
     953        return self._binop(Sub, other, reverse=True)
     954
     955    def __mul__(self, other: t.Any) -> Mul:
     956        return self._binop(Mul, other)
     957
     958    def __rmul__(self, other: t.Any) -> Mul:
     959        return self._binop(Mul, other, reverse=True)
     960
     961    def __truediv__(self, other: t.Any) -> Div:
     962        return self._binop(Div, other)
     963
     964    def __rtruediv__(self, other: t.Any) -> Div:
     965        return self._binop(Div, other, reverse=True)
     966
     967    def __floordiv__(self, other: t.Any) -> IntDiv:
     968        return self._binop(IntDiv, other)
     969
     970    def __rfloordiv__(self, other: t.Any) -> IntDiv:
     971        return self._binop(IntDiv, other, reverse=True)
     972
     973    def __mod__(self, other: t.Any) -> Mod:
     974        return self._binop(Mod, other)
     975
     976    def __rmod__(self, other: t.Any) -> Mod:
     977        return self._binop(Mod, other, reverse=True)
     978
     979    def __pow__(self, other: t.Any) -> Pow:
     980        return self._binop(Pow, other)
     981
     982    def __rpow__(self, other: t.Any) -> Pow:
     983        return self._binop(Pow, other, reverse=True)
     984
     985    def __and__(self, other: t.Any) -> And:
     986        return self._binop(And, other)
     987
     988    def __rand__(self, other: t.Any) -> And:
     989        return self._binop(And, other, reverse=True)
     990
     991    def __or__(self, other: t.Any) -> Or:
     992        return self._binop(Or, other)
     993
     994    def __ror__(self, other: t.Any) -> Or:
     995        return self._binop(Or, other, reverse=True)
     996
     997    def __neg__(self) -> Neg:
     998        return Neg(this=_wrap(self.copy(), Binary))
     999
    1000    def __invert__(self) -> Not:
    1001        return not_(self.copy())
    1002
    1003
    1004IntoType = t.Union[
    1005    str,
    1006    t.Type[Expression],
    1007    t.Collection[t.Union[str, t.Type[Expression]]],
    1008]
    1009ExpOrStr = t.Union[str, Expression]
    1010
    1011
    1012class Condition(Expression):
    1013    """Logical conditions like x AND y, or simply x"""
    1014
    1015
    1016class Predicate(Condition):
    1017    """Relationships like x = y, x > 1, x >= y."""
    1018
    1019
    1020class DerivedTable(Expression):
    1021    @property
    1022    def selects(self) -> t.List[Expression]:
    1023        return self.this.selects if isinstance(self.this, Query) else []
    1024
    1025    @property
    1026    def named_selects(self) -> t.List[str]:
    1027        return [select.output_name for select in self.selects]
    1028
    1029
    1030class Query(Expression):
    1031    def subquery(self, alias: t.Optional[ExpOrStr] = None, copy: bool = True) -> Subquery:
    1032        """
    1033        Returns a `Subquery` that wraps around this query.
    1034
    1035        Example:
    1036            >>> subquery = Select().select("x").from_("tbl").subquery()
    1037            >>> Select().select("x").from_(subquery).sql()
    1038            'SELECT x FROM (SELECT x FROM tbl)'
    1039
    1040        Args:
    1041            alias: an optional alias for the subquery.
    1042            copy: if `False`, modify this expression instance in-place.
    1043        """
    1044        instance = maybe_copy(self, copy)
    1045        if not isinstance(alias, Expression):
    1046            alias = TableAlias(this=to_identifier(alias)) if alias else None
    1047
    1048        return Subquery(this=instance, alias=alias)
    1049
    1050    def limit(
    1051        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1052    ) -> Q:
    1053        """
    1054        Adds a LIMIT clause to this query.
    1055
    1056        Example:
    1057            >>> select("1").union(select("1")).limit(1).sql()
    1058            'SELECT 1 UNION SELECT 1 LIMIT 1'
    1059
    1060        Args:
    1061            expression: the SQL code string to parse.
    1062                This can also be an integer.
    1063                If a `Limit` instance is passed, it will be used as-is.
    1064                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    1065            dialect: the dialect used to parse the input expression.
    1066            copy: if `False`, modify this expression instance in-place.
    1067            opts: other options to use to parse the input expressions.
    1068
    1069        Returns:
    1070            A limited Select expression.
    1071        """
    1072        return _apply_builder(
    1073            expression=expression,
    1074            instance=self,
    1075            arg="limit",
    1076            into=Limit,
    1077            prefix="LIMIT",
    1078            dialect=dialect,
    1079            copy=copy,
    1080            into_arg="expression",
    1081            **opts,
    1082        )
    1083
    1084    def offset(
    1085        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1086    ) -> Q:
    1087        """
    1088        Set the OFFSET expression.
    1089
    1090        Example:
    1091            >>> Select().from_("tbl").select("x").offset(10).sql()
    1092            'SELECT x FROM tbl OFFSET 10'
    1093
    1094        Args:
    1095            expression: the SQL code string to parse.
    1096                This can also be an integer.
    1097                If a `Offset` instance is passed, this is used as-is.
    1098                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    1099            dialect: the dialect used to parse the input expression.
    1100            copy: if `False`, modify this expression instance in-place.
    1101            opts: other options to use to parse the input expressions.
    1102
    1103        Returns:
    1104            The modified Select expression.
    1105        """
    1106        return _apply_builder(
    1107            expression=expression,
    1108            instance=self,
    1109            arg="offset",
    1110            into=Offset,
    1111            prefix="OFFSET",
    1112            dialect=dialect,
    1113            copy=copy,
    1114            into_arg="expression",
    1115            **opts,
    1116        )
    1117
    1118    def order_by(
    1119        self: Q,
    1120        *expressions: t.Optional[ExpOrStr],
    1121        append: bool = True,
    1122        dialect: DialectType = None,
    1123        copy: bool = True,
    1124        **opts,
    1125    ) -> Q:
    1126        """
    1127        Set the ORDER BY expression.
    1128
    1129        Example:
    1130            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    1131            'SELECT x FROM tbl ORDER BY x DESC'
    1132
    1133        Args:
    1134            *expressions: the SQL code strings to parse.
    1135                If a `Group` instance is passed, this is used as-is.
    1136                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    1137            append: if `True`, add to any existing expressions.
    1138                Otherwise, this flattens all the `Order` expression into a single expression.
    1139            dialect: the dialect used to parse the input expression.
    1140            copy: if `False`, modify this expression instance in-place.
    1141            opts: other options to use to parse the input expressions.
    1142
    1143        Returns:
    1144            The modified Select expression.
    1145        """
    1146        return _apply_child_list_builder(
    1147            *expressions,
    1148            instance=self,
    1149            arg="order",
    1150            append=append,
    1151            copy=copy,
    1152            prefix="ORDER BY",
    1153            into=Order,
    1154            dialect=dialect,
    1155            **opts,
    1156        )
    1157
    1158    @property
    1159    def ctes(self) -> t.List[CTE]:
    1160        """Returns a list of all the CTEs attached to this query."""
    1161        with_ = self.args.get("with")
    1162        return with_.expressions if with_ else []
    1163
    1164    @property
    1165    def selects(self) -> t.List[Expression]:
    1166        """Returns the query's projections."""
    1167        raise NotImplementedError("Query objects must implement `selects`")
    1168
    1169    @property
    1170    def named_selects(self) -> t.List[str]:
    1171        """Returns the output names of the query's projections."""
    1172        raise NotImplementedError("Query objects must implement `named_selects`")
    1173
    1174    def select(
    1175        self: Q,
    1176        *expressions: t.Optional[ExpOrStr],
    1177        append: bool = True,
    1178        dialect: DialectType = None,
    1179        copy: bool = True,
    1180        **opts,
    1181    ) -> Q:
    1182        """
    1183        Append to or set the SELECT expressions.
    1184
    1185        Example:
    1186            >>> Select().select("x", "y").sql()
    1187            'SELECT x, y'
    1188
    1189        Args:
    1190            *expressions: the SQL code strings to parse.
    1191                If an `Expression` instance is passed, it will be used as-is.
    1192            append: if `True`, add to any existing expressions.
    1193                Otherwise, this resets the expressions.
    1194            dialect: the dialect used to parse the input expressions.
    1195            copy: if `False`, modify this expression instance in-place.
    1196            opts: other options to use to parse the input expressions.
    1197
    1198        Returns:
    1199            The modified Query expression.
    1200        """
    1201        raise NotImplementedError("Query objects must implement `select`")
    1202
    1203    def with_(
    1204        self: Q,
    1205        alias: ExpOrStr,
    1206        as_: ExpOrStr,
    1207        recursive: t.Optional[bool] = None,
    1208        materialized: t.Optional[bool] = None,
    1209        append: bool = True,
    1210        dialect: DialectType = None,
    1211        copy: bool = True,
    1212        **opts,
    1213    ) -> Q:
    1214        """
    1215        Append to or set the common table expressions.
    1216
    1217        Example:
    1218            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    1219            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    1220
    1221        Args:
    1222            alias: the SQL code string to parse as the table name.
    1223                If an `Expression` instance is passed, this is used as-is.
    1224            as_: the SQL code string to parse as the table expression.
    1225                If an `Expression` instance is passed, it will be used as-is.
    1226            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    1227            materialized: set the MATERIALIZED part of the expression.
    1228            append: if `True`, add to any existing expressions.
    1229                Otherwise, this resets the expressions.
    1230            dialect: the dialect used to parse the input expression.
    1231            copy: if `False`, modify this expression instance in-place.
    1232            opts: other options to use to parse the input expressions.
    1233
    1234        Returns:
    1235            The modified expression.
    1236        """
    1237        return _apply_cte_builder(
    1238            self,
    1239            alias,
    1240            as_,
    1241            recursive=recursive,
    1242            materialized=materialized,
    1243            append=append,
    1244            dialect=dialect,
    1245            copy=copy,
    1246            **opts,
    1247        )
    1248
    1249    def union(
    1250        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1251    ) -> Union:
    1252        """
    1253        Builds a UNION expression.
    1254
    1255        Example:
    1256            >>> import sqlglot
    1257            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    1258            'SELECT * FROM foo UNION SELECT * FROM bla'
    1259
    1260        Args:
    1261            expression: the SQL code string.
    1262                If an `Expression` instance is passed, it will be used as-is.
    1263            distinct: set the DISTINCT flag if and only if this is true.
    1264            dialect: the dialect used to parse the input expression.
    1265            opts: other options to use to parse the input expressions.
    1266
    1267        Returns:
    1268            The new Union expression.
    1269        """
    1270        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    1271
    1272    def intersect(
    1273        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1274    ) -> Intersect:
    1275        """
    1276        Builds an INTERSECT expression.
    1277
    1278        Example:
    1279            >>> import sqlglot
    1280            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    1281            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    1282
    1283        Args:
    1284            expression: the SQL code string.
    1285                If an `Expression` instance is passed, it will be used as-is.
    1286            distinct: set the DISTINCT flag if and only if this is true.
    1287            dialect: the dialect used to parse the input expression.
    1288            opts: other options to use to parse the input expressions.
    1289
    1290        Returns:
    1291            The new Intersect expression.
    1292        """
    1293        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    1294
    1295    def except_(
    1296        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1297    ) -> Except:
    1298        """
    1299        Builds an EXCEPT expression.
    1300
    1301        Example:
    1302            >>> import sqlglot
    1303            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    1304            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    1305
    1306        Args:
    1307            expression: the SQL code string.
    1308                If an `Expression` instance is passed, it will be used as-is.
    1309            distinct: set the DISTINCT flag if and only if this is true.
    1310            dialect: the dialect used to parse the input expression.
    1311            opts: other options to use to parse the input expressions.
    1312
    1313        Returns:
    1314            The new Except expression.
    1315        """
    1316        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    1317
    1318
    1319class UDTF(DerivedTable):
    1320    @property
    1321    def selects(self) -> t.List[Expression]:
    1322        alias = self.args.get("alias")
    1323        return alias.columns if alias else []
    1324
    1325
    1326class Cache(Expression):
    1327    arg_types = {
    1328        "this": True,
    1329        "lazy": False,
    1330        "options": False,
    1331        "expression": False,
    1332    }
    1333
    1334
    1335class Uncache(Expression):
    1336    arg_types = {"this": True, "exists": False}
    1337
    1338
    1339class Refresh(Expression):
    1340    pass
    1341
    1342
    1343class DDL(Expression):
    1344    @property
    1345    def ctes(self) -> t.List[CTE]:
    1346        """Returns a list of all the CTEs attached to this statement."""
    1347        with_ = self.args.get("with")
    1348        return with_.expressions if with_ else []
    1349
    1350    @property
    1351    def selects(self) -> t.List[Expression]:
    1352        """If this statement contains a query (e.g. a CTAS), this returns the query's projections."""
    1353        return self.expression.selects if isinstance(self.expression, Query) else []
    1354
    1355    @property
    1356    def named_selects(self) -> t.List[str]:
    1357        """
    1358        If this statement contains a query (e.g. a CTAS), this returns the output
    1359        names of the query's projections.
    1360        """
    1361        return self.expression.named_selects if isinstance(self.expression, Query) else []
    1362
    1363
    1364class DML(Expression):
    1365    def returning(
    1366        self,
    1367        expression: ExpOrStr,
    1368        dialect: DialectType = None,
    1369        copy: bool = True,
    1370        **opts,
    1371    ) -> DML:
    1372        """
    1373        Set the RETURNING expression. Not supported by all dialects.
    1374
    1375        Example:
    1376            >>> delete("tbl").returning("*", dialect="postgres").sql()
    1377            'DELETE FROM tbl RETURNING *'
    1378
    1379        Args:
    1380            expression: the SQL code strings to parse.
    1381                If an `Expression` instance is passed, it will be used as-is.
    1382            dialect: the dialect used to parse the input expressions.
    1383            copy: if `False`, modify this expression instance in-place.
    1384            opts: other options to use to parse the input expressions.
    1385
    1386        Returns:
    1387            Delete: the modified expression.
    1388        """
    1389        return _apply_builder(
    1390            expression=expression,
    1391            instance=self,
    1392            arg="returning",
    1393            prefix="RETURNING",
    1394            dialect=dialect,
    1395            copy=copy,
    1396            into=Returning,
    1397            **opts,
    1398        )
    1399
    1400
    1401class Create(DDL):
    1402    arg_types = {
    1403        "with": False,
    1404        "this": True,
    1405        "kind": True,
    1406        "expression": False,
    1407        "exists": False,
    1408        "properties": False,
    1409        "replace": False,
    1410        "refresh": False,
    1411        "unique": False,
    1412        "indexes": False,
    1413        "no_schema_binding": False,
    1414        "begin": False,
    1415        "end": False,
    1416        "clone": False,
    1417        "concurrently": False,
    1418        "clustered": False,
    1419    }
    1420
    1421    @property
    1422    def kind(self) -> t.Optional[str]:
    1423        kind = self.args.get("kind")
    1424        return kind and kind.upper()
    1425
    1426
    1427class SequenceProperties(Expression):
    1428    arg_types = {
    1429        "increment": False,
    1430        "minvalue": False,
    1431        "maxvalue": False,
    1432        "cache": False,
    1433        "start": False,
    1434        "owned": False,
    1435        "options": False,
    1436    }
    1437
    1438
    1439class TruncateTable(Expression):
    1440    arg_types = {
    1441        "expressions": True,
    1442        "is_database": False,
    1443        "exists": False,
    1444        "only": False,
    1445        "cluster": False,
    1446        "identity": False,
    1447        "option": False,
    1448        "partition": False,
    1449    }
    1450
    1451
    1452# https://docs.snowflake.com/en/sql-reference/sql/create-clone
    1453# https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#create_table_clone_statement
    1454# https://cloud.google.com/bigquery/docs/reference/standard-sql/data-definition-language#create_table_copy
    1455class Clone(Expression):
    1456    arg_types = {"this": True, "shallow": False, "copy": False}
    1457
    1458
    1459class Describe(Expression):
    1460    arg_types = {
    1461        "this": True,
    1462        "style": False,
    1463        "kind": False,
    1464        "expressions": False,
    1465        "partition": False,
    1466    }
    1467
    1468
    1469# https://duckdb.org/docs/guides/meta/summarize.html
    1470class Summarize(Expression):
    1471    arg_types = {"this": True, "table": False}
    1472
    1473
    1474class Kill(Expression):
    1475    arg_types = {"this": True, "kind": False}
    1476
    1477
    1478class Pragma(Expression):
    1479    pass
    1480
    1481
    1482class Declare(Expression):
    1483    arg_types = {"expressions": True}
    1484
    1485
    1486class DeclareItem(Expression):
    1487    arg_types = {"this": True, "kind": True, "default": False}
    1488
    1489
    1490class Set(Expression):
    1491    arg_types = {"expressions": False, "unset": False, "tag": False}
    1492
    1493
    1494class Heredoc(Expression):
    1495    arg_types = {"this": True, "tag": False}
    1496
    1497
    1498class SetItem(Expression):
    1499    arg_types = {
    1500        "this": False,
    1501        "expressions": False,
    1502        "kind": False,
    1503        "collate": False,  # MySQL SET NAMES statement
    1504        "global": False,
    1505    }
    1506
    1507
    1508class Show(Expression):
    1509    arg_types = {
    1510        "this": True,
    1511        "history": False,
    1512        "terse": False,
    1513        "target": False,
    1514        "offset": False,
    1515        "starts_with": False,
    1516        "limit": False,
    1517        "from": False,
    1518        "like": False,
    1519        "where": False,
    1520        "db": False,
    1521        "scope": False,
    1522        "scope_kind": False,
    1523        "full": False,
    1524        "mutex": False,
    1525        "query": False,
    1526        "channel": False,
    1527        "global": False,
    1528        "log": False,
    1529        "position": False,
    1530        "types": False,
    1531    }
    1532
    1533
    1534class UserDefinedFunction(Expression):
    1535    arg_types = {"this": True, "expressions": False, "wrapped": False}
    1536
    1537
    1538class CharacterSet(Expression):
    1539    arg_types = {"this": True, "default": False}
    1540
    1541
    1542class With(Expression):
    1543    arg_types = {"expressions": True, "recursive": False}
    1544
    1545    @property
    1546    def recursive(self) -> bool:
    1547        return bool(self.args.get("recursive"))
    1548
    1549
    1550class WithinGroup(Expression):
    1551    arg_types = {"this": True, "expression": False}
    1552
    1553
    1554# clickhouse supports scalar ctes
    1555# https://clickhouse.com/docs/en/sql-reference/statements/select/with
    1556class CTE(DerivedTable):
    1557    arg_types = {
    1558        "this": True,
    1559        "alias": True,
    1560        "scalar": False,
    1561        "materialized": False,
    1562    }
    1563
    1564
    1565class ProjectionDef(Expression):
    1566    arg_types = {"this": True, "expression": True}
    1567
    1568
    1569class TableAlias(Expression):
    1570    arg_types = {"this": False, "columns": False}
    1571
    1572    @property
    1573    def columns(self):
    1574        return self.args.get("columns") or []
    1575
    1576
    1577class BitString(Condition):
    1578    pass
    1579
    1580
    1581class HexString(Condition):
    1582    pass
    1583
    1584
    1585class ByteString(Condition):
    1586    pass
    1587
    1588
    1589class RawString(Condition):
    1590    pass
    1591
    1592
    1593class UnicodeString(Condition):
    1594    arg_types = {"this": True, "escape": False}
    1595
    1596
    1597class Column(Condition):
    1598    arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False}
    1599
    1600    @property
    1601    def table(self) -> str:
    1602        return self.text("table")
    1603
    1604    @property
    1605    def db(self) -> str:
    1606        return self.text("db")
    1607
    1608    @property
    1609    def catalog(self) -> str:
    1610        return self.text("catalog")
    1611
    1612    @property
    1613    def output_name(self) -> str:
    1614        return self.name
    1615
    1616    @property
    1617    def parts(self) -> t.List[Identifier]:
    1618        """Return the parts of a column in order catalog, db, table, name."""
    1619        return [
    1620            t.cast(Identifier, self.args[part])
    1621            for part in ("catalog", "db", "table", "this")
    1622            if self.args.get(part)
    1623        ]
    1624
    1625    def to_dot(self) -> Dot | Identifier:
    1626        """Converts the column into a dot expression."""
    1627        parts = self.parts
    1628        parent = self.parent
    1629
    1630        while parent:
    1631            if isinstance(parent, Dot):
    1632                parts.append(parent.expression)
    1633            parent = parent.parent
    1634
    1635        return Dot.build(deepcopy(parts)) if len(parts) > 1 else parts[0]
    1636
    1637
    1638class ColumnPosition(Expression):
    1639    arg_types = {"this": False, "position": True}
    1640
    1641
    1642class ColumnDef(Expression):
    1643    arg_types = {
    1644        "this": True,
    1645        "kind": False,
    1646        "constraints": False,
    1647        "exists": False,
    1648        "position": False,
    1649    }
    1650
    1651    @property
    1652    def constraints(self) -> t.List[ColumnConstraint]:
    1653        return self.args.get("constraints") or []
    1654
    1655    @property
    1656    def kind(self) -> t.Optional[DataType]:
    1657        return self.args.get("kind")
    1658
    1659
    1660class AlterColumn(Expression):
    1661    arg_types = {
    1662        "this": True,
    1663        "dtype": False,
    1664        "collate": False,
    1665        "using": False,
    1666        "default": False,
    1667        "drop": False,
    1668        "comment": False,
    1669        "allow_null": False,
    1670    }
    1671
    1672
    1673# https://docs.aws.amazon.com/redshift/latest/dg/r_ALTER_TABLE.html
    1674class AlterDistStyle(Expression):
    1675    pass
    1676
    1677
    1678class AlterSortKey(Expression):
    1679    arg_types = {"this": False, "expressions": False, "compound": False}
    1680
    1681
    1682class AlterSet(Expression):
    1683    arg_types = {
    1684        "expressions": False,
    1685        "option": False,
    1686        "tablespace": False,
    1687        "access_method": False,
    1688        "file_format": False,
    1689        "copy_options": False,
    1690        "tag": False,
    1691        "location": False,
    1692        "serde": False,
    1693    }
    1694
    1695
    1696class RenameColumn(Expression):
    1697    arg_types = {"this": True, "to": True, "exists": False}
    1698
    1699
    1700class RenameTable(Expression):
    1701    pass
    1702
    1703
    1704class SwapTable(Expression):
    1705    pass
    1706
    1707
    1708class Comment(Expression):
    1709    arg_types = {
    1710        "this": True,
    1711        "kind": True,
    1712        "expression": True,
    1713        "exists": False,
    1714        "materialized": False,
    1715    }
    1716
    1717
    1718class Comprehension(Expression):
    1719    arg_types = {"this": True, "expression": True, "iterator": True, "condition": False}
    1720
    1721
    1722# https://clickhouse.com/docs/en/engines/table-engines/mergetree-family/mergetree#mergetree-table-ttl
    1723class MergeTreeTTLAction(Expression):
    1724    arg_types = {
    1725        "this": True,
    1726        "delete": False,
    1727        "recompress": False,
    1728        "to_disk": False,
    1729        "to_volume": False,
    1730    }
    1731
    1732
    1733# https://clickhouse.com/docs/en/engines/table-engines/mergetree-family/mergetree#mergetree-table-ttl
    1734class MergeTreeTTL(Expression):
    1735    arg_types = {
    1736        "expressions": True,
    1737        "where": False,
    1738        "group": False,
    1739        "aggregates": False,
    1740    }
    1741
    1742
    1743# https://dev.mysql.com/doc/refman/8.0/en/create-table.html
    1744class IndexConstraintOption(Expression):
    1745    arg_types = {
    1746        "key_block_size": False,
    1747        "using": False,
    1748        "parser": False,
    1749        "comment": False,
    1750        "visible": False,
    1751        "engine_attr": False,
    1752        "secondary_engine_attr": False,
    1753    }
    1754
    1755
    1756class ColumnConstraint(Expression):
    1757    arg_types = {"this": False, "kind": True}
    1758
    1759    @property
    1760    def kind(self) -> ColumnConstraintKind:
    1761        return self.args["kind"]
    1762
    1763
    1764class ColumnConstraintKind(Expression):
    1765    pass
    1766
    1767
    1768class AutoIncrementColumnConstraint(ColumnConstraintKind):
    1769    pass
    1770
    1771
    1772class PeriodForSystemTimeConstraint(ColumnConstraintKind):
    1773    arg_types = {"this": True, "expression": True}
    1774
    1775
    1776class CaseSpecificColumnConstraint(ColumnConstraintKind):
    1777    arg_types = {"not_": True}
    1778
    1779
    1780class CharacterSetColumnConstraint(ColumnConstraintKind):
    1781    arg_types = {"this": True}
    1782
    1783
    1784class CheckColumnConstraint(ColumnConstraintKind):
    1785    arg_types = {"this": True, "enforced": False}
    1786
    1787
    1788class ClusteredColumnConstraint(ColumnConstraintKind):
    1789    pass
    1790
    1791
    1792class CollateColumnConstraint(ColumnConstraintKind):
    1793    pass
    1794
    1795
    1796class CommentColumnConstraint(ColumnConstraintKind):
    1797    pass
    1798
    1799
    1800class CompressColumnConstraint(ColumnConstraintKind):
    1801    arg_types = {"this": False}
    1802
    1803
    1804class DateFormatColumnConstraint(ColumnConstraintKind):
    1805    arg_types = {"this": True}
    1806
    1807
    1808class DefaultColumnConstraint(ColumnConstraintKind):
    1809    pass
    1810
    1811
    1812class EncodeColumnConstraint(ColumnConstraintKind):
    1813    pass
    1814
    1815
    1816# https://www.postgresql.org/docs/current/sql-createtable.html#SQL-CREATETABLE-EXCLUDE
    1817class ExcludeColumnConstraint(ColumnConstraintKind):
    1818    pass
    1819
    1820
    1821class EphemeralColumnConstraint(ColumnConstraintKind):
    1822    arg_types = {"this": False}
    1823
    1824
    1825class WithOperator(Expression):
    1826    arg_types = {"this": True, "op": True}
    1827
    1828
    1829class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    1830    # this: True -> ALWAYS, this: False -> BY DEFAULT
    1831    arg_types = {
    1832        "this": False,
    1833        "expression": False,
    1834        "on_null": False,
    1835        "start": False,
    1836        "increment": False,
    1837        "minvalue": False,
    1838        "maxvalue": False,
    1839        "cycle": False,
    1840    }
    1841
    1842
    1843class GeneratedAsRowColumnConstraint(ColumnConstraintKind):
    1844    arg_types = {"start": False, "hidden": False}
    1845
    1846
    1847# https://dev.mysql.com/doc/refman/8.0/en/create-table.html
    1848# https://github.com/ClickHouse/ClickHouse/blob/master/src/Parsers/ParserCreateQuery.h#L646
    1849class IndexColumnConstraint(ColumnConstraintKind):
    1850    arg_types = {
    1851        "this": False,
    1852        "expressions": False,
    1853        "kind": False,
    1854        "index_type": False,
    1855        "options": False,
    1856        "expression": False,  # Clickhouse
    1857        "granularity": False,
    1858    }
    1859
    1860
    1861class InlineLengthColumnConstraint(ColumnConstraintKind):
    1862    pass
    1863
    1864
    1865class NonClusteredColumnConstraint(ColumnConstraintKind):
    1866    pass
    1867
    1868
    1869class NotForReplicationColumnConstraint(ColumnConstraintKind):
    1870    arg_types = {}
    1871
    1872
    1873# https://docs.snowflake.com/en/sql-reference/sql/create-table
    1874class MaskingPolicyColumnConstraint(ColumnConstraintKind):
    1875    arg_types = {"this": True, "expressions": False}
    1876
    1877
    1878class NotNullColumnConstraint(ColumnConstraintKind):
    1879    arg_types = {"allow_null": False}
    1880
    1881
    1882# https://dev.mysql.com/doc/refman/5.7/en/timestamp-initialization.html
    1883class OnUpdateColumnConstraint(ColumnConstraintKind):
    1884    pass
    1885
    1886
    1887# https://docs.snowflake.com/en/sql-reference/sql/create-table
    1888class TagColumnConstraint(ColumnConstraintKind):
    1889    arg_types = {"expressions": True}
    1890
    1891
    1892# https://docs.snowflake.com/en/sql-reference/sql/create-external-table#optional-parameters
    1893class TransformColumnConstraint(ColumnConstraintKind):
    1894    pass
    1895
    1896
    1897class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    1898    arg_types = {"desc": False}
    1899
    1900
    1901class TitleColumnConstraint(ColumnConstraintKind):
    1902    pass
    1903
    1904
    1905class UniqueColumnConstraint(ColumnConstraintKind):
    1906    arg_types = {"this": False, "index_type": False, "on_conflict": False, "nulls": False}
    1907
    1908
    1909class UppercaseColumnConstraint(ColumnConstraintKind):
    1910    arg_types: t.Dict[str, t.Any] = {}
    1911
    1912
    1913class PathColumnConstraint(ColumnConstraintKind):
    1914    pass
    1915
    1916
    1917# https://docs.snowflake.com/en/sql-reference/sql/create-table
    1918class ProjectionPolicyColumnConstraint(ColumnConstraintKind):
    1919    pass
    1920
    1921
    1922# computed column expression
    1923# https://learn.microsoft.com/en-us/sql/t-sql/statements/create-table-transact-sql?view=sql-server-ver16
    1924class ComputedColumnConstraint(ColumnConstraintKind):
    1925    arg_types = {"this": True, "persisted": False, "not_null": False}
    1926
    1927
    1928class Constraint(Expression):
    1929    arg_types = {"this": True, "expressions": True}
    1930
    1931
    1932class Delete(DML):
    1933    arg_types = {
    1934        "with": False,
    1935        "this": False,
    1936        "using": False,
    1937        "where": False,
    1938        "returning": False,
    1939        "limit": False,
    1940        "tables": False,  # Multiple-Table Syntax (MySQL)
    1941    }
    1942
    1943    def delete(
    1944        self,
    1945        table: ExpOrStr,
    1946        dialect: DialectType = None,
    1947        copy: bool = True,
    1948        **opts,
    1949    ) -> Delete:
    1950        """
    1951        Create a DELETE expression or replace the table on an existing DELETE expression.
    1952
    1953        Example:
    1954            >>> delete("tbl").sql()
    1955            'DELETE FROM tbl'
    1956
    1957        Args:
    1958            table: the table from which to delete.
    1959            dialect: the dialect used to parse the input expression.
    1960            copy: if `False`, modify this expression instance in-place.
    1961            opts: other options to use to parse the input expressions.
    1962
    1963        Returns:
    1964            Delete: the modified expression.
    1965        """
    1966        return _apply_builder(
    1967            expression=table,
    1968            instance=self,
    1969            arg="this",
    1970            dialect=dialect,
    1971            into=Table,
    1972            copy=copy,
    1973            **opts,
    1974        )
    1975
    1976    def where(
    1977        self,
    1978        *expressions: t.Optional[ExpOrStr],
    1979        append: bool = True,
    1980        dialect: DialectType = None,
    1981        copy: bool = True,
    1982        **opts,
    1983    ) -> Delete:
    1984        """
    1985        Append to or set the WHERE expressions.
    1986
    1987        Example:
    1988            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    1989            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    1990
    1991        Args:
    1992            *expressions: the SQL code strings to parse.
    1993                If an `Expression` instance is passed, it will be used as-is.
    1994                Multiple expressions are combined with an AND operator.
    1995            append: if `True`, AND the new expressions to any existing expression.
    1996                Otherwise, this resets the expression.
    1997            dialect: the dialect used to parse the input expressions.
    1998            copy: if `False`, modify this expression instance in-place.
    1999            opts: other options to use to parse the input expressions.
    2000
    2001        Returns:
    2002            Delete: the modified expression.
    2003        """
    2004        return _apply_conjunction_builder(
    2005            *expressions,
    2006            instance=self,
    2007            arg="where",
    2008            append=append,
    2009            into=Where,
    2010            dialect=dialect,
    2011            copy=copy,
    2012            **opts,
    2013        )
    2014
    2015
    2016class Drop(Expression):
    2017    arg_types = {
    2018        "this": False,
    2019        "kind": False,
    2020        "expressions": False,
    2021        "exists": False,
    2022        "temporary": False,
    2023        "materialized": False,
    2024        "cascade": False,
    2025        "constraints": False,
    2026        "purge": False,
    2027        "cluster": False,
    2028        "concurrently": False,
    2029    }
    2030
    2031    @property
    2032    def kind(self) -> t.Optional[str]:
    2033        kind = self.args.get("kind")
    2034        return kind and kind.upper()
    2035
    2036
    2037class Filter(Expression):
    2038    arg_types = {"this": True, "expression": True}
    2039
    2040
    2041class Check(Expression):
    2042    pass
    2043
    2044
    2045class Changes(Expression):
    2046    arg_types = {"information": True, "at_before": False, "end": False}
    2047
    2048
    2049# https://docs.snowflake.com/en/sql-reference/constructs/connect-by
    2050class Connect(Expression):
    2051    arg_types = {"start": False, "connect": True, "nocycle": False}
    2052
    2053
    2054class CopyParameter(Expression):
    2055    arg_types = {"this": True, "expression": False, "expressions": False}
    2056
    2057
    2058class Copy(DML):
    2059    arg_types = {
    2060        "this": True,
    2061        "kind": True,
    2062        "files": True,
    2063        "credentials": False,
    2064        "format": False,
    2065        "params": False,
    2066    }
    2067
    2068
    2069class Credentials(Expression):
    2070    arg_types = {
    2071        "credentials": False,
    2072        "encryption": False,
    2073        "storage": False,
    2074        "iam_role": False,
    2075        "region": False,
    2076    }
    2077
    2078
    2079class Prior(Expression):
    2080    pass
    2081
    2082
    2083class Directory(Expression):
    2084    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    2085    arg_types = {"this": True, "local": False, "row_format": False}
    2086
    2087
    2088class ForeignKey(Expression):
    2089    arg_types = {
    2090        "expressions": True,
    2091        "reference": False,
    2092        "delete": False,
    2093        "update": False,
    2094    }
    2095
    2096
    2097class ColumnPrefix(Expression):
    2098    arg_types = {"this": True, "expression": True}
    2099
    2100
    2101class PrimaryKey(Expression):
    2102    arg_types = {"expressions": True, "options": False}
    2103
    2104
    2105# https://www.postgresql.org/docs/9.1/sql-selectinto.html
    2106# https://docs.aws.amazon.com/redshift/latest/dg/r_SELECT_INTO.html#r_SELECT_INTO-examples
    2107class Into(Expression):
    2108    arg_types = {"this": True, "temporary": False, "unlogged": False}
    2109
    2110
    2111class From(Expression):
    2112    @property
    2113    def name(self) -> str:
    2114        return self.this.name
    2115
    2116    @property
    2117    def alias_or_name(self) -> str:
    2118        return self.this.alias_or_name
    2119
    2120
    2121class Having(Expression):
    2122    pass
    2123
    2124
    2125class Hint(Expression):
    2126    arg_types = {"expressions": True}
    2127
    2128
    2129class JoinHint(Expression):
    2130    arg_types = {"this": True, "expressions": True}
    2131
    2132
    2133class Identifier(Expression):
    2134    arg_types = {"this": True, "quoted": False, "global": False, "temporary": False}
    2135
    2136    @property
    2137    def quoted(self) -> bool:
    2138        return bool(self.args.get("quoted"))
    2139
    2140    @property
    2141    def hashable_args(self) -> t.Any:
    2142        return (self.this, self.quoted)
    2143
    2144    @property
    2145    def output_name(self) -> str:
    2146        return self.name
    2147
    2148
    2149# https://www.postgresql.org/docs/current/indexes-opclass.html
    2150class Opclass(Expression):
    2151    arg_types = {"this": True, "expression": True}
    2152
    2153
    2154class Index(Expression):
    2155    arg_types = {
    2156        "this": False,
    2157        "table": False,
    2158        "unique": False,
    2159        "primary": False,
    2160        "amp": False,  # teradata
    2161        "params": False,
    2162    }
    2163
    2164
    2165class IndexParameters(Expression):
    2166    arg_types = {
    2167        "using": False,
    2168        "include": False,
    2169        "columns": False,
    2170        "with_storage": False,
    2171        "partition_by": False,
    2172        "tablespace": False,
    2173        "where": False,
    2174        "on": False,
    2175    }
    2176
    2177
    2178class Insert(DDL, DML):
    2179    arg_types = {
    2180        "hint": False,
    2181        "with": False,
    2182        "is_function": False,
    2183        "this": False,
    2184        "expression": False,
    2185        "conflict": False,
    2186        "returning": False,
    2187        "overwrite": False,
    2188        "exists": False,
    2189        "alternative": False,
    2190        "where": False,
    2191        "ignore": False,
    2192        "by_name": False,
    2193        "stored": False,
    2194        "partition": False,
    2195        "settings": False,
    2196        "source": False,
    2197    }
    2198
    2199    def with_(
    2200        self,
    2201        alias: ExpOrStr,
    2202        as_: ExpOrStr,
    2203        recursive: t.Optional[bool] = None,
    2204        materialized: t.Optional[bool] = None,
    2205        append: bool = True,
    2206        dialect: DialectType = None,
    2207        copy: bool = True,
    2208        **opts,
    2209    ) -> Insert:
    2210        """
    2211        Append to or set the common table expressions.
    2212
    2213        Example:
    2214            >>> insert("SELECT x FROM cte", "t").with_("cte", as_="SELECT * FROM tbl").sql()
    2215            'WITH cte AS (SELECT * FROM tbl) INSERT INTO t SELECT x FROM cte'
    2216
    2217        Args:
    2218            alias: the SQL code string to parse as the table name.
    2219                If an `Expression` instance is passed, this is used as-is.
    2220            as_: the SQL code string to parse as the table expression.
    2221                If an `Expression` instance is passed, it will be used as-is.
    2222            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    2223            materialized: set the MATERIALIZED part of the expression.
    2224            append: if `True`, add to any existing expressions.
    2225                Otherwise, this resets the expressions.
    2226            dialect: the dialect used to parse the input expression.
    2227            copy: if `False`, modify this expression instance in-place.
    2228            opts: other options to use to parse the input expressions.
    2229
    2230        Returns:
    2231            The modified expression.
    2232        """
    2233        return _apply_cte_builder(
    2234            self,
    2235            alias,
    2236            as_,
    2237            recursive=recursive,
    2238            materialized=materialized,
    2239            append=append,
    2240            dialect=dialect,
    2241            copy=copy,
    2242            **opts,
    2243        )
    2244
    2245
    2246class ConditionalInsert(Expression):
    2247    arg_types = {"this": True, "expression": False, "else_": False}
    2248
    2249
    2250class MultitableInserts(Expression):
    2251    arg_types = {"expressions": True, "kind": True, "source": True}
    2252
    2253
    2254class OnConflict(Expression):
    2255    arg_types = {
    2256        "duplicate": False,
    2257        "expressions": False,
    2258        "action": False,
    2259        "conflict_keys": False,
    2260        "constraint": False,
    2261    }
    2262
    2263
    2264class OnCondition(Expression):
    2265    arg_types = {"error": False, "empty": False, "null": False}
    2266
    2267
    2268class Returning(Expression):
    2269    arg_types = {"expressions": True, "into": False}
    2270
    2271
    2272# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html
    2273class Introducer(Expression):
    2274    arg_types = {"this": True, "expression": True}
    2275
    2276
    2277# national char, like n'utf8'
    2278class National(Expression):
    2279    pass
    2280
    2281
    2282class LoadData(Expression):
    2283    arg_types = {
    2284        "this": True,
    2285        "local": False,
    2286        "overwrite": False,
    2287        "inpath": True,
    2288        "partition": False,
    2289        "input_format": False,
    2290        "serde": False,
    2291    }
    2292
    2293
    2294class Partition(Expression):
    2295    arg_types = {"expressions": True}
    2296
    2297
    2298class PartitionRange(Expression):
    2299    arg_types = {"this": True, "expression": True}
    2300
    2301
    2302# https://clickhouse.com/docs/en/sql-reference/statements/alter/partition#how-to-set-partition-expression
    2303class PartitionId(Expression):
    2304    pass
    2305
    2306
    2307class Fetch(Expression):
    2308    arg_types = {
    2309        "direction": False,
    2310        "count": False,
    2311        "percent": False,
    2312        "with_ties": False,
    2313    }
    2314
    2315
    2316class Group(Expression):
    2317    arg_types = {
    2318        "expressions": False,
    2319        "grouping_sets": False,
    2320        "cube": False,
    2321        "rollup": False,
    2322        "totals": False,
    2323        "all": False,
    2324    }
    2325
    2326
    2327class Cube(Expression):
    2328    arg_types = {"expressions": False}
    2329
    2330
    2331class Rollup(Expression):
    2332    arg_types = {"expressions": False}
    2333
    2334
    2335class GroupingSets(Expression):
    2336    arg_types = {"expressions": True}
    2337
    2338
    2339class Lambda(Expression):
    2340    arg_types = {"this": True, "expressions": True}
    2341
    2342
    2343class Limit(Expression):
    2344    arg_types = {"this": False, "expression": True, "offset": False, "expressions": False}
    2345
    2346
    2347class Literal(Condition):
    2348    arg_types = {"this": True, "is_string": True}
    2349
    2350    @property
    2351    def hashable_args(self) -> t.Any:
    2352        return (self.this, self.args.get("is_string"))
    2353
    2354    @classmethod
    2355    def number(cls, number) -> Literal:
    2356        return cls(this=str(number), is_string=False)
    2357
    2358    @classmethod
    2359    def string(cls, string) -> Literal:
    2360        return cls(this=str(string), is_string=True)
    2361
    2362    @property
    2363    def output_name(self) -> str:
    2364        return self.name
    2365
    2366    def to_py(self) -> int | str | Decimal:
    2367        if self.is_number:
    2368            try:
    2369                return int(self.this)
    2370            except ValueError:
    2371                return Decimal(self.this)
    2372        return self.this
    2373
    2374
    2375class Join(Expression):
    2376    arg_types = {
    2377        "this": True,
    2378        "on": False,
    2379        "side": False,
    2380        "kind": False,
    2381        "using": False,
    2382        "method": False,
    2383        "global": False,
    2384        "hint": False,
    2385        "match_condition": False,  # Snowflake
    2386    }
    2387
    2388    @property
    2389    def method(self) -> str:
    2390        return self.text("method").upper()
    2391
    2392    @property
    2393    def kind(self) -> str:
    2394        return self.text("kind").upper()
    2395
    2396    @property
    2397    def side(self) -> str:
    2398        return self.text("side").upper()
    2399
    2400    @property
    2401    def hint(self) -> str:
    2402        return self.text("hint").upper()
    2403
    2404    @property
    2405    def alias_or_name(self) -> str:
    2406        return self.this.alias_or_name
    2407
    2408    def on(
    2409        self,
    2410        *expressions: t.Optional[ExpOrStr],
    2411        append: bool = True,
    2412        dialect: DialectType = None,
    2413        copy: bool = True,
    2414        **opts,
    2415    ) -> Join:
    2416        """
    2417        Append to or set the ON expressions.
    2418
    2419        Example:
    2420            >>> import sqlglot
    2421            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    2422            'JOIN x ON y = 1'
    2423
    2424        Args:
    2425            *expressions: the SQL code strings to parse.
    2426                If an `Expression` instance is passed, it will be used as-is.
    2427                Multiple expressions are combined with an AND operator.
    2428            append: if `True`, AND the new expressions to any existing expression.
    2429                Otherwise, this resets the expression.
    2430            dialect: the dialect used to parse the input expressions.
    2431            copy: if `False`, modify this expression instance in-place.
    2432            opts: other options to use to parse the input expressions.
    2433
    2434        Returns:
    2435            The modified Join expression.
    2436        """
    2437        join = _apply_conjunction_builder(
    2438            *expressions,
    2439            instance=self,
    2440            arg="on",
    2441            append=append,
    2442            dialect=dialect,
    2443            copy=copy,
    2444            **opts,
    2445        )
    2446
    2447        if join.kind == "CROSS":
    2448            join.set("kind", None)
    2449
    2450        return join
    2451
    2452    def using(
    2453        self,
    2454        *expressions: t.Optional[ExpOrStr],
    2455        append: bool = True,
    2456        dialect: DialectType = None,
    2457        copy: bool = True,
    2458        **opts,
    2459    ) -> Join:
    2460        """
    2461        Append to or set the USING expressions.
    2462
    2463        Example:
    2464            >>> import sqlglot
    2465            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    2466            'JOIN x USING (foo, bla)'
    2467
    2468        Args:
    2469            *expressions: the SQL code strings to parse.
    2470                If an `Expression` instance is passed, it will be used as-is.
    2471            append: if `True`, concatenate the new expressions to the existing "using" list.
    2472                Otherwise, this resets the expression.
    2473            dialect: the dialect used to parse the input expressions.
    2474            copy: if `False`, modify this expression instance in-place.
    2475            opts: other options to use to parse the input expressions.
    2476
    2477        Returns:
    2478            The modified Join expression.
    2479        """
    2480        join = _apply_list_builder(
    2481            *expressions,
    2482            instance=self,
    2483            arg="using",
    2484            append=append,
    2485            dialect=dialect,
    2486            copy=copy,
    2487            **opts,
    2488        )
    2489
    2490        if join.kind == "CROSS":
    2491            join.set("kind", None)
    2492
    2493        return join
    2494
    2495
    2496class Lateral(UDTF):
    2497    arg_types = {
    2498        "this": True,
    2499        "view": False,
    2500        "outer": False,
    2501        "alias": False,
    2502        "cross_apply": False,  # True -> CROSS APPLY, False -> OUTER APPLY
    2503    }
    2504
    2505
    2506class MatchRecognizeMeasure(Expression):
    2507    arg_types = {
    2508        "this": True,
    2509        "window_frame": False,
    2510    }
    2511
    2512
    2513class MatchRecognize(Expression):
    2514    arg_types = {
    2515        "partition_by": False,
    2516        "order": False,
    2517        "measures": False,
    2518        "rows": False,
    2519        "after": False,
    2520        "pattern": False,
    2521        "define": False,
    2522        "alias": False,
    2523    }
    2524
    2525
    2526# Clickhouse FROM FINAL modifier
    2527# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier
    2528class Final(Expression):
    2529    pass
    2530
    2531
    2532class Offset(Expression):
    2533    arg_types = {"this": False, "expression": True, "expressions": False}
    2534
    2535
    2536class Order(Expression):
    2537    arg_types = {"this": False, "expressions": True, "siblings": False}
    2538
    2539
    2540# https://clickhouse.com/docs/en/sql-reference/statements/select/order-by#order-by-expr-with-fill-modifier
    2541class WithFill(Expression):
    2542    arg_types = {
    2543        "from": False,
    2544        "to": False,
    2545        "step": False,
    2546        "interpolate": False,
    2547    }
    2548
    2549
    2550# hive specific sorts
    2551# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy
    2552class Cluster(Order):
    2553    pass
    2554
    2555
    2556class Distribute(Order):
    2557    pass
    2558
    2559
    2560class Sort(Order):
    2561    pass
    2562
    2563
    2564class Ordered(Expression):
    2565    arg_types = {"this": True, "desc": False, "nulls_first": True, "with_fill": False}
    2566
    2567
    2568class Property(Expression):
    2569    arg_types = {"this": True, "value": True}
    2570
    2571
    2572class AllowedValuesProperty(Expression):
    2573    arg_types = {"expressions": True}
    2574
    2575
    2576class AlgorithmProperty(Property):
    2577    arg_types = {"this": True}
    2578
    2579
    2580class AutoIncrementProperty(Property):
    2581    arg_types = {"this": True}
    2582
    2583
    2584# https://docs.aws.amazon.com/prescriptive-guidance/latest/materialized-views-redshift/refreshing-materialized-views.html
    2585class AutoRefreshProperty(Property):
    2586    arg_types = {"this": True}
    2587
    2588
    2589class BackupProperty(Property):
    2590    arg_types = {"this": True}
    2591
    2592
    2593class BlockCompressionProperty(Property):
    2594    arg_types = {
    2595        "autotemp": False,
    2596        "always": False,
    2597        "default": False,
    2598        "manual": False,
    2599        "never": False,
    2600    }
    2601
    2602
    2603class CharacterSetProperty(Property):
    2604    arg_types = {"this": True, "default": True}
    2605
    2606
    2607class ChecksumProperty(Property):
    2608    arg_types = {"on": False, "default": False}
    2609
    2610
    2611class CollateProperty(Property):
    2612    arg_types = {"this": True, "default": False}
    2613
    2614
    2615class CopyGrantsProperty(Property):
    2616    arg_types = {}
    2617
    2618
    2619class DataBlocksizeProperty(Property):
    2620    arg_types = {
    2621        "size": False,
    2622        "units": False,
    2623        "minimum": False,
    2624        "maximum": False,
    2625        "default": False,
    2626    }
    2627
    2628
    2629class DataDeletionProperty(Property):
    2630    arg_types = {"on": True, "filter_col": False, "retention_period": False}
    2631
    2632
    2633class DefinerProperty(Property):
    2634    arg_types = {"this": True}
    2635
    2636
    2637class DistKeyProperty(Property):
    2638    arg_types = {"this": True}
    2639
    2640
    2641# https://docs.starrocks.io/docs/sql-reference/sql-statements/data-definition/CREATE_TABLE/#distribution_desc
    2642# https://doris.apache.org/docs/sql-manual/sql-statements/Data-Definition-Statements/Create/CREATE-TABLE?_highlight=create&_highlight=table#distribution_desc
    2643class DistributedByProperty(Property):
    2644    arg_types = {"expressions": False, "kind": True, "buckets": False, "order": False}
    2645
    2646
    2647class DistStyleProperty(Property):
    2648    arg_types = {"this": True}
    2649
    2650
    2651class DuplicateKeyProperty(Property):
    2652    arg_types = {"expressions": True}
    2653
    2654
    2655class EngineProperty(Property):
    2656    arg_types = {"this": True}
    2657
    2658
    2659class HeapProperty(Property):
    2660    arg_types = {}
    2661
    2662
    2663class ToTableProperty(Property):
    2664    arg_types = {"this": True}
    2665
    2666
    2667class ExecuteAsProperty(Property):
    2668    arg_types = {"this": True}
    2669
    2670
    2671class ExternalProperty(Property):
    2672    arg_types = {"this": False}
    2673
    2674
    2675class FallbackProperty(Property):
    2676    arg_types = {"no": True, "protection": False}
    2677
    2678
    2679class FileFormatProperty(Property):
    2680    arg_types = {"this": True}
    2681
    2682
    2683class FreespaceProperty(Property):
    2684    arg_types = {"this": True, "percent": False}
    2685
    2686
    2687class GlobalProperty(Property):
    2688    arg_types = {}
    2689
    2690
    2691class IcebergProperty(Property):
    2692    arg_types = {}
    2693
    2694
    2695class InheritsProperty(Property):
    2696    arg_types = {"expressions": True}
    2697
    2698
    2699class InputModelProperty(Property):
    2700    arg_types = {"this": True}
    2701
    2702
    2703class OutputModelProperty(Property):
    2704    arg_types = {"this": True}
    2705
    2706
    2707class IsolatedLoadingProperty(Property):
    2708    arg_types = {"no": False, "concurrent": False, "target": False}
    2709
    2710
    2711class JournalProperty(Property):
    2712    arg_types = {
    2713        "no": False,
    2714        "dual": False,
    2715        "before": False,
    2716        "local": False,
    2717        "after": False,
    2718    }
    2719
    2720
    2721class LanguageProperty(Property):
    2722    arg_types = {"this": True}
    2723
    2724
    2725# spark ddl
    2726class ClusteredByProperty(Property):
    2727    arg_types = {"expressions": True, "sorted_by": False, "buckets": True}
    2728
    2729
    2730class DictProperty(Property):
    2731    arg_types = {"this": True, "kind": True, "settings": False}
    2732
    2733
    2734class DictSubProperty(Property):
    2735    pass
    2736
    2737
    2738class DictRange(Property):
    2739    arg_types = {"this": True, "min": True, "max": True}
    2740
    2741
    2742class DynamicProperty(Property):
    2743    arg_types = {}
    2744
    2745
    2746# Clickhouse CREATE ... ON CLUSTER modifier
    2747# https://clickhouse.com/docs/en/sql-reference/distributed-ddl
    2748class OnCluster(Property):
    2749    arg_types = {"this": True}
    2750
    2751
    2752# Clickhouse EMPTY table "property"
    2753class EmptyProperty(Property):
    2754    arg_types = {}
    2755
    2756
    2757class LikeProperty(Property):
    2758    arg_types = {"this": True, "expressions": False}
    2759
    2760
    2761class LocationProperty(Property):
    2762    arg_types = {"this": True}
    2763
    2764
    2765class LockProperty(Property):
    2766    arg_types = {"this": True}
    2767
    2768
    2769class LockingProperty(Property):
    2770    arg_types = {
    2771        "this": False,
    2772        "kind": True,
    2773        "for_or_in": False,
    2774        "lock_type": True,
    2775        "override": False,
    2776    }
    2777
    2778
    2779class LogProperty(Property):
    2780    arg_types = {"no": True}
    2781
    2782
    2783class MaterializedProperty(Property):
    2784    arg_types = {"this": False}
    2785
    2786
    2787class MergeBlockRatioProperty(Property):
    2788    arg_types = {"this": False, "no": False, "default": False, "percent": False}
    2789
    2790
    2791class NoPrimaryIndexProperty(Property):
    2792    arg_types = {}
    2793
    2794
    2795class OnProperty(Property):
    2796    arg_types = {"this": True}
    2797
    2798
    2799class OnCommitProperty(Property):
    2800    arg_types = {"delete": False}
    2801
    2802
    2803class PartitionedByProperty(Property):
    2804    arg_types = {"this": True}
    2805
    2806
    2807# https://www.postgresql.org/docs/current/sql-createtable.html
    2808class PartitionBoundSpec(Expression):
    2809    # this -> IN / MODULUS, expression -> REMAINDER, from_expressions -> FROM (...), to_expressions -> TO (...)
    2810    arg_types = {
    2811        "this": False,
    2812        "expression": False,
    2813        "from_expressions": False,
    2814        "to_expressions": False,
    2815    }
    2816
    2817
    2818class PartitionedOfProperty(Property):
    2819    # this -> parent_table (schema), expression -> FOR VALUES ... / DEFAULT
    2820    arg_types = {"this": True, "expression": True}
    2821
    2822
    2823class StreamingTableProperty(Property):
    2824    arg_types = {}
    2825
    2826
    2827class RemoteWithConnectionModelProperty(Property):
    2828    arg_types = {"this": True}
    2829
    2830
    2831class ReturnsProperty(Property):
    2832    arg_types = {"this": False, "is_table": False, "table": False, "null": False}
    2833
    2834
    2835class StrictProperty(Property):
    2836    arg_types = {}
    2837
    2838
    2839class RowFormatProperty(Property):
    2840    arg_types = {"this": True}
    2841
    2842
    2843class RowFormatDelimitedProperty(Property):
    2844    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    2845    arg_types = {
    2846        "fields": False,
    2847        "escaped": False,
    2848        "collection_items": False,
    2849        "map_keys": False,
    2850        "lines": False,
    2851        "null": False,
    2852        "serde": False,
    2853    }
    2854
    2855
    2856class RowFormatSerdeProperty(Property):
    2857    arg_types = {"this": True, "serde_properties": False}
    2858
    2859
    2860# https://spark.apache.org/docs/3.1.2/sql-ref-syntax-qry-select-transform.html
    2861class QueryTransform(Expression):
    2862    arg_types = {
    2863        "expressions": True,
    2864        "command_script": True,
    2865        "schema": False,
    2866        "row_format_before": False,
    2867        "record_writer": False,
    2868        "row_format_after": False,
    2869        "record_reader": False,
    2870    }
    2871
    2872
    2873class SampleProperty(Property):
    2874    arg_types = {"this": True}
    2875
    2876
    2877# https://prestodb.io/docs/current/sql/create-view.html#synopsis
    2878class SecurityProperty(Property):
    2879    arg_types = {"this": True}
    2880
    2881
    2882class SchemaCommentProperty(Property):
    2883    arg_types = {"this": True}
    2884
    2885
    2886class SerdeProperties(Property):
    2887    arg_types = {"expressions": True, "with": False}
    2888
    2889
    2890class SetProperty(Property):
    2891    arg_types = {"multi": True}
    2892
    2893
    2894class SharingProperty(Property):
    2895    arg_types = {"this": False}
    2896
    2897
    2898class SetConfigProperty(Property):
    2899    arg_types = {"this": True}
    2900
    2901
    2902class SettingsProperty(Property):
    2903    arg_types = {"expressions": True}
    2904
    2905
    2906class SortKeyProperty(Property):
    2907    arg_types = {"this": True, "compound": False}
    2908
    2909
    2910class SqlReadWriteProperty(Property):
    2911    arg_types = {"this": True}
    2912
    2913
    2914class SqlSecurityProperty(Property):
    2915    arg_types = {"definer": True}
    2916
    2917
    2918class StabilityProperty(Property):
    2919    arg_types = {"this": True}
    2920
    2921
    2922class TemporaryProperty(Property):
    2923    arg_types = {"this": False}
    2924
    2925
    2926class SecureProperty(Property):
    2927    arg_types = {}
    2928
    2929
    2930class TransformModelProperty(Property):
    2931    arg_types = {"expressions": True}
    2932
    2933
    2934class TransientProperty(Property):
    2935    arg_types = {"this": False}
    2936
    2937
    2938class UnloggedProperty(Property):
    2939    arg_types = {}
    2940
    2941
    2942# https://learn.microsoft.com/en-us/sql/t-sql/statements/create-view-transact-sql?view=sql-server-ver16
    2943class ViewAttributeProperty(Property):
    2944    arg_types = {"this": True}
    2945
    2946
    2947class VolatileProperty(Property):
    2948    arg_types = {"this": False}
    2949
    2950
    2951class WithDataProperty(Property):
    2952    arg_types = {"no": True, "statistics": False}
    2953
    2954
    2955class WithJournalTableProperty(Property):
    2956    arg_types = {"this": True}
    2957
    2958
    2959class WithSchemaBindingProperty(Property):
    2960    arg_types = {"this": True}
    2961
    2962
    2963class WithSystemVersioningProperty(Property):
    2964    arg_types = {
    2965        "on": False,
    2966        "this": False,
    2967        "data_consistency": False,
    2968        "retention_period": False,
    2969        "with": True,
    2970    }
    2971
    2972
    2973class Properties(Expression):
    2974    arg_types = {"expressions": True}
    2975
    2976    NAME_TO_PROPERTY = {
    2977        "ALGORITHM": AlgorithmProperty,
    2978        "AUTO_INCREMENT": AutoIncrementProperty,
    2979        "CHARACTER SET": CharacterSetProperty,
    2980        "CLUSTERED_BY": ClusteredByProperty,
    2981        "COLLATE": CollateProperty,
    2982        "COMMENT": SchemaCommentProperty,
    2983        "DEFINER": DefinerProperty,
    2984        "DISTKEY": DistKeyProperty,
    2985        "DISTRIBUTED_BY": DistributedByProperty,
    2986        "DISTSTYLE": DistStyleProperty,
    2987        "ENGINE": EngineProperty,
    2988        "EXECUTE AS": ExecuteAsProperty,
    2989        "FORMAT": FileFormatProperty,
    2990        "LANGUAGE": LanguageProperty,
    2991        "LOCATION": LocationProperty,
    2992        "LOCK": LockProperty,
    2993        "PARTITIONED_BY": PartitionedByProperty,
    2994        "RETURNS": ReturnsProperty,
    2995        "ROW_FORMAT": RowFormatProperty,
    2996        "SORTKEY": SortKeyProperty,
    2997    }
    2998
    2999    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    3000
    3001    # CREATE property locations
    3002    # Form: schema specified
    3003    #   create [POST_CREATE]
    3004    #     table a [POST_NAME]
    3005    #     (b int) [POST_SCHEMA]
    3006    #     with ([POST_WITH])
    3007    #     index (b) [POST_INDEX]
    3008    #
    3009    # Form: alias selection
    3010    #   create [POST_CREATE]
    3011    #     table a [POST_NAME]
    3012    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    3013    #     index (c) [POST_INDEX]
    3014    class Location(AutoName):
    3015        POST_CREATE = auto()
    3016        POST_NAME = auto()
    3017        POST_SCHEMA = auto()
    3018        POST_WITH = auto()
    3019        POST_ALIAS = auto()
    3020        POST_EXPRESSION = auto()
    3021        POST_INDEX = auto()
    3022        UNSUPPORTED = auto()
    3023
    3024    @classmethod
    3025    def from_dict(cls, properties_dict: t.Dict) -> Properties:
    3026        expressions = []
    3027        for key, value in properties_dict.items():
    3028            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    3029            if property_cls:
    3030                expressions.append(property_cls(this=convert(value)))
    3031            else:
    3032                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    3033
    3034        return cls(expressions=expressions)
    3035
    3036
    3037class Qualify(Expression):
    3038    pass
    3039
    3040
    3041class InputOutputFormat(Expression):
    3042    arg_types = {"input_format": False, "output_format": False}
    3043
    3044
    3045# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql
    3046class Return(Expression):
    3047    pass
    3048
    3049
    3050class Reference(Expression):
    3051    arg_types = {"this": True, "expressions": False, "options": False}
    3052
    3053
    3054class Tuple(Expression):
    3055    arg_types = {"expressions": False}
    3056
    3057    def isin(
    3058        self,
    3059        *expressions: t.Any,
    3060        query: t.Optional[ExpOrStr] = None,
    3061        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
    3062        copy: bool = True,
    3063        **opts,
    3064    ) -> In:
    3065        return In(
    3066            this=maybe_copy(self, copy),
    3067            expressions=[convert(e, copy=copy) for e in expressions],
    3068            query=maybe_parse(query, copy=copy, **opts) if query else None,
    3069            unnest=(
    3070                Unnest(
    3071                    expressions=[
    3072                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
    3073                        for e in ensure_list(unnest)
    3074                    ]
    3075                )
    3076                if unnest
    3077                else None
    3078            ),
    3079        )
    3080
    3081
    3082QUERY_MODIFIERS = {
    3083    "match": False,
    3084    "laterals": False,
    3085    "joins": False,
    3086    "connect": False,
    3087    "pivots": False,
    3088    "prewhere": False,
    3089    "where": False,
    3090    "group": False,
    3091    "having": False,
    3092    "qualify": False,
    3093    "windows": False,
    3094    "distribute": False,
    3095    "sort": False,
    3096    "cluster": False,
    3097    "order": False,
    3098    "limit": False,
    3099    "offset": False,
    3100    "locks": False,
    3101    "sample": False,
    3102    "settings": False,
    3103    "format": False,
    3104    "options": False,
    3105}
    3106
    3107
    3108# https://learn.microsoft.com/en-us/sql/t-sql/queries/option-clause-transact-sql?view=sql-server-ver16
    3109# https://learn.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-query?view=sql-server-ver16
    3110class QueryOption(Expression):
    3111    arg_types = {"this": True, "expression": False}
    3112
    3113
    3114# https://learn.microsoft.com/en-us/sql/t-sql/queries/hints-transact-sql-table?view=sql-server-ver16
    3115class WithTableHint(Expression):
    3116    arg_types = {"expressions": True}
    3117
    3118
    3119# https://dev.mysql.com/doc/refman/8.0/en/index-hints.html
    3120class IndexTableHint(Expression):
    3121    arg_types = {"this": True, "expressions": False, "target": False}
    3122
    3123
    3124# https://docs.snowflake.com/en/sql-reference/constructs/at-before
    3125class HistoricalData(Expression):
    3126    arg_types = {"this": True, "kind": True, "expression": True}
    3127
    3128
    3129class Table(Expression):
    3130    arg_types = {
    3131        "this": False,
    3132        "alias": False,
    3133        "db": False,
    3134        "catalog": False,
    3135        "laterals": False,
    3136        "joins": False,
    3137        "pivots": False,
    3138        "hints": False,
    3139        "system_time": False,
    3140        "version": False,
    3141        "format": False,
    3142        "pattern": False,
    3143        "ordinality": False,
    3144        "when": False,
    3145        "only": False,
    3146        "partition": False,
    3147        "changes": False,
    3148        "rows_from": False,
    3149        "sample": False,
    3150    }
    3151
    3152    @property
    3153    def name(self) -> str:
    3154        if isinstance(self.this, Func):
    3155            return ""
    3156        return self.this.name
    3157
    3158    @property
    3159    def db(self) -> str:
    3160        return self.text("db")
    3161
    3162    @property
    3163    def catalog(self) -> str:
    3164        return self.text("catalog")
    3165
    3166    @property
    3167    def selects(self) -> t.List[Expression]:
    3168        return []
    3169
    3170    @property
    3171    def named_selects(self) -> t.List[str]:
    3172        return []
    3173
    3174    @property
    3175    def parts(self) -> t.List[Expression]:
    3176        """Return the parts of a table in order catalog, db, table."""
    3177        parts: t.List[Expression] = []
    3178
    3179        for arg in ("catalog", "db", "this"):
    3180            part = self.args.get(arg)
    3181
    3182            if isinstance(part, Dot):
    3183                parts.extend(part.flatten())
    3184            elif isinstance(part, Expression):
    3185                parts.append(part)
    3186
    3187        return parts
    3188
    3189    def to_column(self, copy: bool = True) -> Alias | Column | Dot:
    3190        parts = self.parts
    3191        col = column(*reversed(parts[0:4]), fields=parts[4:], copy=copy)  # type: ignore
    3192        alias = self.args.get("alias")
    3193        if alias:
    3194            col = alias_(col, alias.this, copy=copy)
    3195        return col
    3196
    3197
    3198class SetOperation(Query):
    3199    arg_types = {
    3200        "with": False,
    3201        "this": True,
    3202        "expression": True,
    3203        "distinct": False,
    3204        "by_name": False,
    3205        **QUERY_MODIFIERS,
    3206    }
    3207
    3208    def select(
    3209        self: S,
    3210        *expressions: t.Optional[ExpOrStr],
    3211        append: bool = True,
    3212        dialect: DialectType = None,
    3213        copy: bool = True,
    3214        **opts,
    3215    ) -> S:
    3216        this = maybe_copy(self, copy)
    3217        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3218        this.expression.unnest().select(
    3219            *expressions, append=append, dialect=dialect, copy=False, **opts
    3220        )
    3221        return this
    3222
    3223    @property
    3224    def named_selects(self) -> t.List[str]:
    3225        return self.this.unnest().named_selects
    3226
    3227    @property
    3228    def is_star(self) -> bool:
    3229        return self.this.is_star or self.expression.is_star
    3230
    3231    @property
    3232    def selects(self) -> t.List[Expression]:
    3233        return self.this.unnest().selects
    3234
    3235    @property
    3236    def left(self) -> Query:
    3237        return self.this
    3238
    3239    @property
    3240    def right(self) -> Query:
    3241        return self.expression
    3242
    3243
    3244class Union(SetOperation):
    3245    pass
    3246
    3247
    3248class Except(SetOperation):
    3249    pass
    3250
    3251
    3252class Intersect(SetOperation):
    3253    pass
    3254
    3255
    3256class Update(Expression):
    3257    arg_types = {
    3258        "with": False,
    3259        "this": False,
    3260        "expressions": True,
    3261        "from": False,
    3262        "where": False,
    3263        "returning": False,
    3264        "order": False,
    3265        "limit": False,
    3266    }
    3267
    3268
    3269class Values(UDTF):
    3270    arg_types = {"expressions": True, "alias": False}
    3271
    3272
    3273class Var(Expression):
    3274    pass
    3275
    3276
    3277class Version(Expression):
    3278    """
    3279    Time travel, iceberg, bigquery etc
    3280    https://trino.io/docs/current/connector/iceberg.html?highlight=snapshot#using-snapshots
    3281    https://www.databricks.com/blog/2019/02/04/introducing-delta-time-travel-for-large-scale-data-lakes.html
    3282    https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#for_system_time_as_of
    3283    https://learn.microsoft.com/en-us/sql/relational-databases/tables/querying-data-in-a-system-versioned-temporal-table?view=sql-server-ver16
    3284    this is either TIMESTAMP or VERSION
    3285    kind is ("AS OF", "BETWEEN")
    3286    """
    3287
    3288    arg_types = {"this": True, "kind": True, "expression": False}
    3289
    3290
    3291class Schema(Expression):
    3292    arg_types = {"this": False, "expressions": False}
    3293
    3294
    3295# https://dev.mysql.com/doc/refman/8.0/en/select.html
    3296# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/SELECT.html
    3297class Lock(Expression):
    3298    arg_types = {"update": True, "expressions": False, "wait": False}
    3299
    3300
    3301class Select(Query):
    3302    arg_types = {
    3303        "with": False,
    3304        "kind": False,
    3305        "expressions": False,
    3306        "hint": False,
    3307        "distinct": False,
    3308        "into": False,
    3309        "from": False,
    3310        **QUERY_MODIFIERS,
    3311    }
    3312
    3313    def from_(
    3314        self, expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts
    3315    ) -> Select:
    3316        """
    3317        Set the FROM expression.
    3318
    3319        Example:
    3320            >>> Select().from_("tbl").select("x").sql()
    3321            'SELECT x FROM tbl'
    3322
    3323        Args:
    3324            expression : the SQL code strings to parse.
    3325                If a `From` instance is passed, this is used as-is.
    3326                If another `Expression` instance is passed, it will be wrapped in a `From`.
    3327            dialect: the dialect used to parse the input expression.
    3328            copy: if `False`, modify this expression instance in-place.
    3329            opts: other options to use to parse the input expressions.
    3330
    3331        Returns:
    3332            The modified Select expression.
    3333        """
    3334        return _apply_builder(
    3335            expression=expression,
    3336            instance=self,
    3337            arg="from",
    3338            into=From,
    3339            prefix="FROM",
    3340            dialect=dialect,
    3341            copy=copy,
    3342            **opts,
    3343        )
    3344
    3345    def group_by(
    3346        self,
    3347        *expressions: t.Optional[ExpOrStr],
    3348        append: bool = True,
    3349        dialect: DialectType = None,
    3350        copy: bool = True,
    3351        **opts,
    3352    ) -> Select:
    3353        """
    3354        Set the GROUP BY expression.
    3355
    3356        Example:
    3357            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    3358            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    3359
    3360        Args:
    3361            *expressions: the SQL code strings to parse.
    3362                If a `Group` instance is passed, this is used as-is.
    3363                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    3364                If nothing is passed in then a group by is not applied to the expression
    3365            append: if `True`, add to any existing expressions.
    3366                Otherwise, this flattens all the `Group` expression into a single expression.
    3367            dialect: the dialect used to parse the input expression.
    3368            copy: if `False`, modify this expression instance in-place.
    3369            opts: other options to use to parse the input expressions.
    3370
    3371        Returns:
    3372            The modified Select expression.
    3373        """
    3374        if not expressions:
    3375            return self if not copy else self.copy()
    3376
    3377        return _apply_child_list_builder(
    3378            *expressions,
    3379            instance=self,
    3380            arg="group",
    3381            append=append,
    3382            copy=copy,
    3383            prefix="GROUP BY",
    3384            into=Group,
    3385            dialect=dialect,
    3386            **opts,
    3387        )
    3388
    3389    def sort_by(
    3390        self,
    3391        *expressions: t.Optional[ExpOrStr],
    3392        append: bool = True,
    3393        dialect: DialectType = None,
    3394        copy: bool = True,
    3395        **opts,
    3396    ) -> Select:
    3397        """
    3398        Set the SORT BY expression.
    3399
    3400        Example:
    3401            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql(dialect="hive")
    3402            'SELECT x FROM tbl SORT BY x DESC'
    3403
    3404        Args:
    3405            *expressions: the SQL code strings to parse.
    3406                If a `Group` instance is passed, this is used as-is.
    3407                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    3408            append: if `True`, add to any existing expressions.
    3409                Otherwise, this flattens all the `Order` expression into a single expression.
    3410            dialect: the dialect used to parse the input expression.
    3411            copy: if `False`, modify this expression instance in-place.
    3412            opts: other options to use to parse the input expressions.
    3413
    3414        Returns:
    3415            The modified Select expression.
    3416        """
    3417        return _apply_child_list_builder(
    3418            *expressions,
    3419            instance=self,
    3420            arg="sort",
    3421            append=append,
    3422            copy=copy,
    3423            prefix="SORT BY",
    3424            into=Sort,
    3425            dialect=dialect,
    3426            **opts,
    3427        )
    3428
    3429    def cluster_by(
    3430        self,
    3431        *expressions: t.Optional[ExpOrStr],
    3432        append: bool = True,
    3433        dialect: DialectType = None,
    3434        copy: bool = True,
    3435        **opts,
    3436    ) -> Select:
    3437        """
    3438        Set the CLUSTER BY expression.
    3439
    3440        Example:
    3441            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql(dialect="hive")
    3442            'SELECT x FROM tbl CLUSTER BY x DESC'
    3443
    3444        Args:
    3445            *expressions: the SQL code strings to parse.
    3446                If a `Group` instance is passed, this is used as-is.
    3447                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    3448            append: if `True`, add to any existing expressions.
    3449                Otherwise, this flattens all the `Order` expression into a single expression.
    3450            dialect: the dialect used to parse the input expression.
    3451            copy: if `False`, modify this expression instance in-place.
    3452            opts: other options to use to parse the input expressions.
    3453
    3454        Returns:
    3455            The modified Select expression.
    3456        """
    3457        return _apply_child_list_builder(
    3458            *expressions,
    3459            instance=self,
    3460            arg="cluster",
    3461            append=append,
    3462            copy=copy,
    3463            prefix="CLUSTER BY",
    3464            into=Cluster,
    3465            dialect=dialect,
    3466            **opts,
    3467        )
    3468
    3469    def select(
    3470        self,
    3471        *expressions: t.Optional[ExpOrStr],
    3472        append: bool = True,
    3473        dialect: DialectType = None,
    3474        copy: bool = True,
    3475        **opts,
    3476    ) -> Select:
    3477        return _apply_list_builder(
    3478            *expressions,
    3479            instance=self,
    3480            arg="expressions",
    3481            append=append,
    3482            dialect=dialect,
    3483            into=Expression,
    3484            copy=copy,
    3485            **opts,
    3486        )
    3487
    3488    def lateral(
    3489        self,
    3490        *expressions: t.Optional[ExpOrStr],
    3491        append: bool = True,
    3492        dialect: DialectType = None,
    3493        copy: bool = True,
    3494        **opts,
    3495    ) -> Select:
    3496        """
    3497        Append to or set the LATERAL expressions.
    3498
    3499        Example:
    3500            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    3501            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    3502
    3503        Args:
    3504            *expressions: the SQL code strings to parse.
    3505                If an `Expression` instance is passed, it will be used as-is.
    3506            append: if `True`, add to any existing expressions.
    3507                Otherwise, this resets the expressions.
    3508            dialect: the dialect used to parse the input expressions.
    3509            copy: if `False`, modify this expression instance in-place.
    3510            opts: other options to use to parse the input expressions.
    3511
    3512        Returns:
    3513            The modified Select expression.
    3514        """
    3515        return _apply_list_builder(
    3516            *expressions,
    3517            instance=self,
    3518            arg="laterals",
    3519            append=append,
    3520            into=Lateral,
    3521            prefix="LATERAL VIEW",
    3522            dialect=dialect,
    3523            copy=copy,
    3524            **opts,
    3525        )
    3526
    3527    def join(
    3528        self,
    3529        expression: ExpOrStr,
    3530        on: t.Optional[ExpOrStr] = None,
    3531        using: t.Optional[ExpOrStr | t.Collection[ExpOrStr]] = None,
    3532        append: bool = True,
    3533        join_type: t.Optional[str] = None,
    3534        join_alias: t.Optional[Identifier | str] = None,
    3535        dialect: DialectType = None,
    3536        copy: bool = True,
    3537        **opts,
    3538    ) -> Select:
    3539        """
    3540        Append to or set the JOIN expressions.
    3541
    3542        Example:
    3543            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    3544            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    3545
    3546            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    3547            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    3548
    3549            Use `join_type` to change the type of join:
    3550
    3551            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    3552            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    3553
    3554        Args:
    3555            expression: the SQL code string to parse.
    3556                If an `Expression` instance is passed, it will be used as-is.
    3557            on: optionally specify the join "on" criteria as a SQL string.
    3558                If an `Expression` instance is passed, it will be used as-is.
    3559            using: optionally specify the join "using" criteria as a SQL string.
    3560                If an `Expression` instance is passed, it will be used as-is.
    3561            append: if `True`, add to any existing expressions.
    3562                Otherwise, this resets the expressions.
    3563            join_type: if set, alter the parsed join type.
    3564            join_alias: an optional alias for the joined source.
    3565            dialect: the dialect used to parse the input expressions.
    3566            copy: if `False`, modify this expression instance in-place.
    3567            opts: other options to use to parse the input expressions.
    3568
    3569        Returns:
    3570            Select: the modified expression.
    3571        """
    3572        parse_args: t.Dict[str, t.Any] = {"dialect": dialect, **opts}
    3573
    3574        try:
    3575            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    3576        except ParseError:
    3577            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    3578
    3579        join = expression if isinstance(expression, Join) else Join(this=expression)
    3580
    3581        if isinstance(join.this, Select):
    3582            join.this.replace(join.this.subquery())
    3583
    3584        if join_type:
    3585            method: t.Optional[Token]
    3586            side: t.Optional[Token]
    3587            kind: t.Optional[Token]
    3588
    3589            method, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    3590
    3591            if method:
    3592                join.set("method", method.text)
    3593            if side:
    3594                join.set("side", side.text)
    3595            if kind:
    3596                join.set("kind", kind.text)
    3597
    3598        if on:
    3599            on = and_(*ensure_list(on), dialect=dialect, copy=copy, **opts)
    3600            join.set("on", on)
    3601
    3602        if using:
    3603            join = _apply_list_builder(
    3604                *ensure_list(using),
    3605                instance=join,
    3606                arg="using",
    3607                append=append,
    3608                copy=copy,
    3609                into=Identifier,
    3610                **opts,
    3611            )
    3612
    3613        if join_alias:
    3614            join.set("this", alias_(join.this, join_alias, table=True))
    3615
    3616        return _apply_list_builder(
    3617            join,
    3618            instance=self,
    3619            arg="joins",
    3620            append=append,
    3621            copy=copy,
    3622            **opts,
    3623        )
    3624
    3625    def where(
    3626        self,
    3627        *expressions: t.Optional[ExpOrStr],
    3628        append: bool = True,
    3629        dialect: DialectType = None,
    3630        copy: bool = True,
    3631        **opts,
    3632    ) -> Select:
    3633        """
    3634        Append to or set the WHERE expressions.
    3635
    3636        Example:
    3637            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    3638            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    3639
    3640        Args:
    3641            *expressions: the SQL code strings to parse.
    3642                If an `Expression` instance is passed, it will be used as-is.
    3643                Multiple expressions are combined with an AND operator.
    3644            append: if `True`, AND the new expressions to any existing expression.
    3645                Otherwise, this resets the expression.
    3646            dialect: the dialect used to parse the input expressions.
    3647            copy: if `False`, modify this expression instance in-place.
    3648            opts: other options to use to parse the input expressions.
    3649
    3650        Returns:
    3651            Select: the modified expression.
    3652        """
    3653        return _apply_conjunction_builder(
    3654            *expressions,
    3655            instance=self,
    3656            arg="where",
    3657            append=append,
    3658            into=Where,
    3659            dialect=dialect,
    3660            copy=copy,
    3661            **opts,
    3662        )
    3663
    3664    def having(
    3665        self,
    3666        *expressions: t.Optional[ExpOrStr],
    3667        append: bool = True,
    3668        dialect: DialectType = None,
    3669        copy: bool = True,
    3670        **opts,
    3671    ) -> Select:
    3672        """
    3673        Append to or set the HAVING expressions.
    3674
    3675        Example:
    3676            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    3677            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    3678
    3679        Args:
    3680            *expressions: the SQL code strings to parse.
    3681                If an `Expression` instance is passed, it will be used as-is.
    3682                Multiple expressions are combined with an AND operator.
    3683            append: if `True`, AND the new expressions to any existing expression.
    3684                Otherwise, this resets the expression.
    3685            dialect: the dialect used to parse the input expressions.
    3686            copy: if `False`, modify this expression instance in-place.
    3687            opts: other options to use to parse the input expressions.
    3688
    3689        Returns:
    3690            The modified Select expression.
    3691        """
    3692        return _apply_conjunction_builder(
    3693            *expressions,
    3694            instance=self,
    3695            arg="having",
    3696            append=append,
    3697            into=Having,
    3698            dialect=dialect,
    3699            copy=copy,
    3700            **opts,
    3701        )
    3702
    3703    def window(
    3704        self,
    3705        *expressions: t.Optional[ExpOrStr],
    3706        append: bool = True,
    3707        dialect: DialectType = None,
    3708        copy: bool = True,
    3709        **opts,
    3710    ) -> Select:
    3711        return _apply_list_builder(
    3712            *expressions,
    3713            instance=self,
    3714            arg="windows",
    3715            append=append,
    3716            into=Window,
    3717            dialect=dialect,
    3718            copy=copy,
    3719            **opts,
    3720        )
    3721
    3722    def qualify(
    3723        self,
    3724        *expressions: t.Optional[ExpOrStr],
    3725        append: bool = True,
    3726        dialect: DialectType = None,
    3727        copy: bool = True,
    3728        **opts,
    3729    ) -> Select:
    3730        return _apply_conjunction_builder(
    3731            *expressions,
    3732            instance=self,
    3733            arg="qualify",
    3734            append=append,
    3735            into=Qualify,
    3736            dialect=dialect,
    3737            copy=copy,
    3738            **opts,
    3739        )
    3740
    3741    def distinct(
    3742        self, *ons: t.Optional[ExpOrStr], distinct: bool = True, copy: bool = True
    3743    ) -> Select:
    3744        """
    3745        Set the OFFSET expression.
    3746
    3747        Example:
    3748            >>> Select().from_("tbl").select("x").distinct().sql()
    3749            'SELECT DISTINCT x FROM tbl'
    3750
    3751        Args:
    3752            ons: the expressions to distinct on
    3753            distinct: whether the Select should be distinct
    3754            copy: if `False`, modify this expression instance in-place.
    3755
    3756        Returns:
    3757            Select: the modified expression.
    3758        """
    3759        instance = maybe_copy(self, copy)
    3760        on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons if on]) if ons else None
    3761        instance.set("distinct", Distinct(on=on) if distinct else None)
    3762        return instance
    3763
    3764    def ctas(
    3765        self,
    3766        table: ExpOrStr,
    3767        properties: t.Optional[t.Dict] = None,
    3768        dialect: DialectType = None,
    3769        copy: bool = True,
    3770        **opts,
    3771    ) -> Create:
    3772        """
    3773        Convert this expression to a CREATE TABLE AS statement.
    3774
    3775        Example:
    3776            >>> Select().select("*").from_("tbl").ctas("x").sql()
    3777            'CREATE TABLE x AS SELECT * FROM tbl'
    3778
    3779        Args:
    3780            table: the SQL code string to parse as the table name.
    3781                If another `Expression` instance is passed, it will be used as-is.
    3782            properties: an optional mapping of table properties
    3783            dialect: the dialect used to parse the input table.
    3784            copy: if `False`, modify this expression instance in-place.
    3785            opts: other options to use to parse the input table.
    3786
    3787        Returns:
    3788            The new Create expression.
    3789        """
    3790        instance = maybe_copy(self, copy)
    3791        table_expression = maybe_parse(table, into=Table, dialect=dialect, **opts)
    3792
    3793        properties_expression = None
    3794        if properties:
    3795            properties_expression = Properties.from_dict(properties)
    3796
    3797        return Create(
    3798            this=table_expression,
    3799            kind="TABLE",
    3800            expression=instance,
    3801            properties=properties_expression,
    3802        )
    3803
    3804    def lock(self, update: bool = True, copy: bool = True) -> Select:
    3805        """
    3806        Set the locking read mode for this expression.
    3807
    3808        Examples:
    3809            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    3810            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    3811
    3812            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    3813            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    3814
    3815        Args:
    3816            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    3817            copy: if `False`, modify this expression instance in-place.
    3818
    3819        Returns:
    3820            The modified expression.
    3821        """
    3822        inst = maybe_copy(self, copy)
    3823        inst.set("locks", [Lock(update=update)])
    3824
    3825        return inst
    3826
    3827    def hint(self, *hints: ExpOrStr, dialect: DialectType = None, copy: bool = True) -> Select:
    3828        """
    3829        Set hints for this expression.
    3830
    3831        Examples:
    3832            >>> Select().select("x").from_("tbl").hint("BROADCAST(y)").sql(dialect="spark")
    3833            'SELECT /*+ BROADCAST(y) */ x FROM tbl'
    3834
    3835        Args:
    3836            hints: The SQL code strings to parse as the hints.
    3837                If an `Expression` instance is passed, it will be used as-is.
    3838            dialect: The dialect used to parse the hints.
    3839            copy: If `False`, modify this expression instance in-place.
    3840
    3841        Returns:
    3842            The modified expression.
    3843        """
    3844        inst = maybe_copy(self, copy)
    3845        inst.set(
    3846            "hint", Hint(expressions=[maybe_parse(h, copy=copy, dialect=dialect) for h in hints])
    3847        )
    3848
    3849        return inst
    3850
    3851    @property
    3852    def named_selects(self) -> t.List[str]:
    3853        return [e.output_name for e in self.expressions if e.alias_or_name]
    3854
    3855    @property
    3856    def is_star(self) -> bool:
    3857        return any(expression.is_star for expression in self.expressions)
    3858
    3859    @property
    3860    def selects(self) -> t.List[Expression]:
    3861        return self.expressions
    3862
    3863
    3864UNWRAPPED_QUERIES = (Select, SetOperation)
    3865
    3866
    3867class Subquery(DerivedTable, Query):
    3868    arg_types = {
    3869        "this": True,
    3870        "alias": False,
    3871        "with": False,
    3872        **QUERY_MODIFIERS,
    3873    }
    3874
    3875    def unnest(self):
    3876        """Returns the first non subquery."""
    3877        expression = self
    3878        while isinstance(expression, Subquery):
    3879            expression = expression.this
    3880        return expression
    3881
    3882    def unwrap(self) -> Subquery:
    3883        expression = self
    3884        while expression.same_parent and expression.is_wrapper:
    3885            expression = t.cast(Subquery, expression.parent)
    3886        return expression
    3887
    3888    def select(
    3889        self,
    3890        *expressions: t.Optional[ExpOrStr],
    3891        append: bool = True,
    3892        dialect: DialectType = None,
    3893        copy: bool = True,
    3894        **opts,
    3895    ) -> Subquery:
    3896        this = maybe_copy(self, copy)
    3897        this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3898        return this
    3899
    3900    @property
    3901    def is_wrapper(self) -> bool:
    3902        """
    3903        Whether this Subquery acts as a simple wrapper around another expression.
    3904
    3905        SELECT * FROM (((SELECT * FROM t)))
    3906                      ^
    3907                      This corresponds to a "wrapper" Subquery node
    3908        """
    3909        return all(v is None for k, v in self.args.items() if k != "this")
    3910
    3911    @property
    3912    def is_star(self) -> bool:
    3913        return self.this.is_star
    3914
    3915    @property
    3916    def output_name(self) -> str:
    3917        return self.alias
    3918
    3919
    3920class TableSample(Expression):
    3921    arg_types = {
    3922        "expressions": False,
    3923        "method": False,
    3924        "bucket_numerator": False,
    3925        "bucket_denominator": False,
    3926        "bucket_field": False,
    3927        "percent": False,
    3928        "rows": False,
    3929        "size": False,
    3930        "seed": False,
    3931    }
    3932
    3933
    3934class Tag(Expression):
    3935    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    3936
    3937    arg_types = {
    3938        "this": False,
    3939        "prefix": False,
    3940        "postfix": False,
    3941    }
    3942
    3943
    3944# Represents both the standard SQL PIVOT operator and DuckDB's "simplified" PIVOT syntax
    3945# https://duckdb.org/docs/sql/statements/pivot
    3946class Pivot(Expression):
    3947    arg_types = {
    3948        "this": False,
    3949        "alias": False,
    3950        "expressions": False,
    3951        "field": False,
    3952        "unpivot": False,
    3953        "using": False,
    3954        "group": False,
    3955        "columns": False,
    3956        "include_nulls": False,
    3957        "default_on_null": False,
    3958    }
    3959
    3960    @property
    3961    def unpivot(self) -> bool:
    3962        return bool(self.args.get("unpivot"))
    3963
    3964
    3965class Window(Condition):
    3966    arg_types = {
    3967        "this": True,
    3968        "partition_by": False,
    3969        "order": False,
    3970        "spec": False,
    3971        "alias": False,
    3972        "over": False,
    3973        "first": False,
    3974    }
    3975
    3976
    3977class WindowSpec(Expression):
    3978    arg_types = {
    3979        "kind": False,
    3980        "start": False,
    3981        "start_side": False,
    3982        "end": False,
    3983        "end_side": False,
    3984    }
    3985
    3986
    3987class PreWhere(Expression):
    3988    pass
    3989
    3990
    3991class Where(Expression):
    3992    pass
    3993
    3994
    3995class Star(Expression):
    3996    arg_types = {"except": False, "replace": False, "rename": False}
    3997
    3998    @property
    3999    def name(self) -> str:
    4000        return "*"
    4001
    4002    @property
    4003    def output_name(self) -> str:
    4004        return self.name
    4005
    4006
    4007class Parameter(Condition):
    4008    arg_types = {"this": True, "expression": False}
    4009
    4010
    4011class SessionParameter(Condition):
    4012    arg_types = {"this": True, "kind": False}
    4013
    4014
    4015class Placeholder(Condition):
    4016    arg_types = {"this": False, "kind": False}
    4017
    4018    @property
    4019    def name(self) -> str:
    4020        return self.this or "?"
    4021
    4022
    4023class Null(Condition):
    4024    arg_types: t.Dict[str, t.Any] = {}
    4025
    4026    @property
    4027    def name(self) -> str:
    4028        return "NULL"
    4029
    4030    def to_py(self) -> Lit[None]:
    4031        return None
    4032
    4033
    4034class Boolean(Condition):
    4035    def to_py(self) -> bool:
    4036        return self.this
    4037
    4038
    4039class DataTypeParam(Expression):
    4040    arg_types = {"this": True, "expression": False}
    4041
    4042    @property
    4043    def name(self) -> str:
    4044        return self.this.name
    4045
    4046
    4047# The `nullable` arg is helpful when transpiling types from other dialects to ClickHouse, which
    4048# assumes non-nullable types by default. Values `None` and `True` mean the type is nullable.
    4049class DataType(Expression):
    4050    arg_types = {
    4051        "this": True,
    4052        "expressions": False,
    4053        "nested": False,
    4054        "values": False,
    4055        "prefix": False,
    4056        "kind": False,
    4057        "nullable": False,
    4058    }
    4059
    4060    class Type(AutoName):
    4061        ARRAY = auto()
    4062        AGGREGATEFUNCTION = auto()
    4063        SIMPLEAGGREGATEFUNCTION = auto()
    4064        BIGDECIMAL = auto()
    4065        BIGINT = auto()
    4066        BIGSERIAL = auto()
    4067        BINARY = auto()
    4068        BIT = auto()
    4069        BOOLEAN = auto()
    4070        BPCHAR = auto()
    4071        CHAR = auto()
    4072        DATE = auto()
    4073        DATE32 = auto()
    4074        DATEMULTIRANGE = auto()
    4075        DATERANGE = auto()
    4076        DATETIME = auto()
    4077        DATETIME64 = auto()
    4078        DECIMAL = auto()
    4079        DECIMAL32 = auto()
    4080        DECIMAL64 = auto()
    4081        DECIMAL128 = auto()
    4082        DOUBLE = auto()
    4083        ENUM = auto()
    4084        ENUM8 = auto()
    4085        ENUM16 = auto()
    4086        FIXEDSTRING = auto()
    4087        FLOAT = auto()
    4088        GEOGRAPHY = auto()
    4089        GEOMETRY = auto()
    4090        HLLSKETCH = auto()
    4091        HSTORE = auto()
    4092        IMAGE = auto()
    4093        INET = auto()
    4094        INT = auto()
    4095        INT128 = auto()
    4096        INT256 = auto()
    4097        INT4MULTIRANGE = auto()
    4098        INT4RANGE = auto()
    4099        INT8MULTIRANGE = auto()
    4100        INT8RANGE = auto()
    4101        INTERVAL = auto()
    4102        IPADDRESS = auto()
    4103        IPPREFIX = auto()
    4104        IPV4 = auto()
    4105        IPV6 = auto()
    4106        JSON = auto()
    4107        JSONB = auto()
    4108        LIST = auto()
    4109        LONGBLOB = auto()
    4110        LONGTEXT = auto()
    4111        LOWCARDINALITY = auto()
    4112        MAP = auto()
    4113        MEDIUMBLOB = auto()
    4114        MEDIUMINT = auto()
    4115        MEDIUMTEXT = auto()
    4116        MONEY = auto()
    4117        NAME = auto()
    4118        NCHAR = auto()
    4119        NESTED = auto()
    4120        NULL = auto()
    4121        NULLABLE = auto()
    4122        NUMMULTIRANGE = auto()
    4123        NUMRANGE = auto()
    4124        NVARCHAR = auto()
    4125        OBJECT = auto()
    4126        ROWVERSION = auto()
    4127        SERIAL = auto()
    4128        SET = auto()
    4129        SMALLINT = auto()
    4130        SMALLMONEY = auto()
    4131        SMALLSERIAL = auto()
    4132        STRUCT = auto()
    4133        SUPER = auto()
    4134        TEXT = auto()
    4135        TINYBLOB = auto()
    4136        TINYTEXT = auto()
    4137        TIME = auto()
    4138        TIMETZ = auto()
    4139        TIMESTAMP = auto()
    4140        TIMESTAMPNTZ = auto()
    4141        TIMESTAMPLTZ = auto()
    4142        TIMESTAMPTZ = auto()
    4143        TIMESTAMP_S = auto()
    4144        TIMESTAMP_MS = auto()
    4145        TIMESTAMP_NS = auto()
    4146        TINYINT = auto()
    4147        TSMULTIRANGE = auto()
    4148        TSRANGE = auto()
    4149        TSTZMULTIRANGE = auto()
    4150        TSTZRANGE = auto()
    4151        UBIGINT = auto()
    4152        UINT = auto()
    4153        UINT128 = auto()
    4154        UINT256 = auto()
    4155        UMEDIUMINT = auto()
    4156        UDECIMAL = auto()
    4157        UNIQUEIDENTIFIER = auto()
    4158        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    4159        USERDEFINED = "USER-DEFINED"
    4160        USMALLINT = auto()
    4161        UTINYINT = auto()
    4162        UUID = auto()
    4163        VARBINARY = auto()
    4164        VARCHAR = auto()
    4165        VARIANT = auto()
    4166        VECTOR = auto()
    4167        XML = auto()
    4168        YEAR = auto()
    4169        TDIGEST = auto()
    4170
    4171    STRUCT_TYPES = {
    4172        Type.NESTED,
    4173        Type.OBJECT,
    4174        Type.STRUCT,
    4175    }
    4176
    4177    NESTED_TYPES = {
    4178        *STRUCT_TYPES,
    4179        Type.ARRAY,
    4180        Type.MAP,
    4181    }
    4182
    4183    TEXT_TYPES = {
    4184        Type.CHAR,
    4185        Type.NCHAR,
    4186        Type.NVARCHAR,
    4187        Type.TEXT,
    4188        Type.VARCHAR,
    4189        Type.NAME,
    4190    }
    4191
    4192    SIGNED_INTEGER_TYPES = {
    4193        Type.BIGINT,
    4194        Type.INT,
    4195        Type.INT128,
    4196        Type.INT256,
    4197        Type.MEDIUMINT,
    4198        Type.SMALLINT,
    4199        Type.TINYINT,
    4200    }
    4201
    4202    UNSIGNED_INTEGER_TYPES = {
    4203        Type.UBIGINT,
    4204        Type.UINT,
    4205        Type.UINT128,
    4206        Type.UINT256,
    4207        Type.UMEDIUMINT,
    4208        Type.USMALLINT,
    4209        Type.UTINYINT,
    4210    }
    4211
    4212    INTEGER_TYPES = {
    4213        *SIGNED_INTEGER_TYPES,
    4214        *UNSIGNED_INTEGER_TYPES,
    4215        Type.BIT,
    4216    }
    4217
    4218    FLOAT_TYPES = {
    4219        Type.DOUBLE,
    4220        Type.FLOAT,
    4221    }
    4222
    4223    REAL_TYPES = {
    4224        *FLOAT_TYPES,
    4225        Type.BIGDECIMAL,
    4226        Type.DECIMAL,
    4227        Type.DECIMAL32,
    4228        Type.DECIMAL64,
    4229        Type.DECIMAL128,
    4230        Type.MONEY,
    4231        Type.SMALLMONEY,
    4232        Type.UDECIMAL,
    4233    }
    4234
    4235    NUMERIC_TYPES = {
    4236        *INTEGER_TYPES,
    4237        *REAL_TYPES,
    4238    }
    4239
    4240    TEMPORAL_TYPES = {
    4241        Type.DATE,
    4242        Type.DATE32,
    4243        Type.DATETIME,
    4244        Type.DATETIME64,
    4245        Type.TIME,
    4246        Type.TIMESTAMP,
    4247        Type.TIMESTAMPNTZ,
    4248        Type.TIMESTAMPLTZ,
    4249        Type.TIMESTAMPTZ,
    4250        Type.TIMESTAMP_MS,
    4251        Type.TIMESTAMP_NS,
    4252        Type.TIMESTAMP_S,
    4253        Type.TIMETZ,
    4254    }
    4255
    4256    @classmethod
    4257    def build(
    4258        cls,
    4259        dtype: DATA_TYPE,
    4260        dialect: DialectType = None,
    4261        udt: bool = False,
    4262        copy: bool = True,
    4263        **kwargs,
    4264    ) -> DataType:
    4265        """
    4266        Constructs a DataType object.
    4267
    4268        Args:
    4269            dtype: the data type of interest.
    4270            dialect: the dialect to use for parsing `dtype`, in case it's a string.
    4271            udt: when set to True, `dtype` will be used as-is if it can't be parsed into a
    4272                DataType, thus creating a user-defined type.
    4273            copy: whether to copy the data type.
    4274            kwargs: additional arguments to pass in the constructor of DataType.
    4275
    4276        Returns:
    4277            The constructed DataType object.
    4278        """
    4279        from sqlglot import parse_one
    4280
    4281        if isinstance(dtype, str):
    4282            if dtype.upper() == "UNKNOWN":
    4283                return DataType(this=DataType.Type.UNKNOWN, **kwargs)
    4284
    4285            try:
    4286                data_type_exp = parse_one(
    4287                    dtype, read=dialect, into=DataType, error_level=ErrorLevel.IGNORE
    4288                )
    4289            except ParseError:
    4290                if udt:
    4291                    return DataType(this=DataType.Type.USERDEFINED, kind=dtype, **kwargs)
    4292                raise
    4293        elif isinstance(dtype, DataType.Type):
    4294            data_type_exp = DataType(this=dtype)
    4295        elif isinstance(dtype, DataType):
    4296            return maybe_copy(dtype, copy)
    4297        else:
    4298            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    4299
    4300        return DataType(**{**data_type_exp.args, **kwargs})
    4301
    4302    def is_type(self, *dtypes: DATA_TYPE, check_nullable: bool = False) -> bool:
    4303        """
    4304        Checks whether this DataType matches one of the provided data types. Nested types or precision
    4305        will be compared using "structural equivalence" semantics, so e.g. array<int> != array<float>.
    4306
    4307        Args:
    4308            dtypes: the data types to compare this DataType to.
    4309            check_nullable: whether to take the NULLABLE type constructor into account for the comparison.
    4310                If false, it means that NULLABLE<INT> is equivalent to INT.
    4311
    4312        Returns:
    4313            True, if and only if there is a type in `dtypes` which is equal to this DataType.
    4314        """
    4315        if (
    4316            not check_nullable
    4317            and self.this == DataType.Type.NULLABLE
    4318            and len(self.expressions) == 1
    4319        ):
    4320            this_type = self.expressions[0]
    4321        else:
    4322            this_type = self
    4323
    4324        for dtype in dtypes:
    4325            other_type = DataType.build(dtype, copy=False, udt=True)
    4326            if (
    4327                not check_nullable
    4328                and other_type.this == DataType.Type.NULLABLE
    4329                and len(other_type.expressions) == 1
    4330            ):
    4331                other_type = other_type.expressions[0]
    4332
    4333            if (
    4334                other_type.expressions
    4335                or this_type.this == DataType.Type.USERDEFINED
    4336                or other_type.this == DataType.Type.USERDEFINED
    4337            ):
    4338                matches = this_type == other_type
    4339            else:
    4340                matches = this_type.this == other_type.this
    4341
    4342            if matches:
    4343                return True
    4344        return False
    4345
    4346
    4347DATA_TYPE = t.Union[str, DataType, DataType.Type]
    4348
    4349
    4350# https://www.postgresql.org/docs/15/datatype-pseudo.html
    4351class PseudoType(DataType):
    4352    arg_types = {"this": True}
    4353
    4354
    4355# https://www.postgresql.org/docs/15/datatype-oid.html
    4356class ObjectIdentifier(DataType):
    4357    arg_types = {"this": True}
    4358
    4359
    4360# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...)
    4361class SubqueryPredicate(Predicate):
    4362    pass
    4363
    4364
    4365class All(SubqueryPredicate):
    4366    pass
    4367
    4368
    4369class Any(SubqueryPredicate):
    4370    pass
    4371
    4372
    4373class Exists(SubqueryPredicate):
    4374    pass
    4375
    4376
    4377# Commands to interact with the databases or engines. For most of the command
    4378# expressions we parse whatever comes after the command's name as a string.
    4379class Command(Expression):
    4380    arg_types = {"this": True, "expression": False}
    4381
    4382
    4383class Transaction(Expression):
    4384    arg_types = {"this": False, "modes": False, "mark": False}
    4385
    4386
    4387class Commit(Expression):
    4388    arg_types = {"chain": False, "this": False, "durability": False}
    4389
    4390
    4391class Rollback(Expression):
    4392    arg_types = {"savepoint": False, "this": False}
    4393
    4394
    4395class Alter(Expression):
    4396    arg_types = {
    4397        "this": True,
    4398        "kind": True,
    4399        "actions": True,
    4400        "exists": False,
    4401        "only": False,
    4402        "options": False,
    4403        "cluster": False,
    4404        "not_valid": False,
    4405    }
    4406
    4407
    4408class AddConstraint(Expression):
    4409    arg_types = {"expressions": True}
    4410
    4411
    4412class DropPartition(Expression):
    4413    arg_types = {"expressions": True, "exists": False}
    4414
    4415
    4416# https://clickhouse.com/docs/en/sql-reference/statements/alter/partition#replace-partition
    4417class ReplacePartition(Expression):
    4418    arg_types = {"expression": True, "source": True}
    4419
    4420
    4421# Binary expressions like (ADD a b)
    4422class Binary(Condition):
    4423    arg_types = {"this": True, "expression": True}
    4424
    4425    @property
    4426    def left(self) -> Expression:
    4427        return self.this
    4428
    4429    @property
    4430    def right(self) -> Expression:
    4431        return self.expression
    4432
    4433
    4434class Add(Binary):
    4435    pass
    4436
    4437
    4438class Connector(Binary):
    4439    pass
    4440
    4441
    4442class And(Connector):
    4443    pass
    4444
    4445
    4446class Or(Connector):
    4447    pass
    4448
    4449
    4450class BitwiseAnd(Binary):
    4451    pass
    4452
    4453
    4454class BitwiseLeftShift(Binary):
    4455    pass
    4456
    4457
    4458class BitwiseOr(Binary):
    4459    pass
    4460
    4461
    4462class BitwiseRightShift(Binary):
    4463    pass
    4464
    4465
    4466class BitwiseXor(Binary):
    4467    pass
    4468
    4469
    4470class Div(Binary):
    4471    arg_types = {"this": True, "expression": True, "typed": False, "safe": False}
    4472
    4473
    4474class Overlaps(Binary):
    4475    pass
    4476
    4477
    4478class Dot(Binary):
    4479    @property
    4480    def is_star(self) -> bool:
    4481        return self.expression.is_star
    4482
    4483    @property
    4484    def name(self) -> str:
    4485        return self.expression.name
    4486
    4487    @property
    4488    def output_name(self) -> str:
    4489        return self.name
    4490
    4491    @classmethod
    4492    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    4493        """Build a Dot object with a sequence of expressions."""
    4494        if len(expressions) < 2:
    4495            raise ValueError("Dot requires >= 2 expressions.")
    4496
    4497        return t.cast(Dot, reduce(lambda x, y: Dot(this=x, expression=y), expressions))
    4498
    4499    @property
    4500    def parts(self) -> t.List[Expression]:
    4501        """Return the parts of a table / column in order catalog, db, table."""
    4502        this, *parts = self.flatten()
    4503
    4504        parts.reverse()
    4505
    4506        for arg in COLUMN_PARTS:
    4507            part = this.args.get(arg)
    4508
    4509            if isinstance(part, Expression):
    4510                parts.append(part)
    4511
    4512        parts.reverse()
    4513        return parts
    4514
    4515
    4516class DPipe(Binary):
    4517    arg_types = {"this": True, "expression": True, "safe": False}
    4518
    4519
    4520class EQ(Binary, Predicate):
    4521    pass
    4522
    4523
    4524class NullSafeEQ(Binary, Predicate):
    4525    pass
    4526
    4527
    4528class NullSafeNEQ(Binary, Predicate):
    4529    pass
    4530
    4531
    4532# Represents e.g. := in DuckDB which is mostly used for setting parameters
    4533class PropertyEQ(Binary):
    4534    pass
    4535
    4536
    4537class Distance(Binary):
    4538    pass
    4539
    4540
    4541class Escape(Binary):
    4542    pass
    4543
    4544
    4545class Glob(Binary, Predicate):
    4546    pass
    4547
    4548
    4549class GT(Binary, Predicate):
    4550    pass
    4551
    4552
    4553class GTE(Binary, Predicate):
    4554    pass
    4555
    4556
    4557class ILike(Binary, Predicate):
    4558    pass
    4559
    4560
    4561class ILikeAny(Binary, Predicate):
    4562    pass
    4563
    4564
    4565class IntDiv(Binary):
    4566    pass
    4567
    4568
    4569class Is(Binary, Predicate):
    4570    pass
    4571
    4572
    4573class Kwarg(Binary):
    4574    """Kwarg in special functions like func(kwarg => y)."""
    4575
    4576
    4577class Like(Binary, Predicate):
    4578    pass
    4579
    4580
    4581class LikeAny(Binary, Predicate):
    4582    pass
    4583
    4584
    4585class LT(Binary, Predicate):
    4586    pass
    4587
    4588
    4589class LTE(Binary, Predicate):
    4590    pass
    4591
    4592
    4593class Mod(Binary):
    4594    pass
    4595
    4596
    4597class Mul(Binary):
    4598    pass
    4599
    4600
    4601class NEQ(Binary, Predicate):
    4602    pass
    4603
    4604
    4605# https://www.postgresql.org/docs/current/ddl-schemas.html#DDL-SCHEMAS-PATH
    4606class Operator(Binary):
    4607    arg_types = {"this": True, "operator": True, "expression": True}
    4608
    4609
    4610class SimilarTo(Binary, Predicate):
    4611    pass
    4612
    4613
    4614class Slice(Binary):
    4615    arg_types = {"this": False, "expression": False}
    4616
    4617
    4618class Sub(Binary):
    4619    pass
    4620
    4621
    4622# Unary Expressions
    4623# (NOT a)
    4624class Unary(Condition):
    4625    pass
    4626
    4627
    4628class BitwiseNot(Unary):
    4629    pass
    4630
    4631
    4632class Not(Unary):
    4633    pass
    4634
    4635
    4636class Paren(Unary):
    4637    @property
    4638    def output_name(self) -> str:
    4639        return self.this.name
    4640
    4641
    4642class Neg(Unary):
    4643    def to_py(self) -> int | Decimal:
    4644        if self.is_number:
    4645            return self.this.to_py() * -1
    4646        return super().to_py()
    4647
    4648
    4649class Alias(Expression):
    4650    arg_types = {"this": True, "alias": False}
    4651
    4652    @property
    4653    def output_name(self) -> str:
    4654        return self.alias
    4655
    4656
    4657# BigQuery requires the UNPIVOT column list aliases to be either strings or ints, but
    4658# other dialects require identifiers. This enables us to transpile between them easily.
    4659class PivotAlias(Alias):
    4660    pass
    4661
    4662
    4663# Represents Snowflake's ANY [ ORDER BY ... ] syntax
    4664# https://docs.snowflake.com/en/sql-reference/constructs/pivot
    4665class PivotAny(Expression):
    4666    arg_types = {"this": False}
    4667
    4668
    4669class Aliases(Expression):
    4670    arg_types = {"this": True, "expressions": True}
    4671
    4672    @property
    4673    def aliases(self):
    4674        return self.expressions
    4675
    4676
    4677# https://docs.aws.amazon.com/redshift/latest/dg/query-super.html
    4678class AtIndex(Expression):
    4679    arg_types = {"this": True, "expression": True}
    4680
    4681
    4682class AtTimeZone(Expression):
    4683    arg_types = {"this": True, "zone": True}
    4684
    4685
    4686class FromTimeZone(Expression):
    4687    arg_types = {"this": True, "zone": True}
    4688
    4689
    4690class Between(Predicate):
    4691    arg_types = {"this": True, "low": True, "high": True}
    4692
    4693
    4694class Bracket(Condition):
    4695    # https://cloud.google.com/bigquery/docs/reference/standard-sql/operators#array_subscript_operator
    4696    arg_types = {
    4697        "this": True,
    4698        "expressions": True,
    4699        "offset": False,
    4700        "safe": False,
    4701        "returns_list_for_maps": False,
    4702    }
    4703
    4704    @property
    4705    def output_name(self) -> str:
    4706        if len(self.expressions) == 1:
    4707            return self.expressions[0].output_name
    4708
    4709        return super().output_name
    4710
    4711
    4712class Distinct(Expression):
    4713    arg_types = {"expressions": False, "on": False}
    4714
    4715
    4716class In(Predicate):
    4717    arg_types = {
    4718        "this": True,
    4719        "expressions": False,
    4720        "query": False,
    4721        "unnest": False,
    4722        "field": False,
    4723        "is_global": False,
    4724    }
    4725
    4726
    4727# https://cloud.google.com/bigquery/docs/reference/standard-sql/procedural-language#for-in
    4728class ForIn(Expression):
    4729    arg_types = {"this": True, "expression": True}
    4730
    4731
    4732class TimeUnit(Expression):
    4733    """Automatically converts unit arg into a var."""
    4734
    4735    arg_types = {"unit": False}
    4736
    4737    UNABBREVIATED_UNIT_NAME = {
    4738        "D": "DAY",
    4739        "H": "HOUR",
    4740        "M": "MINUTE",
    4741        "MS": "MILLISECOND",
    4742        "NS": "NANOSECOND",
    4743        "Q": "QUARTER",
    4744        "S": "SECOND",
    4745        "US": "MICROSECOND",
    4746        "W": "WEEK",
    4747        "Y": "YEAR",
    4748    }
    4749
    4750    VAR_LIKE = (Column, Literal, Var)
    4751
    4752    def __init__(self, **args):
    4753        unit = args.get("unit")
    4754        if isinstance(unit, self.VAR_LIKE):
    4755            args["unit"] = Var(
    4756                this=(self.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    4757            )
    4758        elif isinstance(unit, Week):
    4759            unit.set("this", Var(this=unit.this.name.upper()))
    4760
    4761        super().__init__(**args)
    4762
    4763    @property
    4764    def unit(self) -> t.Optional[Var | IntervalSpan]:
    4765        return self.args.get("unit")
    4766
    4767
    4768class IntervalOp(TimeUnit):
    4769    arg_types = {"unit": True, "expression": True}
    4770
    4771    def interval(self):
    4772        return Interval(
    4773            this=self.expression.copy(),
    4774            unit=self.unit.copy(),
    4775        )
    4776
    4777
    4778# https://www.oracletutorial.com/oracle-basics/oracle-interval/
    4779# https://trino.io/docs/current/language/types.html#interval-day-to-second
    4780# https://docs.databricks.com/en/sql/language-manual/data-types/interval-type.html
    4781class IntervalSpan(DataType):
    4782    arg_types = {"this": True, "expression": True}
    4783
    4784
    4785class Interval(TimeUnit):
    4786    arg_types = {"this": False, "unit": False}
    4787
    4788
    4789class IgnoreNulls(Expression):
    4790    pass
    4791
    4792
    4793class RespectNulls(Expression):
    4794    pass
    4795
    4796
    4797# https://cloud.google.com/bigquery/docs/reference/standard-sql/aggregate-function-calls#max_min_clause
    4798class HavingMax(Expression):
    4799    arg_types = {"this": True, "expression": True, "max": True}
    4800
    4801
    4802# Functions
    4803class Func(Condition):
    4804    """
    4805    The base class for all function expressions.
    4806
    4807    Attributes:
    4808        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    4809            treated as a variable length argument and the argument's value will be stored as a list.
    4810        _sql_names (list): the SQL name (1st item in the list) and aliases (subsequent items) for this
    4811            function expression. These values are used to map this node to a name during parsing as
    4812            well as to provide the function's name during SQL string generation. By default the SQL
    4813            name is set to the expression's class name transformed to snake case.
    4814    """
    4815
    4816    is_var_len_args = False
    4817
    4818    @classmethod
    4819    def from_arg_list(cls, args):
    4820        if cls.is_var_len_args:
    4821            all_arg_keys = list(cls.arg_types)
    4822            # If this function supports variable length argument treat the last argument as such.
    4823            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    4824            num_non_var = len(non_var_len_arg_keys)
    4825
    4826            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    4827            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    4828        else:
    4829            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    4830
    4831        return cls(**args_dict)
    4832
    4833    @classmethod
    4834    def sql_names(cls):
    4835        if cls is Func:
    4836            raise NotImplementedError(
    4837                "SQL name is only supported by concrete function implementations"
    4838            )
    4839        if "_sql_names" not in cls.__dict__:
    4840            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    4841        return cls._sql_names
    4842
    4843    @classmethod
    4844    def sql_name(cls):
    4845        return cls.sql_names()[0]
    4846
    4847    @classmethod
    4848    def default_parser_mappings(cls):
    4849        return {name: cls.from_arg_list for name in cls.sql_names()}
    4850
    4851
    4852class AggFunc(Func):
    4853    pass
    4854
    4855
    4856class ParameterizedAgg(AggFunc):
    4857    arg_types = {"this": True, "expressions": True, "params": True}
    4858
    4859
    4860class Abs(Func):
    4861    pass
    4862
    4863
    4864class ArgMax(AggFunc):
    4865    arg_types = {"this": True, "expression": True, "count": False}
    4866    _sql_names = ["ARG_MAX", "ARGMAX", "MAX_BY"]
    4867
    4868
    4869class ArgMin(AggFunc):
    4870    arg_types = {"this": True, "expression": True, "count": False}
    4871    _sql_names = ["ARG_MIN", "ARGMIN", "MIN_BY"]
    4872
    4873
    4874class ApproxTopK(AggFunc):
    4875    arg_types = {"this": True, "expression": False, "counters": False}
    4876
    4877
    4878class Flatten(Func):
    4879    pass
    4880
    4881
    4882# https://spark.apache.org/docs/latest/api/sql/index.html#transform
    4883class Transform(Func):
    4884    arg_types = {"this": True, "expression": True}
    4885
    4886
    4887class Anonymous(Func):
    4888    arg_types = {"this": True, "expressions": False}
    4889    is_var_len_args = True
    4890
    4891    @property
    4892    def name(self) -> str:
    4893        return self.this if isinstance(self.this, str) else self.this.name
    4894
    4895
    4896class AnonymousAggFunc(AggFunc):
    4897    arg_types = {"this": True, "expressions": False}
    4898    is_var_len_args = True
    4899
    4900
    4901# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/combinators
    4902class CombinedAggFunc(AnonymousAggFunc):
    4903    arg_types = {"this": True, "expressions": False, "parts": True}
    4904
    4905
    4906class CombinedParameterizedAgg(ParameterizedAgg):
    4907    arg_types = {"this": True, "expressions": True, "params": True, "parts": True}
    4908
    4909
    4910# https://docs.snowflake.com/en/sql-reference/functions/hll
    4911# https://docs.aws.amazon.com/redshift/latest/dg/r_HLL_function.html
    4912class Hll(AggFunc):
    4913    arg_types = {"this": True, "expressions": False}
    4914    is_var_len_args = True
    4915
    4916
    4917class ApproxDistinct(AggFunc):
    4918    arg_types = {"this": True, "accuracy": False}
    4919    _sql_names = ["APPROX_DISTINCT", "APPROX_COUNT_DISTINCT"]
    4920
    4921
    4922class Array(Func):
    4923    arg_types = {"expressions": False, "bracket_notation": False}
    4924    is_var_len_args = True
    4925
    4926
    4927# https://docs.snowflake.com/en/sql-reference/functions/to_array
    4928class ToArray(Func):
    4929    pass
    4930
    4931
    4932# https://materialize.com/docs/sql/types/list/
    4933class List(Func):
    4934    arg_types = {"expressions": False}
    4935    is_var_len_args = True
    4936
    4937
    4938# String pad, kind True -> LPAD, False -> RPAD
    4939class Pad(Func):
    4940    arg_types = {"this": True, "expression": True, "fill_pattern": False, "is_left": True}
    4941
    4942
    4943# https://docs.snowflake.com/en/sql-reference/functions/to_char
    4944# https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/TO_CHAR-number.html
    4945class ToChar(Func):
    4946    arg_types = {"this": True, "format": False, "nlsparam": False}
    4947
    4948
    4949# https://docs.snowflake.com/en/sql-reference/functions/to_decimal
    4950# https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/TO_NUMBER.html
    4951class ToNumber(Func):
    4952    arg_types = {
    4953        "this": True,
    4954        "format": False,
    4955        "nlsparam": False,
    4956        "precision": False,
    4957        "scale": False,
    4958    }
    4959
    4960
    4961# https://learn.microsoft.com/en-us/sql/t-sql/functions/cast-and-convert-transact-sql?view=sql-server-ver16#syntax
    4962class Convert(Func):
    4963    arg_types = {"this": True, "expression": True, "style": False}
    4964
    4965
    4966class ConvertTimezone(Func):
    4967    arg_types = {"source_tz": False, "target_tz": True, "timestamp": True}
    4968
    4969
    4970class GenerateSeries(Func):
    4971    arg_types = {"start": True, "end": True, "step": False, "is_end_exclusive": False}
    4972
    4973
    4974# Postgres' GENERATE_SERIES function returns a row set, i.e. it implicitly explodes when it's
    4975# used in a projection, so this expression is a helper that facilitates transpilation to other
    4976# dialects. For example, we'd generate UNNEST(GENERATE_SERIES(...)) in DuckDB
    4977class ExplodingGenerateSeries(GenerateSeries):
    4978    pass
    4979
    4980
    4981class ArrayAgg(AggFunc):
    4982    arg_types = {"this": True, "nulls_excluded": False}
    4983
    4984
    4985class ArrayUniqueAgg(AggFunc):
    4986    pass
    4987
    4988
    4989class ArrayAll(Func):
    4990    arg_types = {"this": True, "expression": True}
    4991
    4992
    4993# Represents Python's `any(f(x) for x in array)`, where `array` is `this` and `f` is `expression`
    4994class ArrayAny(Func):
    4995    arg_types = {"this": True, "expression": True}
    4996
    4997
    4998class ArrayConcat(Func):
    4999    _sql_names = ["ARRAY_CONCAT", "ARRAY_CAT"]
    5000    arg_types = {"this": True, "expressions": False}
    5001    is_var_len_args = True
    5002
    5003
    5004class ArrayConstructCompact(Func):
    5005    arg_types = {"expressions": True}
    5006    is_var_len_args = True
    5007
    5008
    5009class ArrayContains(Binary, Func):
    5010    _sql_names = ["ARRAY_CONTAINS", "ARRAY_HAS"]
    5011
    5012
    5013class ArrayContainsAll(Binary, Func):
    5014    _sql_names = ["ARRAY_CONTAINS_ALL", "ARRAY_HAS_ALL"]
    5015
    5016
    5017class ArrayFilter(Func):
    5018    arg_types = {"this": True, "expression": True}
    5019    _sql_names = ["FILTER", "ARRAY_FILTER"]
    5020
    5021
    5022class ArrayToString(Func):
    5023    arg_types = {"this": True, "expression": True, "null": False}
    5024    _sql_names = ["ARRAY_TO_STRING", "ARRAY_JOIN"]
    5025
    5026
    5027class StringToArray(Func):
    5028    arg_types = {"this": True, "expression": True, "null": False}
    5029    _sql_names = ["STRING_TO_ARRAY", "SPLIT_BY_STRING"]
    5030
    5031
    5032class ArrayOverlaps(Binary, Func):
    5033    pass
    5034
    5035
    5036class ArraySize(Func):
    5037    arg_types = {"this": True, "expression": False}
    5038    _sql_names = ["ARRAY_SIZE", "ARRAY_LENGTH"]
    5039
    5040
    5041class ArraySort(Func):
    5042    arg_types = {"this": True, "expression": False}
    5043
    5044
    5045class ArraySum(Func):
    5046    arg_types = {"this": True, "expression": False}
    5047
    5048
    5049class ArrayUnionAgg(AggFunc):
    5050    pass
    5051
    5052
    5053class Avg(AggFunc):
    5054    pass
    5055
    5056
    5057class AnyValue(AggFunc):
    5058    pass
    5059
    5060
    5061class Lag(AggFunc):
    5062    arg_types = {"this": True, "offset": False, "default": False}
    5063
    5064
    5065class Lead(AggFunc):
    5066    arg_types = {"this": True, "offset": False, "default": False}
    5067
    5068
    5069# some dialects have a distinction between first and first_value, usually first is an aggregate func
    5070# and first_value is a window func
    5071class First(AggFunc):
    5072    pass
    5073
    5074
    5075class Last(AggFunc):
    5076    pass
    5077
    5078
    5079class FirstValue(AggFunc):
    5080    pass
    5081
    5082
    5083class LastValue(AggFunc):
    5084    pass
    5085
    5086
    5087class NthValue(AggFunc):
    5088    arg_types = {"this": True, "offset": True}
    5089
    5090
    5091class Case(Func):
    5092    arg_types = {"this": False, "ifs": True, "default": False}
    5093
    5094    def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case:
    5095        instance = maybe_copy(self, copy)
    5096        instance.append(
    5097            "ifs",
    5098            If(
    5099                this=maybe_parse(condition, copy=copy, **opts),
    5100                true=maybe_parse(then, copy=copy, **opts),
    5101            ),
    5102        )
    5103        return instance
    5104
    5105    def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case:
    5106        instance = maybe_copy(self, copy)
    5107        instance.set("default", maybe_parse(condition, copy=copy, **opts))
    5108        return instance
    5109
    5110
    5111class Cast(Func):
    5112    arg_types = {
    5113        "this": True,
    5114        "to": True,
    5115        "format": False,
    5116        "safe": False,
    5117        "action": False,
    5118    }
    5119
    5120    @property
    5121    def name(self) -> str:
    5122        return self.this.name
    5123
    5124    @property
    5125    def to(self) -> DataType:
    5126        return self.args["to"]
    5127
    5128    @property
    5129    def output_name(self) -> str:
    5130        return self.name
    5131
    5132    def is_type(self, *dtypes: DATA_TYPE) -> bool:
    5133        """
    5134        Checks whether this Cast's DataType matches one of the provided data types. Nested types
    5135        like arrays or structs will be compared using "structural equivalence" semantics, so e.g.
    5136        array<int> != array<float>.
    5137
    5138        Args:
    5139            dtypes: the data types to compare this Cast's DataType to.
    5140
    5141        Returns:
    5142            True, if and only if there is a type in `dtypes` which is equal to this Cast's DataType.
    5143        """
    5144        return self.to.is_type(*dtypes)
    5145
    5146
    5147class TryCast(Cast):
    5148    pass
    5149
    5150
    5151class Try(Func):
    5152    pass
    5153
    5154
    5155class CastToStrType(Func):
    5156    arg_types = {"this": True, "to": True}
    5157
    5158
    5159class Collate(Binary, Func):
    5160    pass
    5161
    5162
    5163class Ceil(Func):
    5164    arg_types = {"this": True, "decimals": False}
    5165    _sql_names = ["CEIL", "CEILING"]
    5166
    5167
    5168class Coalesce(Func):
    5169    arg_types = {"this": True, "expressions": False, "is_nvl": False}
    5170    is_var_len_args = True
    5171    _sql_names = ["COALESCE", "IFNULL", "NVL"]
    5172
    5173
    5174class Chr(Func):
    5175    arg_types = {"this": True, "charset": False, "expressions": False}
    5176    is_var_len_args = True
    5177    _sql_names = ["CHR", "CHAR"]
    5178
    5179
    5180class Concat(Func):
    5181    arg_types = {"expressions": True, "safe": False, "coalesce": False}
    5182    is_var_len_args = True
    5183
    5184
    5185class ConcatWs(Concat):
    5186    _sql_names = ["CONCAT_WS"]
    5187
    5188
    5189# https://docs.oracle.com/cd/B13789_01/server.101/b10759/operators004.htm#i1035022
    5190class ConnectByRoot(Func):
    5191    pass
    5192
    5193
    5194class Count(AggFunc):
    5195    arg_types = {"this": False, "expressions": False, "big_int": False}
    5196    is_var_len_args = True
    5197
    5198
    5199class CountIf(AggFunc):
    5200    _sql_names = ["COUNT_IF", "COUNTIF"]
    5201
    5202
    5203# cube root
    5204class Cbrt(Func):
    5205    pass
    5206
    5207
    5208class CurrentDate(Func):
    5209    arg_types = {"this": False}
    5210
    5211
    5212class CurrentDatetime(Func):
    5213    arg_types = {"this": False}
    5214
    5215
    5216class CurrentTime(Func):
    5217    arg_types = {"this": False}
    5218
    5219
    5220class CurrentTimestamp(Func):
    5221    arg_types = {"this": False, "sysdate": False}
    5222
    5223
    5224class CurrentUser(Func):
    5225    arg_types = {"this": False}
    5226
    5227
    5228class DateAdd(Func, IntervalOp):
    5229    arg_types = {"this": True, "expression": True, "unit": False}
    5230
    5231
    5232class DateSub(Func, IntervalOp):
    5233    arg_types = {"this": True, "expression": True, "unit": False}
    5234
    5235
    5236class DateDiff(Func, TimeUnit):
    5237    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    5238    arg_types = {"this": True, "expression": True, "unit": False}
    5239
    5240
    5241class DateTrunc(Func):
    5242    arg_types = {"unit": True, "this": True, "zone": False}
    5243
    5244    def __init__(self, **args):
    5245        unit = args.get("unit")
    5246        if isinstance(unit, TimeUnit.VAR_LIKE):
    5247            args["unit"] = Literal.string(
    5248                (TimeUnit.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    5249            )
    5250        elif isinstance(unit, Week):
    5251            unit.set("this", Literal.string(unit.this.name.upper()))
    5252
    5253        super().__init__(**args)
    5254
    5255    @property
    5256    def unit(self) -> Expression:
    5257        return self.args["unit"]
    5258
    5259
    5260# https://cloud.google.com/bigquery/docs/reference/standard-sql/datetime_functions#datetime
    5261# expression can either be time_expr or time_zone
    5262class Datetime(Func):
    5263    arg_types = {"this": True, "expression": False}
    5264
    5265
    5266class DatetimeAdd(Func, IntervalOp):
    5267    arg_types = {"this": True, "expression": True, "unit": False}
    5268
    5269
    5270class DatetimeSub(Func, IntervalOp):
    5271    arg_types = {"this": True, "expression": True, "unit": False}
    5272
    5273
    5274class DatetimeDiff(Func, TimeUnit):
    5275    arg_types = {"this": True, "expression": True, "unit": False}
    5276
    5277
    5278class DatetimeTrunc(Func, TimeUnit):
    5279    arg_types = {"this": True, "unit": True, "zone": False}
    5280
    5281
    5282class DayOfWeek(Func):
    5283    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
    5284
    5285
    5286# https://duckdb.org/docs/sql/functions/datepart.html#part-specifiers-only-usable-as-date-part-specifiers
    5287# ISO day of week function in duckdb is ISODOW
    5288class DayOfWeekIso(Func):
    5289    _sql_names = ["DAYOFWEEK_ISO", "ISODOW"]
    5290
    5291
    5292class DayOfMonth(Func):
    5293    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
    5294
    5295
    5296class DayOfYear(Func):
    5297    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
    5298
    5299
    5300class ToDays(Func):
    5301    pass
    5302
    5303
    5304class WeekOfYear(Func):
    5305    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
    5306
    5307
    5308class MonthsBetween(Func):
    5309    arg_types = {"this": True, "expression": True, "roundoff": False}
    5310
    5311
    5312class LastDay(Func, TimeUnit):
    5313    _sql_names = ["LAST_DAY", "LAST_DAY_OF_MONTH"]
    5314    arg_types = {"this": True, "unit": False}
    5315
    5316
    5317class Extract(Func):
    5318    arg_types = {"this": True, "expression": True}
    5319
    5320
    5321class Timestamp(Func):
    5322    arg_types = {"this": False, "zone": False, "with_tz": False}
    5323
    5324
    5325class TimestampAdd(Func, TimeUnit):
    5326    arg_types = {"this": True, "expression": True, "unit": False}
    5327
    5328
    5329class TimestampSub(Func, TimeUnit):
    5330    arg_types = {"this": True, "expression": True, "unit": False}
    5331
    5332
    5333class TimestampDiff(Func, TimeUnit):
    5334    _sql_names = ["TIMESTAMPDIFF", "TIMESTAMP_DIFF"]
    5335    arg_types = {"this": True, "expression": True, "unit": False}
    5336
    5337
    5338class TimestampTrunc(Func, TimeUnit):
    5339    arg_types = {"this": True, "unit": True, "zone": False}
    5340
    5341
    5342class TimeAdd(Func, TimeUnit):
    5343    arg_types = {"this": True, "expression": True, "unit": False}
    5344
    5345
    5346class TimeSub(Func, TimeUnit):
    5347    arg_types = {"this": True, "expression": True, "unit": False}
    5348
    5349
    5350class TimeDiff(Func, TimeUnit):
    5351    arg_types = {"this": True, "expression": True, "unit": False}
    5352
    5353
    5354class TimeTrunc(Func, TimeUnit):
    5355    arg_types = {"this": True, "unit": True, "zone": False}
    5356
    5357
    5358class DateFromParts(Func):
    5359    _sql_names = ["DATE_FROM_PARTS", "DATEFROMPARTS"]
    5360    arg_types = {"year": True, "month": True, "day": True}
    5361
    5362
    5363class TimeFromParts(Func):
    5364    _sql_names = ["TIME_FROM_PARTS", "TIMEFROMPARTS"]
    5365    arg_types = {
    5366        "hour": True,
    5367        "min": True,
    5368        "sec": True,
    5369        "nano": False,
    5370        "fractions": False,
    5371        "precision": False,
    5372    }
    5373
    5374
    5375class DateStrToDate(Func):
    5376    pass
    5377
    5378
    5379class DateToDateStr(Func):
    5380    pass
    5381
    5382
    5383class DateToDi(Func):
    5384    pass
    5385
    5386
    5387# https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions#date
    5388class Date(Func):
    5389    arg_types = {"this": False, "zone": False, "expressions": False}
    5390    is_var_len_args = True
    5391
    5392
    5393class Day(Func):
    5394    pass
    5395
    5396
    5397class Decode(Func):
    5398    arg_types = {"this": True, "charset": True, "replace": False}
    5399
    5400
    5401class DiToDate(Func):
    5402    pass
    5403
    5404
    5405class Encode(Func):
    5406    arg_types = {"this": True, "charset": True}
    5407
    5408
    5409class Exp(Func):
    5410    pass
    5411
    5412
    5413# https://docs.snowflake.com/en/sql-reference/functions/flatten
    5414class Explode(Func):
    5415    arg_types = {"this": True, "expressions": False}
    5416    is_var_len_args = True
    5417
    5418
    5419# https://spark.apache.org/docs/latest/api/sql/#inline
    5420class Inline(Func):
    5421    pass
    5422
    5423
    5424class ExplodeOuter(Explode):
    5425    pass
    5426
    5427
    5428class Posexplode(Explode):
    5429    pass
    5430
    5431
    5432class PosexplodeOuter(Posexplode, ExplodeOuter):
    5433    pass
    5434
    5435
    5436class Unnest(Func, UDTF):
    5437    arg_types = {
    5438        "expressions": True,
    5439        "alias": False,
    5440        "offset": False,
    5441        "explode_array": False,
    5442    }
    5443
    5444    @property
    5445    def selects(self) -> t.List[Expression]:
    5446        columns = super().selects
    5447        offset = self.args.get("offset")
    5448        if offset:
    5449            columns = columns + [to_identifier("offset") if offset is True else offset]
    5450        return columns
    5451
    5452
    5453class Floor(Func):
    5454    arg_types = {"this": True, "decimals": False}
    5455
    5456
    5457class FromBase64(Func):
    5458    pass
    5459
    5460
    5461class ToBase64(Func):
    5462    pass
    5463
    5464
    5465# https://trino.io/docs/current/functions/datetime.html#from_iso8601_timestamp
    5466class FromISO8601Timestamp(Func):
    5467    _sql_names = ["FROM_ISO8601_TIMESTAMP"]
    5468
    5469
    5470class GapFill(Func):
    5471    arg_types = {
    5472        "this": True,
    5473        "ts_column": True,
    5474        "bucket_width": True,
    5475        "partitioning_columns": False,
    5476        "value_columns": False,
    5477        "origin": False,
    5478        "ignore_nulls": False,
    5479    }
    5480
    5481
    5482# https://cloud.google.com/bigquery/docs/reference/standard-sql/array_functions#generate_date_array
    5483class GenerateDateArray(Func):
    5484    arg_types = {"start": True, "end": True, "step": False}
    5485
    5486
    5487# https://cloud.google.com/bigquery/docs/reference/standard-sql/array_functions#generate_timestamp_array
    5488class GenerateTimestampArray(Func):
    5489    arg_types = {"start": True, "end": True, "step": True}
    5490
    5491
    5492class Greatest(Func):
    5493    arg_types = {"this": True, "expressions": False}
    5494    is_var_len_args = True
    5495
    5496
    5497class GroupConcat(AggFunc):
    5498    arg_types = {"this": True, "separator": False}
    5499
    5500
    5501class Hex(Func):
    5502    pass
    5503
    5504
    5505class LowerHex(Hex):
    5506    pass
    5507
    5508
    5509class Xor(Connector, Func):
    5510    arg_types = {"this": False, "expression": False, "expressions": False}
    5511
    5512
    5513class If(Func):
    5514    arg_types = {"this": True, "true": True, "false": False}
    5515    _sql_names = ["IF", "IIF"]
    5516
    5517
    5518class Nullif(Func):
    5519    arg_types = {"this": True, "expression": True}
    5520
    5521
    5522class Initcap(Func):
    5523    arg_types = {"this": True, "expression": False}
    5524
    5525
    5526class IsNan(Func):
    5527    _sql_names = ["IS_NAN", "ISNAN"]
    5528
    5529
    5530class IsInf(Func):
    5531    _sql_names = ["IS_INF", "ISINF"]
    5532
    5533
    5534# https://www.postgresql.org/docs/current/functions-json.html
    5535class JSON(Expression):
    5536    arg_types = {"this": False, "with": False, "unique": False}
    5537
    5538
    5539class JSONPath(Expression):
    5540    arg_types = {"expressions": True}
    5541
    5542    @property
    5543    def output_name(self) -> str:
    5544        last_segment = self.expressions[-1].this
    5545        return last_segment if isinstance(last_segment, str) else ""
    5546
    5547
    5548class JSONPathPart(Expression):
    5549    arg_types = {}
    5550
    5551
    5552class JSONPathFilter(JSONPathPart):
    5553    arg_types = {"this": True}
    5554
    5555
    5556class JSONPathKey(JSONPathPart):
    5557    arg_types = {"this": True}
    5558
    5559
    5560class JSONPathRecursive(JSONPathPart):
    5561    arg_types = {"this": False}
    5562
    5563
    5564class JSONPathRoot(JSONPathPart):
    5565    pass
    5566
    5567
    5568class JSONPathScript(JSONPathPart):
    5569    arg_types = {"this": True}
    5570
    5571
    5572class JSONPathSlice(JSONPathPart):
    5573    arg_types = {"start": False, "end": False, "step": False}
    5574
    5575
    5576class JSONPathSelector(JSONPathPart):
    5577    arg_types = {"this": True}
    5578
    5579
    5580class JSONPathSubscript(JSONPathPart):
    5581    arg_types = {"this": True}
    5582
    5583
    5584class JSONPathUnion(JSONPathPart):
    5585    arg_types = {"expressions": True}
    5586
    5587
    5588class JSONPathWildcard(JSONPathPart):
    5589    pass
    5590
    5591
    5592class FormatJson(Expression):
    5593    pass
    5594
    5595
    5596class JSONKeyValue(Expression):
    5597    arg_types = {"this": True, "expression": True}
    5598
    5599
    5600class JSONObject(Func):
    5601    arg_types = {
    5602        "expressions": False,
    5603        "null_handling": False,
    5604        "unique_keys": False,
    5605        "return_type": False,
    5606        "encoding": False,
    5607    }
    5608
    5609
    5610class JSONObjectAgg(AggFunc):
    5611    arg_types = {
    5612        "expressions": False,
    5613        "null_handling": False,
    5614        "unique_keys": False,
    5615        "return_type": False,
    5616        "encoding": False,
    5617    }
    5618
    5619
    5620# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_ARRAY.html
    5621class JSONArray(Func):
    5622    arg_types = {
    5623        "expressions": True,
    5624        "null_handling": False,
    5625        "return_type": False,
    5626        "strict": False,
    5627    }
    5628
    5629
    5630# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_ARRAYAGG.html
    5631class JSONArrayAgg(Func):
    5632    arg_types = {
    5633        "this": True,
    5634        "order": False,
    5635        "null_handling": False,
    5636        "return_type": False,
    5637        "strict": False,
    5638    }
    5639
    5640
    5641class JSONExists(Func):
    5642    arg_types = {"this": True, "path": True, "passing": False, "on_condition": False}
    5643
    5644
    5645# https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_TABLE.html
    5646# Note: parsing of JSON column definitions is currently incomplete.
    5647class JSONColumnDef(Expression):
    5648    arg_types = {"this": False, "kind": False, "path": False, "nested_schema": False}
    5649
    5650
    5651class JSONSchema(Expression):
    5652    arg_types = {"expressions": True}
    5653
    5654
    5655# https://dev.mysql.com/doc/refman/8.4/en/json-search-functions.html#function_json-value
    5656class JSONValue(Expression):
    5657    arg_types = {
    5658        "this": True,
    5659        "path": True,
    5660        "returning": False,
    5661        "on_condition": False,
    5662    }
    5663
    5664
    5665# # https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/JSON_TABLE.html
    5666class JSONTable(Func):
    5667    arg_types = {
    5668        "this": True,
    5669        "schema": True,
    5670        "path": False,
    5671        "error_handling": False,
    5672        "empty_handling": False,
    5673    }
    5674
    5675
    5676# https://docs.snowflake.com/en/sql-reference/functions/object_insert
    5677class ObjectInsert(Func):
    5678    arg_types = {
    5679        "this": True,
    5680        "key": True,
    5681        "value": True,
    5682        "update_flag": False,
    5683    }
    5684
    5685
    5686class OpenJSONColumnDef(Expression):
    5687    arg_types = {"this": True, "kind": True, "path": False, "as_json": False}
    5688
    5689
    5690class OpenJSON(Func):
    5691    arg_types = {"this": True, "path": False, "expressions": False}
    5692
    5693
    5694class JSONBContains(Binary, Func):
    5695    _sql_names = ["JSONB_CONTAINS"]
    5696
    5697
    5698class JSONExtract(Binary, Func):
    5699    arg_types = {
    5700        "this": True,
    5701        "expression": True,
    5702        "only_json_types": False,
    5703        "expressions": False,
    5704        "variant_extract": False,
    5705    }
    5706    _sql_names = ["JSON_EXTRACT"]
    5707    is_var_len_args = True
    5708
    5709    @property
    5710    def output_name(self) -> str:
    5711        return self.expression.output_name if not self.expressions else ""
    5712
    5713
    5714class JSONExtractScalar(Binary, Func):
    5715    arg_types = {"this": True, "expression": True, "only_json_types": False, "expressions": False}
    5716    _sql_names = ["JSON_EXTRACT_SCALAR"]
    5717    is_var_len_args = True
    5718
    5719    @property
    5720    def output_name(self) -> str:
    5721        return self.expression.output_name
    5722
    5723
    5724class JSONBExtract(Binary, Func):
    5725    _sql_names = ["JSONB_EXTRACT"]
    5726
    5727
    5728class JSONBExtractScalar(Binary, Func):
    5729    _sql_names = ["JSONB_EXTRACT_SCALAR"]
    5730
    5731
    5732class JSONFormat(Func):
    5733    arg_types = {"this": False, "options": False}
    5734    _sql_names = ["JSON_FORMAT"]
    5735
    5736
    5737# https://dev.mysql.com/doc/refman/8.0/en/json-search-functions.html#operator_member-of
    5738class JSONArrayContains(Binary, Predicate, Func):
    5739    _sql_names = ["JSON_ARRAY_CONTAINS"]
    5740
    5741
    5742class ParseJSON(Func):
    5743    # BigQuery, Snowflake have PARSE_JSON, Presto has JSON_PARSE
    5744    # Snowflake also has TRY_PARSE_JSON, which is represented using `safe`
    5745    _sql_names = ["PARSE_JSON", "JSON_PARSE"]
    5746    arg_types = {"this": True, "expression": False, "safe": False}
    5747
    5748
    5749class Least(Func):
    5750    arg_types = {"this": True, "expressions": False}
    5751    is_var_len_args = True
    5752
    5753
    5754class Left(Func):
    5755    arg_types = {"this": True, "expression": True}
    5756
    5757
    5758class Right(Func):
    5759    arg_types = {"this": True, "expression": True}
    5760
    5761
    5762class Length(Func):
    5763    arg_types = {"this": True, "binary": False}
    5764    _sql_names = ["LENGTH", "LEN"]
    5765
    5766
    5767class Levenshtein(Func):
    5768    arg_types = {
    5769        "this": True,
    5770        "expression": False,
    5771        "ins_cost": False,
    5772        "del_cost": False,
    5773        "sub_cost": False,
    5774    }
    5775
    5776
    5777class Ln(Func):
    5778    pass
    5779
    5780
    5781class Log(Func):
    5782    arg_types = {"this": True, "expression": False}
    5783
    5784
    5785class LogicalOr(AggFunc):
    5786    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]
    5787
    5788
    5789class LogicalAnd(AggFunc):
    5790    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]
    5791
    5792
    5793class Lower(Func):
    5794    _sql_names = ["LOWER", "LCASE"]
    5795
    5796
    5797class Map(Func):
    5798    arg_types = {"keys": False, "values": False}
    5799
    5800    @property
    5801    def keys(self) -> t.List[Expression]:
    5802        keys = self.args.get("keys")
    5803        return keys.expressions if keys else []
    5804
    5805    @property
    5806    def values(self) -> t.List[Expression]:
    5807        values = self.args.get("values")
    5808        return values.expressions if values else []
    5809
    5810
    5811# Represents the MAP {...} syntax in DuckDB - basically convert a struct to a MAP
    5812class ToMap(Func):
    5813    pass
    5814
    5815
    5816class MapFromEntries(Func):
    5817    pass
    5818
    5819
    5820# https://learn.microsoft.com/en-us/sql/t-sql/language-elements/scope-resolution-operator-transact-sql?view=sql-server-ver16
    5821class ScopeResolution(Expression):
    5822    arg_types = {"this": False, "expression": True}
    5823
    5824
    5825class Stream(Expression):
    5826    pass
    5827
    5828
    5829class StarMap(Func):
    5830    pass
    5831
    5832
    5833class VarMap(Func):
    5834    arg_types = {"keys": True, "values": True}
    5835    is_var_len_args = True
    5836
    5837    @property
    5838    def keys(self) -> t.List[Expression]:
    5839        return self.args["keys"].expressions
    5840
    5841    @property
    5842    def values(self) -> t.List[Expression]:
    5843        return self.args["values"].expressions
    5844
    5845
    5846# https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html
    5847class MatchAgainst(Func):
    5848    arg_types = {"this": True, "expressions": True, "modifier": False}
    5849
    5850
    5851class Max(AggFunc):
    5852    arg_types = {"this": True, "expressions": False}
    5853    is_var_len_args = True
    5854
    5855
    5856class MD5(Func):
    5857    _sql_names = ["MD5"]
    5858
    5859
    5860# Represents the variant of the MD5 function that returns a binary value
    5861class MD5Digest(Func):
    5862    _sql_names = ["MD5_DIGEST"]
    5863
    5864
    5865class Min(AggFunc):
    5866    arg_types = {"this": True, "expressions": False}
    5867    is_var_len_args = True
    5868
    5869
    5870class Month(Func):
    5871    pass
    5872
    5873
    5874class AddMonths(Func):
    5875    arg_types = {"this": True, "expression": True}
    5876
    5877
    5878class Nvl2(Func):
    5879    arg_types = {"this": True, "true": True, "false": False}
    5880
    5881
    5882class Normalize(Func):
    5883    arg_types = {"this": True, "form": False}
    5884
    5885
    5886# https://cloud.google.com/bigquery/docs/reference/standard-sql/bigqueryml-syntax-predict#mlpredict_function
    5887class Predict(Func):
    5888    arg_types = {"this": True, "expression": True, "params_struct": False}
    5889
    5890
    5891class Pow(Binary, Func):
    5892    _sql_names = ["POWER", "POW"]
    5893
    5894
    5895class PercentileCont(AggFunc):
    5896    arg_types = {"this": True, "expression": False}
    5897
    5898
    5899class PercentileDisc(AggFunc):
    5900    arg_types = {"this": True, "expression": False}
    5901
    5902
    5903class Quantile(AggFunc):
    5904    arg_types = {"this": True, "quantile": True}
    5905
    5906
    5907class ApproxQuantile(Quantile):
    5908    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
    5909
    5910
    5911class Quarter(Func):
    5912    pass
    5913
    5914
    5915# https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/SQL-Functions-Expressions-and-Predicates/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions/RANDOM/RANDOM-Function-Syntax
    5916# teradata lower and upper bounds
    5917class Rand(Func):
    5918    _sql_names = ["RAND", "RANDOM"]
    5919    arg_types = {"this": False, "lower": False, "upper": False}
    5920
    5921
    5922class Randn(Func):
    5923    arg_types = {"this": False}
    5924
    5925
    5926class RangeN(Func):
    5927    arg_types = {"this": True, "expressions": True, "each": False}
    5928
    5929
    5930class ReadCSV(Func):
    5931    _sql_names = ["READ_CSV"]
    5932    is_var_len_args = True
    5933    arg_types = {"this": True, "expressions": False}
    5934
    5935
    5936class Reduce(Func):
    5937    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
    5938
    5939
    5940class RegexpExtract(Func):
    5941    arg_types = {
    5942        "this": True,
    5943        "expression": True,
    5944        "position": False,
    5945        "occurrence": False,
    5946        "parameters": False,
    5947        "group": False,
    5948    }
    5949
    5950
    5951class RegexpReplace(Func):
    5952    arg_types = {
    5953        "this": True,
    5954        "expression": True,
    5955        "replacement": False,
    5956        "position": False,
    5957        "occurrence": False,
    5958        "modifiers": False,
    5959    }
    5960
    5961
    5962class RegexpLike(Binary, Func):
    5963    arg_types = {"this": True, "expression": True, "flag": False}
    5964
    5965
    5966class RegexpILike(Binary, Func):
    5967    arg_types = {"this": True, "expression": True, "flag": False}
    5968
    5969
    5970# https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.split.html
    5971# limit is the number of times a pattern is applied
    5972class RegexpSplit(Func):
    5973    arg_types = {"this": True, "expression": True, "limit": False}
    5974
    5975
    5976class Repeat(Func):
    5977    arg_types = {"this": True, "times": True}
    5978
    5979
    5980# https://learn.microsoft.com/en-us/sql/t-sql/functions/round-transact-sql?view=sql-server-ver16
    5981# tsql third argument function == trunctaion if not 0
    5982class Round(Func):
    5983    arg_types = {"this": True, "decimals": False, "truncate": False}
    5984
    5985
    5986class RowNumber(Func):
    5987    arg_types: t.Dict[str, t.Any] = {}
    5988
    5989
    5990class SafeDivide(Func):
    5991    arg_types = {"this": True, "expression": True}
    5992
    5993
    5994class SHA(Func):
    5995    _sql_names = ["SHA", "SHA1"]
    5996
    5997
    5998class SHA2(Func):
    5999    _sql_names = ["SHA2"]
    6000    arg_types = {"this": True, "length": False}
    6001
    6002
    6003class Sign(Func):
    6004    _sql_names = ["SIGN", "SIGNUM"]
    6005
    6006
    6007class SortArray(Func):
    6008    arg_types = {"this": True, "asc": False}
    6009
    6010
    6011class Split(Func):
    6012    arg_types = {"this": True, "expression": True, "limit": False}
    6013
    6014
    6015# Start may be omitted in the case of postgres
    6016# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6
    6017class Substring(Func):
    6018    arg_types = {"this": True, "start": False, "length": False}
    6019
    6020
    6021class StandardHash(Func):
    6022    arg_types = {"this": True, "expression": False}
    6023
    6024
    6025class StartsWith(Func):
    6026    _sql_names = ["STARTS_WITH", "STARTSWITH"]
    6027    arg_types = {"this": True, "expression": True}
    6028
    6029
    6030class StrPosition(Func):
    6031    arg_types = {
    6032        "this": True,
    6033        "substr": True,
    6034        "position": False,
    6035        "instance": False,
    6036    }
    6037
    6038
    6039class StrToDate(Func):
    6040    arg_types = {"this": True, "format": False, "safe": False}
    6041
    6042
    6043class StrToTime(Func):
    6044    arg_types = {"this": True, "format": True, "zone": False, "safe": False}
    6045
    6046
    6047# Spark allows unix_timestamp()
    6048# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html
    6049class StrToUnix(Func):
    6050    arg_types = {"this": False, "format": False}
    6051
    6052
    6053# https://prestodb.io/docs/current/functions/string.html
    6054# https://spark.apache.org/docs/latest/api/sql/index.html#str_to_map
    6055class StrToMap(Func):
    6056    arg_types = {
    6057        "this": True,
    6058        "pair_delim": False,
    6059        "key_value_delim": False,
    6060        "duplicate_resolution_callback": False,
    6061    }
    6062
    6063
    6064class NumberToStr(Func):
    6065    arg_types = {"this": True, "format": True, "culture": False}
    6066
    6067
    6068class FromBase(Func):
    6069    arg_types = {"this": True, "expression": True}
    6070
    6071
    6072class Struct(Func):
    6073    arg_types = {"expressions": False}
    6074    is_var_len_args = True
    6075
    6076
    6077class StructExtract(Func):
    6078    arg_types = {"this": True, "expression": True}
    6079
    6080
    6081# https://learn.microsoft.com/en-us/sql/t-sql/functions/stuff-transact-sql?view=sql-server-ver16
    6082# https://docs.snowflake.com/en/sql-reference/functions/insert
    6083class Stuff(Func):
    6084    _sql_names = ["STUFF", "INSERT"]
    6085    arg_types = {"this": True, "start": True, "length": True, "expression": True}
    6086
    6087
    6088class Sum(AggFunc):
    6089    pass
    6090
    6091
    6092class Sqrt(Func):
    6093    pass
    6094
    6095
    6096class Stddev(AggFunc):
    6097    _sql_names = ["STDDEV", "STDEV"]
    6098
    6099
    6100class StddevPop(AggFunc):
    6101    pass
    6102
    6103
    6104class StddevSamp(AggFunc):
    6105    pass
    6106
    6107
    6108# https://cloud.google.com/bigquery/docs/reference/standard-sql/time_functions#time
    6109class Time(Func):
    6110    arg_types = {"this": False, "zone": False}
    6111
    6112
    6113class TimeToStr(Func):
    6114    arg_types = {"this": True, "format": True, "culture": False, "zone": False}
    6115
    6116
    6117class TimeToTimeStr(Func):
    6118    pass
    6119
    6120
    6121class TimeToUnix(Func):
    6122    pass
    6123
    6124
    6125class TimeStrToDate(Func):
    6126    pass
    6127
    6128
    6129class TimeStrToTime(Func):
    6130    arg_types = {"this": True, "zone": False}
    6131
    6132
    6133class TimeStrToUnix(Func):
    6134    pass
    6135
    6136
    6137class Trim(Func):
    6138    arg_types = {
    6139        "this": True,
    6140        "expression": False,
    6141        "position": False,
    6142        "collation": False,
    6143    }
    6144
    6145
    6146class TsOrDsAdd(Func, TimeUnit):
    6147    # return_type is used to correctly cast the arguments of this expression when transpiling it
    6148    arg_types = {"this": True, "expression": True, "unit": False, "return_type": False}
    6149
    6150    @property
    6151    def return_type(self) -> DataType:
    6152        return DataType.build(self.args.get("return_type") or DataType.Type.DATE)
    6153
    6154
    6155class TsOrDsDiff(Func, TimeUnit):
    6156    arg_types = {"this": True, "expression": True, "unit": False}
    6157
    6158
    6159class TsOrDsToDateStr(Func):
    6160    pass
    6161
    6162
    6163class TsOrDsToDate(Func):
    6164    arg_types = {"this": True, "format": False, "safe": False}
    6165
    6166
    6167class TsOrDsToTime(Func):
    6168    pass
    6169
    6170
    6171class TsOrDsToTimestamp(Func):
    6172    pass
    6173
    6174
    6175class TsOrDiToDi(Func):
    6176    pass
    6177
    6178
    6179class Unhex(Func):
    6180    pass
    6181
    6182
    6183# https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions#unix_date
    6184class UnixDate(Func):
    6185    pass
    6186
    6187
    6188class UnixToStr(Func):
    6189    arg_types = {"this": True, "format": False}
    6190
    6191
    6192# https://prestodb.io/docs/current/functions/datetime.html
    6193# presto has weird zone/hours/minutes
    6194class UnixToTime(Func):
    6195    arg_types = {
    6196        "this": True,
    6197        "scale": False,
    6198        "zone": False,
    6199        "hours": False,
    6200        "minutes": False,
    6201        "format": False,
    6202    }
    6203
    6204    SECONDS = Literal.number(0)
    6205    DECIS = Literal.number(1)
    6206    CENTIS = Literal.number(2)
    6207    MILLIS = Literal.number(3)
    6208    DECIMILLIS = Literal.number(4)
    6209    CENTIMILLIS = Literal.number(5)
    6210    MICROS = Literal.number(6)
    6211    DECIMICROS = Literal.number(7)
    6212    CENTIMICROS = Literal.number(8)
    6213    NANOS = Literal.number(9)
    6214
    6215
    6216class UnixToTimeStr(Func):
    6217    pass
    6218
    6219
    6220class TimestampFromParts(Func):
    6221    _sql_names = ["TIMESTAMP_FROM_PARTS", "TIMESTAMPFROMPARTS"]
    6222    arg_types = {
    6223        "year": True,
    6224        "month": True,
    6225        "day": True,
    6226        "hour": True,
    6227        "min": True,
    6228        "sec": True,
    6229        "nano": False,
    6230        "zone": False,
    6231        "milli": False,
    6232    }
    6233
    6234
    6235class Upper(Func):
    6236    _sql_names = ["UPPER", "UCASE"]
    6237
    6238
    6239class Corr(Binary, AggFunc):
    6240    pass
    6241
    6242
    6243class Variance(AggFunc):
    6244    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
    6245
    6246
    6247class VariancePop(AggFunc):
    6248    _sql_names = ["VARIANCE_POP", "VAR_POP"]
    6249
    6250
    6251class CovarSamp(Binary, AggFunc):
    6252    pass
    6253
    6254
    6255class CovarPop(Binary, AggFunc):
    6256    pass
    6257
    6258
    6259class Week(Func):
    6260    arg_types = {"this": True, "mode": False}
    6261
    6262
    6263class XMLTable(Func):
    6264    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
    6265
    6266
    6267class Year(Func):
    6268    pass
    6269
    6270
    6271class Use(Expression):
    6272    arg_types = {"this": True, "kind": False}
    6273
    6274
    6275class Merge(Expression):
    6276    arg_types = {
    6277        "this": True,
    6278        "using": True,
    6279        "on": True,
    6280        "expressions": True,
    6281        "with": False,
    6282    }
    6283
    6284
    6285class When(Func):
    6286    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
    6287
    6288
    6289# https://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqljnextvaluefor.html
    6290# https://learn.microsoft.com/en-us/sql/t-sql/functions/next-value-for-transact-sql?view=sql-server-ver16
    6291class NextValueFor(Func):
    6292    arg_types = {"this": True, "order": False}
    6293
    6294
    6295# Refers to a trailing semi-colon. This is only used to preserve trailing comments
    6296# select 1; -- my comment
    6297class Semicolon(Expression):
    6298    arg_types = {}
    6299
    6300
    6301def _norm_arg(arg):
    6302    return arg.lower() if type(arg) is str else arg
    6303
    6304
    6305ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func))
    6306FUNCTION_BY_NAME = {name: func for func in ALL_FUNCTIONS for name in func.sql_names()}
    6307
    6308JSON_PATH_PARTS = subclasses(__name__, JSONPathPart, (JSONPathPart,))
    6309
    6310PERCENTILES = (PercentileCont, PercentileDisc)
    6311
    6312
    6313# Helpers
    6314@t.overload
    6315def maybe_parse(
    6316    sql_or_expression: ExpOrStr,
    6317    *,
    6318    into: t.Type[E],
    6319    dialect: DialectType = None,
    6320    prefix: t.Optional[str] = None,
    6321    copy: bool = False,
    6322    **opts,
    6323) -> E: ...
    6324
    6325
    6326@t.overload
    6327def maybe_parse(
    6328    sql_or_expression: str | E,
    6329    *,
    6330    into: t.Optional[IntoType] = None,
    6331    dialect: DialectType = None,
    6332    prefix: t.Optional[str] = None,
    6333    copy: bool = False,
    6334    **opts,
    6335) -> E: ...
    6336
    6337
    6338def maybe_parse(
    6339    sql_or_expression: ExpOrStr,
    6340    *,
    6341    into: t.Optional[IntoType] = None,
    6342    dialect: DialectType = None,
    6343    prefix: t.Optional[str] = None,
    6344    copy: bool = False,
    6345    **opts,
    6346) -> Expression:
    6347    """Gracefully handle a possible string or expression.
    6348
    6349    Example:
    6350        >>> maybe_parse("1")
    6351        Literal(this=1, is_string=False)
    6352        >>> maybe_parse(to_identifier("x"))
    6353        Identifier(this=x, quoted=False)
    6354
    6355    Args:
    6356        sql_or_expression: the SQL code string or an expression
    6357        into: the SQLGlot Expression to parse into
    6358        dialect: the dialect used to parse the input expressions (in the case that an
    6359            input expression is a SQL string).
    6360        prefix: a string to prefix the sql with before it gets parsed
    6361            (automatically includes a space)
    6362        copy: whether to copy the expression.
    6363        **opts: other options to use to parse the input expressions (again, in the case
    6364            that an input expression is a SQL string).
    6365
    6366    Returns:
    6367        Expression: the parsed or given expression.
    6368    """
    6369    if isinstance(sql_or_expression, Expression):
    6370        if copy:
    6371            return sql_or_expression.copy()
    6372        return sql_or_expression
    6373
    6374    if sql_or_expression is None:
    6375        raise ParseError("SQL cannot be None")
    6376
    6377    import sqlglot
    6378
    6379    sql = str(sql_or_expression)
    6380    if prefix:
    6381        sql = f"{prefix} {sql}"
    6382
    6383    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
    6384
    6385
    6386@t.overload
    6387def maybe_copy(instance: None, copy: bool = True) -> None: ...
    6388
    6389
    6390@t.overload
    6391def maybe_copy(instance: E, copy: bool = True) -> E: ...
    6392
    6393
    6394def maybe_copy(instance, copy=True):
    6395    return instance.copy() if copy and instance else instance
    6396
    6397
    6398def _to_s(node: t.Any, verbose: bool = False, level: int = 0) -> str:
    6399    """Generate a textual representation of an Expression tree"""
    6400    indent = "\n" + ("  " * (level + 1))
    6401    delim = f",{indent}"
    6402
    6403    if isinstance(node, Expression):
    6404        args = {k: v for k, v in node.args.items() if (v is not None and v != []) or verbose}
    6405
    6406        if (node.type or verbose) and not isinstance(node, DataType):
    6407            args["_type"] = node.type
    6408        if node.comments or verbose:
    6409            args["_comments"] = node.comments
    6410
    6411        if verbose:
    6412            args["_id"] = id(node)
    6413
    6414        # Inline leaves for a more compact representation
    6415        if node.is_leaf():
    6416            indent = ""
    6417            delim = ", "
    6418
    6419        items = delim.join([f"{k}={_to_s(v, verbose, level + 1)}" for k, v in args.items()])
    6420        return f"{node.__class__.__name__}({indent}{items})"
    6421
    6422    if isinstance(node, list):
    6423        items = delim.join(_to_s(i, verbose, level + 1) for i in node)
    6424        items = f"{indent}{items}" if items else ""
    6425        return f"[{items}]"
    6426
    6427    # Indent multiline strings to match the current level
    6428    return indent.join(textwrap.dedent(str(node).strip("\n")).splitlines())
    6429
    6430
    6431def _is_wrong_expression(expression, into):
    6432    return isinstance(expression, Expression) and not isinstance(expression, into)
    6433
    6434
    6435def _apply_builder(
    6436    expression,
    6437    instance,
    6438    arg,
    6439    copy=True,
    6440    prefix=None,
    6441    into=None,
    6442    dialect=None,
    6443    into_arg="this",
    6444    **opts,
    6445):
    6446    if _is_wrong_expression(expression, into):
    6447        expression = into(**{into_arg: expression})
    6448    instance = maybe_copy(instance, copy)
    6449    expression = maybe_parse(
    6450        sql_or_expression=expression,
    6451        prefix=prefix,
    6452        into=into,
    6453        dialect=dialect,
    6454        **opts,
    6455    )
    6456    instance.set(arg, expression)
    6457    return instance
    6458
    6459
    6460def _apply_child_list_builder(
    6461    *expressions,
    6462    instance,
    6463    arg,
    6464    append=True,
    6465    copy=True,
    6466    prefix=None,
    6467    into=None,
    6468    dialect=None,
    6469    properties=None,
    6470    **opts,
    6471):
    6472    instance = maybe_copy(instance, copy)
    6473    parsed = []
    6474    properties = {} if properties is None else properties
    6475
    6476    for expression in expressions:
    6477        if expression is not None:
    6478            if _is_wrong_expression(expression, into):
    6479                expression = into(expressions=[expression])
    6480
    6481            expression = maybe_parse(
    6482                expression,
    6483                into=into,
    6484                dialect=dialect,
    6485                prefix=prefix,
    6486                **opts,
    6487            )
    6488            for k, v in expression.args.items():
    6489                if k == "expressions":
    6490                    parsed.extend(v)
    6491                else:
    6492                    properties[k] = v
    6493
    6494    existing = instance.args.get(arg)
    6495    if append and existing:
    6496        parsed = existing.expressions + parsed
    6497
    6498    child = into(expressions=parsed)
    6499    for k, v in properties.items():
    6500        child.set(k, v)
    6501    instance.set(arg, child)
    6502
    6503    return instance
    6504
    6505
    6506def _apply_list_builder(
    6507    *expressions,
    6508    instance,
    6509    arg,
    6510    append=True,
    6511    copy=True,
    6512    prefix=None,
    6513    into=None,
    6514    dialect=None,
    6515    **opts,
    6516):
    6517    inst = maybe_copy(instance, copy)
    6518
    6519    expressions = [
    6520        maybe_parse(
    6521            sql_or_expression=expression,
    6522            into=into,
    6523            prefix=prefix,
    6524            dialect=dialect,
    6525            **opts,
    6526        )
    6527        for expression in expressions
    6528        if expression is not None
    6529    ]
    6530
    6531    existing_expressions = inst.args.get(arg)
    6532    if append and existing_expressions:
    6533        expressions = existing_expressions + expressions
    6534
    6535    inst.set(arg, expressions)
    6536    return inst
    6537
    6538
    6539def _apply_conjunction_builder(
    6540    *expressions,
    6541    instance,
    6542    arg,
    6543    into=None,
    6544    append=True,
    6545    copy=True,
    6546    dialect=None,
    6547    **opts,
    6548):
    6549    expressions = [exp for exp in expressions if exp is not None and exp != ""]
    6550    if not expressions:
    6551        return instance
    6552
    6553    inst = maybe_copy(instance, copy)
    6554
    6555    existing = inst.args.get(arg)
    6556    if append and existing is not None:
    6557        expressions = [existing.this if into else existing] + list(expressions)
    6558
    6559    node = and_(*expressions, dialect=dialect, copy=copy, **opts)
    6560
    6561    inst.set(arg, into(this=node) if into else node)
    6562    return inst
    6563
    6564
    6565def _apply_cte_builder(
    6566    instance: E,
    6567    alias: ExpOrStr,
    6568    as_: ExpOrStr,
    6569    recursive: t.Optional[bool] = None,
    6570    materialized: t.Optional[bool] = None,
    6571    append: bool = True,
    6572    dialect: DialectType = None,
    6573    copy: bool = True,
    6574    **opts,
    6575) -> E:
    6576    alias_expression = maybe_parse(alias, dialect=dialect, into=TableAlias, **opts)
    6577    as_expression = maybe_parse(as_, dialect=dialect, **opts)
    6578    cte = CTE(this=as_expression, alias=alias_expression, materialized=materialized)
    6579    return _apply_child_list_builder(
    6580        cte,
    6581        instance=instance,
    6582        arg="with",
    6583        append=append,
    6584        copy=copy,
    6585        into=With,
    6586        properties={"recursive": recursive or False},
    6587    )
    6588
    6589
    6590def _combine(
    6591    expressions: t.Sequence[t.Optional[ExpOrStr]],
    6592    operator: t.Type[Connector],
    6593    dialect: DialectType = None,
    6594    copy: bool = True,
    6595    **opts,
    6596) -> Expression:
    6597    conditions = [
    6598        condition(expression, dialect=dialect, copy=copy, **opts)
    6599        for expression in expressions
    6600        if expression is not None
    6601    ]
    6602
    6603    this, *rest = conditions
    6604    if rest:
    6605        this = _wrap(this, Connector)
    6606    for expression in rest:
    6607        this = operator(this=this, expression=_wrap(expression, Connector))
    6608
    6609    return this
    6610
    6611
    6612def _wrap(expression: E, kind: t.Type[Expression]) -> E | Paren:
    6613    return Paren(this=expression) if isinstance(expression, kind) else expression
    6614
    6615
    6616def union(
    6617    left: ExpOrStr,
    6618    right: ExpOrStr,
    6619    distinct: bool = True,
    6620    dialect: DialectType = None,
    6621    copy: bool = True,
    6622    **opts,
    6623) -> Union:
    6624    """
    6625    Initializes a syntax tree from one UNION expression.
    6626
    6627    Example:
    6628        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6629        'SELECT * FROM foo UNION SELECT * FROM bla'
    6630
    6631    Args:
    6632        left: the SQL code string corresponding to the left-hand side.
    6633            If an `Expression` instance is passed, it will be used as-is.
    6634        right: the SQL code string corresponding to the right-hand side.
    6635            If an `Expression` instance is passed, it will be used as-is.
    6636        distinct: set the DISTINCT flag if and only if this is true.
    6637        dialect: the dialect used to parse the input expression.
    6638        copy: whether to copy the expression.
    6639        opts: other options to use to parse the input expressions.
    6640
    6641    Returns:
    6642        The new Union instance.
    6643    """
    6644    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6645    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6646
    6647    return Union(this=left, expression=right, distinct=distinct)
    6648
    6649
    6650def intersect(
    6651    left: ExpOrStr,
    6652    right: ExpOrStr,
    6653    distinct: bool = True,
    6654    dialect: DialectType = None,
    6655    copy: bool = True,
    6656    **opts,
    6657) -> Intersect:
    6658    """
    6659    Initializes a syntax tree from one INTERSECT expression.
    6660
    6661    Example:
    6662        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6663        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    6664
    6665    Args:
    6666        left: the SQL code string corresponding to the left-hand side.
    6667            If an `Expression` instance is passed, it will be used as-is.
    6668        right: the SQL code string corresponding to the right-hand side.
    6669            If an `Expression` instance is passed, it will be used as-is.
    6670        distinct: set the DISTINCT flag if and only if this is true.
    6671        dialect: the dialect used to parse the input expression.
    6672        copy: whether to copy the expression.
    6673        opts: other options to use to parse the input expressions.
    6674
    6675    Returns:
    6676        The new Intersect instance.
    6677    """
    6678    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6679    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6680
    6681    return Intersect(this=left, expression=right, distinct=distinct)
    6682
    6683
    6684def except_(
    6685    left: ExpOrStr,
    6686    right: ExpOrStr,
    6687    distinct: bool = True,
    6688    dialect: DialectType = None,
    6689    copy: bool = True,
    6690    **opts,
    6691) -> Except:
    6692    """
    6693    Initializes a syntax tree from one EXCEPT expression.
    6694
    6695    Example:
    6696        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6697        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    6698
    6699    Args:
    6700        left: the SQL code string corresponding to the left-hand side.
    6701            If an `Expression` instance is passed, it will be used as-is.
    6702        right: the SQL code string corresponding to the right-hand side.
    6703            If an `Expression` instance is passed, it will be used as-is.
    6704        distinct: set the DISTINCT flag if and only if this is true.
    6705        dialect: the dialect used to parse the input expression.
    6706        copy: whether to copy the expression.
    6707        opts: other options to use to parse the input expressions.
    6708
    6709    Returns:
    6710        The new Except instance.
    6711    """
    6712    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6713    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6714
    6715    return Except(this=left, expression=right, distinct=distinct)
    6716
    6717
    6718def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    6719    """
    6720    Initializes a syntax tree from one or multiple SELECT expressions.
    6721
    6722    Example:
    6723        >>> select("col1", "col2").from_("tbl").sql()
    6724        'SELECT col1, col2 FROM tbl'
    6725
    6726    Args:
    6727        *expressions: the SQL code string to parse as the expressions of a
    6728            SELECT statement. If an Expression instance is passed, this is used as-is.
    6729        dialect: the dialect used to parse the input expressions (in the case that an
    6730            input expression is a SQL string).
    6731        **opts: other options to use to parse the input expressions (again, in the case
    6732            that an input expression is a SQL string).
    6733
    6734    Returns:
    6735        Select: the syntax tree for the SELECT statement.
    6736    """
    6737    return Select().select(*expressions, dialect=dialect, **opts)
    6738
    6739
    6740def from_(expression: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    6741    """
    6742    Initializes a syntax tree from a FROM expression.
    6743
    6744    Example:
    6745        >>> from_("tbl").select("col1", "col2").sql()
    6746        'SELECT col1, col2 FROM tbl'
    6747
    6748    Args:
    6749        *expression: the SQL code string to parse as the FROM expressions of a
    6750            SELECT statement. If an Expression instance is passed, this is used as-is.
    6751        dialect: the dialect used to parse the input expression (in the case that the
    6752            input expression is a SQL string).
    6753        **opts: other options to use to parse the input expressions (again, in the case
    6754            that the input expression is a SQL string).
    6755
    6756    Returns:
    6757        Select: the syntax tree for the SELECT statement.
    6758    """
    6759    return Select().from_(expression, dialect=dialect, **opts)
    6760
    6761
    6762def update(
    6763    table: str | Table,
    6764    properties: dict,
    6765    where: t.Optional[ExpOrStr] = None,
    6766    from_: t.Optional[ExpOrStr] = None,
    6767    dialect: DialectType = None,
    6768    **opts,
    6769) -> Update:
    6770    """
    6771    Creates an update statement.
    6772
    6773    Example:
    6774        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    6775        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    6776
    6777    Args:
    6778        *properties: dictionary of properties to set which are
    6779            auto converted to sql objects eg None -> NULL
    6780        where: sql conditional parsed into a WHERE statement
    6781        from_: sql statement parsed into a FROM statement
    6782        dialect: the dialect used to parse the input expressions.
    6783        **opts: other options to use to parse the input expressions.
    6784
    6785    Returns:
    6786        Update: the syntax tree for the UPDATE statement.
    6787    """
    6788    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    6789    update_expr.set(
    6790        "expressions",
    6791        [
    6792            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    6793            for k, v in properties.items()
    6794        ],
    6795    )
    6796    if from_:
    6797        update_expr.set(
    6798            "from",
    6799            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    6800        )
    6801    if isinstance(where, Condition):
    6802        where = Where(this=where)
    6803    if where:
    6804        update_expr.set(
    6805            "where",
    6806            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    6807        )
    6808    return update_expr
    6809
    6810
    6811def delete(
    6812    table: ExpOrStr,
    6813    where: t.Optional[ExpOrStr] = None,
    6814    returning: t.Optional[ExpOrStr] = None,
    6815    dialect: DialectType = None,
    6816    **opts,
    6817) -> Delete:
    6818    """
    6819    Builds a delete statement.
    6820
    6821    Example:
    6822        >>> delete("my_table", where="id > 1").sql()
    6823        'DELETE FROM my_table WHERE id > 1'
    6824
    6825    Args:
    6826        where: sql conditional parsed into a WHERE statement
    6827        returning: sql conditional parsed into a RETURNING statement
    6828        dialect: the dialect used to parse the input expressions.
    6829        **opts: other options to use to parse the input expressions.
    6830
    6831    Returns:
    6832        Delete: the syntax tree for the DELETE statement.
    6833    """
    6834    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    6835    if where:
    6836        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    6837    if returning:
    6838        delete_expr = t.cast(
    6839            Delete, delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    6840        )
    6841    return delete_expr
    6842
    6843
    6844def insert(
    6845    expression: ExpOrStr,
    6846    into: ExpOrStr,
    6847    columns: t.Optional[t.Sequence[str | Identifier]] = None,
    6848    overwrite: t.Optional[bool] = None,
    6849    returning: t.Optional[ExpOrStr] = None,
    6850    dialect: DialectType = None,
    6851    copy: bool = True,
    6852    **opts,
    6853) -> Insert:
    6854    """
    6855    Builds an INSERT statement.
    6856
    6857    Example:
    6858        >>> insert("VALUES (1, 2, 3)", "tbl").sql()
    6859        'INSERT INTO tbl VALUES (1, 2, 3)'
    6860
    6861    Args:
    6862        expression: the sql string or expression of the INSERT statement
    6863        into: the tbl to insert data to.
    6864        columns: optionally the table's column names.
    6865        overwrite: whether to INSERT OVERWRITE or not.
    6866        returning: sql conditional parsed into a RETURNING statement
    6867        dialect: the dialect used to parse the input expressions.
    6868        copy: whether to copy the expression.
    6869        **opts: other options to use to parse the input expressions.
    6870
    6871    Returns:
    6872        Insert: the syntax tree for the INSERT statement.
    6873    """
    6874    expr = maybe_parse(expression, dialect=dialect, copy=copy, **opts)
    6875    this: Table | Schema = maybe_parse(into, into=Table, dialect=dialect, copy=copy, **opts)
    6876
    6877    if columns:
    6878        this = Schema(this=this, expressions=[to_identifier(c, copy=copy) for c in columns])
    6879
    6880    insert = Insert(this=this, expression=expr, overwrite=overwrite)
    6881
    6882    if returning:
    6883        insert = t.cast(Insert, insert.returning(returning, dialect=dialect, copy=False, **opts))
    6884
    6885    return insert
    6886
    6887
    6888def condition(
    6889    expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts
    6890) -> Condition:
    6891    """
    6892    Initialize a logical condition expression.
    6893
    6894    Example:
    6895        >>> condition("x=1").sql()
    6896        'x = 1'
    6897
    6898        This is helpful for composing larger logical syntax trees:
    6899        >>> where = condition("x=1")
    6900        >>> where = where.and_("y=1")
    6901        >>> Select().from_("tbl").select("*").where(where).sql()
    6902        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    6903
    6904    Args:
    6905        *expression: the SQL code string to parse.
    6906            If an Expression instance is passed, this is used as-is.
    6907        dialect: the dialect used to parse the input expression (in the case that the
    6908            input expression is a SQL string).
    6909        copy: Whether to copy `expression` (only applies to expressions).
    6910        **opts: other options to use to parse the input expressions (again, in the case
    6911            that the input expression is a SQL string).
    6912
    6913    Returns:
    6914        The new Condition instance
    6915    """
    6916    return maybe_parse(
    6917        expression,
    6918        into=Condition,
    6919        dialect=dialect,
    6920        copy=copy,
    6921        **opts,
    6922    )
    6923
    6924
    6925def and_(
    6926    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6927) -> Condition:
    6928    """
    6929    Combine multiple conditions with an AND logical operator.
    6930
    6931    Example:
    6932        >>> and_("x=1", and_("y=1", "z=1")).sql()
    6933        'x = 1 AND (y = 1 AND z = 1)'
    6934
    6935    Args:
    6936        *expressions: the SQL code strings to parse.
    6937            If an Expression instance is passed, this is used as-is.
    6938        dialect: the dialect used to parse the input expression.
    6939        copy: whether to copy `expressions` (only applies to Expressions).
    6940        **opts: other options to use to parse the input expressions.
    6941
    6942    Returns:
    6943        The new condition
    6944    """
    6945    return t.cast(Condition, _combine(expressions, And, dialect, copy=copy, **opts))
    6946
    6947
    6948def or_(
    6949    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6950) -> Condition:
    6951    """
    6952    Combine multiple conditions with an OR logical operator.
    6953
    6954    Example:
    6955        >>> or_("x=1", or_("y=1", "z=1")).sql()
    6956        'x = 1 OR (y = 1 OR z = 1)'
    6957
    6958    Args:
    6959        *expressions: the SQL code strings to parse.
    6960            If an Expression instance is passed, this is used as-is.
    6961        dialect: the dialect used to parse the input expression.
    6962        copy: whether to copy `expressions` (only applies to Expressions).
    6963        **opts: other options to use to parse the input expressions.
    6964
    6965    Returns:
    6966        The new condition
    6967    """
    6968    return t.cast(Condition, _combine(expressions, Or, dialect, copy=copy, **opts))
    6969
    6970
    6971def xor(
    6972    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6973) -> Condition:
    6974    """
    6975    Combine multiple conditions with an XOR logical operator.
    6976
    6977    Example:
    6978        >>> xor("x=1", xor("y=1", "z=1")).sql()
    6979        'x = 1 XOR (y = 1 XOR z = 1)'
    6980
    6981    Args:
    6982        *expressions: the SQL code strings to parse.
    6983            If an Expression instance is passed, this is used as-is.
    6984        dialect: the dialect used to parse the input expression.
    6985        copy: whether to copy `expressions` (only applies to Expressions).
    6986        **opts: other options to use to parse the input expressions.
    6987
    6988    Returns:
    6989        The new condition
    6990    """
    6991    return t.cast(Condition, _combine(expressions, Xor, dialect, copy=copy, **opts))
    6992
    6993
    6994def not_(expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts) -> Not:
    6995    """
    6996    Wrap a condition with a NOT operator.
    6997
    6998    Example:
    6999        >>> not_("this_suit='black'").sql()
    7000        "NOT this_suit = 'black'"
    7001
    7002    Args:
    7003        expression: the SQL code string to parse.
    7004            If an Expression instance is passed, this is used as-is.
    7005        dialect: the dialect used to parse the input expression.
    7006        copy: whether to copy the expression or not.
    7007        **opts: other options to use to parse the input expressions.
    7008
    7009    Returns:
    7010        The new condition.
    7011    """
    7012    this = condition(
    7013        expression,
    7014        dialect=dialect,
    7015        copy=copy,
    7016        **opts,
    7017    )
    7018    return Not(this=_wrap(this, Connector))
    7019
    7020
    7021def paren(expression: ExpOrStr, copy: bool = True) -> Paren:
    7022    """
    7023    Wrap an expression in parentheses.
    7024
    7025    Example:
    7026        >>> paren("5 + 3").sql()
    7027        '(5 + 3)'
    7028
    7029    Args:
    7030        expression: the SQL code string to parse.
    7031            If an Expression instance is passed, this is used as-is.
    7032        copy: whether to copy the expression or not.
    7033
    7034    Returns:
    7035        The wrapped expression.
    7036    """
    7037    return Paren(this=maybe_parse(expression, copy=copy))
    7038
    7039
    7040SAFE_IDENTIFIER_RE: t.Pattern[str] = re.compile(r"^[_a-zA-Z][\w]*$")
    7041
    7042
    7043@t.overload
    7044def to_identifier(name: None, quoted: t.Optional[bool] = None, copy: bool = True) -> None: ...
    7045
    7046
    7047@t.overload
    7048def to_identifier(
    7049    name: str | Identifier, quoted: t.Optional[bool] = None, copy: bool = True
    7050) -> Identifier: ...
    7051
    7052
    7053def to_identifier(name, quoted=None, copy=True):
    7054    """Builds an identifier.
    7055
    7056    Args:
    7057        name: The name to turn into an identifier.
    7058        quoted: Whether to force quote the identifier.
    7059        copy: Whether to copy name if it's an Identifier.
    7060
    7061    Returns:
    7062        The identifier ast node.
    7063    """
    7064
    7065    if name is None:
    7066        return None
    7067
    7068    if isinstance(name, Identifier):
    7069        identifier = maybe_copy(name, copy)
    7070    elif isinstance(name, str):
    7071        identifier = Identifier(
    7072            this=name,
    7073            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    7074        )
    7075    else:
    7076        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    7077    return identifier
    7078
    7079
    7080def parse_identifier(name: str | Identifier, dialect: DialectType = None) -> Identifier:
    7081    """
    7082    Parses a given string into an identifier.
    7083
    7084    Args:
    7085        name: The name to parse into an identifier.
    7086        dialect: The dialect to parse against.
    7087
    7088    Returns:
    7089        The identifier ast node.
    7090    """
    7091    try:
    7092        expression = maybe_parse(name, dialect=dialect, into=Identifier)
    7093    except (ParseError, TokenError):
    7094        expression = to_identifier(name)
    7095
    7096    return expression
    7097
    7098
    7099INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*")
    7100
    7101
    7102def to_interval(interval: str | Literal) -> Interval:
    7103    """Builds an interval expression from a string like '1 day' or '5 months'."""
    7104    if isinstance(interval, Literal):
    7105        if not interval.is_string:
    7106            raise ValueError("Invalid interval string.")
    7107
    7108        interval = interval.this
    7109
    7110    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    7111
    7112    if not interval_parts:
    7113        raise ValueError("Invalid interval string.")
    7114
    7115    return Interval(
    7116        this=Literal.string(interval_parts.group(1)),
    7117        unit=Var(this=interval_parts.group(2).upper()),
    7118    )
    7119
    7120
    7121def to_table(
    7122    sql_path: str | Table, dialect: DialectType = None, copy: bool = True, **kwargs
    7123) -> Table:
    7124    """
    7125    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    7126    If a table is passed in then that table is returned.
    7127
    7128    Args:
    7129        sql_path: a `[catalog].[schema].[table]` string.
    7130        dialect: the source dialect according to which the table name will be parsed.
    7131        copy: Whether to copy a table if it is passed in.
    7132        kwargs: the kwargs to instantiate the resulting `Table` expression with.
    7133
    7134    Returns:
    7135        A table expression.
    7136    """
    7137    if isinstance(sql_path, Table):
    7138        return maybe_copy(sql_path, copy=copy)
    7139
    7140    table = maybe_parse(sql_path, into=Table, dialect=dialect)
    7141
    7142    for k, v in kwargs.items():
    7143        table.set(k, v)
    7144
    7145    return table
    7146
    7147
    7148def to_column(
    7149    sql_path: str | Column,
    7150    quoted: t.Optional[bool] = None,
    7151    dialect: DialectType = None,
    7152    copy: bool = True,
    7153    **kwargs,
    7154) -> Column:
    7155    """
    7156    Create a column from a `[table].[column]` sql path. Table is optional.
    7157    If a column is passed in then that column is returned.
    7158
    7159    Args:
    7160        sql_path: a `[table].[column]` string.
    7161        quoted: Whether or not to force quote identifiers.
    7162        dialect: the source dialect according to which the column name will be parsed.
    7163        copy: Whether to copy a column if it is passed in.
    7164        kwargs: the kwargs to instantiate the resulting `Column` expression with.
    7165
    7166    Returns:
    7167        A column expression.
    7168    """
    7169    if isinstance(sql_path, Column):
    7170        return maybe_copy(sql_path, copy=copy)
    7171
    7172    try:
    7173        col = maybe_parse(sql_path, into=Column, dialect=dialect)
    7174    except ParseError:
    7175        return column(*reversed(sql_path.split(".")), quoted=quoted, **kwargs)
    7176
    7177    for k, v in kwargs.items():
    7178        col.set(k, v)
    7179
    7180    if quoted:
    7181        for i in col.find_all(Identifier):
    7182            i.set("quoted", True)
    7183
    7184    return col
    7185
    7186
    7187def alias_(
    7188    expression: ExpOrStr,
    7189    alias: t.Optional[str | Identifier],
    7190    table: bool | t.Sequence[str | Identifier] = False,
    7191    quoted: t.Optional[bool] = None,
    7192    dialect: DialectType = None,
    7193    copy: bool = True,
    7194    **opts,
    7195):
    7196    """Create an Alias expression.
    7197
    7198    Example:
    7199        >>> alias_('foo', 'bar').sql()
    7200        'foo AS bar'
    7201
    7202        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    7203        '(SELECT 1, 2) AS bar(a, b)'
    7204
    7205    Args:
    7206        expression: the SQL code strings to parse.
    7207            If an Expression instance is passed, this is used as-is.
    7208        alias: the alias name to use. If the name has
    7209            special characters it is quoted.
    7210        table: Whether to create a table alias, can also be a list of columns.
    7211        quoted: whether to quote the alias
    7212        dialect: the dialect used to parse the input expression.
    7213        copy: Whether to copy the expression.
    7214        **opts: other options to use to parse the input expressions.
    7215
    7216    Returns:
    7217        Alias: the aliased expression
    7218    """
    7219    exp = maybe_parse(expression, dialect=dialect, copy=copy, **opts)
    7220    alias = to_identifier(alias, quoted=quoted)
    7221
    7222    if table:
    7223        table_alias = TableAlias(this=alias)
    7224        exp.set("alias", table_alias)
    7225
    7226        if not isinstance(table, bool):
    7227            for column in table:
    7228                table_alias.append("columns", to_identifier(column, quoted=quoted))
    7229
    7230        return exp
    7231
    7232    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    7233    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    7234    # for the complete Window expression.
    7235    #
    7236    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    7237
    7238    if "alias" in exp.arg_types and not isinstance(exp, Window):
    7239        exp.set("alias", alias)
    7240        return exp
    7241    return Alias(this=exp, alias=alias)
    7242
    7243
    7244def subquery(
    7245    expression: ExpOrStr,
    7246    alias: t.Optional[Identifier | str] = None,
    7247    dialect: DialectType = None,
    7248    **opts,
    7249) -> Select:
    7250    """
    7251    Build a subquery expression that's selected from.
    7252
    7253    Example:
    7254        >>> subquery('select x from tbl', 'bar').select('x').sql()
    7255        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    7256
    7257    Args:
    7258        expression: the SQL code strings to parse.
    7259            If an Expression instance is passed, this is used as-is.
    7260        alias: the alias name to use.
    7261        dialect: the dialect used to parse the input expression.
    7262        **opts: other options to use to parse the input expressions.
    7263
    7264    Returns:
    7265        A new Select instance with the subquery expression included.
    7266    """
    7267
    7268    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias, **opts)
    7269    return Select().from_(expression, dialect=dialect, **opts)
    7270
    7271
    7272@t.overload
    7273def column(
    7274    col: str | Identifier,
    7275    table: t.Optional[str | Identifier] = None,
    7276    db: t.Optional[str | Identifier] = None,
    7277    catalog: t.Optional[str | Identifier] = None,
    7278    *,
    7279    fields: t.Collection[t.Union[str, Identifier]],
    7280    quoted: t.Optional[bool] = None,
    7281    copy: bool = True,
    7282) -> Dot:
    7283    pass
    7284
    7285
    7286@t.overload
    7287def column(
    7288    col: str | Identifier,
    7289    table: t.Optional[str | Identifier] = None,
    7290    db: t.Optional[str | Identifier] = None,
    7291    catalog: t.Optional[str | Identifier] = None,
    7292    *,
    7293    fields: Lit[None] = None,
    7294    quoted: t.Optional[bool] = None,
    7295    copy: bool = True,
    7296) -> Column:
    7297    pass
    7298
    7299
    7300def column(
    7301    col,
    7302    table=None,
    7303    db=None,
    7304    catalog=None,
    7305    *,
    7306    fields=None,
    7307    quoted=None,
    7308    copy=True,
    7309):
    7310    """
    7311    Build a Column.
    7312
    7313    Args:
    7314        col: Column name.
    7315        table: Table name.
    7316        db: Database name.
    7317        catalog: Catalog name.
    7318        fields: Additional fields using dots.
    7319        quoted: Whether to force quotes on the column's identifiers.
    7320        copy: Whether to copy identifiers if passed in.
    7321
    7322    Returns:
    7323        The new Column instance.
    7324    """
    7325    this = Column(
    7326        this=to_identifier(col, quoted=quoted, copy=copy),
    7327        table=to_identifier(table, quoted=quoted, copy=copy),
    7328        db=to_identifier(db, quoted=quoted, copy=copy),
    7329        catalog=to_identifier(catalog, quoted=quoted, copy=copy),
    7330    )
    7331
    7332    if fields:
    7333        this = Dot.build(
    7334            (this, *(to_identifier(field, quoted=quoted, copy=copy) for field in fields))
    7335        )
    7336    return this
    7337
    7338
    7339def cast(
    7340    expression: ExpOrStr, to: DATA_TYPE, copy: bool = True, dialect: DialectType = None, **opts
    7341) -> Cast:
    7342    """Cast an expression to a data type.
    7343
    7344    Example:
    7345        >>> cast('x + 1', 'int').sql()
    7346        'CAST(x + 1 AS INT)'
    7347
    7348    Args:
    7349        expression: The expression to cast.
    7350        to: The datatype to cast to.
    7351        copy: Whether to copy the supplied expressions.
    7352        dialect: The target dialect. This is used to prevent a re-cast in the following scenario:
    7353            - The expression to be cast is already a exp.Cast expression
    7354            - The existing cast is to a type that is logically equivalent to new type
    7355
    7356            For example, if :expression='CAST(x as DATETIME)' and :to=Type.TIMESTAMP,
    7357            but in the target dialect DATETIME is mapped to TIMESTAMP, then we will NOT return `CAST(x (as DATETIME) as TIMESTAMP)`
    7358            and instead just return the original expression `CAST(x as DATETIME)`.
    7359
    7360            This is to prevent it being output as a double cast `CAST(x (as TIMESTAMP) as TIMESTAMP)` once the DATETIME -> TIMESTAMP
    7361            mapping is applied in the target dialect generator.
    7362
    7363    Returns:
    7364        The new Cast instance.
    7365    """
    7366    expr = maybe_parse(expression, copy=copy, dialect=dialect, **opts)
    7367    data_type = DataType.build(to, copy=copy, dialect=dialect, **opts)
    7368
    7369    # dont re-cast if the expression is already a cast to the correct type
    7370    if isinstance(expr, Cast):
    7371        from sqlglot.dialects.dialect import Dialect
    7372
    7373        target_dialect = Dialect.get_or_raise(dialect)
    7374        type_mapping = target_dialect.generator_class.TYPE_MAPPING
    7375
    7376        existing_cast_type: DataType.Type = expr.to.this
    7377        new_cast_type: DataType.Type = data_type.this
    7378        types_are_equivalent = type_mapping.get(
    7379            existing_cast_type, existing_cast_type
    7380        ) == type_mapping.get(new_cast_type, new_cast_type)
    7381        if expr.is_type(data_type) or types_are_equivalent:
    7382            return expr
    7383
    7384    expr = Cast(this=expr, to=data_type)
    7385    expr.type = data_type
    7386
    7387    return expr
    7388
    7389
    7390def table_(
    7391    table: Identifier | str,
    7392    db: t.Optional[Identifier | str] = None,
    7393    catalog: t.Optional[Identifier | str] = None,
    7394    quoted: t.Optional[bool] = None,
    7395    alias: t.Optional[Identifier | str] = None,
    7396) -> Table:
    7397    """Build a Table.
    7398
    7399    Args:
    7400        table: Table name.
    7401        db: Database name.
    7402        catalog: Catalog name.
    7403        quote: Whether to force quotes on the table's identifiers.
    7404        alias: Table's alias.
    7405
    7406    Returns:
    7407        The new Table instance.
    7408    """
    7409    return Table(
    7410        this=to_identifier(table, quoted=quoted) if table else None,
    7411        db=to_identifier(db, quoted=quoted) if db else None,
    7412        catalog=to_identifier(catalog, quoted=quoted) if catalog else None,
    7413        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    7414    )
    7415
    7416
    7417def values(
    7418    values: t.Iterable[t.Tuple[t.Any, ...]],
    7419    alias: t.Optional[str] = None,
    7420    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    7421) -> Values:
    7422    """Build VALUES statement.
    7423
    7424    Example:
    7425        >>> values([(1, '2')]).sql()
    7426        "VALUES (1, '2')"
    7427
    7428    Args:
    7429        values: values statements that will be converted to SQL
    7430        alias: optional alias
    7431        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    7432         If either are provided then an alias is also required.
    7433
    7434    Returns:
    7435        Values: the Values expression object
    7436    """
    7437    if columns and not alias:
    7438        raise ValueError("Alias is required when providing columns")
    7439
    7440    return Values(
    7441        expressions=[convert(tup) for tup in values],
    7442        alias=(
    7443            TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    7444            if columns
    7445            else (TableAlias(this=to_identifier(alias)) if alias else None)
    7446        ),
    7447    )
    7448
    7449
    7450def var(name: t.Optional[ExpOrStr]) -> Var:
    7451    """Build a SQL variable.
    7452
    7453    Example:
    7454        >>> repr(var('x'))
    7455        'Var(this=x)'
    7456
    7457        >>> repr(var(column('x', table='y')))
    7458        'Var(this=x)'
    7459
    7460    Args:
    7461        name: The name of the var or an expression who's name will become the var.
    7462
    7463    Returns:
    7464        The new variable node.
    7465    """
    7466    if not name:
    7467        raise ValueError("Cannot convert empty name into var.")
    7468
    7469    if isinstance(name, Expression):
    7470        name = name.name
    7471    return Var(this=name)
    7472
    7473
    7474def rename_table(
    7475    old_name: str | Table,
    7476    new_name: str | Table,
    7477    dialect: DialectType = None,
    7478) -> Alter:
    7479    """Build ALTER TABLE... RENAME... expression
    7480
    7481    Args:
    7482        old_name: The old name of the table
    7483        new_name: The new name of the table
    7484        dialect: The dialect to parse the table.
    7485
    7486    Returns:
    7487        Alter table expression
    7488    """
    7489    old_table = to_table(old_name, dialect=dialect)
    7490    new_table = to_table(new_name, dialect=dialect)
    7491    return Alter(
    7492        this=old_table,
    7493        kind="TABLE",
    7494        actions=[
    7495            RenameTable(this=new_table),
    7496        ],
    7497    )
    7498
    7499
    7500def rename_column(
    7501    table_name: str | Table,
    7502    old_column_name: str | Column,
    7503    new_column_name: str | Column,
    7504    exists: t.Optional[bool] = None,
    7505    dialect: DialectType = None,
    7506) -> Alter:
    7507    """Build ALTER TABLE... RENAME COLUMN... expression
    7508
    7509    Args:
    7510        table_name: Name of the table
    7511        old_column: The old name of the column
    7512        new_column: The new name of the column
    7513        exists: Whether to add the `IF EXISTS` clause
    7514        dialect: The dialect to parse the table/column.
    7515
    7516    Returns:
    7517        Alter table expression
    7518    """
    7519    table = to_table(table_name, dialect=dialect)
    7520    old_column = to_column(old_column_name, dialect=dialect)
    7521    new_column = to_column(new_column_name, dialect=dialect)
    7522    return Alter(
    7523        this=table,
    7524        kind="TABLE",
    7525        actions=[
    7526            RenameColumn(this=old_column, to=new_column, exists=exists),
    7527        ],
    7528    )
    7529
    7530
    7531def convert(value: t.Any, copy: bool = False) -> Expression:
    7532    """Convert a python value into an expression object.
    7533
    7534    Raises an error if a conversion is not possible.
    7535
    7536    Args:
    7537        value: A python object.
    7538        copy: Whether to copy `value` (only applies to Expressions and collections).
    7539
    7540    Returns:
    7541        The equivalent expression object.
    7542    """
    7543    if isinstance(value, Expression):
    7544        return maybe_copy(value, copy)
    7545    if isinstance(value, str):
    7546        return Literal.string(value)
    7547    if isinstance(value, bool):
    7548        return Boolean(this=value)
    7549    if value is None or (isinstance(value, float) and math.isnan(value)):
    7550        return null()
    7551    if isinstance(value, numbers.Number):
    7552        return Literal.number(value)
    7553    if isinstance(value, bytes):
    7554        return HexString(this=value.hex())
    7555    if isinstance(value, datetime.datetime):
    7556        datetime_literal = Literal.string(value.isoformat(sep=" "))
    7557
    7558        tz = None
    7559        if value.tzinfo:
    7560            # this works for zoneinfo.ZoneInfo, pytz.timezone and datetime.datetime.utc to return IANA timezone names like "America/Los_Angeles"
    7561            # instead of abbreviations like "PDT". This is for consistency with other timezone handling functions in SQLGlot
    7562            tz = Literal.string(str(value.tzinfo))
    7563
    7564        return TimeStrToTime(this=datetime_literal, zone=tz)
    7565    if isinstance(value, datetime.date):
    7566        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    7567        return DateStrToDate(this=date_literal)
    7568    if isinstance(value, tuple):
    7569        if hasattr(value, "_fields"):
    7570            return Struct(
    7571                expressions=[
    7572                    PropertyEQ(
    7573                        this=to_identifier(k), expression=convert(getattr(value, k), copy=copy)
    7574                    )
    7575                    for k in value._fields
    7576                ]
    7577            )
    7578        return Tuple(expressions=[convert(v, copy=copy) for v in value])
    7579    if isinstance(value, list):
    7580        return Array(expressions=[convert(v, copy=copy) for v in value])
    7581    if isinstance(value, dict):
    7582        return Map(
    7583            keys=Array(expressions=[convert(k, copy=copy) for k in value]),
    7584            values=Array(expressions=[convert(v, copy=copy) for v in value.values()]),
    7585        )
    7586    if hasattr(value, "__dict__"):
    7587        return Struct(
    7588            expressions=[
    7589                PropertyEQ(this=to_identifier(k), expression=convert(v, copy=copy))
    7590                for k, v in value.__dict__.items()
    7591            ]
    7592        )
    7593    raise ValueError(f"Cannot convert {value}")
    7594
    7595
    7596def replace_children(expression: Expression, fun: t.Callable, *args, **kwargs) -> None:
    7597    """
    7598    Replace children of an expression with the result of a lambda fun(child) -> exp.
    7599    """
    7600    for k, v in tuple(expression.args.items()):
    7601        is_list_arg = type(v) is list
    7602
    7603        child_nodes = v if is_list_arg else [v]
    7604        new_child_nodes = []
    7605
    7606        for cn in child_nodes:
    7607            if isinstance(cn, Expression):
    7608                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    7609                    new_child_nodes.append(child_node)
    7610            else:
    7611                new_child_nodes.append(cn)
    7612
    7613        expression.set(k, new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0))
    7614
    7615
    7616def replace_tree(
    7617    expression: Expression,
    7618    fun: t.Callable,
    7619    prune: t.Optional[t.Callable[[Expression], bool]] = None,
    7620) -> Expression:
    7621    """
    7622    Replace an entire tree with the result of function calls on each node.
    7623
    7624    This will be traversed in reverse dfs, so leaves first.
    7625    If new nodes are created as a result of function calls, they will also be traversed.
    7626    """
    7627    stack = list(expression.dfs(prune=prune))
    7628
    7629    while stack:
    7630        node = stack.pop()
    7631        new_node = fun(node)
    7632
    7633        if new_node is not node:
    7634            node.replace(new_node)
    7635
    7636            if isinstance(new_node, Expression):
    7637                stack.append(new_node)
    7638
    7639    return new_node
    7640
    7641
    7642def column_table_names(expression: Expression, exclude: str = "") -> t.Set[str]:
    7643    """
    7644    Return all table names referenced through columns in an expression.
    7645
    7646    Example:
    7647        >>> import sqlglot
    7648        >>> sorted(column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")))
    7649        ['a', 'c']
    7650
    7651    Args:
    7652        expression: expression to find table names.
    7653        exclude: a table name to exclude
    7654
    7655    Returns:
    7656        A list of unique names.
    7657    """
    7658    return {
    7659        table
    7660        for table in (column.table for column in expression.find_all(Column))
    7661        if table and table != exclude
    7662    }
    7663
    7664
    7665def table_name(table: Table | str, dialect: DialectType = None, identify: bool = False) -> str:
    7666    """Get the full name of a table as a string.
    7667
    7668    Args:
    7669        table: Table expression node or string.
    7670        dialect: The dialect to generate the table name for.
    7671        identify: Determines when an identifier should be quoted. Possible values are:
    7672            False (default): Never quote, except in cases where it's mandatory by the dialect.
    7673            True: Always quote.
    7674
    7675    Examples:
    7676        >>> from sqlglot import exp, parse_one
    7677        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    7678        'a.b.c'
    7679
    7680    Returns:
    7681        The table name.
    7682    """
    7683
    7684    table = maybe_parse(table, into=Table, dialect=dialect)
    7685
    7686    if not table:
    7687        raise ValueError(f"Cannot parse {table}")
    7688
    7689    return ".".join(
    7690        (
    7691            part.sql(dialect=dialect, identify=True, copy=False)
    7692            if identify or not SAFE_IDENTIFIER_RE.match(part.name)
    7693            else part.name
    7694        )
    7695        for part in table.parts
    7696    )
    7697
    7698
    7699def normalize_table_name(table: str | Table, dialect: DialectType = None, copy: bool = True) -> str:
    7700    """Returns a case normalized table name without quotes.
    7701
    7702    Args:
    7703        table: the table to normalize
    7704        dialect: the dialect to use for normalization rules
    7705        copy: whether to copy the expression.
    7706
    7707    Examples:
    7708        >>> normalize_table_name("`A-B`.c", dialect="bigquery")
    7709        'A-B.c'
    7710    """
    7711    from sqlglot.optimizer.normalize_identifiers import normalize_identifiers
    7712
    7713    return ".".join(
    7714        p.name
    7715        for p in normalize_identifiers(
    7716            to_table(table, dialect=dialect, copy=copy), dialect=dialect
    7717        ).parts
    7718    )
    7719
    7720
    7721def replace_tables(
    7722    expression: E, mapping: t.Dict[str, str], dialect: DialectType = None, copy: bool = True
    7723) -> E:
    7724    """Replace all tables in expression according to the mapping.
    7725
    7726    Args:
    7727        expression: expression node to be transformed and replaced.
    7728        mapping: mapping of table names.
    7729        dialect: the dialect of the mapping table
    7730        copy: whether to copy the expression.
    7731
    7732    Examples:
    7733        >>> from sqlglot import exp, parse_one
    7734        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    7735        'SELECT * FROM c /* a.b */'
    7736
    7737    Returns:
    7738        The mapped expression.
    7739    """
    7740
    7741    mapping = {normalize_table_name(k, dialect=dialect): v for k, v in mapping.items()}
    7742
    7743    def _replace_tables(node: Expression) -> Expression:
    7744        if isinstance(node, Table):
    7745            original = normalize_table_name(node, dialect=dialect)
    7746            new_name = mapping.get(original)
    7747
    7748            if new_name:
    7749                table = to_table(
    7750                    new_name,
    7751                    **{k: v for k, v in node.args.items() if k not in TABLE_PARTS},
    7752                    dialect=dialect,
    7753                )
    7754                table.add_comments([original])
    7755                return table
    7756        return node
    7757
    7758    return expression.transform(_replace_tables, copy=copy)  # type: ignore
    7759
    7760
    7761def replace_placeholders(expression: Expression, *args, **kwargs) -> Expression:
    7762    """Replace placeholders in an expression.
    7763
    7764    Args:
    7765        expression: expression node to be transformed and replaced.
    7766        args: positional names that will substitute unnamed placeholders in the given order.
    7767        kwargs: keyword arguments that will substitute named placeholders.
    7768
    7769    Examples:
    7770        >>> from sqlglot import exp, parse_one
    7771        >>> replace_placeholders(
    7772        ...     parse_one("select * from :tbl where ? = ?"),
    7773        ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
    7774        ... ).sql()
    7775        "SELECT * FROM foo WHERE str_col = 'b'"
    7776
    7777    Returns:
    7778        The mapped expression.
    7779    """
    7780
    7781    def _replace_placeholders(node: Expression, args, **kwargs) -> Expression:
    7782        if isinstance(node, Placeholder):
    7783            if node.this:
    7784                new_name = kwargs.get(node.this)
    7785                if new_name is not None:
    7786                    return convert(new_name)
    7787            else:
    7788                try:
    7789                    return convert(next(args))
    7790                except StopIteration:
    7791                    pass
    7792        return node
    7793
    7794    return expression.transform(_replace_placeholders, iter(args), **kwargs)
    7795
    7796
    7797def expand(
    7798    expression: Expression,
    7799    sources: t.Dict[str, Query],
    7800    dialect: DialectType = None,
    7801    copy: bool = True,
    7802) -> Expression:
    7803    """Transforms an expression by expanding all referenced sources into subqueries.
    7804
    7805    Examples:
    7806        >>> from sqlglot import parse_one
    7807        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    7808        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    7809
    7810        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()
    7811        'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'
    7812
    7813    Args:
    7814        expression: The expression to expand.
    7815        sources: A dictionary of name to Queries.
    7816        dialect: The dialect of the sources dict.
    7817        copy: Whether to copy the expression during transformation. Defaults to True.
    7818
    7819    Returns:
    7820        The transformed expression.
    7821    """
    7822    sources = {normalize_table_name(k, dialect=dialect): v for k, v in sources.items()}
    7823
    7824    def _expand(node: Expression):
    7825        if isinstance(node, Table):
    7826            name = normalize_table_name(node, dialect=dialect)
    7827            source = sources.get(name)
    7828            if source:
    7829                subquery = source.subquery(node.alias or name)
    7830                subquery.comments = [f"source: {name}"]
    7831                return subquery.transform(_expand, copy=False)
    7832        return node
    7833
    7834    return expression.transform(_expand, copy=copy)
    7835
    7836
    7837def func(name: str, *args, copy: bool = True, dialect: DialectType = None, **kwargs) -> Func:
    7838    """
    7839    Returns a Func expression.
    7840
    7841    Examples:
    7842        >>> func("abs", 5).sql()
    7843        'ABS(5)'
    7844
    7845        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    7846        'CAST(5 AS DOUBLE)'
    7847
    7848    Args:
    7849        name: the name of the function to build.
    7850        args: the args used to instantiate the function of interest.
    7851        copy: whether to copy the argument expressions.
    7852        dialect: the source dialect.
    7853        kwargs: the kwargs used to instantiate the function of interest.
    7854
    7855    Note:
    7856        The arguments `args` and `kwargs` are mutually exclusive.
    7857
    7858    Returns:
    7859        An instance of the function of interest, or an anonymous function, if `name` doesn't
    7860        correspond to an existing `sqlglot.expressions.Func` class.
    7861    """
    7862    if args and kwargs:
    7863        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    7864
    7865    from sqlglot.dialects.dialect import Dialect
    7866
    7867    dialect = Dialect.get_or_raise(dialect)
    7868
    7869    converted: t.List[Expression] = [maybe_parse(arg, dialect=dialect, copy=copy) for arg in args]
    7870    kwargs = {key: maybe_parse(value, dialect=dialect, copy=copy) for key, value in kwargs.items()}
    7871
    7872    constructor = dialect.parser_class.FUNCTIONS.get(name.upper())
    7873    if constructor:
    7874        if converted:
    7875            if "dialect" in constructor.__code__.co_varnames:
    7876                function = constructor(converted, dialect=dialect)
    7877            else:
    7878                function = constructor(converted)
    7879        elif constructor.__name__ == "from_arg_list":
    7880            function = constructor.__self__(**kwargs)  # type: ignore
    7881        else:
    7882            constructor = FUNCTION_BY_NAME.get(name.upper())
    7883            if constructor:
    7884                function = constructor(**kwargs)
    7885            else:
    7886                raise ValueError(
    7887                    f"Unable to convert '{name}' into a Func. Either manually construct "
    7888                    "the Func expression of interest or parse the function call."
    7889                )
    7890    else:
    7891        kwargs = kwargs or {"expressions": converted}
    7892        function = Anonymous(this=name, **kwargs)
    7893
    7894    for error_message in function.error_messages(converted):
    7895        raise ValueError(error_message)
    7896
    7897    return function
    7898
    7899
    7900def case(
    7901    expression: t.Optional[ExpOrStr] = None,
    7902    **opts,
    7903) -> Case:
    7904    """
    7905    Initialize a CASE statement.
    7906
    7907    Example:
    7908        case().when("a = 1", "foo").else_("bar")
    7909
    7910    Args:
    7911        expression: Optionally, the input expression (not all dialects support this)
    7912        **opts: Extra keyword arguments for parsing `expression`
    7913    """
    7914    if expression is not None:
    7915        this = maybe_parse(expression, **opts)
    7916    else:
    7917        this = None
    7918    return Case(this=this, ifs=[])
    7919
    7920
    7921def array(
    7922    *expressions: ExpOrStr, copy: bool = True, dialect: DialectType = None, **kwargs
    7923) -> Array:
    7924    """
    7925    Returns an array.
    7926
    7927    Examples:
    7928        >>> array(1, 'x').sql()
    7929        'ARRAY(1, x)'
    7930
    7931    Args:
    7932        expressions: the expressions to add to the array.
    7933        copy: whether to copy the argument expressions.
    7934        dialect: the source dialect.
    7935        kwargs: the kwargs used to instantiate the function of interest.
    7936
    7937    Returns:
    7938        An array expression.
    7939    """
    7940    return Array(
    7941        expressions=[
    7942            maybe_parse(expression, copy=copy, dialect=dialect, **kwargs)
    7943            for expression in expressions
    7944        ]
    7945    )
    7946
    7947
    7948def tuple_(
    7949    *expressions: ExpOrStr, copy: bool = True, dialect: DialectType = None, **kwargs
    7950) -> Tuple:
    7951    """
    7952    Returns an tuple.
    7953
    7954    Examples:
    7955        >>> tuple_(1, 'x').sql()
    7956        '(1, x)'
    7957
    7958    Args:
    7959        expressions: the expressions to add to the tuple.
    7960        copy: whether to copy the argument expressions.
    7961        dialect: the source dialect.
    7962        kwargs: the kwargs used to instantiate the function of interest.
    7963
    7964    Returns:
    7965        A tuple expression.
    7966    """
    7967    return Tuple(
    7968        expressions=[
    7969            maybe_parse(expression, copy=copy, dialect=dialect, **kwargs)
    7970            for expression in expressions
    7971        ]
    7972    )
    7973
    7974
    7975def true() -> Boolean:
    7976    """
    7977    Returns a true Boolean expression.
    7978    """
    7979    return Boolean(this=True)
    7980
    7981
    7982def false() -> Boolean:
    7983    """
    7984    Returns a false Boolean expression.
    7985    """
    7986    return Boolean(this=False)
    7987
    7988
    7989def null() -> Null:
    7990    """
    7991    Returns a Null expression.
    7992    """
    7993    return Null()
    7994
    7995
    7996NONNULL_CONSTANTS = (
    7997    Literal,
    7998    Boolean,
    7999)
    8000
    8001CONSTANTS = (
    8002    Literal,
    8003    Boolean,
    8004    Null,
    8005)

SQLGLOT_META = 'sqlglot.meta'
TABLE_PARTS = ('this', 'db', 'catalog')
COLUMN_PARTS = ('this', 'table', 'db', 'catalog')
class Expression: View Source

      66class Expression(metaclass=_Expression):
      67    """
      68    The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary
      69    context, such as its child expressions, their names (arg keys), and whether a given child expression
      70    is optional or not.
      71
      72    Attributes:
      73        key: a unique key for each class in the Expression hierarchy. This is useful for hashing
      74            and representing expressions as strings.
      75        arg_types: determines the arguments (child nodes) supported by an expression. It maps
      76            arg keys to booleans that indicate whether the corresponding args are optional.
      77        parent: a reference to the parent expression (or None, in case of root expressions).
      78        arg_key: the arg key an expression is associated with, i.e. the name its parent expression
      79            uses to refer to it.
      80        index: the index of an expression if it is inside of a list argument in its parent.
      81        comments: a list of comments that are associated with a given expression. This is used in
      82            order to preserve comments when transpiling SQL code.
      83        type: the `sqlglot.expressions.DataType` type of an expression. This is inferred by the
      84            optimizer, in order to enable some transformations that require type information.
      85        meta: a dictionary that can be used to store useful metadata for a given expression.
      86
      87    Example:
      88        >>> class Foo(Expression):
      89        ...     arg_types = {"this": True, "expression": False}
      90
      91        The above definition informs us that Foo is an Expression that requires an argument called
      92        "this" and may also optionally receive an argument called "expression".
      93
      94    Args:
      95        args: a mapping used for retrieving the arguments of an expression, given their arg keys.
      96    """
      97
      98    key = "expression"
      99    arg_types = {"this": True}
     100    __slots__ = ("args", "parent", "arg_key", "index", "comments", "_type", "_meta", "_hash")
     101
     102    def __init__(self, **args: t.Any):
     103        self.args: t.Dict[str, t.Any] = args
     104        self.parent: t.Optional[Expression] = None
     105        self.arg_key: t.Optional[str] = None
     106        self.index: t.Optional[int] = None
     107        self.comments: t.Optional[t.List[str]] = None
     108        self._type: t.Optional[DataType] = None
     109        self._meta: t.Optional[t.Dict[str, t.Any]] = None
     110        self._hash: t.Optional[int] = None
     111
     112        for arg_key, value in self.args.items():
     113            self._set_parent(arg_key, value)
     114
     115    def __eq__(self, other) -> bool:
     116        return type(self) is type(other) and hash(self) == hash(other)
     117
     118    @property
     119    def hashable_args(self) -> t.Any:
     120        return frozenset(
     121            (k, tuple(_norm_arg(a) for a in v) if type(v) is list else _norm_arg(v))
     122            for k, v in self.args.items()
     123            if not (v is None or v is False or (type(v) is list and not v))
     124        )
     125
     126    def __hash__(self) -> int:
     127        if self._hash is not None:
     128            return self._hash
     129
     130        return hash((self.__class__, self.hashable_args))
     131
     132    @property
     133    def this(self) -> t.Any:
     134        """
     135        Retrieves the argument with key "this".
     136        """
     137        return self.args.get("this")
     138
     139    @property
     140    def expression(self) -> t.Any:
     141        """
     142        Retrieves the argument with key "expression".
     143        """
     144        return self.args.get("expression")
     145
     146    @property
     147    def expressions(self) -> t.List[t.Any]:
     148        """
     149        Retrieves the argument with key "expressions".
     150        """
     151        return self.args.get("expressions") or []
     152
     153    def text(self, key) -> str:
     154        """
     155        Returns a textual representation of the argument corresponding to "key". This can only be used
     156        for args that are strings or leaf Expression instances, such as identifiers and literals.
     157        """
     158        field = self.args.get(key)
     159        if isinstance(field, str):
     160            return field
     161        if isinstance(field, (Identifier, Literal, Var)):
     162            return field.this
     163        if isinstance(field, (Star, Null)):
     164            return field.name
     165        return ""
     166
     167    @property
     168    def is_string(self) -> bool:
     169        """
     170        Checks whether a Literal expression is a string.
     171        """
     172        return isinstance(self, Literal) and self.args["is_string"]
     173
     174    @property
     175    def is_number(self) -> bool:
     176        """
     177        Checks whether a Literal expression is a number.
     178        """
     179        return (isinstance(self, Literal) and not self.args["is_string"]) or (
     180            isinstance(self, Neg) and self.this.is_number
     181        )
     182
     183    def to_py(self) -> t.Any:
     184        """
     185        Returns a Python object equivalent of the SQL node.
     186        """
     187        raise ValueError(f"{self} cannot be converted to a Python object.")
     188
     189    @property
     190    def is_int(self) -> bool:
     191        """
     192        Checks whether an expression is an integer.
     193        """
     194        return self.is_number and isinstance(self.to_py(), int)
     195
     196    @property
     197    def is_star(self) -> bool:
     198        """Checks whether an expression is a star."""
     199        return isinstance(self, Star) or (isinstance(self, Column) and isinstance(self.this, Star))
     200
     201    @property
     202    def alias(self) -> str:
     203        """
     204        Returns the alias of the expression, or an empty string if it's not aliased.
     205        """
     206        if isinstance(self.args.get("alias"), TableAlias):
     207            return self.args["alias"].name
     208        return self.text("alias")
     209
     210    @property
     211    def alias_column_names(self) -> t.List[str]:
     212        table_alias = self.args.get("alias")
     213        if not table_alias:
     214            return []
     215        return [c.name for c in table_alias.args.get("columns") or []]
     216
     217    @property
     218    def name(self) -> str:
     219        return self.text("this")
     220
     221    @property
     222    def alias_or_name(self) -> str:
     223        return self.alias or self.name
     224
     225    @property
     226    def output_name(self) -> str:
     227        """
     228        Name of the output column if this expression is a selection.
     229
     230        If the Expression has no output name, an empty string is returned.
     231
     232        Example:
     233            >>> from sqlglot import parse_one
     234            >>> parse_one("SELECT a").expressions[0].output_name
     235            'a'
     236            >>> parse_one("SELECT b AS c").expressions[0].output_name
     237            'c'
     238            >>> parse_one("SELECT 1 + 2").expressions[0].output_name
     239            ''
     240        """
     241        return ""
     242
     243    @property
     244    def type(self) -> t.Optional[DataType]:
     245        return self._type
     246
     247    @type.setter
     248    def type(self, dtype: t.Optional[DataType | DataType.Type | str]) -> None:
     249        if dtype and not isinstance(dtype, DataType):
     250            dtype = DataType.build(dtype)
     251        self._type = dtype  # type: ignore
     252
     253    def is_type(self, *dtypes) -> bool:
     254        return self.type is not None and self.type.is_type(*dtypes)
     255
     256    def is_leaf(self) -> bool:
     257        return not any(isinstance(v, (Expression, list)) for v in self.args.values())
     258
     259    @property
     260    def meta(self) -> t.Dict[str, t.Any]:
     261        if self._meta is None:
     262            self._meta = {}
     263        return self._meta
     264
     265    def __deepcopy__(self, memo):
     266        root = self.__class__()
     267        stack = [(self, root)]
     268
     269        while stack:
     270            node, copy = stack.pop()
     271
     272            if node.comments is not None:
     273                copy.comments = deepcopy(node.comments)
     274            if node._type is not None:
     275                copy._type = deepcopy(node._type)
     276            if node._meta is not None:
     277                copy._meta = deepcopy(node._meta)
     278            if node._hash is not None:
     279                copy._hash = node._hash
     280
     281            for k, vs in node.args.items():
     282                if hasattr(vs, "parent"):
     283                    stack.append((vs, vs.__class__()))
     284                    copy.set(k, stack[-1][-1])
     285                elif type(vs) is list:
     286                    copy.args[k] = []
     287
     288                    for v in vs:
     289                        if hasattr(v, "parent"):
     290                            stack.append((v, v.__class__()))
     291                            copy.append(k, stack[-1][-1])
     292                        else:
     293                            copy.append(k, v)
     294                else:
     295                    copy.args[k] = vs
     296
     297        return root
     298
     299    def copy(self):
     300        """
     301        Returns a deep copy of the expression.
     302        """
     303        return deepcopy(self)
     304
     305    def add_comments(self, comments: t.Optional[t.List[str]] = None) -> None:
     306        if self.comments is None:
     307            self.comments = []
     308
     309        if comments:
     310            for comment in comments:
     311                _, *meta = comment.split(SQLGLOT_META)
     312                if meta:
     313                    for kv in "".join(meta).split(","):
     314                        k, *v = kv.split("=")
     315                        value = v[0].strip() if v else True
     316                        self.meta[k.strip()] = value
     317                self.comments.append(comment)
     318
     319    def pop_comments(self) -> t.List[str]:
     320        comments = self.comments or []
     321        self.comments = None
     322        return comments
     323
     324    def append(self, arg_key: str, value: t.Any) -> None:
     325        """
     326        Appends value to arg_key if it's a list or sets it as a new list.
     327
     328        Args:
     329            arg_key (str): name of the list expression arg
     330            value (Any): value to append to the list
     331        """
     332        if type(self.args.get(arg_key)) is not list:
     333            self.args[arg_key] = []
     334        self._set_parent(arg_key, value)
     335        values = self.args[arg_key]
     336        if hasattr(value, "parent"):
     337            value.index = len(values)
     338        values.append(value)
     339
     340    def set(
     341        self,
     342        arg_key: str,
     343        value: t.Any,
     344        index: t.Optional[int] = None,
     345        overwrite: bool = True,
     346    ) -> None:
     347        """
     348        Sets arg_key to value.
     349
     350        Args:
     351            arg_key: name of the expression arg.
     352            value: value to set the arg to.
     353            index: if the arg is a list, this specifies what position to add the value in it.
     354            overwrite: assuming an index is given, this determines whether to overwrite the
     355                list entry instead of only inserting a new value (i.e., like list.insert).
     356        """
     357        if index is not None:
     358            expressions = self.args.get(arg_key) or []
     359
     360            if seq_get(expressions, index) is None:
     361                return
     362            if value is None:
     363                expressions.pop(index)
     364                for v in expressions[index:]:
     365                    v.index = v.index - 1
     366                return
     367
     368            if isinstance(value, list):
     369                expressions.pop(index)
     370                expressions[index:index] = value
     371            elif overwrite:
     372                expressions[index] = value
     373            else:
     374                expressions.insert(index, value)
     375
     376            value = expressions
     377        elif value is None:
     378            self.args.pop(arg_key, None)
     379            return
     380
     381        self.args[arg_key] = value
     382        self._set_parent(arg_key, value, index)
     383
     384    def _set_parent(self, arg_key: str, value: t.Any, index: t.Optional[int] = None) -> None:
     385        if hasattr(value, "parent"):
     386            value.parent = self
     387            value.arg_key = arg_key
     388            value.index = index
     389        elif type(value) is list:
     390            for index, v in enumerate(value):
     391                if hasattr(v, "parent"):
     392                    v.parent = self
     393                    v.arg_key = arg_key
     394                    v.index = index
     395
     396    @property
     397    def depth(self) -> int:
     398        """
     399        Returns the depth of this tree.
     400        """
     401        if self.parent:
     402            return self.parent.depth + 1
     403        return 0
     404
     405    def iter_expressions(self, reverse: bool = False) -> t.Iterator[Expression]:
     406        """Yields the key and expression for all arguments, exploding list args."""
     407        # remove tuple when python 3.7 is deprecated
     408        for vs in reversed(tuple(self.args.values())) if reverse else self.args.values():
     409            if type(vs) is list:
     410                for v in reversed(vs) if reverse else vs:
     411                    if hasattr(v, "parent"):
     412                        yield v
     413            else:
     414                if hasattr(vs, "parent"):
     415                    yield vs
     416
     417    def find(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Optional[E]:
     418        """
     419        Returns the first node in this tree which matches at least one of
     420        the specified types.
     421
     422        Args:
     423            expression_types: the expression type(s) to match.
     424            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
     425
     426        Returns:
     427            The node which matches the criteria or None if no such node was found.
     428        """
     429        return next(self.find_all(*expression_types, bfs=bfs), None)
     430
     431    def find_all(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Iterator[E]:
     432        """
     433        Returns a generator object which visits all nodes in this tree and only
     434        yields those that match at least one of the specified expression types.
     435
     436        Args:
     437            expression_types: the expression type(s) to match.
     438            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
     439
     440        Returns:
     441            The generator object.
     442        """
     443        for expression in self.walk(bfs=bfs):
     444            if isinstance(expression, expression_types):
     445                yield expression
     446
     447    def find_ancestor(self, *expression_types: t.Type[E]) -> t.Optional[E]:
     448        """
     449        Returns a nearest parent matching expression_types.
     450
     451        Args:
     452            expression_types: the expression type(s) to match.
     453
     454        Returns:
     455            The parent node.
     456        """
     457        ancestor = self.parent
     458        while ancestor and not isinstance(ancestor, expression_types):
     459            ancestor = ancestor.parent
     460        return ancestor  # type: ignore
     461
     462    @property
     463    def parent_select(self) -> t.Optional[Select]:
     464        """
     465        Returns the parent select statement.
     466        """
     467        return self.find_ancestor(Select)
     468
     469    @property
     470    def same_parent(self) -> bool:
     471        """Returns if the parent is the same class as itself."""
     472        return type(self.parent) is self.__class__
     473
     474    def root(self) -> Expression:
     475        """
     476        Returns the root expression of this tree.
     477        """
     478        expression = self
     479        while expression.parent:
     480            expression = expression.parent
     481        return expression
     482
     483    def walk(
     484        self, bfs: bool = True, prune: t.Optional[t.Callable[[Expression], bool]] = None
     485    ) -> t.Iterator[Expression]:
     486        """
     487        Returns a generator object which visits all nodes in this tree.
     488
     489        Args:
     490            bfs: if set to True the BFS traversal order will be applied,
     491                otherwise the DFS traversal will be used instead.
     492            prune: callable that returns True if the generator should stop traversing
     493                this branch of the tree.
     494
     495        Returns:
     496            the generator object.
     497        """
     498        if bfs:
     499            yield from self.bfs(prune=prune)
     500        else:
     501            yield from self.dfs(prune=prune)
     502
     503    def dfs(
     504        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
     505    ) -> t.Iterator[Expression]:
     506        """
     507        Returns a generator object which visits all nodes in this tree in
     508        the DFS (Depth-first) order.
     509
     510        Returns:
     511            The generator object.
     512        """
     513        stack = [self]
     514
     515        while stack:
     516            node = stack.pop()
     517
     518            yield node
     519
     520            if prune and prune(node):
     521                continue
     522
     523            for v in node.iter_expressions(reverse=True):
     524                stack.append(v)
     525
     526    def bfs(
     527        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
     528    ) -> t.Iterator[Expression]:
     529        """
     530        Returns a generator object which visits all nodes in this tree in
     531        the BFS (Breadth-first) order.
     532
     533        Returns:
     534            The generator object.
     535        """
     536        queue = deque([self])
     537
     538        while queue:
     539            node = queue.popleft()
     540
     541            yield node
     542
     543            if prune and prune(node):
     544                continue
     545
     546            for v in node.iter_expressions():
     547                queue.append(v)
     548
     549    def unnest(self):
     550        """
     551        Returns the first non parenthesis child or self.
     552        """
     553        expression = self
     554        while type(expression) is Paren:
     555            expression = expression.this
     556        return expression
     557
     558    def unalias(self):
     559        """
     560        Returns the inner expression if this is an Alias.
     561        """
     562        if isinstance(self, Alias):
     563            return self.this
     564        return self
     565
     566    def unnest_operands(self):
     567        """
     568        Returns unnested operands as a tuple.
     569        """
     570        return tuple(arg.unnest() for arg in self.iter_expressions())
     571
     572    def flatten(self, unnest=True):
     573        """
     574        Returns a generator which yields child nodes whose parents are the same class.
     575
     576        A AND B AND C -> [A, B, C]
     577        """
     578        for node in self.dfs(prune=lambda n: n.parent and type(n) is not self.__class__):
     579            if type(node) is not self.__class__:
     580                yield node.unnest() if unnest and not isinstance(node, Subquery) else node
     581
     582    def __str__(self) -> str:
     583        return self.sql()
     584
     585    def __repr__(self) -> str:
     586        return _to_s(self)
     587
     588    def to_s(self) -> str:
     589        """
     590        Same as __repr__, but includes additional information which can be useful
     591        for debugging, like empty or missing args and the AST nodes' object IDs.
     592        """
     593        return _to_s(self, verbose=True)
     594
     595    def sql(self, dialect: DialectType = None, **opts) -> str:
     596        """
     597        Returns SQL string representation of this tree.
     598
     599        Args:
     600            dialect: the dialect of the output SQL string (eg. "spark", "hive", "presto", "mysql").
     601            opts: other `sqlglot.generator.Generator` options.
     602
     603        Returns:
     604            The SQL string.
     605        """
     606        from sqlglot.dialects import Dialect
     607
     608        return Dialect.get_or_raise(dialect).generate(self, **opts)
     609
     610    def transform(self, fun: t.Callable, *args: t.Any, copy: bool = True, **kwargs) -> Expression:
     611        """
     612        Visits all tree nodes (excluding already transformed ones)
     613        and applies the given transformation function to each node.
     614
     615        Args:
     616            fun: a function which takes a node as an argument and returns a
     617                new transformed node or the same node without modifications. If the function
     618                returns None, then the corresponding node will be removed from the syntax tree.
     619            copy: if set to True a new tree instance is constructed, otherwise the tree is
     620                modified in place.
     621
     622        Returns:
     623            The transformed tree.
     624        """
     625        root = None
     626        new_node = None
     627
     628        for node in (self.copy() if copy else self).dfs(prune=lambda n: n is not new_node):
     629            parent, arg_key, index = node.parent, node.arg_key, node.index
     630            new_node = fun(node, *args, **kwargs)
     631
     632            if not root:
     633                root = new_node
     634            elif new_node is not node:
     635                parent.set(arg_key, new_node, index)
     636
     637        assert root
     638        return root.assert_is(Expression)
     639
     640    @t.overload
     641    def replace(self, expression: E) -> E: ...
     642
     643    @t.overload
     644    def replace(self, expression: None) -> None: ...
     645
     646    def replace(self, expression):
     647        """
     648        Swap out this expression with a new expression.
     649
     650        For example::
     651
     652            >>> tree = Select().select("x").from_("tbl")
     653            >>> tree.find(Column).replace(column("y"))
     654            Column(
     655              this=Identifier(this=y, quoted=False))
     656            >>> tree.sql()
     657            'SELECT y FROM tbl'
     658
     659        Args:
     660            expression: new node
     661
     662        Returns:
     663            The new expression or expressions.
     664        """
     665        parent = self.parent
     666
     667        if not parent or parent is expression:
     668            return expression
     669
     670        key = self.arg_key
     671        value = parent.args.get(key)
     672
     673        if type(expression) is list and isinstance(value, Expression):
     674            # We are trying to replace an Expression with a list, so it's assumed that
     675            # the intention was to really replace the parent of this expression.
     676            value.parent.replace(expression)
     677        else:
     678            parent.set(key, expression, self.index)
     679
     680        if expression is not self:
     681            self.parent = None
     682            self.arg_key = None
     683            self.index = None
     684
     685        return expression
     686
     687    def pop(self: E) -> E:
     688        """
     689        Remove this expression from its AST.
     690
     691        Returns:
     692            The popped expression.
     693        """
     694        self.replace(None)
     695        return self
     696
     697    def assert_is(self, type_: t.Type[E]) -> E:
     698        """
     699        Assert that this `Expression` is an instance of `type_`.
     700
     701        If it is NOT an instance of `type_`, this raises an assertion error.
     702        Otherwise, this returns this expression.
     703
     704        Examples:
     705            This is useful for type security in chained expressions:
     706
     707            >>> import sqlglot
     708            >>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()
     709            'SELECT x, z FROM y'
     710        """
     711        if not isinstance(self, type_):
     712            raise AssertionError(f"{self} is not {type_}.")
     713        return self
     714
     715    def error_messages(self, args: t.Optional[t.Sequence] = None) -> t.List[str]:
     716        """
     717        Checks if this expression is valid (e.g. all mandatory args are set).
     718
     719        Args:
     720            args: a sequence of values that were used to instantiate a Func expression. This is used
     721                to check that the provided arguments don't exceed the function argument limit.
     722
     723        Returns:
     724            A list of error messages for all possible errors that were found.
     725        """
     726        errors: t.List[str] = []
     727
     728        for k in self.args:
     729            if k not in self.arg_types:
     730                errors.append(f"Unexpected keyword: '{k}' for {self.__class__}")
     731        for k, mandatory in self.arg_types.items():
     732            v = self.args.get(k)
     733            if mandatory and (v is None or (isinstance(v, list) and not v)):
     734                errors.append(f"Required keyword: '{k}' missing for {self.__class__}")
     735
     736        if (
     737            args
     738            and isinstance(self, Func)
     739            and len(args) > len(self.arg_types)
     740            and not self.is_var_len_args
     741        ):
     742            errors.append(
     743                f"The number of provided arguments ({len(args)}) is greater than "
     744                f"the maximum number of supported arguments ({len(self.arg_types)})"
     745            )
     746
     747        return errors
     748
     749    def dump(self):
     750        """
     751        Dump this Expression to a JSON-serializable dict.
     752        """
     753        from sqlglot.serde import dump
     754
     755        return dump(self)
     756
     757    @classmethod
     758    def load(cls, obj):
     759        """
     760        Load a dict (as returned by `Expression.dump`) into an Expression instance.
     761        """
     762        from sqlglot.serde import load
     763
     764        return load(obj)
     765
     766    def and_(
     767        self,
     768        *expressions: t.Optional[ExpOrStr],
     769        dialect: DialectType = None,
     770        copy: bool = True,
     771        **opts,
     772    ) -> Condition:
     773        """
     774        AND this condition with one or multiple expressions.
     775
     776        Example:
     777            >>> condition("x=1").and_("y=1").sql()
     778            'x = 1 AND y = 1'
     779
     780        Args:
     781            *expressions: the SQL code strings to parse.
     782                If an `Expression` instance is passed, it will be used as-is.
     783            dialect: the dialect used to parse the input expression.
     784            copy: whether to copy the involved expressions (only applies to Expressions).
     785            opts: other options to use to parse the input expressions.
     786
     787        Returns:
     788            The new And condition.
     789        """
     790        return and_(self, *expressions, dialect=dialect, copy=copy, **opts)
     791
     792    def or_(
     793        self,
     794        *expressions: t.Optional[ExpOrStr],
     795        dialect: DialectType = None,
     796        copy: bool = True,
     797        **opts,
     798    ) -> Condition:
     799        """
     800        OR this condition with one or multiple expressions.
     801
     802        Example:
     803            >>> condition("x=1").or_("y=1").sql()
     804            'x = 1 OR y = 1'
     805
     806        Args:
     807            *expressions: the SQL code strings to parse.
     808                If an `Expression` instance is passed, it will be used as-is.
     809            dialect: the dialect used to parse the input expression.
     810            copy: whether to copy the involved expressions (only applies to Expressions).
     811            opts: other options to use to parse the input expressions.
     812
     813        Returns:
     814            The new Or condition.
     815        """
     816        return or_(self, *expressions, dialect=dialect, copy=copy, **opts)
     817
     818    def not_(self, copy: bool = True):
     819        """
     820        Wrap this condition with NOT.
     821
     822        Example:
     823            >>> condition("x=1").not_().sql()
     824            'NOT x = 1'
     825
     826        Args:
     827            copy: whether to copy this object.
     828
     829        Returns:
     830            The new Not instance.
     831        """
     832        return not_(self, copy=copy)
     833
     834    def as_(
     835        self,
     836        alias: str | Identifier,
     837        quoted: t.Optional[bool] = None,
     838        dialect: DialectType = None,
     839        copy: bool = True,
     840        **opts,
     841    ) -> Alias:
     842        return alias_(self, alias, quoted=quoted, dialect=dialect, copy=copy, **opts)
     843
     844    def _binop(self, klass: t.Type[E], other: t.Any, reverse: bool = False) -> E:
     845        this = self.copy()
     846        other = convert(other, copy=True)
     847        if not isinstance(this, klass) and not isinstance(other, klass):
     848            this = _wrap(this, Binary)
     849            other = _wrap(other, Binary)
     850        if reverse:
     851            return klass(this=other, expression=this)
     852        return klass(this=this, expression=other)
     853
     854    def __getitem__(self, other: ExpOrStr | t.Tuple[ExpOrStr]) -> Bracket:
     855        return Bracket(
     856            this=self.copy(), expressions=[convert(e, copy=True) for e in ensure_list(other)]
     857        )
     858
     859    def __iter__(self) -> t.Iterator:
     860        if "expressions" in self.arg_types:
     861            return iter(self.args.get("expressions") or [])
     862        # We define this because __getitem__ converts Expression into an iterable, which is
     863        # problematic because one can hit infinite loops if they do "for x in some_expr: ..."
     864        # See: https://peps.python.org/pep-0234/
     865        raise TypeError(f"'{self.__class__.__name__}' object is not iterable")
     866
     867    def isin(
     868        self,
     869        *expressions: t.Any,
     870        query: t.Optional[ExpOrStr] = None,
     871        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
     872        copy: bool = True,
     873        **opts,
     874    ) -> In:
     875        subquery = maybe_parse(query, copy=copy, **opts) if query else None
     876        if subquery and not isinstance(subquery, Subquery):
     877            subquery = subquery.subquery(copy=False)
     878
     879        return In(
     880            this=maybe_copy(self, copy),
     881            expressions=[convert(e, copy=copy) for e in expressions],
     882            query=subquery,
     883            unnest=(
     884                Unnest(
     885                    expressions=[
     886                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
     887                        for e in ensure_list(unnest)
     888                    ]
     889                )
     890                if unnest
     891                else None
     892            ),
     893        )
     894
     895    def between(self, low: t.Any, high: t.Any, copy: bool = True, **opts) -> Between:
     896        return Between(
     897            this=maybe_copy(self, copy),
     898            low=convert(low, copy=copy, **opts),
     899            high=convert(high, copy=copy, **opts),
     900        )
     901
     902    def is_(self, other: ExpOrStr) -> Is:
     903        return self._binop(Is, other)
     904
     905    def like(self, other: ExpOrStr) -> Like:
     906        return self._binop(Like, other)
     907
     908    def ilike(self, other: ExpOrStr) -> ILike:
     909        return self._binop(ILike, other)
     910
     911    def eq(self, other: t.Any) -> EQ:
     912        return self._binop(EQ, other)
     913
     914    def neq(self, other: t.Any) -> NEQ:
     915        return self._binop(NEQ, other)
     916
     917    def rlike(self, other: ExpOrStr) -> RegexpLike:
     918        return self._binop(RegexpLike, other)
     919
     920    def div(self, other: ExpOrStr, typed: bool = False, safe: bool = False) -> Div:
     921        div = self._binop(Div, other)
     922        div.args["typed"] = typed
     923        div.args["safe"] = safe
     924        return div
     925
     926    def asc(self, nulls_first: bool = True) -> Ordered:
     927        return Ordered(this=self.copy(), nulls_first=nulls_first)
     928
     929    def desc(self, nulls_first: bool = False) -> Ordered:
     930        return Ordered(this=self.copy(), desc=True, nulls_first=nulls_first)
     931
     932    def __lt__(self, other: t.Any) -> LT:
     933        return self._binop(LT, other)
     934
     935    def __le__(self, other: t.Any) -> LTE:
     936        return self._binop(LTE, other)
     937
     938    def __gt__(self, other: t.Any) -> GT:
     939        return self._binop(GT, other)
     940
     941    def __ge__(self, other: t.Any) -> GTE:
     942        return self._binop(GTE, other)
     943
     944    def __add__(self, other: t.Any) -> Add:
     945        return self._binop(Add, other)
     946
     947    def __radd__(self, other: t.Any) -> Add:
     948        return self._binop(Add, other, reverse=True)
     949
     950    def __sub__(self, other: t.Any) -> Sub:
     951        return self._binop(Sub, other)
     952
     953    def __rsub__(self, other: t.Any) -> Sub:
     954        return self._binop(Sub, other, reverse=True)
     955
     956    def __mul__(self, other: t.Any) -> Mul:
     957        return self._binop(Mul, other)
     958
     959    def __rmul__(self, other: t.Any) -> Mul:
     960        return self._binop(Mul, other, reverse=True)
     961
     962    def __truediv__(self, other: t.Any) -> Div:
     963        return self._binop(Div, other)
     964
     965    def __rtruediv__(self, other: t.Any) -> Div:
     966        return self._binop(Div, other, reverse=True)
     967
     968    def __floordiv__(self, other: t.Any) -> IntDiv:
     969        return self._binop(IntDiv, other)
     970
     971    def __rfloordiv__(self, other: t.Any) -> IntDiv:
     972        return self._binop(IntDiv, other, reverse=True)
     973
     974    def __mod__(self, other: t.Any) -> Mod:
     975        return self._binop(Mod, other)
     976
     977    def __rmod__(self, other: t.Any) -> Mod:
     978        return self._binop(Mod, other, reverse=True)
     979
     980    def __pow__(self, other: t.Any) -> Pow:
     981        return self._binop(Pow, other)
     982
     983    def __rpow__(self, other: t.Any) -> Pow:
     984        return self._binop(Pow, other, reverse=True)
     985
     986    def __and__(self, other: t.Any) -> And:
     987        return self._binop(And, other)
     988
     989    def __rand__(self, other: t.Any) -> And:
     990        return self._binop(And, other, reverse=True)
     991
     992    def __or__(self, other: t.Any) -> Or:
     993        return self._binop(Or, other)
     994
     995    def __ror__(self, other: t.Any) -> Or:
     996        return self._binop(Or, other, reverse=True)
     997
     998    def __neg__(self) -> Neg:
     999        return Neg(this=_wrap(self.copy(), Binary))
    1000
    1001    def __invert__(self) -> Not:
    1002        return not_(self.copy())

The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary context, such as its child expressions, their names (arg keys), and whether a given child expression is optional or not.

###### Attributes:

- key: a unique key for each class in the Expression hierarchy. This is useful for hashing and representing expressions as strings.
- arg_types: determines the arguments (child nodes) supported by an expression. It maps arg keys to booleans that indicate whether the corresponding args are optional.
- parent: a reference to the parent expression (or None, in case of root expressions).
- arg_key: the arg key an expression is associated with, i.e. the name its parent expression uses to refer to it.
- index: the index of an expression if it is inside of a list argument in its parent.
- comments: a list of comments that are associated with a given expression. This is used in order to preserve comments when transpiling SQL code.
- type: the `DataType` type of an expression. This is inferred by the optimizer, in order to enable some transformations that require type information.
- meta: a dictionary that can be used to store useful metadata for a given expression.

###### Example:

>     >>> class Foo(Expression):
>     ...     arg_types = {"this": True, "expression": False}

> The above definition informs us that Foo is an Expression that requires an argument called "this" and may also optionally receive an argument called "expression".

###### Arguments:

- args: a mapping used for retrieving the arguments of an expression, given their arg keys.

Expression(**args: Any) View Source

    102    def __init__(self, **args: t.Any):
    103        self.args: t.Dict[str, t.Any] = args
    104        self.parent: t.Optional[Expression] = None
    105        self.arg_key: t.Optional[str] = None
    106        self.index: t.Optional[int] = None
    107        self.comments: t.Optional[t.List[str]] = None
    108        self._type: t.Optional[DataType] = None
    109        self._meta: t.Optional[t.Dict[str, t.Any]] = None
    110        self._hash: t.Optional[int] = None
    111
    112        for arg_key, value in self.args.items():
    113            self._set_parent(arg_key, value)

key = 'expression'
arg_types = {'this': True}
args: Dict[str, Any]
parent: Optional[Expression]
arg_key: Optional[str]
index: Optional[int]
comments: Optional[List[str]]
hashable_args: Any View Source

    118    @property
    119    def hashable_args(self) -> t.Any:
    120        return frozenset(
    121            (k, tuple(_norm_arg(a) for a in v) if type(v) is list else _norm_arg(v))
    122            for k, v in self.args.items()
    123            if not (v is None or v is False or (type(v) is list and not v))
    124        )

this: Any View Source

    132    @property
    133    def this(self) -> t.Any:
    134        """
    135        Retrieves the argument with key "this".
    136        """
    137        return self.args.get("this")

Retrieves the argument with key "this".

expression: Any View Source

    139    @property
    140    def expression(self) -> t.Any:
    141        """
    142        Retrieves the argument with key "expression".
    143        """
    144        return self.args.get("expression")

Retrieves the argument with key "expression".

expressions: List[Any] View Source

    146    @property
    147    def expressions(self) -> t.List[t.Any]:
    148        """
    149        Retrieves the argument with key "expressions".
    150        """
    151        return self.args.get("expressions") or []

Retrieves the argument with key "expressions".

def text(self, key) -> str: View Source

    153    def text(self, key) -> str:
    154        """
    155        Returns a textual representation of the argument corresponding to "key". This can only be used
    156        for args that are strings or leaf Expression instances, such as identifiers and literals.
    157        """
    158        field = self.args.get(key)
    159        if isinstance(field, str):
    160            return field
    161        if isinstance(field, (Identifier, Literal, Var)):
    162            return field.this
    163        if isinstance(field, (Star, Null)):
    164            return field.name
    165        return ""

Returns a textual representation of the argument corresponding to "key". This can only be used for args that are strings or leaf Expression instances, such as identifiers and literals.

is_string: bool View Source

    167    @property
    168    def is_string(self) -> bool:
    169        """
    170        Checks whether a Literal expression is a string.
    171        """
    172        return isinstance(self, Literal) and self.args["is_string"]

Checks whether a Literal expression is a string.

is_number: bool View Source

    174    @property
    175    def is_number(self) -> bool:
    176        """
    177        Checks whether a Literal expression is a number.
    178        """
    179        return (isinstance(self, Literal) and not self.args["is_string"]) or (
    180            isinstance(self, Neg) and self.this.is_number
    181        )

Checks whether a Literal expression is a number.

def to_py(self) -> Any: View Source

    183    def to_py(self) -> t.Any:
    184        """
    185        Returns a Python object equivalent of the SQL node.
    186        """
    187        raise ValueError(f"{self} cannot be converted to a Python object.")

Returns a Python object equivalent of the SQL node.

is_int: bool View Source

    189    @property
    190    def is_int(self) -> bool:
    191        """
    192        Checks whether an expression is an integer.
    193        """
    194        return self.is_number and isinstance(self.to_py(), int)

Checks whether an expression is an integer.

is_star: bool View Source

    196    @property
    197    def is_star(self) -> bool:
    198        """Checks whether an expression is a star."""
    199        return isinstance(self, Star) or (isinstance(self, Column) and isinstance(self.this, Star))

Checks whether an expression is a star.

alias: str View Source

    201    @property
    202    def alias(self) -> str:
    203        """
    204        Returns the alias of the expression, or an empty string if it's not aliased.
    205        """
    206        if isinstance(self.args.get("alias"), TableAlias):
    207            return self.args["alias"].name
    208        return self.text("alias")

Returns the alias of the expression, or an empty string if it's not aliased.

alias_column_names: List[str] View Source

    210    @property
    211    def alias_column_names(self) -> t.List[str]:
    212        table_alias = self.args.get("alias")
    213        if not table_alias:
    214            return []
    215        return [c.name for c in table_alias.args.get("columns") or []]

name: str View Source

    217    @property
    218    def name(self) -> str:
    219        return self.text("this")

alias_or_name: str View Source

    221    @property
    222    def alias_or_name(self) -> str:
    223        return self.alias or self.name

output_name: str View Source

    225    @property
    226    def output_name(self) -> str:
    227        """
    228        Name of the output column if this expression is a selection.
    229
    230        If the Expression has no output name, an empty string is returned.
    231
    232        Example:
    233            >>> from sqlglot import parse_one
    234            >>> parse_one("SELECT a").expressions[0].output_name
    235            'a'
    236            >>> parse_one("SELECT b AS c").expressions[0].output_name
    237            'c'
    238            >>> parse_one("SELECT 1 + 2").expressions[0].output_name
    239            ''
    240        """
    241        return ""

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

type: Optional[DataType] View Source

    243    @property
    244    def type(self) -> t.Optional[DataType]:
    245        return self._type

def is_type(self, *dtypes) -> bool: View Source

    253    def is_type(self, *dtypes) -> bool:
    254        return self.type is not None and self.type.is_type(*dtypes)

def is_leaf(self) -> bool: View Source

    256    def is_leaf(self) -> bool:
    257        return not any(isinstance(v, (Expression, list)) for v in self.args.values())

meta: Dict[str, Any] View Source

    259    @property
    260    def meta(self) -> t.Dict[str, t.Any]:
    261        if self._meta is None:
    262            self._meta = {}
    263        return self._meta

def copy(self): View Source

    299    def copy(self):
    300        """
    301        Returns a deep copy of the expression.
    302        """
    303        return deepcopy(self)

Returns a deep copy of the expression.

def add_comments(self, comments: Optional[List[str]] = None) -> None: View Source

    305    def add_comments(self, comments: t.Optional[t.List[str]] = None) -> None:
    306        if self.comments is None:
    307            self.comments = []
    308
    309        if comments:
    310            for comment in comments:
    311                _, *meta = comment.split(SQLGLOT_META)
    312                if meta:
    313                    for kv in "".join(meta).split(","):
    314                        k, *v = kv.split("=")
    315                        value = v[0].strip() if v else True
    316                        self.meta[k.strip()] = value
    317                self.comments.append(comment)

def pop_comments(self) -> List[str]: View Source

    319    def pop_comments(self) -> t.List[str]:
    320        comments = self.comments or []
    321        self.comments = None
    322        return comments

def append(self, arg_key: str, value: Any) -> None: View Source

    324    def append(self, arg_key: str, value: t.Any) -> None:
    325        """
    326        Appends value to arg_key if it's a list or sets it as a new list.
    327
    328        Args:
    329            arg_key (str): name of the list expression arg
    330            value (Any): value to append to the list
    331        """
    332        if type(self.args.get(arg_key)) is not list:
    333            self.args[arg_key] = []
    334        self._set_parent(arg_key, value)
    335        values = self.args[arg_key]
    336        if hasattr(value, "parent"):
    337            value.index = len(values)
    338        values.append(value)

Appends value to arg_key if it's a list or sets it as a new list.

###### Arguments:

- arg_key (str): name of the list expression arg
- value (Any): value to append to the list

def set( self, arg_key: str, value: Any, index: Optional[int] = None, overwrite: bool = True) -> None: View Source

    340    def set(
    341        self,
    342        arg_key: str,
    343        value: t.Any,
    344        index: t.Optional[int] = None,
    345        overwrite: bool = True,
    346    ) -> None:
    347        """
    348        Sets arg_key to value.
    349
    350        Args:
    351            arg_key: name of the expression arg.
    352            value: value to set the arg to.
    353            index: if the arg is a list, this specifies what position to add the value in it.
    354            overwrite: assuming an index is given, this determines whether to overwrite the
    355                list entry instead of only inserting a new value (i.e., like list.insert).
    356        """
    357        if index is not None:
    358            expressions = self.args.get(arg_key) or []
    359
    360            if seq_get(expressions, index) is None:
    361                return
    362            if value is None:
    363                expressions.pop(index)
    364                for v in expressions[index:]:
    365                    v.index = v.index - 1
    366                return
    367
    368            if isinstance(value, list):
    369                expressions.pop(index)
    370                expressions[index:index] = value
    371            elif overwrite:
    372                expressions[index] = value
    373            else:
    374                expressions.insert(index, value)
    375
    376            value = expressions
    377        elif value is None:
    378            self.args.pop(arg_key, None)
    379            return
    380
    381        self.args[arg_key] = value
    382        self._set_parent(arg_key, value, index)

Sets arg_key to value.

###### Arguments:

- arg_key: name of the expression arg.
- value: value to set the arg to.
- index: if the arg is a list, this specifies what position to add the value in it.
- overwrite: assuming an index is given, this determines whether to overwrite the list entry instead of only inserting a new value (i.e., like list.insert).

depth: int View Source

    396    @property
    397    def depth(self) -> int:
    398        """
    399        Returns the depth of this tree.
    400        """
    401        if self.parent:
    402            return self.parent.depth + 1
    403        return 0

Returns the depth of this tree.

def iter_expressions(self, reverse: bool = False) -> Iterator[Expression]: View Source

    405    def iter_expressions(self, reverse: bool = False) -> t.Iterator[Expression]:
    406        """Yields the key and expression for all arguments, exploding list args."""
    407        # remove tuple when python 3.7 is deprecated
    408        for vs in reversed(tuple(self.args.values())) if reverse else self.args.values():
    409            if type(vs) is list:
    410                for v in reversed(vs) if reverse else vs:
    411                    if hasattr(v, "parent"):
    412                        yield v
    413            else:
    414                if hasattr(vs, "parent"):
    415                    yield vs

Yields the key and expression for all arguments, exploding list args.

def find(self, *expression_types: Type[~E], bfs: bool = True) -> Optional[~E]: View Source

    417    def find(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Optional[E]:
    418        """
    419        Returns the first node in this tree which matches at least one of
    420        the specified types.
    421
    422        Args:
    423            expression_types: the expression type(s) to match.
    424            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
    425
    426        Returns:
    427            The node which matches the criteria or None if no such node was found.
    428        """
    429        return next(self.find_all(*expression_types, bfs=bfs), None)

Returns the first node in this tree which matches at least one of the specified types.

###### Arguments:

- expression_types: the expression type(s) to match.
- bfs: whether to search the AST using the BFS algorithm (DFS is used if false).

###### Returns:

> The node which matches the criteria or None if no such node was found.

def find_all(self, *expression_types: Type[~E], bfs: bool = True) -> Iterator[~E]: View Source

    431    def find_all(self, *expression_types: t.Type[E], bfs: bool = True) -> t.Iterator[E]:
    432        """
    433        Returns a generator object which visits all nodes in this tree and only
    434        yields those that match at least one of the specified expression types.
    435
    436        Args:
    437            expression_types: the expression type(s) to match.
    438            bfs: whether to search the AST using the BFS algorithm (DFS is used if false).
    439
    440        Returns:
    441            The generator object.
    442        """
    443        for expression in self.walk(bfs=bfs):
    444            if isinstance(expression, expression_types):
    445                yield expression

Returns a generator object which visits all nodes in this tree and only yields those that match at least one of the specified expression types.

###### Arguments:

- expression_types: the expression type(s) to match.
- bfs: whether to search the AST using the BFS algorithm (DFS is used if false).

###### Returns:

> The generator object.

def find_ancestor(self, *expression_types: Type[~E]) -> Optional[~E]: View Source

    447    def find_ancestor(self, *expression_types: t.Type[E]) -> t.Optional[E]:
    448        """
    449        Returns a nearest parent matching expression_types.
    450
    451        Args:
    452            expression_types: the expression type(s) to match.
    453
    454        Returns:
    455            The parent node.
    456        """
    457        ancestor = self.parent
    458        while ancestor and not isinstance(ancestor, expression_types):
    459            ancestor = ancestor.parent
    460        return ancestor  # type: ignore

Returns a nearest parent matching expression_types.

###### Arguments:

- expression_types: the expression type(s) to match.

###### Returns:

> The parent node.

parent_select: Optional[Select] View Source

    462    @property
    463    def parent_select(self) -> t.Optional[Select]:
    464        """
    465        Returns the parent select statement.
    466        """
    467        return self.find_ancestor(Select)

Returns the parent select statement.

same_parent: bool View Source

    469    @property
    470    def same_parent(self) -> bool:
    471        """Returns if the parent is the same class as itself."""
    472        return type(self.parent) is self.__class__

Returns if the parent is the same class as itself.

def root(self) -> Expression: View Source

    474    def root(self) -> Expression:
    475        """
    476        Returns the root expression of this tree.
    477        """
    478        expression = self
    479        while expression.parent:
    480            expression = expression.parent
    481        return expression

Returns the root expression of this tree.

def walk( self, bfs: bool = True, prune: Optional[Callable[[Expression], bool]] = None) -> Iterator[Expression]: View Source

    483    def walk(
    484        self, bfs: bool = True, prune: t.Optional[t.Callable[[Expression], bool]] = None
    485    ) -> t.Iterator[Expression]:
    486        """
    487        Returns a generator object which visits all nodes in this tree.
    488
    489        Args:
    490            bfs: if set to True the BFS traversal order will be applied,
    491                otherwise the DFS traversal will be used instead.
    492            prune: callable that returns True if the generator should stop traversing
    493                this branch of the tree.
    494
    495        Returns:
    496            the generator object.
    497        """
    498        if bfs:
    499            yield from self.bfs(prune=prune)
    500        else:
    501            yield from self.dfs(prune=prune)

Returns a generator object which visits all nodes in this tree.

###### Arguments:

- bfs: if set to True the BFS traversal order will be applied, otherwise the DFS traversal will be used instead.
- prune: callable that returns True if the generator should stop traversing this branch of the tree.

###### Returns:

> the generator object.

def dfs( self, prune: Optional[Callable[[Expression], bool]] = None) -> Iterator[Expression]: View Source

    503    def dfs(
    504        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
    505    ) -> t.Iterator[Expression]:
    506        """
    507        Returns a generator object which visits all nodes in this tree in
    508        the DFS (Depth-first) order.
    509
    510        Returns:
    511            The generator object.
    512        """
    513        stack = [self]
    514
    515        while stack:
    516            node = stack.pop()
    517
    518            yield node
    519
    520            if prune and prune(node):
    521                continue
    522
    523            for v in node.iter_expressions(reverse=True):
    524                stack.append(v)

Returns a generator object which visits all nodes in this tree in the DFS (Depth-first) order.

###### Returns:

> The generator object.

def bfs( self, prune: Optional[Callable[[Expression], bool]] = None) -> Iterator[Expression]: View Source

    526    def bfs(
    527        self, prune: t.Optional[t.Callable[[Expression], bool]] = None
    528    ) -> t.Iterator[Expression]:
    529        """
    530        Returns a generator object which visits all nodes in this tree in
    531        the BFS (Breadth-first) order.
    532
    533        Returns:
    534            The generator object.
    535        """
    536        queue = deque([self])
    537
    538        while queue:
    539            node = queue.popleft()
    540
    541            yield node
    542
    543            if prune and prune(node):
    544                continue
    545
    546            for v in node.iter_expressions():
    547                queue.append(v)

Returns a generator object which visits all nodes in this tree in the BFS (Breadth-first) order.

###### Returns:

> The generator object.

def unnest(self): View Source

    549    def unnest(self):
    550        """
    551        Returns the first non parenthesis child or self.
    552        """
    553        expression = self
    554        while type(expression) is Paren:
    555            expression = expression.this
    556        return expression

Returns the first non parenthesis child or self.

def unalias(self): View Source

    558    def unalias(self):
    559        """
    560        Returns the inner expression if this is an Alias.
    561        """
    562        if isinstance(self, Alias):
    563            return self.this
    564        return self

Returns the inner expression if this is an Alias.

def unnest_operands(self): View Source

    566    def unnest_operands(self):
    567        """
    568        Returns unnested operands as a tuple.
    569        """
    570        return tuple(arg.unnest() for arg in self.iter_expressions())

Returns unnested operands as a tuple.

def flatten(self, unnest=True): View Source

    572    def flatten(self, unnest=True):
    573        """
    574        Returns a generator which yields child nodes whose parents are the same class.
    575
    576        A AND B AND C -> [A, B, C]
    577        """
    578        for node in self.dfs(prune=lambda n: n.parent and type(n) is not self.__class__):
    579            if type(node) is not self.__class__:
    580                yield node.unnest() if unnest and not isinstance(node, Subquery) else node

Returns a generator which yields child nodes whose parents are the same class.

A AND B AND C -> [A, B, C]

def to_s(self) -> str: View Source

    588    def to_s(self) -> str:
    589        """
    590        Same as __repr__, but includes additional information which can be useful
    591        for debugging, like empty or missing args and the AST nodes' object IDs.
    592        """
    593        return _to_s(self, verbose=True)

Same as __repr__, but includes additional information which can be useful for debugging, like empty or missing args and the AST nodes' object IDs.

def sql( self, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> str: View Source

    595    def sql(self, dialect: DialectType = None, **opts) -> str:
    596        """
    597        Returns SQL string representation of this tree.
    598
    599        Args:
    600            dialect: the dialect of the output SQL string (eg. "spark", "hive", "presto", "mysql").
    601            opts: other `sqlglot.generator.Generator` options.
    602
    603        Returns:
    604            The SQL string.
    605        """
    606        from sqlglot.dialects import Dialect
    607
    608        return Dialect.get_or_raise(dialect).generate(self, **opts)

Returns SQL string representation of this tree.

###### Arguments:

- dialect: the dialect of the output SQL string (eg. "spark", "hive", "presto", "mysql").
- opts: other `sqlglot.generator.Generator` options.

###### Returns:

> The SQL string.

def transform( self, fun: Callable, *args: Any, copy: bool = True, **kwargs) -> Expression: View Source

    610    def transform(self, fun: t.Callable, *args: t.Any, copy: bool = True, **kwargs) -> Expression:
    611        """
    612        Visits all tree nodes (excluding already transformed ones)
    613        and applies the given transformation function to each node.
    614
    615        Args:
    616            fun: a function which takes a node as an argument and returns a
    617                new transformed node or the same node without modifications. If the function
    618                returns None, then the corresponding node will be removed from the syntax tree.
    619            copy: if set to True a new tree instance is constructed, otherwise the tree is
    620                modified in place.
    621
    622        Returns:
    623            The transformed tree.
    624        """
    625        root = None
    626        new_node = None
    627
    628        for node in (self.copy() if copy else self).dfs(prune=lambda n: n is not new_node):
    629            parent, arg_key, index = node.parent, node.arg_key, node.index
    630            new_node = fun(node, *args, **kwargs)
    631
    632            if not root:
    633                root = new_node
    634            elif new_node is not node:
    635                parent.set(arg_key, new_node, index)
    636
    637        assert root
    638        return root.assert_is(Expression)

Visits all tree nodes (excluding already transformed ones) and applies the given transformation function to each node.

###### Arguments:

- fun: a function which takes a node as an argument and returns a new transformed node or the same node without modifications. If the function returns None, then the corresponding node will be removed from the syntax tree.
- copy: if set to True a new tree instance is constructed, otherwise the tree is modified in place.

###### Returns:

> The transformed tree.

def replace(self, expression): View Source

    646    def replace(self, expression):
    647        """
    648        Swap out this expression with a new expression.
    649
    650        For example::
    651
    652            >>> tree = Select().select("x").from_("tbl")
    653            >>> tree.find(Column).replace(column("y"))
    654            Column(
    655              this=Identifier(this=y, quoted=False))
    656            >>> tree.sql()
    657            'SELECT y FROM tbl'
    658
    659        Args:
    660            expression: new node
    661
    662        Returns:
    663            The new expression or expressions.
    664        """
    665        parent = self.parent
    666
    667        if not parent or parent is expression:
    668            return expression
    669
    670        key = self.arg_key
    671        value = parent.args.get(key)
    672
    673        if type(expression) is list and isinstance(value, Expression):
    674            # We are trying to replace an Expression with a list, so it's assumed that
    675            # the intention was to really replace the parent of this expression.
    676            value.parent.replace(expression)
    677        else:
    678            parent.set(key, expression, self.index)
    679
    680        if expression is not self:
    681            self.parent = None
    682            self.arg_key = None
    683            self.index = None
    684
    685        return expression

Swap out this expression with a new expression.

For example::

    >>> tree = Select()select("x")from_("tbl")
    >>> tree.find(Column).replace(column("y"))
    Column(
      this=Identifier(this=y, quoted=False))
    >>> tree.sql()
    'SELECT y FROM tbl'

###### Arguments:

- expression: new node

###### Returns:

> The new expression or expressions.

def pop(self: ~E) -> ~E: View Source

    687    def pop(self: E) -> E:
    688        """
    689        Remove this expression from its AST.
    690
    691        Returns:
    692            The popped expression.
    693        """
    694        self.replace(None)
    695        return self

Remove this expression from its AST.

###### Returns:

> The popped expression.

def assert_is(self, type_: Type[~E]) -> ~E: View Source

    697    def assert_is(self, type_: t.Type[E]) -> E:
    698        """
    699        Assert that this `Expression` is an instance of `type_`.
    700
    701        If it is NOT an instance of `type_`, this raises an assertion error.
    702        Otherwise, this returns this expression.
    703
    704        Examples:
    705            This is useful for type security in chained expressions:
    706
    707            >>> import sqlglot
    708            >>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()
    709            'SELECT x, z FROM y'
    710        """
    711        if not isinstance(self, type_):
    712            raise AssertionError(f"{self} is not {type_}.")
    713        return self

Assert that this `Expression` is an instance of `type_`.

If it is NOT an instance of `type_`, this raises an assertion error. Otherwise, this returns this expression.

###### Examples:

> This is useful for type security in chained expressions:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("SELECT x from y").assert_is(Select)select("z").sql()
>     'SELECT x, z FROM y'

def error_messages(self, args: Optional[Sequence] = None) -> List[str]: View Source

    715    def error_messages(self, args: t.Optional[t.Sequence] = None) -> t.List[str]:
    716        """
    717        Checks if this expression is valid (e.g. all mandatory args are set).
    718
    719        Args:
    720            args: a sequence of values that were used to instantiate a Func expression. This is used
    721                to check that the provided arguments don't exceed the function argument limit.
    722
    723        Returns:
    724            A list of error messages for all possible errors that were found.
    725        """
    726        errors: t.List[str] = []
    727
    728        for k in self.args:
    729            if k not in self.arg_types:
    730                errors.append(f"Unexpected keyword: '{k}' for {self.__class__}")
    731        for k, mandatory in self.arg_types.items():
    732            v = self.args.get(k)
    733            if mandatory and (v is None or (isinstance(v, list) and not v)):
    734                errors.append(f"Required keyword: '{k}' missing for {self.__class__}")
    735
    736        if (
    737            args
    738            and isinstance(self, Func)
    739            and len(args) > len(self.arg_types)
    740            and not self.is_var_len_args
    741        ):
    742            errors.append(
    743                f"The number of provided arguments ({len(args)}) is greater than "
    744                f"the maximum number of supported arguments ({len(self.arg_types)})"
    745            )
    746
    747        return errors

Checks if this expression is valid (e.g. all mandatory args are set).

###### Arguments:

- args: a sequence of values that were used to instantiate a Func expression. This is used to check that the provided arguments don't exceed the function argument limit.

###### Returns:

> A list of error messages for all possible errors that were found.

def dump(self): View Source

    749    def dump(self):
    750        """
    751        Dump this Expression to a JSON-serializable dict.
    752        """
    753        from sqlglot.serde import dump
    754
    755        return dump(self)

Dump this Expression to a JSON-serializable dict.

@classmethod
def load(cls, obj): View Source

    757    @classmethod
    758    def load(cls, obj):
    759        """
    760        Load a dict (as returned by `Expression.dump`) into an Expression instance.
    761        """
    762        from sqlglot.serde import load
    763
    764        return load(obj)

Load a dict (as returned by `Expression.dump`) into an Expression instance.

def and_( self, *expressions: Union[str, Expression, NoneType], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    766    def and_(
    767        self,
    768        *expressions: t.Optional[ExpOrStr],
    769        dialect: DialectType = None,
    770        copy: bool = True,
    771        **opts,
    772    ) -> Condition:
    773        """
    774        AND this condition with one or multiple expressions.
    775
    776        Example:
    777            >>> condition("x=1").and_("y=1").sql()
    778            'x = 1 AND y = 1'
    779
    780        Args:
    781            *expressions: the SQL code strings to parse.
    782                If an `Expression` instance is passed, it will be used as-is.
    783            dialect: the dialect used to parse the input expression.
    784            copy: whether to copy the involved expressions (only applies to Expressions).
    785            opts: other options to use to parse the input expressions.
    786
    787        Returns:
    788            The new And condition.
    789        """
    790        return and_(self, *expressions, dialect=dialect, copy=copy, **opts)

AND this condition with one or multiple expressions.

###### Example:

>     >>> condition("x=1")and_("y=1").sql()
>     'x = 1 AND y = 1'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the involved expressions (only applies to Expressions).
- opts: other options to use to parse the input expressions.

###### Returns:

> The new And condition.

def or_( self, *expressions: Union[str, Expression, NoneType], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    792    def or_(
    793        self,
    794        *expressions: t.Optional[ExpOrStr],
    795        dialect: DialectType = None,
    796        copy: bool = True,
    797        **opts,
    798    ) -> Condition:
    799        """
    800        OR this condition with one or multiple expressions.
    801
    802        Example:
    803            >>> condition("x=1").or_("y=1").sql()
    804            'x = 1 OR y = 1'
    805
    806        Args:
    807            *expressions: the SQL code strings to parse.
    808                If an `Expression` instance is passed, it will be used as-is.
    809            dialect: the dialect used to parse the input expression.
    810            copy: whether to copy the involved expressions (only applies to Expressions).
    811            opts: other options to use to parse the input expressions.
    812
    813        Returns:
    814            The new Or condition.
    815        """
    816        return or_(self, *expressions, dialect=dialect, copy=copy, **opts)

OR this condition with one or multiple expressions.

###### Example:

>     >>> condition("x=1")or_("y=1").sql()
>     'x = 1 OR y = 1'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the involved expressions (only applies to Expressions).
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Or condition.

def not_(self, copy: bool = True): View Source

    818    def not_(self, copy: bool = True):
    819        """
    820        Wrap this condition with NOT.
    821
    822        Example:
    823            >>> condition("x=1").not_().sql()
    824            'NOT x = 1'
    825
    826        Args:
    827            copy: whether to copy this object.
    828
    829        Returns:
    830            The new Not instance.
    831        """
    832        return not_(self, copy=copy)

Wrap this condition with NOT.

###### Example:

>     >>> condition("x=1")not_().sql()
>     'NOT x = 1'

###### Arguments:

- copy: whether to copy this object.

###### Returns:

> The new Not instance.

def as_( self, alias: str | Identifier, quoted: Optional[bool] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Alias: View Source

    834    def as_(
    835        self,
    836        alias: str | Identifier,
    837        quoted: t.Optional[bool] = None,
    838        dialect: DialectType = None,
    839        copy: bool = True,
    840        **opts,
    841    ) -> Alias:
    842        return alias_(self, alias, quoted=quoted, dialect=dialect, copy=copy, **opts)

def isin( self, *expressions: Any, query: Union[str, Expression, NoneType] = None, unnest: Union[str, Expression, NoneType, Collection[Union[str, Expression]]] = None, copy: bool = True, **opts) -> In: View Source

    867    def isin(
    868        self,
    869        *expressions: t.Any,
    870        query: t.Optional[ExpOrStr] = None,
    871        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
    872        copy: bool = True,
    873        **opts,
    874    ) -> In:
    875        subquery = maybe_parse(query, copy=copy, **opts) if query else None
    876        if subquery and not isinstance(subquery, Subquery):
    877            subquery = subquery.subquery(copy=False)
    878
    879        return In(
    880            this=maybe_copy(self, copy),
    881            expressions=[convert(e, copy=copy) for e in expressions],
    882            query=subquery,
    883            unnest=(
    884                Unnest(
    885                    expressions=[
    886                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
    887                        for e in ensure_list(unnest)
    888                    ]
    889                )
    890                if unnest
    891                else None
    892            ),
    893        )

def between( self, low: Any, high: Any, copy: bool = True, **opts) -> Between: View Source

    895    def between(self, low: t.Any, high: t.Any, copy: bool = True, **opts) -> Between:
    896        return Between(
    897            this=maybe_copy(self, copy),
    898            low=convert(low, copy=copy, **opts),
    899            high=convert(high, copy=copy, **opts),
    900        )

def is_( self, other: Union[str, Expression]) -> Is: View Source

    902    def is_(self, other: ExpOrStr) -> Is:
    903        return self._binop(Is, other)

def like( self, other: Union[str, Expression]) -> Like: View Source

    905    def like(self, other: ExpOrStr) -> Like:
    906        return self._binop(Like, other)

def ilike( self, other: Union[str, Expression]) -> ILike: View Source

    908    def ilike(self, other: ExpOrStr) -> ILike:
    909        return self._binop(ILike, other)

def eq(self, other: Any) -> EQ: View Source

    911    def eq(self, other: t.Any) -> EQ:
    912        return self._binop(EQ, other)

def neq(self, other: Any) -> NEQ: View Source

    914    def neq(self, other: t.Any) -> NEQ:
    915        return self._binop(NEQ, other)

def rlike( self, other: Union[str, Expression]) -> RegexpLike: View Source

    917    def rlike(self, other: ExpOrStr) -> RegexpLike:
    918        return self._binop(RegexpLike, other)

def div( self, other: Union[str, Expression], typed: bool = False, safe: bool = False) -> Div: View Source

    920    def div(self, other: ExpOrStr, typed: bool = False, safe: bool = False) -> Div:
    921        div = self._binop(Div, other)
    922        div.args["typed"] = typed
    923        div.args["safe"] = safe
    924        return div

def asc(self, nulls_first: bool = True) -> Ordered: View Source

    926    def asc(self, nulls_first: bool = True) -> Ordered:
    927        return Ordered(this=self.copy(), nulls_first=nulls_first)

def desc(self, nulls_first: bool = False) -> Ordered: View Source

    929    def desc(self, nulls_first: bool = False) -> Ordered:
    930        return Ordered(this=self.copy(), desc=True, nulls_first=nulls_first)

IntoType = typing.Union[str, typing.Type[Expression], typing.Collection[typing.Union[str, typing.Type[Expression]]]]
ExpOrStr = typing.Union[str, Expression]
class Condition(Expression): View Source

    1013class Condition(Expression):
    1014    """Logical conditions like x AND y, or simply x"""

Logical conditions like x AND y, or simply x

key = 'condition'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Predicate(Condition): View Source

    1017class Predicate(Condition):
    1018    """Relationships like x = y, x > 1, x >= y."""

Relationships like x = y, x > 1, x >= y.

key = 'predicate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DerivedTable(Expression): View Source

    1021class DerivedTable(Expression):
    1022    @property
    1023    def selects(self) -> t.List[Expression]:
    1024        return self.this.selects if isinstance(self.this, Query) else []
    1025
    1026    @property
    1027    def named_selects(self) -> t.List[str]:
    1028        return [select.output_name for select in self.selects]

selects: List[Expression] View Source

    1022    @property
    1023    def selects(self) -> t.List[Expression]:
    1024        return self.this.selects if isinstance(self.this, Query) else []

named_selects: List[str] View Source

    1026    @property
    1027    def named_selects(self) -> t.List[str]:
    1028        return [select.output_name for select in self.selects]

key = 'derivedtable'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Query(Expression): View Source

    1031class Query(Expression):
    1032    def subquery(self, alias: t.Optional[ExpOrStr] = None, copy: bool = True) -> Subquery:
    1033        """
    1034        Returns a `Subquery` that wraps around this query.
    1035
    1036        Example:
    1037            >>> subquery = Select().select("x").from_("tbl").subquery()
    1038            >>> Select().select("x").from_(subquery).sql()
    1039            'SELECT x FROM (SELECT x FROM tbl)'
    1040
    1041        Args:
    1042            alias: an optional alias for the subquery.
    1043            copy: if `False`, modify this expression instance in-place.
    1044        """
    1045        instance = maybe_copy(self, copy)
    1046        if not isinstance(alias, Expression):
    1047            alias = TableAlias(this=to_identifier(alias)) if alias else None
    1048
    1049        return Subquery(this=instance, alias=alias)
    1050
    1051    def limit(
    1052        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1053    ) -> Q:
    1054        """
    1055        Adds a LIMIT clause to this query.
    1056
    1057        Example:
    1058            >>> select("1").union(select("1")).limit(1).sql()
    1059            'SELECT 1 UNION SELECT 1 LIMIT 1'
    1060
    1061        Args:
    1062            expression: the SQL code string to parse.
    1063                This can also be an integer.
    1064                If a `Limit` instance is passed, it will be used as-is.
    1065                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    1066            dialect: the dialect used to parse the input expression.
    1067            copy: if `False`, modify this expression instance in-place.
    1068            opts: other options to use to parse the input expressions.
    1069
    1070        Returns:
    1071            A limited Select expression.
    1072        """
    1073        return _apply_builder(
    1074            expression=expression,
    1075            instance=self,
    1076            arg="limit",
    1077            into=Limit,
    1078            prefix="LIMIT",
    1079            dialect=dialect,
    1080            copy=copy,
    1081            into_arg="expression",
    1082            **opts,
    1083        )
    1084
    1085    def offset(
    1086        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1087    ) -> Q:
    1088        """
    1089        Set the OFFSET expression.
    1090
    1091        Example:
    1092            >>> Select().from_("tbl").select("x").offset(10).sql()
    1093            'SELECT x FROM tbl OFFSET 10'
    1094
    1095        Args:
    1096            expression: the SQL code string to parse.
    1097                This can also be an integer.
    1098                If a `Offset` instance is passed, this is used as-is.
    1099                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    1100            dialect: the dialect used to parse the input expression.
    1101            copy: if `False`, modify this expression instance in-place.
    1102            opts: other options to use to parse the input expressions.
    1103
    1104        Returns:
    1105            The modified Select expression.
    1106        """
    1107        return _apply_builder(
    1108            expression=expression,
    1109            instance=self,
    1110            arg="offset",
    1111            into=Offset,
    1112            prefix="OFFSET",
    1113            dialect=dialect,
    1114            copy=copy,
    1115            into_arg="expression",
    1116            **opts,
    1117        )
    1118
    1119    def order_by(
    1120        self: Q,
    1121        *expressions: t.Optional[ExpOrStr],
    1122        append: bool = True,
    1123        dialect: DialectType = None,
    1124        copy: bool = True,
    1125        **opts,
    1126    ) -> Q:
    1127        """
    1128        Set the ORDER BY expression.
    1129
    1130        Example:
    1131            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    1132            'SELECT x FROM tbl ORDER BY x DESC'
    1133
    1134        Args:
    1135            *expressions: the SQL code strings to parse.
    1136                If a `Group` instance is passed, this is used as-is.
    1137                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    1138            append: if `True`, add to any existing expressions.
    1139                Otherwise, this flattens all the `Order` expression into a single expression.
    1140            dialect: the dialect used to parse the input expression.
    1141            copy: if `False`, modify this expression instance in-place.
    1142            opts: other options to use to parse the input expressions.
    1143
    1144        Returns:
    1145            The modified Select expression.
    1146        """
    1147        return _apply_child_list_builder(
    1148            *expressions,
    1149            instance=self,
    1150            arg="order",
    1151            append=append,
    1152            copy=copy,
    1153            prefix="ORDER BY",
    1154            into=Order,
    1155            dialect=dialect,
    1156            **opts,
    1157        )
    1158
    1159    @property
    1160    def ctes(self) -> t.List[CTE]:
    1161        """Returns a list of all the CTEs attached to this query."""
    1162        with_ = self.args.get("with")
    1163        return with_.expressions if with_ else []
    1164
    1165    @property
    1166    def selects(self) -> t.List[Expression]:
    1167        """Returns the query's projections."""
    1168        raise NotImplementedError("Query objects must implement `selects`")
    1169
    1170    @property
    1171    def named_selects(self) -> t.List[str]:
    1172        """Returns the output names of the query's projections."""
    1173        raise NotImplementedError("Query objects must implement `named_selects`")
    1174
    1175    def select(
    1176        self: Q,
    1177        *expressions: t.Optional[ExpOrStr],
    1178        append: bool = True,
    1179        dialect: DialectType = None,
    1180        copy: bool = True,
    1181        **opts,
    1182    ) -> Q:
    1183        """
    1184        Append to or set the SELECT expressions.
    1185
    1186        Example:
    1187            >>> Select().select("x", "y").sql()
    1188            'SELECT x, y'
    1189
    1190        Args:
    1191            *expressions: the SQL code strings to parse.
    1192                If an `Expression` instance is passed, it will be used as-is.
    1193            append: if `True`, add to any existing expressions.
    1194                Otherwise, this resets the expressions.
    1195            dialect: the dialect used to parse the input expressions.
    1196            copy: if `False`, modify this expression instance in-place.
    1197            opts: other options to use to parse the input expressions.
    1198
    1199        Returns:
    1200            The modified Query expression.
    1201        """
    1202        raise NotImplementedError("Query objects must implement `select`")
    1203
    1204    def with_(
    1205        self: Q,
    1206        alias: ExpOrStr,
    1207        as_: ExpOrStr,
    1208        recursive: t.Optional[bool] = None,
    1209        materialized: t.Optional[bool] = None,
    1210        append: bool = True,
    1211        dialect: DialectType = None,
    1212        copy: bool = True,
    1213        **opts,
    1214    ) -> Q:
    1215        """
    1216        Append to or set the common table expressions.
    1217
    1218        Example:
    1219            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    1220            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    1221
    1222        Args:
    1223            alias: the SQL code string to parse as the table name.
    1224                If an `Expression` instance is passed, this is used as-is.
    1225            as_: the SQL code string to parse as the table expression.
    1226                If an `Expression` instance is passed, it will be used as-is.
    1227            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    1228            materialized: set the MATERIALIZED part of the expression.
    1229            append: if `True`, add to any existing expressions.
    1230                Otherwise, this resets the expressions.
    1231            dialect: the dialect used to parse the input expression.
    1232            copy: if `False`, modify this expression instance in-place.
    1233            opts: other options to use to parse the input expressions.
    1234
    1235        Returns:
    1236            The modified expression.
    1237        """
    1238        return _apply_cte_builder(
    1239            self,
    1240            alias,
    1241            as_,
    1242            recursive=recursive,
    1243            materialized=materialized,
    1244            append=append,
    1245            dialect=dialect,
    1246            copy=copy,
    1247            **opts,
    1248        )
    1249
    1250    def union(
    1251        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1252    ) -> Union:
    1253        """
    1254        Builds a UNION expression.
    1255
    1256        Example:
    1257            >>> import sqlglot
    1258            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    1259            'SELECT * FROM foo UNION SELECT * FROM bla'
    1260
    1261        Args:
    1262            expression: the SQL code string.
    1263                If an `Expression` instance is passed, it will be used as-is.
    1264            distinct: set the DISTINCT flag if and only if this is true.
    1265            dialect: the dialect used to parse the input expression.
    1266            opts: other options to use to parse the input expressions.
    1267
    1268        Returns:
    1269            The new Union expression.
    1270        """
    1271        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    1272
    1273    def intersect(
    1274        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1275    ) -> Intersect:
    1276        """
    1277        Builds an INTERSECT expression.
    1278
    1279        Example:
    1280            >>> import sqlglot
    1281            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    1282            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    1283
    1284        Args:
    1285            expression: the SQL code string.
    1286                If an `Expression` instance is passed, it will be used as-is.
    1287            distinct: set the DISTINCT flag if and only if this is true.
    1288            dialect: the dialect used to parse the input expression.
    1289            opts: other options to use to parse the input expressions.
    1290
    1291        Returns:
    1292            The new Intersect expression.
    1293        """
    1294        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    1295
    1296    def except_(
    1297        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1298    ) -> Except:
    1299        """
    1300        Builds an EXCEPT expression.
    1301
    1302        Example:
    1303            >>> import sqlglot
    1304            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    1305            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    1306
    1307        Args:
    1308            expression: the SQL code string.
    1309                If an `Expression` instance is passed, it will be used as-is.
    1310            distinct: set the DISTINCT flag if and only if this is true.
    1311            dialect: the dialect used to parse the input expression.
    1312            opts: other options to use to parse the input expressions.
    1313
    1314        Returns:
    1315            The new Except expression.
    1316        """
    1317        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)

def subquery( self, alias: Union[str, Expression, NoneType] = None, copy: bool = True) -> Subquery: View Source

    1032    def subquery(self, alias: t.Optional[ExpOrStr] = None, copy: bool = True) -> Subquery:
    1033        """
    1034        Returns a `Subquery` that wraps around this query.
    1035
    1036        Example:
    1037            >>> subquery = Select().select("x").from_("tbl").subquery()
    1038            >>> Select().select("x").from_(subquery).sql()
    1039            'SELECT x FROM (SELECT x FROM tbl)'
    1040
    1041        Args:
    1042            alias: an optional alias for the subquery.
    1043            copy: if `False`, modify this expression instance in-place.
    1044        """
    1045        instance = maybe_copy(self, copy)
    1046        if not isinstance(alias, Expression):
    1047            alias = TableAlias(this=to_identifier(alias)) if alias else None
    1048
    1049        return Subquery(this=instance, alias=alias)

Returns a `Subquery` that wraps around this query.

###### Example:

>     >>> subquery = Select()select("x")from_("tbl")subquery()
>     >>> Select()select("x")from_(subquery).sql()
>     'SELECT x FROM (SELECT x FROM tbl)'

###### Arguments:

- alias: an optional alias for the subquery.
- copy: if `False`, modify this expression instance in-place.

def limit( self: ~Q, expression: Union[str, Expression, int], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~Q: View Source

    1051    def limit(
    1052        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1053    ) -> Q:
    1054        """
    1055        Adds a LIMIT clause to this query.
    1056
    1057        Example:
    1058            >>> select("1").union(select("1")).limit(1).sql()
    1059            'SELECT 1 UNION SELECT 1 LIMIT 1'
    1060
    1061        Args:
    1062            expression: the SQL code string to parse.
    1063                This can also be an integer.
    1064                If a `Limit` instance is passed, it will be used as-is.
    1065                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    1066            dialect: the dialect used to parse the input expression.
    1067            copy: if `False`, modify this expression instance in-place.
    1068            opts: other options to use to parse the input expressions.
    1069
    1070        Returns:
    1071            A limited Select expression.
    1072        """
    1073        return _apply_builder(
    1074            expression=expression,
    1075            instance=self,
    1076            arg="limit",
    1077            into=Limit,
    1078            prefix="LIMIT",
    1079            dialect=dialect,
    1080            copy=copy,
    1081            into_arg="expression",
    1082            **opts,
    1083        )

Adds a LIMIT clause to this query.

###### Example:

>     >>> select("1")union(select("1")).limit(1).sql()
>     'SELECT 1 UNION SELECT 1 LIMIT 1'

###### Arguments:

- expression: the SQL code string to parse. This can also be an integer. If a `Limit` instance is passed, it will be used as-is. If another `Expression` instance is passed, it will be wrapped in a `Limit`.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> A limited Select expression.

def offset( self: ~Q, expression: Union[str, Expression, int], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~Q: View Source

    1085    def offset(
    1086        self: Q, expression: ExpOrStr | int, dialect: DialectType = None, copy: bool = True, **opts
    1087    ) -> Q:
    1088        """
    1089        Set the OFFSET expression.
    1090
    1091        Example:
    1092            >>> Select().from_("tbl").select("x").offset(10).sql()
    1093            'SELECT x FROM tbl OFFSET 10'
    1094
    1095        Args:
    1096            expression: the SQL code string to parse.
    1097                This can also be an integer.
    1098                If a `Offset` instance is passed, this is used as-is.
    1099                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    1100            dialect: the dialect used to parse the input expression.
    1101            copy: if `False`, modify this expression instance in-place.
    1102            opts: other options to use to parse the input expressions.
    1103
    1104        Returns:
    1105            The modified Select expression.
    1106        """
    1107        return _apply_builder(
    1108            expression=expression,
    1109            instance=self,
    1110            arg="offset",
    1111            into=Offset,
    1112            prefix="OFFSET",
    1113            dialect=dialect,
    1114            copy=copy,
    1115            into_arg="expression",
    1116            **opts,
    1117        )

Set the OFFSET expression.

###### Example:

>     >>> Select()from_("tbl")select("x").offset(10).sql()
>     'SELECT x FROM tbl OFFSET 10'

###### Arguments:

- expression: the SQL code string to parse. This can also be an integer. If a `Offset` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `Offset`.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def order_by( self: ~Q, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~Q: View Source

    1119    def order_by(
    1120        self: Q,
    1121        *expressions: t.Optional[ExpOrStr],
    1122        append: bool = True,
    1123        dialect: DialectType = None,
    1124        copy: bool = True,
    1125        **opts,
    1126    ) -> Q:
    1127        """
    1128        Set the ORDER BY expression.
    1129
    1130        Example:
    1131            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    1132            'SELECT x FROM tbl ORDER BY x DESC'
    1133
    1134        Args:
    1135            *expressions: the SQL code strings to parse.
    1136                If a `Group` instance is passed, this is used as-is.
    1137                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    1138            append: if `True`, add to any existing expressions.
    1139                Otherwise, this flattens all the `Order` expression into a single expression.
    1140            dialect: the dialect used to parse the input expression.
    1141            copy: if `False`, modify this expression instance in-place.
    1142            opts: other options to use to parse the input expressions.
    1143
    1144        Returns:
    1145            The modified Select expression.
    1146        """
    1147        return _apply_child_list_builder(
    1148            *expressions,
    1149            instance=self,
    1150            arg="order",
    1151            append=append,
    1152            copy=copy,
    1153            prefix="ORDER BY",
    1154            into=Order,
    1155            dialect=dialect,
    1156            **opts,
    1157        )

Set the ORDER BY expression.

###### Example:

>     >>> Select()from_("tbl")select("x").order_by("x DESC").sql()
>     'SELECT x FROM tbl ORDER BY x DESC'

###### Arguments:

- *expressions: the SQL code strings to parse. If a `Group` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `Order`.
- append: if `True`, add to any existing expressions. Otherwise, this flattens all the `Order` expression into a single expression.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

ctes: List[CTE] View Source

    1159    @property
    1160    def ctes(self) -> t.List[CTE]:
    1161        """Returns a list of all the CTEs attached to this query."""
    1162        with_ = self.args.get("with")
    1163        return with_.expressions if with_ else []

Returns a list of all the CTEs attached to this query.

selects: List[Expression] View Source

    1165    @property
    1166    def selects(self) -> t.List[Expression]:
    1167        """Returns the query's projections."""
    1168        raise NotImplementedError("Query objects must implement `selects`")

Returns the query's projections.

named_selects: List[str] View Source

    1170    @property
    1171    def named_selects(self) -> t.List[str]:
    1172        """Returns the output names of the query's projections."""
    1173        raise NotImplementedError("Query objects must implement `named_selects`")

Returns the output names of the query's projections.

def select( self: ~Q, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~Q: View Source

    1175    def select(
    1176        self: Q,
    1177        *expressions: t.Optional[ExpOrStr],
    1178        append: bool = True,
    1179        dialect: DialectType = None,
    1180        copy: bool = True,
    1181        **opts,
    1182    ) -> Q:
    1183        """
    1184        Append to or set the SELECT expressions.
    1185
    1186        Example:
    1187            >>> Select().select("x", "y").sql()
    1188            'SELECT x, y'
    1189
    1190        Args:
    1191            *expressions: the SQL code strings to parse.
    1192                If an `Expression` instance is passed, it will be used as-is.
    1193            append: if `True`, add to any existing expressions.
    1194                Otherwise, this resets the expressions.
    1195            dialect: the dialect used to parse the input expressions.
    1196            copy: if `False`, modify this expression instance in-place.
    1197            opts: other options to use to parse the input expressions.
    1198
    1199        Returns:
    1200            The modified Query expression.
    1201        """
    1202        raise NotImplementedError("Query objects must implement `select`")

Append to or set the SELECT expressions.

###### Example:

>     >>> Select()select("x", "y").sql()
>     'SELECT x, y'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Query expression.

def with_( self: ~Q, alias: Union[str, Expression], as_: Union[str, Expression], recursive: Optional[bool] = None, materialized: Optional[bool] = None, append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~Q: View Source

    1204    def with_(
    1205        self: Q,
    1206        alias: ExpOrStr,
    1207        as_: ExpOrStr,
    1208        recursive: t.Optional[bool] = None,
    1209        materialized: t.Optional[bool] = None,
    1210        append: bool = True,
    1211        dialect: DialectType = None,
    1212        copy: bool = True,
    1213        **opts,
    1214    ) -> Q:
    1215        """
    1216        Append to or set the common table expressions.
    1217
    1218        Example:
    1219            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    1220            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    1221
    1222        Args:
    1223            alias: the SQL code string to parse as the table name.
    1224                If an `Expression` instance is passed, this is used as-is.
    1225            as_: the SQL code string to parse as the table expression.
    1226                If an `Expression` instance is passed, it will be used as-is.
    1227            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    1228            materialized: set the MATERIALIZED part of the expression.
    1229            append: if `True`, add to any existing expressions.
    1230                Otherwise, this resets the expressions.
    1231            dialect: the dialect used to parse the input expression.
    1232            copy: if `False`, modify this expression instance in-place.
    1233            opts: other options to use to parse the input expressions.
    1234
    1235        Returns:
    1236            The modified expression.
    1237        """
    1238        return _apply_cte_builder(
    1239            self,
    1240            alias,
    1241            as_,
    1242            recursive=recursive,
    1243            materialized=materialized,
    1244            append=append,
    1245            dialect=dialect,
    1246            copy=copy,
    1247            **opts,
    1248        )

Append to or set the common table expressions.

###### Example:

>     >>> Select().with_("tbl2", as_="SELECT * FROM tbl")select("x")from_("tbl2").sql()
>     'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'

###### Arguments:

- alias: the SQL code string to parse as the table name. If an `Expression` instance is passed, this is used as-is.
- as_: the SQL code string to parse as the table expression. If an `Expression` instance is passed, it will be used as-is.
- recursive: set the RECURSIVE part of the expression. Defaults to `False`.
- materialized: set the MATERIALIZED part of the expression.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified expression.

def union( self, expression: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Union: View Source

    1250    def union(
    1251        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1252    ) -> Union:
    1253        """
    1254        Builds a UNION expression.
    1255
    1256        Example:
    1257            >>> import sqlglot
    1258            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    1259            'SELECT * FROM foo UNION SELECT * FROM bla'
    1260
    1261        Args:
    1262            expression: the SQL code string.
    1263                If an `Expression` instance is passed, it will be used as-is.
    1264            distinct: set the DISTINCT flag if and only if this is true.
    1265            dialect: the dialect used to parse the input expression.
    1266            opts: other options to use to parse the input expressions.
    1267
    1268        Returns:
    1269            The new Union expression.
    1270        """
    1271        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)

Builds a UNION expression.

###### Example:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("SELECT * FROM foo")union("SELECT * FROM bla").sql()
>     'SELECT * FROM foo UNION SELECT * FROM bla'

###### Arguments:

- expression: the SQL code string. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Union expression.

def intersect( self, expression: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Intersect: View Source

    1273    def intersect(
    1274        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1275    ) -> Intersect:
    1276        """
    1277        Builds an INTERSECT expression.
    1278
    1279        Example:
    1280            >>> import sqlglot
    1281            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    1282            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    1283
    1284        Args:
    1285            expression: the SQL code string.
    1286                If an `Expression` instance is passed, it will be used as-is.
    1287            distinct: set the DISTINCT flag if and only if this is true.
    1288            dialect: the dialect used to parse the input expression.
    1289            opts: other options to use to parse the input expressions.
    1290
    1291        Returns:
    1292            The new Intersect expression.
    1293        """
    1294        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)

Builds an INTERSECT expression.

###### Example:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("SELECT * FROM foo")intersect("SELECT * FROM bla").sql()
>     'SELECT * FROM foo INTERSECT SELECT * FROM bla'

###### Arguments:

- expression: the SQL code string. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Intersect expression.

def except_( self, expression: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Except: View Source

    1296    def except_(
    1297        self, expression: ExpOrStr, distinct: bool = True, dialect: DialectType = None, **opts
    1298    ) -> Except:
    1299        """
    1300        Builds an EXCEPT expression.
    1301
    1302        Example:
    1303            >>> import sqlglot
    1304            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    1305            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    1306
    1307        Args:
    1308            expression: the SQL code string.
    1309                If an `Expression` instance is passed, it will be used as-is.
    1310            distinct: set the DISTINCT flag if and only if this is true.
    1311            dialect: the dialect used to parse the input expression.
    1312            opts: other options to use to parse the input expressions.
    1313
    1314        Returns:
    1315            The new Except expression.
    1316        """
    1317        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)

Builds an EXCEPT expression.

###### Example:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("SELECT * FROM foo")except_("SELECT * FROM bla").sql()
>     'SELECT * FROM foo EXCEPT SELECT * FROM bla'

###### Arguments:

- expression: the SQL code string. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Except expression.

key = 'query'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class UDTF(DerivedTable): View Source

    1320class UDTF(DerivedTable):
    1321    @property
    1322    def selects(self) -> t.List[Expression]:
    1323        alias = self.args.get("alias")
    1324        return alias.columns if alias else []

selects: List[Expression] View Source

    1321    @property
    1322    def selects(self) -> t.List[Expression]:
    1323        alias = self.args.get("alias")
    1324        return alias.columns if alias else []

key = 'udtf'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
  desc
DerivedTable
  named_selects

class Cache(Expression): View Source

    1327class Cache(Expression):
    1328    arg_types = {
    1329        "this": True,
    1330        "lazy": False,
    1331        "options": False,
    1332        "expression": False,
    1333    }

arg_types = {'this': True, 'lazy': False, 'options': False, 'expression': False}
key = 'cache'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Uncache(Expression): View Source

    1336class Uncache(Expression):
    1337    arg_types = {"this": True, "exists": False}

arg_types = {'this': True, 'exists': False}
key = 'uncache'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Refresh(Expression): View Source

    1340class Refresh(Expression):
    1341    pass

key = 'refresh'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  rlike
  div
  asc
  desc

class DDL(Expression): View Source

    1344class DDL(Expression):
    1345    @property
    1346    def ctes(self) -> t.List[CTE]:
    1347        """Returns a list of all the CTEs attached to this statement."""
    1348        with_ = self.args.get("with")
    1349        return with_.expressions if with_ else []
    1350
    1351    @property
    1352    def selects(self) -> t.List[Expression]:
    1353        """If this statement contains a query (e.g. a CTAS), this returns the query's projections."""
    1354        return self.expression.selects if isinstance(self.expression, Query) else []
    1355
    1356    @property
    1357    def named_selects(self) -> t.List[str]:
    1358        """
    1359        If this statement contains a query (e.g. a CTAS), this returns the output
    1360        names of the query's projections.
    1361        """
    1362        return self.expression.named_selects if isinstance(self.expression, Query) else []

ctes: List[CTE] View Source

    1345    @property
    1346    def ctes(self) -> t.List[CTE]:
    1347        """Returns a list of all the CTEs attached to this statement."""
    1348        with_ = self.args.get("with")
    1349        return with_.expressions if with_ else []

Returns a list of all the CTEs attached to this statement.

selects: List[Expression] View Source

    1351    @property
    1352    def selects(self) -> t.List[Expression]:
    1353        """If this statement contains a query (e.g. a CTAS), this returns the query's projections."""
    1354        return self.expression.selects if isinstance(self.expression, Query) else []

If this statement contains a query (e.g. a CTAS), this returns the query's projections.

named_selects: List[str] View Source

    1356    @property
    1357    def named_selects(self) -> t.List[str]:
    1358        """
    1359        If this statement contains a query (e.g. a CTAS), this returns the output
    1360        names of the query's projections.
    1361        """
    1362        return self.expression.named_selects if isinstance(self.expression, Query) else []

If this statement contains a query (e.g. a CTAS), this returns the output names of the query's projections.

key = 'ddl'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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  desc

class DML(Expression): View Source

    1365class DML(Expression):
    1366    def returning(
    1367        self,
    1368        expression: ExpOrStr,
    1369        dialect: DialectType = None,
    1370        copy: bool = True,
    1371        **opts,
    1372    ) -> DML:
    1373        """
    1374        Set the RETURNING expression. Not supported by all dialects.
    1375
    1376        Example:
    1377            >>> delete("tbl").returning("*", dialect="postgres").sql()
    1378            'DELETE FROM tbl RETURNING *'
    1379
    1380        Args:
    1381            expression: the SQL code strings to parse.
    1382                If an `Expression` instance is passed, it will be used as-is.
    1383            dialect: the dialect used to parse the input expressions.
    1384            copy: if `False`, modify this expression instance in-place.
    1385            opts: other options to use to parse the input expressions.
    1386
    1387        Returns:
    1388            Delete: the modified expression.
    1389        """
    1390        return _apply_builder(
    1391            expression=expression,
    1392            instance=self,
    1393            arg="returning",
    1394            prefix="RETURNING",
    1395            dialect=dialect,
    1396            copy=copy,
    1397            into=Returning,
    1398            **opts,
    1399        )

def returning( self, expression: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> DML: View Source

    1366    def returning(
    1367        self,
    1368        expression: ExpOrStr,
    1369        dialect: DialectType = None,
    1370        copy: bool = True,
    1371        **opts,
    1372    ) -> DML:
    1373        """
    1374        Set the RETURNING expression. Not supported by all dialects.
    1375
    1376        Example:
    1377            >>> delete("tbl").returning("*", dialect="postgres").sql()
    1378            'DELETE FROM tbl RETURNING *'
    1379
    1380        Args:
    1381            expression: the SQL code strings to parse.
    1382                If an `Expression` instance is passed, it will be used as-is.
    1383            dialect: the dialect used to parse the input expressions.
    1384            copy: if `False`, modify this expression instance in-place.
    1385            opts: other options to use to parse the input expressions.
    1386
    1387        Returns:
    1388            Delete: the modified expression.
    1389        """
    1390        return _apply_builder(
    1391            expression=expression,
    1392            instance=self,
    1393            arg="returning",
    1394            prefix="RETURNING",
    1395            dialect=dialect,
    1396            copy=copy,
    1397            into=Returning,
    1398            **opts,
    1399        )

Set the RETURNING expression. Not supported by all dialects.

###### Example:

>     >>> delete("tbl").returning("*", dialect="postgres").sql()
>     'DELETE FROM tbl RETURNING *'

###### Arguments:

- expression: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> Delete: the modified expression.

key = 'dml'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
  desc

class Create(DDL): View Source

    1402class Create(DDL):
    1403    arg_types = {
    1404        "with": False,
    1405        "this": True,
    1406        "kind": True,
    1407        "expression": False,
    1408        "exists": False,
    1409        "properties": False,
    1410        "replace": False,
    1411        "refresh": False,
    1412        "unique": False,
    1413        "indexes": False,
    1414        "no_schema_binding": False,
    1415        "begin": False,
    1416        "end": False,
    1417        "clone": False,
    1418        "concurrently": False,
    1419        "clustered": False,
    1420    }
    1421
    1422    @property
    1423    def kind(self) -> t.Optional[str]:
    1424        kind = self.args.get("kind")
    1425        return kind and kind.upper()

arg_types = {'with': False, 'this': True, 'kind': True, 'expression': False, 'exists': False, 'properties': False, 'replace': False, 'refresh': False, 'unique': False, 'indexes': False, 'no_schema_binding': False, 'begin': False, 'end': False, 'clone': False, 'concurrently': False, 'clustered': False}
kind: Optional[str] View Source

    1422    @property
    1423    def kind(self) -> t.Optional[str]:
    1424        kind = self.args.get("kind")
    1425        return kind and kind.upper()

key = 'create'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc
DDL
  ctes
  selects
  named_selects

class SequenceProperties(Expression): View Source

    1428class SequenceProperties(Expression):
    1429    arg_types = {
    1430        "increment": False,
    1431        "minvalue": False,
    1432        "maxvalue": False,
    1433        "cache": False,
    1434        "start": False,
    1435        "owned": False,
    1436        "options": False,
    1437    }

arg_types = {'increment': False, 'minvalue': False, 'maxvalue': False, 'cache': False, 'start': False, 'owned': False, 'options': False}
key = 'sequenceproperties'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class TruncateTable(Expression): View Source

    1440class TruncateTable(Expression):
    1441    arg_types = {
    1442        "expressions": True,
    1443        "is_database": False,
    1444        "exists": False,
    1445        "only": False,
    1446        "cluster": False,
    1447        "identity": False,
    1448        "option": False,
    1449        "partition": False,
    1450    }

arg_types = {'expressions': True, 'is_database': False, 'exists': False, 'only': False, 'cluster': False, 'identity': False, 'option': False, 'partition': False}
key = 'truncatetable'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  rlike
  div
  asc
  desc

class Clone(Expression): View Source

    1456class Clone(Expression):
    1457    arg_types = {"this": True, "shallow": False, "copy": False}

arg_types = {'this': True, 'shallow': False, 'copy': False}
key = 'clone'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Describe(Expression): View Source

    1460class Describe(Expression):
    1461    arg_types = {
    1462        "this": True,
    1463        "style": False,
    1464        "kind": False,
    1465        "expressions": False,
    1466        "partition": False,
    1467    }

arg_types = {'this': True, 'style': False, 'kind': False, 'expressions': False, 'partition': False}
key = 'describe'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  rlike
  div
  asc
  desc

class Summarize(Expression): View Source

    1471class Summarize(Expression):
    1472    arg_types = {"this": True, "table": False}

arg_types = {'this': True, 'table': False}
key = 'summarize'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Kill(Expression): View Source

    1475class Kill(Expression):
    1476    arg_types = {"this": True, "kind": False}

arg_types = {'this': True, 'kind': False}
key = 'kill'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Pragma(Expression): View Source

    1479class Pragma(Expression):
    1480    pass

key = 'pragma'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
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  isin
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class Declare(Expression): View Source

    1483class Declare(Expression):
    1484    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'declare'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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class DeclareItem(Expression): View Source

    1487class DeclareItem(Expression):
    1488    arg_types = {"this": True, "kind": True, "default": False}

arg_types = {'this': True, 'kind': True, 'default': False}
key = 'declareitem'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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class Set(Expression): View Source

    1491class Set(Expression):
    1492    arg_types = {"expressions": False, "unset": False, "tag": False}

arg_types = {'expressions': False, 'unset': False, 'tag': False}
key = 'set'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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  asc
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class Heredoc(Expression): View Source

    1495class Heredoc(Expression):
    1496    arg_types = {"this": True, "tag": False}

arg_types = {'this': True, 'tag': False}
key = 'heredoc'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  rlike
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class SetItem(Expression): View Source

    1499class SetItem(Expression):
    1500    arg_types = {
    1501        "this": False,
    1502        "expressions": False,
    1503        "kind": False,
    1504        "collate": False,  # MySQL SET NAMES statement
    1505        "global": False,
    1506    }

arg_types = {'this': False, 'expressions': False, 'kind': False, 'collate': False, 'global': False}
key = 'setitem'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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  rlike
  div
  asc
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class Show(Expression): View Source

    1509class Show(Expression):
    1510    arg_types = {
    1511        "this": True,
    1512        "history": False,
    1513        "terse": False,
    1514        "target": False,
    1515        "offset": False,
    1516        "starts_with": False,
    1517        "limit": False,
    1518        "from": False,
    1519        "like": False,
    1520        "where": False,
    1521        "db": False,
    1522        "scope": False,
    1523        "scope_kind": False,
    1524        "full": False,
    1525        "mutex": False,
    1526        "query": False,
    1527        "channel": False,
    1528        "global": False,
    1529        "log": False,
    1530        "position": False,
    1531        "types": False,
    1532    }

arg_types = {'this': True, 'history': False, 'terse': False, 'target': False, 'offset': False, 'starts_with': False, 'limit': False, 'from': False, 'like': False, 'where': False, 'db': False, 'scope': False, 'scope_kind': False, 'full': False, 'mutex': False, 'query': False, 'channel': False, 'global': False, 'log': False, 'position': False, 'types': False}
key = 'show'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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  ilike
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class UserDefinedFunction(Expression): View Source

    1535class UserDefinedFunction(Expression):
    1536    arg_types = {"this": True, "expressions": False, "wrapped": False}

arg_types = {'this': True, 'expressions': False, 'wrapped': False}
key = 'userdefinedfunction'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
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  rlike
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class CharacterSet(Expression): View Source

    1539class CharacterSet(Expression):
    1540    arg_types = {"this": True, "default": False}

arg_types = {'this': True, 'default': False}
key = 'characterset'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class With(Expression): View Source

    1543class With(Expression):
    1544    arg_types = {"expressions": True, "recursive": False}
    1545
    1546    @property
    1547    def recursive(self) -> bool:
    1548        return bool(self.args.get("recursive"))

arg_types = {'expressions': True, 'recursive': False}
recursive: bool View Source

    1546    @property
    1547    def recursive(self) -> bool:
    1548        return bool(self.args.get("recursive"))

key = 'with'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
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  rlike
  div
  asc
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class WithinGroup(Expression): View Source

    1551class WithinGroup(Expression):
    1552    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'withingroup'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
  div
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class CTE(DerivedTable): View Source

    1557class CTE(DerivedTable):
    1558    arg_types = {
    1559        "this": True,
    1560        "alias": True,
    1561        "scalar": False,
    1562        "materialized": False,
    1563    }

arg_types = {'this': True, 'alias': True, 'scalar': False, 'materialized': False}
key = 'cte'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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  rlike
  div
  asc
  desc
DerivedTable
  selects
  named_selects

class ProjectionDef(Expression): View Source

    1566class ProjectionDef(Expression):
    1567    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'projectiondef'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
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  asc
  desc

class TableAlias(Expression): View Source

    1570class TableAlias(Expression):
    1571    arg_types = {"this": False, "columns": False}
    1572
    1573    @property
    1574    def columns(self):
    1575        return self.args.get("columns") or []

arg_types = {'this': False, 'columns': False}
columns View Source

    1573    @property
    1574    def columns(self):
    1575        return self.args.get("columns") or []

key = 'tablealias'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class BitString(Condition): View Source

    1578class BitString(Condition):
    1579    pass

key = 'bitstring'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class HexString(Condition): View Source

    1582class HexString(Condition):
    1583    pass

key = 'hexstring'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class ByteString(Condition): View Source

    1586class ByteString(Condition):
    1587    pass

key = 'bytestring'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class RawString(Condition): View Source

    1590class RawString(Condition):
    1591    pass

key = 'rawstring'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class UnicodeString(Condition): View Source

    1594class UnicodeString(Condition):
    1595    arg_types = {"this": True, "escape": False}

arg_types = {'this': True, 'escape': False}
key = 'unicodestring'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
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class Column(Condition): View Source

    1598class Column(Condition):
    1599    arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False}
    1600
    1601    @property
    1602    def table(self) -> str:
    1603        return self.text("table")
    1604
    1605    @property
    1606    def db(self) -> str:
    1607        return self.text("db")
    1608
    1609    @property
    1610    def catalog(self) -> str:
    1611        return self.text("catalog")
    1612
    1613    @property
    1614    def output_name(self) -> str:
    1615        return self.name
    1616
    1617    @property
    1618    def parts(self) -> t.List[Identifier]:
    1619        """Return the parts of a column in order catalog, db, table, name."""
    1620        return [
    1621            t.cast(Identifier, self.args[part])
    1622            for part in ("catalog", "db", "table", "this")
    1623            if self.args.get(part)
    1624        ]
    1625
    1626    def to_dot(self) -> Dot | Identifier:
    1627        """Converts the column into a dot expression."""
    1628        parts = self.parts
    1629        parent = self.parent
    1630
    1631        while parent:
    1632            if isinstance(parent, Dot):
    1633                parts.append(parent.expression)
    1634            parent = parent.parent
    1635
    1636        return Dot.build(deepcopy(parts)) if len(parts) > 1 else parts[0]

arg_types = {'this': True, 'table': False, 'db': False, 'catalog': False, 'join_mark': False}
table: str View Source

    1601    @property
    1602    def table(self) -> str:
    1603        return self.text("table")

db: str View Source

    1605    @property
    1606    def db(self) -> str:
    1607        return self.text("db")

catalog: str View Source

    1609    @property
    1610    def catalog(self) -> str:
    1611        return self.text("catalog")

output_name: str View Source

    1613    @property
    1614    def output_name(self) -> str:
    1615        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

parts: List[Identifier] View Source

    1617    @property
    1618    def parts(self) -> t.List[Identifier]:
    1619        """Return the parts of a column in order catalog, db, table, name."""
    1620        return [
    1621            t.cast(Identifier, self.args[part])
    1622            for part in ("catalog", "db", "table", "this")
    1623            if self.args.get(part)
    1624        ]

Return the parts of a column in order catalog, db, table, name.

def to_dot(self) -> Dot | Identifier: View Source

    1626    def to_dot(self) -> Dot | Identifier:
    1627        """Converts the column into a dot expression."""
    1628        parts = self.parts
    1629        parent = self.parent
    1630
    1631        while parent:
    1632            if isinstance(parent, Dot):
    1633                parts.append(parent.expression)
    1634            parent = parent.parent
    1635
    1636        return Dot.build(deepcopy(parts)) if len(parts) > 1 else parts[0]

Converts the column into a dot expression.

key = 'column'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  rlike
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  desc

class ColumnPosition(Expression): View Source

    1639class ColumnPosition(Expression):
    1640    arg_types = {"this": False, "position": True}

arg_types = {'this': False, 'position': True}
key = 'columnposition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class ColumnDef(Expression): View Source

    1643class ColumnDef(Expression):
    1644    arg_types = {
    1645        "this": True,
    1646        "kind": False,
    1647        "constraints": False,
    1648        "exists": False,
    1649        "position": False,
    1650    }
    1651
    1652    @property
    1653    def constraints(self) -> t.List[ColumnConstraint]:
    1654        return self.args.get("constraints") or []
    1655
    1656    @property
    1657    def kind(self) -> t.Optional[DataType]:
    1658        return self.args.get("kind")

arg_types = {'this': True, 'kind': False, 'constraints': False, 'exists': False, 'position': False}
constraints: List[ColumnConstraint] View Source

    1652    @property
    1653    def constraints(self) -> t.List[ColumnConstraint]:
    1654        return self.args.get("constraints") or []

kind: Optional[DataType] View Source

    1656    @property
    1657    def kind(self) -> t.Optional[DataType]:
    1658        return self.args.get("kind")

key = 'columndef'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class AlterColumn(Expression): View Source

    1661class AlterColumn(Expression):
    1662    arg_types = {
    1663        "this": True,
    1664        "dtype": False,
    1665        "collate": False,
    1666        "using": False,
    1667        "default": False,
    1668        "drop": False,
    1669        "comment": False,
    1670        "allow_null": False,
    1671    }

arg_types = {'this': True, 'dtype': False, 'collate': False, 'using': False, 'default': False, 'drop': False, 'comment': False, 'allow_null': False}
key = 'altercolumn'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
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  desc

class AlterDistStyle(Expression): View Source

    1675class AlterDistStyle(Expression):
    1676    pass

key = 'alterdiststyle'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class AlterSortKey(Expression): View Source

    1679class AlterSortKey(Expression):
    1680    arg_types = {"this": False, "expressions": False, "compound": False}

arg_types = {'this': False, 'expressions': False, 'compound': False}
key = 'altersortkey'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class AlterSet(Expression): View Source

    1683class AlterSet(Expression):
    1684    arg_types = {
    1685        "expressions": False,
    1686        "option": False,
    1687        "tablespace": False,
    1688        "access_method": False,
    1689        "file_format": False,
    1690        "copy_options": False,
    1691        "tag": False,
    1692        "location": False,
    1693        "serde": False,
    1694    }

arg_types = {'expressions': False, 'option': False, 'tablespace': False, 'access_method': False, 'file_format': False, 'copy_options': False, 'tag': False, 'location': False, 'serde': False}
key = 'alterset'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
  between
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class RenameColumn(Expression): View Source

    1697class RenameColumn(Expression):
    1698    arg_types = {"this": True, "to": True, "exists": False}

arg_types = {'this': True, 'to': True, 'exists': False}
key = 'renamecolumn'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
  asc
  desc

class RenameTable(Expression): View Source

    1701class RenameTable(Expression):
    1702    pass

key = 'renametable'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  rlike
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  asc
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class SwapTable(Expression): View Source

    1705class SwapTable(Expression):
    1706    pass

key = 'swaptable'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
  between
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  rlike
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class Comment(Expression): View Source

    1709class Comment(Expression):
    1710    arg_types = {
    1711        "this": True,
    1712        "kind": True,
    1713        "expression": True,
    1714        "exists": False,
    1715        "materialized": False,
    1716    }

arg_types = {'this': True, 'kind': True, 'expression': True, 'exists': False, 'materialized': False}
key = 'comment'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Comprehension(Expression): View Source

    1719class Comprehension(Expression):
    1720    arg_types = {"this": True, "expression": True, "iterator": True, "condition": False}

arg_types = {'this': True, 'expression': True, 'iterator': True, 'condition': False}
key = 'comprehension'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  desc

class MergeTreeTTLAction(Expression): View Source

    1724class MergeTreeTTLAction(Expression):
    1725    arg_types = {
    1726        "this": True,
    1727        "delete": False,
    1728        "recompress": False,
    1729        "to_disk": False,
    1730        "to_volume": False,
    1731    }

arg_types = {'this': True, 'delete': False, 'recompress': False, 'to_disk': False, 'to_volume': False}
key = 'mergetreettlaction'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
  is_
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class MergeTreeTTL(Expression): View Source

    1735class MergeTreeTTL(Expression):
    1736    arg_types = {
    1737        "expressions": True,
    1738        "where": False,
    1739        "group": False,
    1740        "aggregates": False,
    1741    }

arg_types = {'expressions': True, 'where': False, 'group': False, 'aggregates': False}
key = 'mergetreettl'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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class IndexConstraintOption(Expression): View Source

    1745class IndexConstraintOption(Expression):
    1746    arg_types = {
    1747        "key_block_size": False,
    1748        "using": False,
    1749        "parser": False,
    1750        "comment": False,
    1751        "visible": False,
    1752        "engine_attr": False,
    1753        "secondary_engine_attr": False,
    1754    }

arg_types = {'key_block_size': False, 'using': False, 'parser': False, 'comment': False, 'visible': False, 'engine_attr': False, 'secondary_engine_attr': False}
key = 'indexconstraintoption'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
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class ColumnConstraint(Expression): View Source

    1757class ColumnConstraint(Expression):
    1758    arg_types = {"this": False, "kind": True}
    1759
    1760    @property
    1761    def kind(self) -> ColumnConstraintKind:
    1762        return self.args["kind"]

arg_types = {'this': False, 'kind': True}
kind: ColumnConstraintKind View Source

    1760    @property
    1761    def kind(self) -> ColumnConstraintKind:
    1762        return self.args["kind"]

key = 'columnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
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  find
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class ColumnConstraintKind(Expression): View Source

    1765class ColumnConstraintKind(Expression):
    1766    pass

key = 'columnconstraintkind'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
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class AutoIncrementColumnConstraint(ColumnConstraintKind): View Source

    1769class AutoIncrementColumnConstraint(ColumnConstraintKind):
    1770    pass

key = 'autoincrementcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class PeriodForSystemTimeConstraint(ColumnConstraintKind): View Source

    1773class PeriodForSystemTimeConstraint(ColumnConstraintKind):
    1774    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'periodforsystemtimeconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
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class CaseSpecificColumnConstraint(ColumnConstraintKind): View Source

    1777class CaseSpecificColumnConstraint(ColumnConstraintKind):
    1778    arg_types = {"not_": True}

arg_types = {'not_': True}
key = 'casespecificcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  walk
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class CharacterSetColumnConstraint(ColumnConstraintKind): View Source

    1781class CharacterSetColumnConstraint(ColumnConstraintKind):
    1782    arg_types = {"this": True}

arg_types = {'this': True}
key = 'charactersetcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  walk
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class CheckColumnConstraint(ColumnConstraintKind): View Source

    1785class CheckColumnConstraint(ColumnConstraintKind):
    1786    arg_types = {"this": True, "enforced": False}

arg_types = {'this': True, 'enforced': False}
key = 'checkcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  walk
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  unnest
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class ClusteredColumnConstraint(ColumnConstraintKind): View Source

    1789class ClusteredColumnConstraint(ColumnConstraintKind):
    1790    pass

key = 'clusteredcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
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class CollateColumnConstraint(ColumnConstraintKind): View Source

    1793class CollateColumnConstraint(ColumnConstraintKind):
    1794    pass

key = 'collatecolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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class CommentColumnConstraint(ColumnConstraintKind): View Source

    1797class CommentColumnConstraint(ColumnConstraintKind):
    1798    pass

key = 'commentcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  set
  depth
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  find
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class CompressColumnConstraint(ColumnConstraintKind): View Source

    1801class CompressColumnConstraint(ColumnConstraintKind):
    1802    arg_types = {"this": False}

arg_types = {'this': False}
key = 'compresscolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
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  unnest
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class DateFormatColumnConstraint(ColumnConstraintKind): View Source

    1805class DateFormatColumnConstraint(ColumnConstraintKind):
    1806    arg_types = {"this": True}

arg_types = {'this': True}
key = 'dateformatcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  same_parent
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class DefaultColumnConstraint(ColumnConstraintKind): View Source

    1809class DefaultColumnConstraint(ColumnConstraintKind):
    1810    pass

key = 'defaultcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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class EncodeColumnConstraint(ColumnConstraintKind): View Source

    1813class EncodeColumnConstraint(ColumnConstraintKind):
    1814    pass

key = 'encodecolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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class ExcludeColumnConstraint(ColumnConstraintKind): View Source

    1818class ExcludeColumnConstraint(ColumnConstraintKind):
    1819    pass

key = 'excludecolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  same_parent
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class EphemeralColumnConstraint(ColumnConstraintKind): View Source

    1822class EphemeralColumnConstraint(ColumnConstraintKind):
    1823    arg_types = {"this": False}

arg_types = {'this': False}
key = 'ephemeralcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
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class WithOperator(Expression): View Source

    1826class WithOperator(Expression):
    1827    arg_types = {"this": True, "op": True}

arg_types = {'this': True, 'op': True}
key = 'withoperator'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind): View Source

    1830class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    1831    # this: True -> ALWAYS, this: False -> BY DEFAULT
    1832    arg_types = {
    1833        "this": False,
    1834        "expression": False,
    1835        "on_null": False,
    1836        "start": False,
    1837        "increment": False,
    1838        "minvalue": False,
    1839        "maxvalue": False,
    1840        "cycle": False,
    1841    }

arg_types = {'this': False, 'expression': False, 'on_null': False, 'start': False, 'increment': False, 'minvalue': False, 'maxvalue': False, 'cycle': False}
key = 'generatedasidentitycolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
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  walk
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class GeneratedAsRowColumnConstraint(ColumnConstraintKind): View Source

    1844class GeneratedAsRowColumnConstraint(ColumnConstraintKind):
    1845    arg_types = {"start": False, "hidden": False}

arg_types = {'start': False, 'hidden': False}
key = 'generatedasrowcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
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class IndexColumnConstraint(ColumnConstraintKind): View Source

    1850class IndexColumnConstraint(ColumnConstraintKind):
    1851    arg_types = {
    1852        "this": False,
    1853        "expressions": False,
    1854        "kind": False,
    1855        "index_type": False,
    1856        "options": False,
    1857        "expression": False,  # Clickhouse
    1858        "granularity": False,
    1859    }

arg_types = {'this': False, 'expressions': False, 'kind': False, 'index_type': False, 'options': False, 'expression': False, 'granularity': False}
key = 'indexcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
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  find
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  same_parent
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class InlineLengthColumnConstraint(ColumnConstraintKind): View Source

    1862class InlineLengthColumnConstraint(ColumnConstraintKind):
    1863    pass

key = 'inlinelengthcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
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  find
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class NonClusteredColumnConstraint(ColumnConstraintKind): View Source

    1866class NonClusteredColumnConstraint(ColumnConstraintKind):
    1867    pass

key = 'nonclusteredcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class NotForReplicationColumnConstraint(ColumnConstraintKind): View Source

    1870class NotForReplicationColumnConstraint(ColumnConstraintKind):
    1871    arg_types = {}

arg_types = {}
key = 'notforreplicationcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class MaskingPolicyColumnConstraint(ColumnConstraintKind): View Source

    1875class MaskingPolicyColumnConstraint(ColumnConstraintKind):
    1876    arg_types = {"this": True, "expressions": False}

arg_types = {'this': True, 'expressions': False}
key = 'maskingpolicycolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class NotNullColumnConstraint(ColumnConstraintKind): View Source

    1879class NotNullColumnConstraint(ColumnConstraintKind):
    1880    arg_types = {"allow_null": False}

arg_types = {'allow_null': False}
key = 'notnullcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  dfs
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class OnUpdateColumnConstraint(ColumnConstraintKind): View Source

    1884class OnUpdateColumnConstraint(ColumnConstraintKind):
    1885    pass

key = 'onupdatecolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class TagColumnConstraint(ColumnConstraintKind): View Source

    1889class TagColumnConstraint(ColumnConstraintKind):
    1890    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'tagcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class TransformColumnConstraint(ColumnConstraintKind): View Source

    1894class TransformColumnConstraint(ColumnConstraintKind):
    1895    pass

key = 'transformcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
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class PrimaryKeyColumnConstraint(ColumnConstraintKind): View Source

    1898class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    1899    arg_types = {"desc": False}

arg_types = {'desc': False}
key = 'primarykeycolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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class TitleColumnConstraint(ColumnConstraintKind): View Source

    1902class TitleColumnConstraint(ColumnConstraintKind):
    1903    pass

key = 'titlecolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class UniqueColumnConstraint(ColumnConstraintKind): View Source

    1906class UniqueColumnConstraint(ColumnConstraintKind):
    1907    arg_types = {"this": False, "index_type": False, "on_conflict": False, "nulls": False}

arg_types = {'this': False, 'index_type': False, 'on_conflict': False, 'nulls': False}
key = 'uniquecolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
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  root
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  dfs
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  unnest
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class UppercaseColumnConstraint(ColumnConstraintKind): View Source

    1910class UppercaseColumnConstraint(ColumnConstraintKind):
    1911    arg_types: t.Dict[str, t.Any] = {}

arg_types: Dict[str, Any] = {}
key = 'uppercasecolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
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  bfs
  unnest
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class PathColumnConstraint(ColumnConstraintKind): View Source

    1914class PathColumnConstraint(ColumnConstraintKind):
    1915    pass

key = 'pathcolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class ProjectionPolicyColumnConstraint(ColumnConstraintKind): View Source

    1919class ProjectionPolicyColumnConstraint(ColumnConstraintKind):
    1920    pass

key = 'projectionpolicycolumnconstraint'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
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  to_s
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class ComputedColumnConstraint(ColumnConstraintKind): View Source

    1925class ComputedColumnConstraint(ColumnConstraintKind):
    1926    arg_types = {"this": True, "persisted": False, "not_null": False}

arg_types = {'this': True, 'persisted': False, 'not_null': False}
key = 'computedcolumnconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
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class Constraint(Expression): View Source

    1929class Constraint(Expression):
    1930    arg_types = {"this": True, "expressions": True}

arg_types = {'this': True, 'expressions': True}
key = 'constraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
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class Delete(DML): View Source

    1933class Delete(DML):
    1934    arg_types = {
    1935        "with": False,
    1936        "this": False,
    1937        "using": False,
    1938        "where": False,
    1939        "returning": False,
    1940        "limit": False,
    1941        "tables": False,  # Multiple-Table Syntax (MySQL)
    1942    }
    1943
    1944    def delete(
    1945        self,
    1946        table: ExpOrStr,
    1947        dialect: DialectType = None,
    1948        copy: bool = True,
    1949        **opts,
    1950    ) -> Delete:
    1951        """
    1952        Create a DELETE expression or replace the table on an existing DELETE expression.
    1953
    1954        Example:
    1955            >>> delete("tbl").sql()
    1956            'DELETE FROM tbl'
    1957
    1958        Args:
    1959            table: the table from which to delete.
    1960            dialect: the dialect used to parse the input expression.
    1961            copy: if `False`, modify this expression instance in-place.
    1962            opts: other options to use to parse the input expressions.
    1963
    1964        Returns:
    1965            Delete: the modified expression.
    1966        """
    1967        return _apply_builder(
    1968            expression=table,
    1969            instance=self,
    1970            arg="this",
    1971            dialect=dialect,
    1972            into=Table,
    1973            copy=copy,
    1974            **opts,
    1975        )
    1976
    1977    def where(
    1978        self,
    1979        *expressions: t.Optional[ExpOrStr],
    1980        append: bool = True,
    1981        dialect: DialectType = None,
    1982        copy: bool = True,
    1983        **opts,
    1984    ) -> Delete:
    1985        """
    1986        Append to or set the WHERE expressions.
    1987
    1988        Example:
    1989            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    1990            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    1991
    1992        Args:
    1993            *expressions: the SQL code strings to parse.
    1994                If an `Expression` instance is passed, it will be used as-is.
    1995                Multiple expressions are combined with an AND operator.
    1996            append: if `True`, AND the new expressions to any existing expression.
    1997                Otherwise, this resets the expression.
    1998            dialect: the dialect used to parse the input expressions.
    1999            copy: if `False`, modify this expression instance in-place.
    2000            opts: other options to use to parse the input expressions.
    2001
    2002        Returns:
    2003            Delete: the modified expression.
    2004        """
    2005        return _apply_conjunction_builder(
    2006            *expressions,
    2007            instance=self,
    2008            arg="where",
    2009            append=append,
    2010            into=Where,
    2011            dialect=dialect,
    2012            copy=copy,
    2013            **opts,
    2014        )

arg_types = {'with': False, 'this': False, 'using': False, 'where': False, 'returning': False, 'limit': False, 'tables': False}
def delete( self, table: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Delete: View Source

    1944    def delete(
    1945        self,
    1946        table: ExpOrStr,
    1947        dialect: DialectType = None,
    1948        copy: bool = True,
    1949        **opts,
    1950    ) -> Delete:
    1951        """
    1952        Create a DELETE expression or replace the table on an existing DELETE expression.
    1953
    1954        Example:
    1955            >>> delete("tbl").sql()
    1956            'DELETE FROM tbl'
    1957
    1958        Args:
    1959            table: the table from which to delete.
    1960            dialect: the dialect used to parse the input expression.
    1961            copy: if `False`, modify this expression instance in-place.
    1962            opts: other options to use to parse the input expressions.
    1963
    1964        Returns:
    1965            Delete: the modified expression.
    1966        """
    1967        return _apply_builder(
    1968            expression=table,
    1969            instance=self,
    1970            arg="this",
    1971            dialect=dialect,
    1972            into=Table,
    1973            copy=copy,
    1974            **opts,
    1975        )

Create a DELETE expression or replace the table on an existing DELETE expression.

###### Example:

>     >>> delete("tbl").sql()
>     'DELETE FROM tbl'

###### Arguments:

- table: the table from which to delete.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> Delete: the modified expression.

def where( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Delete: View Source

    1977    def where(
    1978        self,
    1979        *expressions: t.Optional[ExpOrStr],
    1980        append: bool = True,
    1981        dialect: DialectType = None,
    1982        copy: bool = True,
    1983        **opts,
    1984    ) -> Delete:
    1985        """
    1986        Append to or set the WHERE expressions.
    1987
    1988        Example:
    1989            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    1990            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    1991
    1992        Args:
    1993            *expressions: the SQL code strings to parse.
    1994                If an `Expression` instance is passed, it will be used as-is.
    1995                Multiple expressions are combined with an AND operator.
    1996            append: if `True`, AND the new expressions to any existing expression.
    1997                Otherwise, this resets the expression.
    1998            dialect: the dialect used to parse the input expressions.
    1999            copy: if `False`, modify this expression instance in-place.
    2000            opts: other options to use to parse the input expressions.
    2001
    2002        Returns:
    2003            Delete: the modified expression.
    2004        """
    2005        return _apply_conjunction_builder(
    2006            *expressions,
    2007            instance=self,
    2008            arg="where",
    2009            append=append,
    2010            into=Where,
    2011            dialect=dialect,
    2012            copy=copy,
    2013            **opts,
    2014        )

Append to or set the WHERE expressions.

###### Example:

>     >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
>     "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. Multiple expressions are combined with an AND operator.
- append: if `True`, AND the new expressions to any existing expression. Otherwise, this resets the expression.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> Delete: the modified expression.

key = 'delete'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
  asc
  desc
DML
  returning

class Drop(Expression): View Source

    2017class Drop(Expression):
    2018    arg_types = {
    2019        "this": False,
    2020        "kind": False,
    2021        "expressions": False,
    2022        "exists": False,
    2023        "temporary": False,
    2024        "materialized": False,
    2025        "cascade": False,
    2026        "constraints": False,
    2027        "purge": False,
    2028        "cluster": False,
    2029        "concurrently": False,
    2030    }
    2031
    2032    @property
    2033    def kind(self) -> t.Optional[str]:
    2034        kind = self.args.get("kind")
    2035        return kind and kind.upper()

arg_types = {'this': False, 'kind': False, 'expressions': False, 'exists': False, 'temporary': False, 'materialized': False, 'cascade': False, 'constraints': False, 'purge': False, 'cluster': False, 'concurrently': False}
kind: Optional[str] View Source

    2032    @property
    2033    def kind(self) -> t.Optional[str]:
    2034        kind = self.args.get("kind")
    2035        return kind and kind.upper()

key = 'drop'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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  asc
  desc

class Filter(Expression): View Source

    2038class Filter(Expression):
    2039    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'filter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
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  asc
  desc

class Check(Expression): View Source

    2042class Check(Expression):
    2043    pass

key = 'check'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
  asc
  desc

class Changes(Expression): View Source

    2046class Changes(Expression):
    2047    arg_types = {"information": True, "at_before": False, "end": False}

arg_types = {'information': True, 'at_before': False, 'end': False}
key = 'changes'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  rlike
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  asc
  desc

class Connect(Expression): View Source

    2051class Connect(Expression):
    2052    arg_types = {"start": False, "connect": True, "nocycle": False}

arg_types = {'start': False, 'connect': True, 'nocycle': False}
key = 'connect'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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  asc
  desc

class CopyParameter(Expression): View Source

    2055class CopyParameter(Expression):
    2056    arg_types = {"this": True, "expression": False, "expressions": False}

arg_types = {'this': True, 'expression': False, 'expressions': False}
key = 'copyparameter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
  between
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class Copy(DML): View Source

    2059class Copy(DML):
    2060    arg_types = {
    2061        "this": True,
    2062        "kind": True,
    2063        "files": True,
    2064        "credentials": False,
    2065        "format": False,
    2066        "params": False,
    2067    }

arg_types = {'this': True, 'kind': True, 'files': True, 'credentials': False, 'format': False, 'params': False}
key = 'copy'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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  rlike
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DML
  returning

class Credentials(Expression): View Source

    2070class Credentials(Expression):
    2071    arg_types = {
    2072        "credentials": False,
    2073        "encryption": False,
    2074        "storage": False,
    2075        "iam_role": False,
    2076        "region": False,
    2077    }

arg_types = {'credentials': False, 'encryption': False, 'storage': False, 'iam_role': False, 'region': False}
key = 'credentials'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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  ilike
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  rlike
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  asc
  desc

class Prior(Expression): View Source

    2080class Prior(Expression):
    2081    pass

key = 'prior'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class Directory(Expression): View Source

    2084class Directory(Expression):
    2085    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    2086    arg_types = {"this": True, "local": False, "row_format": False}

arg_types = {'this': True, 'local': False, 'row_format': False}
key = 'directory'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class ForeignKey(Expression): View Source

    2089class ForeignKey(Expression):
    2090    arg_types = {
    2091        "expressions": True,
    2092        "reference": False,
    2093        "delete": False,
    2094        "update": False,
    2095    }

arg_types = {'expressions': True, 'reference': False, 'delete': False, 'update': False}
key = 'foreignkey'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class ColumnPrefix(Expression): View Source

    2098class ColumnPrefix(Expression):
    2099    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'columnprefix'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class PrimaryKey(Expression): View Source

    2102class PrimaryKey(Expression):
    2103    arg_types = {"expressions": True, "options": False}

arg_types = {'expressions': True, 'options': False}
key = 'primarykey'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
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  dump
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class Into(Expression): View Source

    2108class Into(Expression):
    2109    arg_types = {"this": True, "temporary": False, "unlogged": False}

arg_types = {'this': True, 'temporary': False, 'unlogged': False}
key = 'into'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
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  dump
  load
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  desc

class From(Expression): View Source

    2112class From(Expression):
    2113    @property
    2114    def name(self) -> str:
    2115        return self.this.name
    2116
    2117    @property
    2118    def alias_or_name(self) -> str:
    2119        return self.this.alias_or_name

name: str View Source

    2113    @property
    2114    def name(self) -> str:
    2115        return self.this.name

alias_or_name: str View Source

    2117    @property
    2118    def alias_or_name(self) -> str:
    2119        return self.this.alias_or_name

key = 'from'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Having(Expression): View Source

    2122class Having(Expression):
    2123    pass

key = 'having'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Hint(Expression): View Source

    2126class Hint(Expression):
    2127    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'hint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JoinHint(Expression): View Source

    2130class JoinHint(Expression):
    2131    arg_types = {"this": True, "expressions": True}

arg_types = {'this': True, 'expressions': True}
key = 'joinhint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Identifier(Expression): View Source

    2134class Identifier(Expression):
    2135    arg_types = {"this": True, "quoted": False, "global": False, "temporary": False}
    2136
    2137    @property
    2138    def quoted(self) -> bool:
    2139        return bool(self.args.get("quoted"))
    2140
    2141    @property
    2142    def hashable_args(self) -> t.Any:
    2143        return (self.this, self.quoted)
    2144
    2145    @property
    2146    def output_name(self) -> str:
    2147        return self.name

arg_types = {'this': True, 'quoted': False, 'global': False, 'temporary': False}
quoted: bool View Source

    2137    @property
    2138    def quoted(self) -> bool:
    2139        return bool(self.args.get("quoted"))

hashable_args: Any View Source

    2141    @property
    2142    def hashable_args(self) -> t.Any:
    2143        return (self.this, self.quoted)

output_name: str View Source

    2145    @property
    2146    def output_name(self) -> str:
    2147        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'identifier'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Opclass(Expression): View Source

    2151class Opclass(Expression):
    2152    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'opclass'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Index(Expression): View Source

    2155class Index(Expression):
    2156    arg_types = {
    2157        "this": False,
    2158        "table": False,
    2159        "unique": False,
    2160        "primary": False,
    2161        "amp": False,  # teradata
    2162        "params": False,
    2163    }

arg_types = {'this': False, 'table': False, 'unique': False, 'primary': False, 'amp': False, 'params': False}
key = 'index'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class IndexParameters(Expression): View Source

    2166class IndexParameters(Expression):
    2167    arg_types = {
    2168        "using": False,
    2169        "include": False,
    2170        "columns": False,
    2171        "with_storage": False,
    2172        "partition_by": False,
    2173        "tablespace": False,
    2174        "where": False,
    2175        "on": False,
    2176    }

arg_types = {'using': False, 'include': False, 'columns': False, 'with_storage': False, 'partition_by': False, 'tablespace': False, 'where': False, 'on': False}
key = 'indexparameters'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Insert(DDL, DML): View Source

    2179class Insert(DDL, DML):
    2180    arg_types = {
    2181        "hint": False,
    2182        "with": False,
    2183        "is_function": False,
    2184        "this": False,
    2185        "expression": False,
    2186        "conflict": False,
    2187        "returning": False,
    2188        "overwrite": False,
    2189        "exists": False,
    2190        "alternative": False,
    2191        "where": False,
    2192        "ignore": False,
    2193        "by_name": False,
    2194        "stored": False,
    2195        "partition": False,
    2196        "settings": False,
    2197        "source": False,
    2198    }
    2199
    2200    def with_(
    2201        self,
    2202        alias: ExpOrStr,
    2203        as_: ExpOrStr,
    2204        recursive: t.Optional[bool] = None,
    2205        materialized: t.Optional[bool] = None,
    2206        append: bool = True,
    2207        dialect: DialectType = None,
    2208        copy: bool = True,
    2209        **opts,
    2210    ) -> Insert:
    2211        """
    2212        Append to or set the common table expressions.
    2213
    2214        Example:
    2215            >>> insert("SELECT x FROM cte", "t").with_("cte", as_="SELECT * FROM tbl").sql()
    2216            'WITH cte AS (SELECT * FROM tbl) INSERT INTO t SELECT x FROM cte'
    2217
    2218        Args:
    2219            alias: the SQL code string to parse as the table name.
    2220                If an `Expression` instance is passed, this is used as-is.
    2221            as_: the SQL code string to parse as the table expression.
    2222                If an `Expression` instance is passed, it will be used as-is.
    2223            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    2224            materialized: set the MATERIALIZED part of the expression.
    2225            append: if `True`, add to any existing expressions.
    2226                Otherwise, this resets the expressions.
    2227            dialect: the dialect used to parse the input expression.
    2228            copy: if `False`, modify this expression instance in-place.
    2229            opts: other options to use to parse the input expressions.
    2230
    2231        Returns:
    2232            The modified expression.
    2233        """
    2234        return _apply_cte_builder(
    2235            self,
    2236            alias,
    2237            as_,
    2238            recursive=recursive,
    2239            materialized=materialized,
    2240            append=append,
    2241            dialect=dialect,
    2242            copy=copy,
    2243            **opts,
    2244        )

arg_types = {'hint': False, 'with': False, 'is_function': False, 'this': False, 'expression': False, 'conflict': False, 'returning': False, 'overwrite': False, 'exists': False, 'alternative': False, 'where': False, 'ignore': False, 'by_name': False, 'stored': False, 'partition': False, 'settings': False, 'source': False}
def with_( self, alias: Union[str, Expression], as_: Union[str, Expression], recursive: Optional[bool] = None, materialized: Optional[bool] = None, append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Insert: View Source

    2200    def with_(
    2201        self,
    2202        alias: ExpOrStr,
    2203        as_: ExpOrStr,
    2204        recursive: t.Optional[bool] = None,
    2205        materialized: t.Optional[bool] = None,
    2206        append: bool = True,
    2207        dialect: DialectType = None,
    2208        copy: bool = True,
    2209        **opts,
    2210    ) -> Insert:
    2211        """
    2212        Append to or set the common table expressions.
    2213
    2214        Example:
    2215            >>> insert("SELECT x FROM cte", "t").with_("cte", as_="SELECT * FROM tbl").sql()
    2216            'WITH cte AS (SELECT * FROM tbl) INSERT INTO t SELECT x FROM cte'
    2217
    2218        Args:
    2219            alias: the SQL code string to parse as the table name.
    2220                If an `Expression` instance is passed, this is used as-is.
    2221            as_: the SQL code string to parse as the table expression.
    2222                If an `Expression` instance is passed, it will be used as-is.
    2223            recursive: set the RECURSIVE part of the expression. Defaults to `False`.
    2224            materialized: set the MATERIALIZED part of the expression.
    2225            append: if `True`, add to any existing expressions.
    2226                Otherwise, this resets the expressions.
    2227            dialect: the dialect used to parse the input expression.
    2228            copy: if `False`, modify this expression instance in-place.
    2229            opts: other options to use to parse the input expressions.
    2230
    2231        Returns:
    2232            The modified expression.
    2233        """
    2234        return _apply_cte_builder(
    2235            self,
    2236            alias,
    2237            as_,
    2238            recursive=recursive,
    2239            materialized=materialized,
    2240            append=append,
    2241            dialect=dialect,
    2242            copy=copy,
    2243            **opts,
    2244        )

Append to or set the common table expressions.

###### Example:

>     >>> insert("SELECT x FROM cte", "t").with_("cte", as_="SELECT * FROM tbl").sql()
>     'WITH cte AS (SELECT * FROM tbl) INSERT INTO t SELECT x FROM cte'

###### Arguments:

- alias: the SQL code string to parse as the table name. If an `Expression` instance is passed, this is used as-is.
- as_: the SQL code string to parse as the table expression. If an `Expression` instance is passed, it will be used as-is.
- recursive: set the RECURSIVE part of the expression. Defaults to `False`.
- materialized: set the MATERIALIZED part of the expression.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified expression.

key = 'insert'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
DDL
  ctes
  selects
  named_selects
DML
  returning

class ConditionalInsert(Expression): View Source

    2247class ConditionalInsert(Expression):
    2248    arg_types = {"this": True, "expression": False, "else_": False}

arg_types = {'this': True, 'expression': False, 'else_': False}
key = 'conditionalinsert'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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  neq
  rlike
  div
  asc
  desc

class MultitableInserts(Expression): View Source

    2251class MultitableInserts(Expression):
    2252    arg_types = {"expressions": True, "kind": True, "source": True}

arg_types = {'expressions': True, 'kind': True, 'source': True}
key = 'multitableinserts'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class OnConflict(Expression): View Source

    2255class OnConflict(Expression):
    2256    arg_types = {
    2257        "duplicate": False,
    2258        "expressions": False,
    2259        "action": False,
    2260        "conflict_keys": False,
    2261        "constraint": False,
    2262    }

arg_types = {'duplicate': False, 'expressions': False, 'action': False, 'conflict_keys': False, 'constraint': False}
key = 'onconflict'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class OnCondition(Expression): View Source

    2265class OnCondition(Expression):
    2266    arg_types = {"error": False, "empty": False, "null": False}

arg_types = {'error': False, 'empty': False, 'null': False}
key = 'oncondition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
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class Returning(Expression): View Source

    2269class Returning(Expression):
    2270    arg_types = {"expressions": True, "into": False}

arg_types = {'expressions': True, 'into': False}
key = 'returning'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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class Introducer(Expression): View Source

    2274class Introducer(Expression):
    2275    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'introducer'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
  between
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class National(Expression): View Source

    2279class National(Expression):
    2280    pass

key = 'national'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class LoadData(Expression): View Source

    2283class LoadData(Expression):
    2284    arg_types = {
    2285        "this": True,
    2286        "local": False,
    2287        "overwrite": False,
    2288        "inpath": True,
    2289        "partition": False,
    2290        "input_format": False,
    2291        "serde": False,
    2292    }

arg_types = {'this': True, 'local': False, 'overwrite': False, 'inpath': True, 'partition': False, 'input_format': False, 'serde': False}
key = 'loaddata'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class Partition(Expression): View Source

    2295class Partition(Expression):
    2296    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'partition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class PartitionRange(Expression): View Source

    2299class PartitionRange(Expression):
    2300    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'partitionrange'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class PartitionId(Expression): View Source

    2304class PartitionId(Expression):
    2305    pass

key = 'partitionid'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class Fetch(Expression): View Source

    2308class Fetch(Expression):
    2309    arg_types = {
    2310        "direction": False,
    2311        "count": False,
    2312        "percent": False,
    2313        "with_ties": False,
    2314    }

arg_types = {'direction': False, 'count': False, 'percent': False, 'with_ties': False}
key = 'fetch'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
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class Group(Expression): View Source

    2317class Group(Expression):
    2318    arg_types = {
    2319        "expressions": False,
    2320        "grouping_sets": False,
    2321        "cube": False,
    2322        "rollup": False,
    2323        "totals": False,
    2324        "all": False,
    2325    }

arg_types = {'expressions': False, 'grouping_sets': False, 'cube': False, 'rollup': False, 'totals': False, 'all': False}
key = 'group'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
  div
  asc
  desc

class Cube(Expression): View Source

    2328class Cube(Expression):
    2329    arg_types = {"expressions": False}

arg_types = {'expressions': False}
key = 'cube'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  asc
  desc

class Rollup(Expression): View Source

    2332class Rollup(Expression):
    2333    arg_types = {"expressions": False}

arg_types = {'expressions': False}
key = 'rollup'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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class GroupingSets(Expression): View Source

    2336class GroupingSets(Expression):
    2337    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'groupingsets'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Lambda(Expression): View Source

    2340class Lambda(Expression):
    2341    arg_types = {"this": True, "expressions": True}

arg_types = {'this': True, 'expressions': True}
key = 'lambda'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  rlike
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  desc

class Limit(Expression): View Source

    2344class Limit(Expression):
    2345    arg_types = {"this": False, "expression": True, "offset": False, "expressions": False}

arg_types = {'this': False, 'expression': True, 'offset': False, 'expressions': False}
key = 'limit'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Literal(Condition): View Source

    2348class Literal(Condition):
    2349    arg_types = {"this": True, "is_string": True}
    2350
    2351    @property
    2352    def hashable_args(self) -> t.Any:
    2353        return (self.this, self.args.get("is_string"))
    2354
    2355    @classmethod
    2356    def number(cls, number) -> Literal:
    2357        return cls(this=str(number), is_string=False)
    2358
    2359    @classmethod
    2360    def string(cls, string) -> Literal:
    2361        return cls(this=str(string), is_string=True)
    2362
    2363    @property
    2364    def output_name(self) -> str:
    2365        return self.name
    2366
    2367    def to_py(self) -> int | str | Decimal:
    2368        if self.is_number:
    2369            try:
    2370                return int(self.this)
    2371            except ValueError:
    2372                return Decimal(self.this)
    2373        return self.this

arg_types = {'this': True, 'is_string': True}
hashable_args: Any View Source

    2351    @property
    2352    def hashable_args(self) -> t.Any:
    2353        return (self.this, self.args.get("is_string"))

@classmethod
def number(cls, number) -> Literal: View Source

    2355    @classmethod
    2356    def number(cls, number) -> Literal:
    2357        return cls(this=str(number), is_string=False)

@classmethod
def string(cls, string) -> Literal: View Source

    2359    @classmethod
    2360    def string(cls, string) -> Literal:
    2361        return cls(this=str(string), is_string=True)

output_name: str View Source

    2363    @property
    2364    def output_name(self) -> str:
    2365        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

def to_py(self) -> int | str | decimal.Decimal: View Source

    2367    def to_py(self) -> int | str | Decimal:
    2368        if self.is_number:
    2369            try:
    2370                return int(self.this)
    2371            except ValueError:
    2372                return Decimal(self.this)
    2373        return self.this

Returns a Python object equivalent of the SQL node.

key = 'literal'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  this
  expression
  expressions
  text
  is_string
  is_number
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
  asc
  desc

class Join(Expression): View Source

    2376class Join(Expression):
    2377    arg_types = {
    2378        "this": True,
    2379        "on": False,
    2380        "side": False,
    2381        "kind": False,
    2382        "using": False,
    2383        "method": False,
    2384        "global": False,
    2385        "hint": False,
    2386        "match_condition": False,  # Snowflake
    2387    }
    2388
    2389    @property
    2390    def method(self) -> str:
    2391        return self.text("method").upper()
    2392
    2393    @property
    2394    def kind(self) -> str:
    2395        return self.text("kind").upper()
    2396
    2397    @property
    2398    def side(self) -> str:
    2399        return self.text("side").upper()
    2400
    2401    @property
    2402    def hint(self) -> str:
    2403        return self.text("hint").upper()
    2404
    2405    @property
    2406    def alias_or_name(self) -> str:
    2407        return self.this.alias_or_name
    2408
    2409    def on(
    2410        self,
    2411        *expressions: t.Optional[ExpOrStr],
    2412        append: bool = True,
    2413        dialect: DialectType = None,
    2414        copy: bool = True,
    2415        **opts,
    2416    ) -> Join:
    2417        """
    2418        Append to or set the ON expressions.
    2419
    2420        Example:
    2421            >>> import sqlglot
    2422            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    2423            'JOIN x ON y = 1'
    2424
    2425        Args:
    2426            *expressions: the SQL code strings to parse.
    2427                If an `Expression` instance is passed, it will be used as-is.
    2428                Multiple expressions are combined with an AND operator.
    2429            append: if `True`, AND the new expressions to any existing expression.
    2430                Otherwise, this resets the expression.
    2431            dialect: the dialect used to parse the input expressions.
    2432            copy: if `False`, modify this expression instance in-place.
    2433            opts: other options to use to parse the input expressions.
    2434
    2435        Returns:
    2436            The modified Join expression.
    2437        """
    2438        join = _apply_conjunction_builder(
    2439            *expressions,
    2440            instance=self,
    2441            arg="on",
    2442            append=append,
    2443            dialect=dialect,
    2444            copy=copy,
    2445            **opts,
    2446        )
    2447
    2448        if join.kind == "CROSS":
    2449            join.set("kind", None)
    2450
    2451        return join
    2452
    2453    def using(
    2454        self,
    2455        *expressions: t.Optional[ExpOrStr],
    2456        append: bool = True,
    2457        dialect: DialectType = None,
    2458        copy: bool = True,
    2459        **opts,
    2460    ) -> Join:
    2461        """
    2462        Append to or set the USING expressions.
    2463
    2464        Example:
    2465            >>> import sqlglot
    2466            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    2467            'JOIN x USING (foo, bla)'
    2468
    2469        Args:
    2470            *expressions: the SQL code strings to parse.
    2471                If an `Expression` instance is passed, it will be used as-is.
    2472            append: if `True`, concatenate the new expressions to the existing "using" list.
    2473                Otherwise, this resets the expression.
    2474            dialect: the dialect used to parse the input expressions.
    2475            copy: if `False`, modify this expression instance in-place.
    2476            opts: other options to use to parse the input expressions.
    2477
    2478        Returns:
    2479            The modified Join expression.
    2480        """
    2481        join = _apply_list_builder(
    2482            *expressions,
    2483            instance=self,
    2484            arg="using",
    2485            append=append,
    2486            dialect=dialect,
    2487            copy=copy,
    2488            **opts,
    2489        )
    2490
    2491        if join.kind == "CROSS":
    2492            join.set("kind", None)
    2493
    2494        return join

arg_types = {'this': True, 'on': False, 'side': False, 'kind': False, 'using': False, 'method': False, 'global': False, 'hint': False, 'match_condition': False}
method: str View Source

    2389    @property
    2390    def method(self) -> str:
    2391        return self.text("method").upper()

kind: str View Source

    2393    @property
    2394    def kind(self) -> str:
    2395        return self.text("kind").upper()

side: str View Source

    2397    @property
    2398    def side(self) -> str:
    2399        return self.text("side").upper()

hint: str View Source

    2401    @property
    2402    def hint(self) -> str:
    2403        return self.text("hint").upper()

alias_or_name: str View Source

    2405    @property
    2406    def alias_or_name(self) -> str:
    2407        return self.this.alias_or_name

def on( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Join: View Source

    2409    def on(
    2410        self,
    2411        *expressions: t.Optional[ExpOrStr],
    2412        append: bool = True,
    2413        dialect: DialectType = None,
    2414        copy: bool = True,
    2415        **opts,
    2416    ) -> Join:
    2417        """
    2418        Append to or set the ON expressions.
    2419
    2420        Example:
    2421            >>> import sqlglot
    2422            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    2423            'JOIN x ON y = 1'
    2424
    2425        Args:
    2426            *expressions: the SQL code strings to parse.
    2427                If an `Expression` instance is passed, it will be used as-is.
    2428                Multiple expressions are combined with an AND operator.
    2429            append: if `True`, AND the new expressions to any existing expression.
    2430                Otherwise, this resets the expression.
    2431            dialect: the dialect used to parse the input expressions.
    2432            copy: if `False`, modify this expression instance in-place.
    2433            opts: other options to use to parse the input expressions.
    2434
    2435        Returns:
    2436            The modified Join expression.
    2437        """
    2438        join = _apply_conjunction_builder(
    2439            *expressions,
    2440            instance=self,
    2441            arg="on",
    2442            append=append,
    2443            dialect=dialect,
    2444            copy=copy,
    2445            **opts,
    2446        )
    2447
    2448        if join.kind == "CROSS":
    2449            join.set("kind", None)
    2450
    2451        return join

Append to or set the ON expressions.

###### Example:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
>     'JOIN x ON y = 1'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. Multiple expressions are combined with an AND operator.
- append: if `True`, AND the new expressions to any existing expression. Otherwise, this resets the expression.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Join expression.

def using( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Join: View Source

    2453    def using(
    2454        self,
    2455        *expressions: t.Optional[ExpOrStr],
    2456        append: bool = True,
    2457        dialect: DialectType = None,
    2458        copy: bool = True,
    2459        **opts,
    2460    ) -> Join:
    2461        """
    2462        Append to or set the USING expressions.
    2463
    2464        Example:
    2465            >>> import sqlglot
    2466            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    2467            'JOIN x USING (foo, bla)'
    2468
    2469        Args:
    2470            *expressions: the SQL code strings to parse.
    2471                If an `Expression` instance is passed, it will be used as-is.
    2472            append: if `True`, concatenate the new expressions to the existing "using" list.
    2473                Otherwise, this resets the expression.
    2474            dialect: the dialect used to parse the input expressions.
    2475            copy: if `False`, modify this expression instance in-place.
    2476            opts: other options to use to parse the input expressions.
    2477
    2478        Returns:
    2479            The modified Join expression.
    2480        """
    2481        join = _apply_list_builder(
    2482            *expressions,
    2483            instance=self,
    2484            arg="using",
    2485            append=append,
    2486            dialect=dialect,
    2487            copy=copy,
    2488            **opts,
    2489        )
    2490
    2491        if join.kind == "CROSS":
    2492            join.set("kind", None)
    2493
    2494        return join

Append to or set the USING expressions.

###### Example:

>     >>> import sqlglot
>     >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
>     'JOIN x USING (foo, bla)'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, concatenate the new expressions to the existing "using" list. Otherwise, this resets the expression.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Join expression.

key = 'join'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Lateral(UDTF): View Source

    2497class Lateral(UDTF):
    2498    arg_types = {
    2499        "this": True,
    2500        "view": False,
    2501        "outer": False,
    2502        "alias": False,
    2503        "cross_apply": False,  # True -> CROSS APPLY, False -> OUTER APPLY
    2504    }

arg_types = {'this': True, 'view': False, 'outer': False, 'alias': False, 'cross_apply': False}
key = 'lateral'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
UDTF
  selects
DerivedTable
  named_selects

class MatchRecognizeMeasure(Expression): View Source

    2507class MatchRecognizeMeasure(Expression):
    2508    arg_types = {
    2509        "this": True,
    2510        "window_frame": False,
    2511    }

arg_types = {'this': True, 'window_frame': False}
key = 'matchrecognizemeasure'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class MatchRecognize(Expression): View Source

    2514class MatchRecognize(Expression):
    2515    arg_types = {
    2516        "partition_by": False,
    2517        "order": False,
    2518        "measures": False,
    2519        "rows": False,
    2520        "after": False,
    2521        "pattern": False,
    2522        "define": False,
    2523        "alias": False,
    2524    }

arg_types = {'partition_by': False, 'order': False, 'measures': False, 'rows': False, 'after': False, 'pattern': False, 'define': False, 'alias': False}
key = 'matchrecognize'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Final(Expression): View Source

    2529class Final(Expression):
    2530    pass

key = 'final'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Offset(Expression): View Source

    2533class Offset(Expression):
    2534    arg_types = {"this": False, "expression": True, "expressions": False}

arg_types = {'this': False, 'expression': True, 'expressions': False}
key = 'offset'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Order(Expression): View Source

    2537class Order(Expression):
    2538    arg_types = {"this": False, "expressions": True, "siblings": False}

arg_types = {'this': False, 'expressions': True, 'siblings': False}
key = 'order'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class WithFill(Expression): View Source

    2542class WithFill(Expression):
    2543    arg_types = {
    2544        "from": False,
    2545        "to": False,
    2546        "step": False,
    2547        "interpolate": False,
    2548    }

arg_types = {'from': False, 'to': False, 'step': False, 'interpolate': False}
key = 'withfill'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Cluster(Order): View Source

    2553class Cluster(Order):
    2554    pass

key = 'cluster'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Order
  arg_types

class Distribute(Order): View Source

    2557class Distribute(Order):
    2558    pass

key = 'distribute'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Order
  arg_types

class Sort(Order): View Source

    2561class Sort(Order):
    2562    pass

key = 'sort'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Order
  arg_types

class Ordered(Expression): View Source

    2565class Ordered(Expression):
    2566    arg_types = {"this": True, "desc": False, "nulls_first": True, "with_fill": False}

arg_types = {'this': True, 'desc': False, 'nulls_first': True, 'with_fill': False}
key = 'ordered'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Property(Expression): View Source

    2569class Property(Expression):
    2570    arg_types = {"this": True, "value": True}

arg_types = {'this': True, 'value': True}
key = 'property'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
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  neq
  rlike
  div
  asc
  desc

class AllowedValuesProperty(Expression): View Source

    2573class AllowedValuesProperty(Expression):
    2574    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'allowedvaluesproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
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class AlgorithmProperty(Property): View Source

    2577class AlgorithmProperty(Property):
    2578    arg_types = {"this": True}

arg_types = {'this': True}
key = 'algorithmproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
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  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
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class AutoIncrementProperty(Property): View Source

    2581class AutoIncrementProperty(Property):
    2582    arg_types = {"this": True}

arg_types = {'this': True}
key = 'autoincrementproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  bfs
  unnest
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  flatten
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class AutoRefreshProperty(Property): View Source

    2586class AutoRefreshProperty(Property):
    2587    arg_types = {"this": True}

arg_types = {'this': True}
key = 'autorefreshproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  flatten
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  transform
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class BackupProperty(Property): View Source

    2590class BackupProperty(Property):
    2591    arg_types = {"this": True}

arg_types = {'this': True}
key = 'backupproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  flatten
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  transform
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class BlockCompressionProperty(Property): View Source

    2594class BlockCompressionProperty(Property):
    2595    arg_types = {
    2596        "autotemp": False,
    2597        "always": False,
    2598        "default": False,
    2599        "manual": False,
    2600        "never": False,
    2601    }

arg_types = {'autotemp': False, 'always': False, 'default': False, 'manual': False, 'never': False}
key = 'blockcompressionproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
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class CharacterSetProperty(Property): View Source

    2604class CharacterSetProperty(Property):
    2605    arg_types = {"this": True, "default": True}

arg_types = {'this': True, 'default': True}
key = 'charactersetproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  sql
  transform
  replace
  pop
  assert_is
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class ChecksumProperty(Property): View Source

    2608class ChecksumProperty(Property):
    2609    arg_types = {"on": False, "default": False}

arg_types = {'on': False, 'default': False}
key = 'checksumproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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class CollateProperty(Property): View Source

    2612class CollateProperty(Property):
    2613    arg_types = {"this": True, "default": False}

arg_types = {'this': True, 'default': False}
key = 'collateproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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class CopyGrantsProperty(Property): View Source

    2616class CopyGrantsProperty(Property):
    2617    arg_types = {}

arg_types = {}
key = 'copygrantsproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
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class DataBlocksizeProperty(Property): View Source

    2620class DataBlocksizeProperty(Property):
    2621    arg_types = {
    2622        "size": False,
    2623        "units": False,
    2624        "minimum": False,
    2625        "maximum": False,
    2626        "default": False,
    2627    }

arg_types = {'size': False, 'units': False, 'minimum': False, 'maximum': False, 'default': False}
key = 'datablocksizeproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class DataDeletionProperty(Property): View Source

    2630class DataDeletionProperty(Property):
    2631    arg_types = {"on": True, "filter_col": False, "retention_period": False}

arg_types = {'on': True, 'filter_col': False, 'retention_period': False}
key = 'datadeletionproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
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  unnest
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class DefinerProperty(Property): View Source

    2634class DefinerProperty(Property):
    2635    arg_types = {"this": True}

arg_types = {'this': True}
key = 'definerproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class DistKeyProperty(Property): View Source

    2638class DistKeyProperty(Property):
    2639    arg_types = {"this": True}

arg_types = {'this': True}
key = 'distkeyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
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class DistributedByProperty(Property): View Source

    2644class DistributedByProperty(Property):
    2645    arg_types = {"expressions": False, "kind": True, "buckets": False, "order": False}

arg_types = {'expressions': False, 'kind': True, 'buckets': False, 'order': False}
key = 'distributedbyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  sql
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  pop
  assert_is
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class DistStyleProperty(Property): View Source

    2648class DistStyleProperty(Property):
    2649    arg_types = {"this": True}

arg_types = {'this': True}
key = 'diststyleproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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class DuplicateKeyProperty(Property): View Source

    2652class DuplicateKeyProperty(Property):
    2653    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'duplicatekeyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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class EngineProperty(Property): View Source

    2656class EngineProperty(Property):
    2657    arg_types = {"this": True}

arg_types = {'this': True}
key = 'engineproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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class HeapProperty(Property): View Source

    2660class HeapProperty(Property):
    2661    arg_types = {}

arg_types = {}
key = 'heapproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
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class ToTableProperty(Property): View Source

    2664class ToTableProperty(Property):
    2665    arg_types = {"this": True}

arg_types = {'this': True}
key = 'totableproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  sql
  transform
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  pop
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class ExecuteAsProperty(Property): View Source

    2668class ExecuteAsProperty(Property):
    2669    arg_types = {"this": True}

arg_types = {'this': True}
key = 'executeasproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  desc

class ExternalProperty(Property): View Source

    2672class ExternalProperty(Property):
    2673    arg_types = {"this": False}

arg_types = {'this': False}
key = 'externalproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  ilike
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  desc

class FallbackProperty(Property): View Source

    2676class FallbackProperty(Property):
    2677    arg_types = {"no": True, "protection": False}

arg_types = {'no': True, 'protection': False}
key = 'fallbackproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  ilike
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  neq
  rlike
  div
  asc
  desc

class FileFormatProperty(Property): View Source

    2680class FileFormatProperty(Property):
    2681    arg_types = {"this": True}

arg_types = {'this': True}
key = 'fileformatproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
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  ilike
  eq
  neq
  rlike
  div
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  desc

class FreespaceProperty(Property): View Source

    2684class FreespaceProperty(Property):
    2685    arg_types = {"this": True, "percent": False}

arg_types = {'this': True, 'percent': False}
key = 'freespaceproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class GlobalProperty(Property): View Source

    2688class GlobalProperty(Property):
    2689    arg_types = {}

arg_types = {}
key = 'globalproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  asc
  desc

class IcebergProperty(Property): View Source

    2692class IcebergProperty(Property):
    2693    arg_types = {}

arg_types = {}
key = 'icebergproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
  between
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  desc

class InheritsProperty(Property): View Source

    2696class InheritsProperty(Property):
    2697    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'inheritsproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  div
  asc
  desc

class InputModelProperty(Property): View Source

    2700class InputModelProperty(Property):
    2701    arg_types = {"this": True}

arg_types = {'this': True}
key = 'inputmodelproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  desc

class OutputModelProperty(Property): View Source

    2704class OutputModelProperty(Property):
    2705    arg_types = {"this": True}

arg_types = {'this': True}
key = 'outputmodelproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  desc

class IsolatedLoadingProperty(Property): View Source

    2708class IsolatedLoadingProperty(Property):
    2709    arg_types = {"no": False, "concurrent": False, "target": False}

arg_types = {'no': False, 'concurrent': False, 'target': False}
key = 'isolatedloadingproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  desc

class JournalProperty(Property): View Source

    2712class JournalProperty(Property):
    2713    arg_types = {
    2714        "no": False,
    2715        "dual": False,
    2716        "before": False,
    2717        "local": False,
    2718        "after": False,
    2719    }

arg_types = {'no': False, 'dual': False, 'before': False, 'local': False, 'after': False}
key = 'journalproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
  desc

class LanguageProperty(Property): View Source

    2722class LanguageProperty(Property):
    2723    arg_types = {"this": True}

arg_types = {'this': True}
key = 'languageproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  isin
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  desc

class ClusteredByProperty(Property): View Source

    2727class ClusteredByProperty(Property):
    2728    arg_types = {"expressions": True, "sorted_by": False, "buckets": True}

arg_types = {'expressions': True, 'sorted_by': False, 'buckets': True}
key = 'clusteredbyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
  desc

class DictProperty(Property): View Source

    2731class DictProperty(Property):
    2732    arg_types = {"this": True, "kind": True, "settings": False}

arg_types = {'this': True, 'kind': True, 'settings': False}
key = 'dictproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
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  desc

class DictSubProperty(Property): View Source

    2735class DictSubProperty(Property):
    2736    pass

key = 'dictsubproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  asc
  desc
Property
  arg_types

class DictRange(Property): View Source

    2739class DictRange(Property):
    2740    arg_types = {"this": True, "min": True, "max": True}

arg_types = {'this': True, 'min': True, 'max': True}
key = 'dictrange'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
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  div
  asc
  desc

class DynamicProperty(Property): View Source

    2743class DynamicProperty(Property):
    2744    arg_types = {}

arg_types = {}
key = 'dynamicproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  asc
  desc

class OnCluster(Property): View Source

    2749class OnCluster(Property):
    2750    arg_types = {"this": True}

arg_types = {'this': True}
key = 'oncluster'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
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class EmptyProperty(Property): View Source

    2754class EmptyProperty(Property):
    2755    arg_types = {}

arg_types = {}
key = 'emptyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class LikeProperty(Property): View Source

    2758class LikeProperty(Property):
    2759    arg_types = {"this": True, "expressions": False}

arg_types = {'this': True, 'expressions': False}
key = 'likeproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  transform
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class LocationProperty(Property): View Source

    2762class LocationProperty(Property):
    2763    arg_types = {"this": True}

arg_types = {'this': True}
key = 'locationproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  flatten
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  transform
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class LockProperty(Property): View Source

    2766class LockProperty(Property):
    2767    arg_types = {"this": True}

arg_types = {'this': True}
key = 'lockproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class LockingProperty(Property): View Source

    2770class LockingProperty(Property):
    2771    arg_types = {
    2772        "this": False,
    2773        "kind": True,
    2774        "for_or_in": False,
    2775        "lock_type": True,
    2776        "override": False,
    2777    }

arg_types = {'this': False, 'kind': True, 'for_or_in': False, 'lock_type': True, 'override': False}
key = 'lockingproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  unnest
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class LogProperty(Property): View Source

    2780class LogProperty(Property):
    2781    arg_types = {"no": True}

arg_types = {'no': True}
key = 'logproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  root
  walk
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  unalias
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class MaterializedProperty(Property): View Source

    2784class MaterializedProperty(Property):
    2785    arg_types = {"this": False}

arg_types = {'this': False}
key = 'materializedproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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class MergeBlockRatioProperty(Property): View Source

    2788class MergeBlockRatioProperty(Property):
    2789    arg_types = {"this": False, "no": False, "default": False, "percent": False}

arg_types = {'this': False, 'no': False, 'default': False, 'percent': False}
key = 'mergeblockratioproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class NoPrimaryIndexProperty(Property): View Source

    2792class NoPrimaryIndexProperty(Property):
    2793    arg_types = {}

arg_types = {}
key = 'noprimaryindexproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  bfs
  unnest
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class OnProperty(Property): View Source

    2796class OnProperty(Property):
    2797    arg_types = {"this": True}

arg_types = {'this': True}
key = 'onproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
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  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  unnest
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class OnCommitProperty(Property): View Source

    2800class OnCommitProperty(Property):
    2801    arg_types = {"delete": False}

arg_types = {'delete': False}
key = 'oncommitproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class PartitionedByProperty(Property): View Source

    2804class PartitionedByProperty(Property):
    2805    arg_types = {"this": True}

arg_types = {'this': True}
key = 'partitionedbyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class PartitionBoundSpec(Expression): View Source

    2809class PartitionBoundSpec(Expression):
    2810    # this -> IN / MODULUS, expression -> REMAINDER, from_expressions -> FROM (...), to_expressions -> TO (...)
    2811    arg_types = {
    2812        "this": False,
    2813        "expression": False,
    2814        "from_expressions": False,
    2815        "to_expressions": False,
    2816    }

arg_types = {'this': False, 'expression': False, 'from_expressions': False, 'to_expressions': False}
key = 'partitionboundspec'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  bfs
  unnest
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class PartitionedOfProperty(Property): View Source

    2819class PartitionedOfProperty(Property):
    2820    # this -> parent_table (schema), expression -> FOR VALUES ... / DEFAULT
    2821    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'partitionedofproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  same_parent
  root
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class StreamingTableProperty(Property): View Source

    2824class StreamingTableProperty(Property):
    2825    arg_types = {}

arg_types = {}
key = 'streamingtableproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
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  same_parent
  root
  walk
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  bfs
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class RemoteWithConnectionModelProperty(Property): View Source

    2828class RemoteWithConnectionModelProperty(Property):
    2829    arg_types = {"this": True}

arg_types = {'this': True}
key = 'remotewithconnectionmodelproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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  bfs
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class ReturnsProperty(Property): View Source

    2832class ReturnsProperty(Property):
    2833    arg_types = {"this": False, "is_table": False, "table": False, "null": False}

arg_types = {'this': False, 'is_table': False, 'table': False, 'null': False}
key = 'returnsproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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class StrictProperty(Property): View Source

    2836class StrictProperty(Property):
    2837    arg_types = {}

arg_types = {}
key = 'strictproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
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class RowFormatProperty(Property): View Source

    2840class RowFormatProperty(Property):
    2841    arg_types = {"this": True}

arg_types = {'this': True}
key = 'rowformatproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  unnest_operands
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  load
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class RowFormatDelimitedProperty(Property): View Source

    2844class RowFormatDelimitedProperty(Property):
    2845    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    2846    arg_types = {
    2847        "fields": False,
    2848        "escaped": False,
    2849        "collection_items": False,
    2850        "map_keys": False,
    2851        "lines": False,
    2852        "null": False,
    2853        "serde": False,
    2854    }

arg_types = {'fields': False, 'escaped': False, 'collection_items': False, 'map_keys': False, 'lines': False, 'null': False, 'serde': False}
key = 'rowformatdelimitedproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class RowFormatSerdeProperty(Property): View Source

    2857class RowFormatSerdeProperty(Property):
    2858    arg_types = {"this": True, "serde_properties": False}

arg_types = {'this': True, 'serde_properties': False}
key = 'rowformatserdeproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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class QueryTransform(Expression): View Source

    2862class QueryTransform(Expression):
    2863    arg_types = {
    2864        "expressions": True,
    2865        "command_script": True,
    2866        "schema": False,
    2867        "row_format_before": False,
    2868        "record_writer": False,
    2869        "row_format_after": False,
    2870        "record_reader": False,
    2871    }

arg_types = {'expressions': True, 'command_script': True, 'schema': False, 'row_format_before': False, 'record_writer': False, 'row_format_after': False, 'record_reader': False}
key = 'querytransform'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class SampleProperty(Property): View Source

    2874class SampleProperty(Property):
    2875    arg_types = {"this": True}

arg_types = {'this': True}
key = 'sampleproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
  like
  ilike
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  neq
  rlike
  div
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  desc

class SecurityProperty(Property): View Source

    2879class SecurityProperty(Property):
    2880    arg_types = {"this": True}

arg_types = {'this': True}
key = 'securityproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
  like
  ilike
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  neq
  rlike
  div
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  desc

class SchemaCommentProperty(Property): View Source

    2883class SchemaCommentProperty(Property):
    2884    arg_types = {"this": True}

arg_types = {'this': True}
key = 'schemacommentproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
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class SerdeProperties(Property): View Source

    2887class SerdeProperties(Property):
    2888    arg_types = {"expressions": True, "with": False}

arg_types = {'expressions': True, 'with': False}
key = 'serdeproperties'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  rlike
  div
  asc
  desc

class SetProperty(Property): View Source

    2891class SetProperty(Property):
    2892    arg_types = {"multi": True}

arg_types = {'multi': True}
key = 'setproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
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class SharingProperty(Property): View Source

    2895class SharingProperty(Property):
    2896    arg_types = {"this": False}

arg_types = {'this': False}
key = 'sharingproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
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class SetConfigProperty(Property): View Source

    2899class SetConfigProperty(Property):
    2900    arg_types = {"this": True}

arg_types = {'this': True}
key = 'setconfigproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  rlike
  div
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  desc

class SettingsProperty(Property): View Source

    2903class SettingsProperty(Property):
    2904    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'settingsproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class SortKeyProperty(Property): View Source

    2907class SortKeyProperty(Property):
    2908    arg_types = {"this": True, "compound": False}

arg_types = {'this': True, 'compound': False}
key = 'sortkeyproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  as_
  isin
  between
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  div
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  desc

class SqlReadWriteProperty(Property): View Source

    2911class SqlReadWriteProperty(Property):
    2912    arg_types = {"this": True}

arg_types = {'this': True}
key = 'sqlreadwriteproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
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  desc

class SqlSecurityProperty(Property): View Source

    2915class SqlSecurityProperty(Property):
    2916    arg_types = {"definer": True}

arg_types = {'definer': True}
key = 'sqlsecurityproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
  not_
  as_
  isin
  between
  is_
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  ilike
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  div
  asc
  desc

class StabilityProperty(Property): View Source

    2919class StabilityProperty(Property):
    2920    arg_types = {"this": True}

arg_types = {'this': True}
key = 'stabilityproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TemporaryProperty(Property): View Source

    2923class TemporaryProperty(Property):
    2924    arg_types = {"this": False}

arg_types = {'this': False}
key = 'temporaryproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
  not_
  as_
  isin
  between
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  neq
  rlike
  div
  asc
  desc

class SecureProperty(Property): View Source

    2927class SecureProperty(Property):
    2928    arg_types = {}

arg_types = {}
key = 'secureproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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  div
  asc
  desc

class TransformModelProperty(Property): View Source

    2931class TransformModelProperty(Property):
    2932    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'transformmodelproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  as_
  isin
  between
  is_
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  ilike
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  div
  asc
  desc

class TransientProperty(Property): View Source

    2935class TransientProperty(Property):
    2936    arg_types = {"this": False}

arg_types = {'this': False}
key = 'transientproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
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class UnloggedProperty(Property): View Source

    2939class UnloggedProperty(Property):
    2940    arg_types = {}

arg_types = {}
key = 'unloggedproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
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class ViewAttributeProperty(Property): View Source

    2944class ViewAttributeProperty(Property):
    2945    arg_types = {"this": True}

arg_types = {'this': True}
key = 'viewattributeproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
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class VolatileProperty(Property): View Source

    2948class VolatileProperty(Property):
    2949    arg_types = {"this": False}

arg_types = {'this': False}
key = 'volatileproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
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  dump
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class WithDataProperty(Property): View Source

    2952class WithDataProperty(Property):
    2953    arg_types = {"no": True, "statistics": False}

arg_types = {'no': True, 'statistics': False}
key = 'withdataproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
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class WithJournalTableProperty(Property): View Source

    2956class WithJournalTableProperty(Property):
    2957    arg_types = {"this": True}

arg_types = {'this': True}
key = 'withjournaltableproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
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class WithSchemaBindingProperty(Property): View Source

    2960class WithSchemaBindingProperty(Property):
    2961    arg_types = {"this": True}

arg_types = {'this': True}
key = 'withschemabindingproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
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  transform
  replace
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class WithSystemVersioningProperty(Property): View Source

    2964class WithSystemVersioningProperty(Property):
    2965    arg_types = {
    2966        "on": False,
    2967        "this": False,
    2968        "data_consistency": False,
    2969        "retention_period": False,
    2970        "with": True,
    2971    }

arg_types = {'on': False, 'this': False, 'data_consistency': False, 'retention_period': False, 'with': True}
key = 'withsystemversioningproperty'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Properties(Expression): View Source

    2974class Properties(Expression):
    2975    arg_types = {"expressions": True}
    2976
    2977    NAME_TO_PROPERTY = {
    2978        "ALGORITHM": AlgorithmProperty,
    2979        "AUTO_INCREMENT": AutoIncrementProperty,
    2980        "CHARACTER SET": CharacterSetProperty,
    2981        "CLUSTERED_BY": ClusteredByProperty,
    2982        "COLLATE": CollateProperty,
    2983        "COMMENT": SchemaCommentProperty,
    2984        "DEFINER": DefinerProperty,
    2985        "DISTKEY": DistKeyProperty,
    2986        "DISTRIBUTED_BY": DistributedByProperty,
    2987        "DISTSTYLE": DistStyleProperty,
    2988        "ENGINE": EngineProperty,
    2989        "EXECUTE AS": ExecuteAsProperty,
    2990        "FORMAT": FileFormatProperty,
    2991        "LANGUAGE": LanguageProperty,
    2992        "LOCATION": LocationProperty,
    2993        "LOCK": LockProperty,
    2994        "PARTITIONED_BY": PartitionedByProperty,
    2995        "RETURNS": ReturnsProperty,
    2996        "ROW_FORMAT": RowFormatProperty,
    2997        "SORTKEY": SortKeyProperty,
    2998    }
    2999
    3000    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    3001
    3002    # CREATE property locations
    3003    # Form: schema specified
    3004    #   create [POST_CREATE]
    3005    #     table a [POST_NAME]
    3006    #     (b int) [POST_SCHEMA]
    3007    #     with ([POST_WITH])
    3008    #     index (b) [POST_INDEX]
    3009    #
    3010    # Form: alias selection
    3011    #   create [POST_CREATE]
    3012    #     table a [POST_NAME]
    3013    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    3014    #     index (c) [POST_INDEX]
    3015    class Location(AutoName):
    3016        POST_CREATE = auto()
    3017        POST_NAME = auto()
    3018        POST_SCHEMA = auto()
    3019        POST_WITH = auto()
    3020        POST_ALIAS = auto()
    3021        POST_EXPRESSION = auto()
    3022        POST_INDEX = auto()
    3023        UNSUPPORTED = auto()
    3024
    3025    @classmethod
    3026    def from_dict(cls, properties_dict: t.Dict) -> Properties:
    3027        expressions = []
    3028        for key, value in properties_dict.items():
    3029            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    3030            if property_cls:
    3031                expressions.append(property_cls(this=convert(value)))
    3032            else:
    3033                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    3034
    3035        return cls(expressions=expressions)

arg_types = {'expressions': True}
NAME_TO_PROPERTY = {'ALGORITHM': <class 'AlgorithmProperty'>, 'AUTO_INCREMENT': <class 'AutoIncrementProperty'>, 'CHARACTER SET': <class 'CharacterSetProperty'>, 'CLUSTERED_BY': <class 'ClusteredByProperty'>, 'COLLATE': <class 'CollateProperty'>, 'COMMENT': <class 'SchemaCommentProperty'>, 'DEFINER': <class 'DefinerProperty'>, 'DISTKEY': <class 'DistKeyProperty'>, 'DISTRIBUTED_BY': <class 'DistributedByProperty'>, 'DISTSTYLE': <class 'DistStyleProperty'>, 'ENGINE': <class 'EngineProperty'>, 'EXECUTE AS': <class 'ExecuteAsProperty'>, 'FORMAT': <class 'FileFormatProperty'>, 'LANGUAGE': <class 'LanguageProperty'>, 'LOCATION': <class 'LocationProperty'>, 'LOCK': <class 'LockProperty'>, 'PARTITIONED_BY': <class 'PartitionedByProperty'>, 'RETURNS': <class 'ReturnsProperty'>, 'ROW_FORMAT': <class 'RowFormatProperty'>, 'SORTKEY': <class 'SortKeyProperty'>}
PROPERTY_TO_NAME = {<class 'AlgorithmProperty'>: 'ALGORITHM', <class 'AutoIncrementProperty'>: 'AUTO_INCREMENT', <class 'CharacterSetProperty'>: 'CHARACTER SET', <class 'ClusteredByProperty'>: 'CLUSTERED_BY', <class 'CollateProperty'>: 'COLLATE', <class 'SchemaCommentProperty'>: 'COMMENT', <class 'DefinerProperty'>: 'DEFINER', <class 'DistKeyProperty'>: 'DISTKEY', <class 'DistributedByProperty'>: 'DISTRIBUTED_BY', <class 'DistStyleProperty'>: 'DISTSTYLE', <class 'EngineProperty'>: 'ENGINE', <class 'ExecuteAsProperty'>: 'EXECUTE AS', <class 'FileFormatProperty'>: 'FORMAT', <class 'LanguageProperty'>: 'LANGUAGE', <class 'LocationProperty'>: 'LOCATION', <class 'LockProperty'>: 'LOCK', <class 'PartitionedByProperty'>: 'PARTITIONED_BY', <class 'ReturnsProperty'>: 'RETURNS', <class 'RowFormatProperty'>: 'ROW_FORMAT', <class 'SortKeyProperty'>: 'SORTKEY'}
@classmethod
def from_dict(cls, properties_dict: Dict) -> Properties: View Source

    3025    @classmethod
    3026    def from_dict(cls, properties_dict: t.Dict) -> Properties:
    3027        expressions = []
    3028        for key, value in properties_dict.items():
    3029            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    3030            if property_cls:
    3031                expressions.append(property_cls(this=convert(value)))
    3032            else:
    3033                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    3034
    3035        return cls(expressions=expressions)

key = 'properties'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Properties.Location(sqlglot.helper.AutoName): View Source

    3015    class Location(AutoName):
    3016        POST_CREATE = auto()
    3017        POST_NAME = auto()
    3018        POST_SCHEMA = auto()
    3019        POST_WITH = auto()
    3020        POST_ALIAS = auto()
    3021        POST_EXPRESSION = auto()
    3022        POST_INDEX = auto()
    3023        UNSUPPORTED = auto()

An enumeration.

POST_CREATE = <Location.POST_CREATE: 'POST_CREATE'>
POST_NAME = <Location.POST_NAME: 'POST_NAME'>
POST_SCHEMA = <Location.POST_SCHEMA: 'POST_SCHEMA'>
POST_WITH = <Location.POST_WITH: 'POST_WITH'>
POST_ALIAS = <Location.POST_ALIAS: 'POST_ALIAS'>
POST_EXPRESSION = <Location.POST_EXPRESSION: 'POST_EXPRESSION'>
POST_INDEX = <Location.POST_INDEX: 'POST_INDEX'>
UNSUPPORTED = <Location.UNSUPPORTED: 'UNSUPPORTED'>

##### Inherited Members

enum.Enum
  name
  value

class Qualify(Expression): View Source

    3038class Qualify(Expression):
    3039    pass

key = 'qualify'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class InputOutputFormat(Expression): View Source

    3042class InputOutputFormat(Expression):
    3043    arg_types = {"input_format": False, "output_format": False}

arg_types = {'input_format': False, 'output_format': False}
key = 'inputoutputformat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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  ilike
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  rlike
  div
  asc
  desc

class Return(Expression): View Source

    3047class Return(Expression):
    3048    pass

key = 'return'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
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  ilike
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  rlike
  div
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  desc

class Reference(Expression): View Source

    3051class Reference(Expression):
    3052    arg_types = {"this": True, "expressions": False, "options": False}

arg_types = {'this': True, 'expressions': False, 'options': False}
key = 'reference'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Tuple(Expression): View Source

    3055class Tuple(Expression):
    3056    arg_types = {"expressions": False}
    3057
    3058    def isin(
    3059        self,
    3060        *expressions: t.Any,
    3061        query: t.Optional[ExpOrStr] = None,
    3062        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
    3063        copy: bool = True,
    3064        **opts,
    3065    ) -> In:
    3066        return In(
    3067            this=maybe_copy(self, copy),
    3068            expressions=[convert(e, copy=copy) for e in expressions],
    3069            query=maybe_parse(query, copy=copy, **opts) if query else None,
    3070            unnest=(
    3071                Unnest(
    3072                    expressions=[
    3073                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
    3074                        for e in ensure_list(unnest)
    3075                    ]
    3076                )
    3077                if unnest
    3078                else None
    3079            ),
    3080        )

arg_types = {'expressions': False}
def isin( self, *expressions: Any, query: Union[str, Expression, NoneType] = None, unnest: Union[str, Expression, NoneType, Collection[Union[str, Expression]]] = None, copy: bool = True, **opts) -> In: View Source

    3058    def isin(
    3059        self,
    3060        *expressions: t.Any,
    3061        query: t.Optional[ExpOrStr] = None,
    3062        unnest: t.Optional[ExpOrStr] | t.Collection[ExpOrStr] = None,
    3063        copy: bool = True,
    3064        **opts,
    3065    ) -> In:
    3066        return In(
    3067            this=maybe_copy(self, copy),
    3068            expressions=[convert(e, copy=copy) for e in expressions],
    3069            query=maybe_parse(query, copy=copy, **opts) if query else None,
    3070            unnest=(
    3071                Unnest(
    3072                    expressions=[
    3073                        maybe_parse(t.cast(ExpOrStr, e), copy=copy, **opts)
    3074                        for e in ensure_list(unnest)
    3075                    ]
    3076                )
    3077                if unnest
    3078                else None
    3079            ),
    3080        )

key = 'tuple'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
  desc

QUERY_MODIFIERS = {'match': False, 'laterals': False, 'joins': False, 'connect': False, 'pivots': False, 'prewhere': False, 'where': False, 'group': False, 'having': False, 'qualify': False, 'windows': False, 'distribute': False, 'sort': False, 'cluster': False, 'order': False, 'limit': False, 'offset': False, 'locks': False, 'sample': False, 'settings': False, 'format': False, 'options': False}
class QueryOption(Expression): View Source

    3111class QueryOption(Expression):
    3112    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'queryoption'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class WithTableHint(Expression): View Source

    3116class WithTableHint(Expression):
    3117    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'withtablehint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class IndexTableHint(Expression): View Source

    3121class IndexTableHint(Expression):
    3122    arg_types = {"this": True, "expressions": False, "target": False}

arg_types = {'this': True, 'expressions': False, 'target': False}
key = 'indextablehint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class HistoricalData(Expression): View Source

    3126class HistoricalData(Expression):
    3127    arg_types = {"this": True, "kind": True, "expression": True}

arg_types = {'this': True, 'kind': True, 'expression': True}
key = 'historicaldata'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Table(Expression): View Source

    3130class Table(Expression):
    3131    arg_types = {
    3132        "this": False,
    3133        "alias": False,
    3134        "db": False,
    3135        "catalog": False,
    3136        "laterals": False,
    3137        "joins": False,
    3138        "pivots": False,
    3139        "hints": False,
    3140        "system_time": False,
    3141        "version": False,
    3142        "format": False,
    3143        "pattern": False,
    3144        "ordinality": False,
    3145        "when": False,
    3146        "only": False,
    3147        "partition": False,
    3148        "changes": False,
    3149        "rows_from": False,
    3150        "sample": False,
    3151    }
    3152
    3153    @property
    3154    def name(self) -> str:
    3155        if isinstance(self.this, Func):
    3156            return ""
    3157        return self.this.name
    3158
    3159    @property
    3160    def db(self) -> str:
    3161        return self.text("db")
    3162
    3163    @property
    3164    def catalog(self) -> str:
    3165        return self.text("catalog")
    3166
    3167    @property
    3168    def selects(self) -> t.List[Expression]:
    3169        return []
    3170
    3171    @property
    3172    def named_selects(self) -> t.List[str]:
    3173        return []
    3174
    3175    @property
    3176    def parts(self) -> t.List[Expression]:
    3177        """Return the parts of a table in order catalog, db, table."""
    3178        parts: t.List[Expression] = []
    3179
    3180        for arg in ("catalog", "db", "this"):
    3181            part = self.args.get(arg)
    3182
    3183            if isinstance(part, Dot):
    3184                parts.extend(part.flatten())
    3185            elif isinstance(part, Expression):
    3186                parts.append(part)
    3187
    3188        return parts
    3189
    3190    def to_column(self, copy: bool = True) -> Alias | Column | Dot:
    3191        parts = self.parts
    3192        col = column(*reversed(parts[0:4]), fields=parts[4:], copy=copy)  # type: ignore
    3193        alias = self.args.get("alias")
    3194        if alias:
    3195            col = alias_(col, alias.this, copy=copy)
    3196        return col

arg_types = {'this': False, 'alias': False, 'db': False, 'catalog': False, 'laterals': False, 'joins': False, 'pivots': False, 'hints': False, 'system_time': False, 'version': False, 'format': False, 'pattern': False, 'ordinality': False, 'when': False, 'only': False, 'partition': False, 'changes': False, 'rows_from': False, 'sample': False}
name: str View Source

    3153    @property
    3154    def name(self) -> str:
    3155        if isinstance(self.this, Func):
    3156            return ""
    3157        return self.this.name

db: str View Source

    3159    @property
    3160    def db(self) -> str:
    3161        return self.text("db")

catalog: str View Source

    3163    @property
    3164    def catalog(self) -> str:
    3165        return self.text("catalog")

selects: List[Expression] View Source

    3167    @property
    3168    def selects(self) -> t.List[Expression]:
    3169        return []

named_selects: List[str] View Source

    3171    @property
    3172    def named_selects(self) -> t.List[str]:
    3173        return []

parts: List[Expression] View Source

    3175    @property
    3176    def parts(self) -> t.List[Expression]:
    3177        """Return the parts of a table in order catalog, db, table."""
    3178        parts: t.List[Expression] = []
    3179
    3180        for arg in ("catalog", "db", "this"):
    3181            part = self.args.get(arg)
    3182
    3183            if isinstance(part, Dot):
    3184                parts.extend(part.flatten())
    3185            elif isinstance(part, Expression):
    3186                parts.append(part)
    3187
    3188        return parts

Return the parts of a table in order catalog, db, table.

def to_column( self, copy: bool = True) -> Alias | Column | Dot: View Source

    3190    def to_column(self, copy: bool = True) -> Alias | Column | Dot:
    3191        parts = self.parts
    3192        col = column(*reversed(parts[0:4]), fields=parts[4:], copy=copy)  # type: ignore
    3193        alias = self.args.get("alias")
    3194        if alias:
    3195            col = alias_(col, alias.this, copy=copy)
    3196        return col

key = 'table'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class SetOperation(Query): View Source

    3199class SetOperation(Query):
    3200    arg_types = {
    3201        "with": False,
    3202        "this": True,
    3203        "expression": True,
    3204        "distinct": False,
    3205        "by_name": False,
    3206        **QUERY_MODIFIERS,
    3207    }
    3208
    3209    def select(
    3210        self: S,
    3211        *expressions: t.Optional[ExpOrStr],
    3212        append: bool = True,
    3213        dialect: DialectType = None,
    3214        copy: bool = True,
    3215        **opts,
    3216    ) -> S:
    3217        this = maybe_copy(self, copy)
    3218        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3219        this.expression.unnest().select(
    3220            *expressions, append=append, dialect=dialect, copy=False, **opts
    3221        )
    3222        return this
    3223
    3224    @property
    3225    def named_selects(self) -> t.List[str]:
    3226        return self.this.unnest().named_selects
    3227
    3228    @property
    3229    def is_star(self) -> bool:
    3230        return self.this.is_star or self.expression.is_star
    3231
    3232    @property
    3233    def selects(self) -> t.List[Expression]:
    3234        return self.this.unnest().selects
    3235
    3236    @property
    3237    def left(self) -> Query:
    3238        return self.this
    3239
    3240    @property
    3241    def right(self) -> Query:
    3242        return self.expression

arg_types = {'with': False, 'this': True, 'expression': True, 'distinct': False, 'by_name': False, 'match': False, 'laterals': False, 'joins': False, 'connect': False, 'pivots': False, 'prewhere': False, 'where': False, 'group': False, 'having': False, 'qualify': False, 'windows': False, 'distribute': False, 'sort': False, 'cluster': False, 'order': False, 'limit': False, 'offset': False, 'locks': False, 'sample': False, 'settings': False, 'format': False, 'options': False}
def select( self: ~S, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> ~S: View Source

    3209    def select(
    3210        self: S,
    3211        *expressions: t.Optional[ExpOrStr],
    3212        append: bool = True,
    3213        dialect: DialectType = None,
    3214        copy: bool = True,
    3215        **opts,
    3216    ) -> S:
    3217        this = maybe_copy(self, copy)
    3218        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3219        this.expression.unnest().select(
    3220            *expressions, append=append, dialect=dialect, copy=False, **opts
    3221        )
    3222        return this

Append to or set the SELECT expressions.

###### Example:

>     >>> Select()select("x", "y").sql()
>     'SELECT x, y'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Query expression.

named_selects: List[str] View Source

    3224    @property
    3225    def named_selects(self) -> t.List[str]:
    3226        return self.this.unnest().named_selects

Returns the output names of the query's projections.

is_star: bool View Source

    3228    @property
    3229    def is_star(self) -> bool:
    3230        return self.this.is_star or self.expression.is_star

Checks whether an expression is a star.

selects: List[Expression] View Source

    3232    @property
    3233    def selects(self) -> t.List[Expression]:
    3234        return self.this.unnest().selects

Returns the query's projections.

left: Query View Source

    3236    @property
    3237    def left(self) -> Query:
    3238        return self.this

right: Query View Source

    3240    @property
    3241    def right(self) -> Query:
    3242        return self.expression

key = 'setoperation'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

class Union(SetOperation): View Source

    3245class Union(SetOperation):
    3246    pass

key = 'union'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
SetOperation
  arg_types
  select
  named_selects
  is_star
  selects
  left
  right
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

class Except(SetOperation): View Source

    3249class Except(SetOperation):
    3250    pass

key = 'except'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
SetOperation
  arg_types
  select
  named_selects
  is_star
  selects
  left
  right
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

class Intersect(SetOperation): View Source

    3253class Intersect(SetOperation):
    3254    pass

key = 'intersect'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
SetOperation
  arg_types
  select
  named_selects
  is_star
  selects
  left
  right
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

class Update(Expression): View Source

    3257class Update(Expression):
    3258    arg_types = {
    3259        "with": False,
    3260        "this": False,
    3261        "expressions": True,
    3262        "from": False,
    3263        "where": False,
    3264        "returning": False,
    3265        "order": False,
    3266        "limit": False,
    3267    }

arg_types = {'with': False, 'this': False, 'expressions': True, 'from': False, 'where': False, 'returning': False, 'order': False, 'limit': False}
key = 'update'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Values(UDTF): View Source

    3270class Values(UDTF):
    3271    arg_types = {"expressions": True, "alias": False}

arg_types = {'expressions': True, 'alias': False}
key = 'values'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
UDTF
  selects
DerivedTable
  named_selects

class Var(Expression): View Source

    3274class Var(Expression):
    3275    pass

key = 'var'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Version(Expression): View Source

    3278class Version(Expression):
    3279    """
    3280    Time travel, iceberg, bigquery etc
    3281    https://trino.io/docs/current/connector/iceberg.html?highlight=snapshot#using-snapshots
    3282    https://www.databricks.com/blog/2019/02/04/introducing-delta-time-travel-for-large-scale-data-lakes.html
    3283    https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#for_system_time_as_of
    3284    https://learn.microsoft.com/en-us/sql/relational-databases/tables/querying-data-in-a-system-versioned-temporal-table?view=sql-server-ver16
    3285    this is either TIMESTAMP or VERSION
    3286    kind is ("AS OF", "BETWEEN")
    3287    """
    3288
    3289    arg_types = {"this": True, "kind": True, "expression": False}

Time travel, iceberg, bigquery etc https://trino.io/docs/current/connector/iceberg.html?highlight=snapshot#using-snapshots https://www.databricks.com/blog/2019/02/04/introducing-delta-time-travel-for-large-scale-data-lakes.html https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#for_system_time_as_of https://learn.microsoft.com/en-us/sql/relational-databases/tables/querying-data-in-a-system-versioned-temporal-table?view=sql-server-ver16 this is either TIMESTAMP or VERSION kind is ("AS OF", "BETWEEN")

arg_types = {'this': True, 'kind': True, 'expression': False}
key = 'version'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Schema(Expression): View Source

    3292class Schema(Expression):
    3293    arg_types = {"this": False, "expressions": False}

arg_types = {'this': False, 'expressions': False}
key = 'schema'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Lock(Expression): View Source

    3298class Lock(Expression):
    3299    arg_types = {"update": True, "expressions": False, "wait": False}

arg_types = {'update': True, 'expressions': False, 'wait': False}
key = 'lock'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Select(Query): View Source

    3302class Select(Query):
    3303    arg_types = {
    3304        "with": False,
    3305        "kind": False,
    3306        "expressions": False,
    3307        "hint": False,
    3308        "distinct": False,
    3309        "into": False,
    3310        "from": False,
    3311        **QUERY_MODIFIERS,
    3312    }
    3313
    3314    def from_(
    3315        self, expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts
    3316    ) -> Select:
    3317        """
    3318        Set the FROM expression.
    3319
    3320        Example:
    3321            >>> Select().from_("tbl").select("x").sql()
    3322            'SELECT x FROM tbl'
    3323
    3324        Args:
    3325            expression : the SQL code strings to parse.
    3326                If a `From` instance is passed, this is used as-is.
    3327                If another `Expression` instance is passed, it will be wrapped in a `From`.
    3328            dialect: the dialect used to parse the input expression.
    3329            copy: if `False`, modify this expression instance in-place.
    3330            opts: other options to use to parse the input expressions.
    3331
    3332        Returns:
    3333            The modified Select expression.
    3334        """
    3335        return _apply_builder(
    3336            expression=expression,
    3337            instance=self,
    3338            arg="from",
    3339            into=From,
    3340            prefix="FROM",
    3341            dialect=dialect,
    3342            copy=copy,
    3343            **opts,
    3344        )
    3345
    3346    def group_by(
    3347        self,
    3348        *expressions: t.Optional[ExpOrStr],
    3349        append: bool = True,
    3350        dialect: DialectType = None,
    3351        copy: bool = True,
    3352        **opts,
    3353    ) -> Select:
    3354        """
    3355        Set the GROUP BY expression.
    3356
    3357        Example:
    3358            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    3359            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    3360
    3361        Args:
    3362            *expressions: the SQL code strings to parse.
    3363                If a `Group` instance is passed, this is used as-is.
    3364                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    3365                If nothing is passed in then a group by is not applied to the expression
    3366            append: if `True`, add to any existing expressions.
    3367                Otherwise, this flattens all the `Group` expression into a single expression.
    3368            dialect: the dialect used to parse the input expression.
    3369            copy: if `False`, modify this expression instance in-place.
    3370            opts: other options to use to parse the input expressions.
    3371
    3372        Returns:
    3373            The modified Select expression.
    3374        """
    3375        if not expressions:
    3376            return self if not copy else self.copy()
    3377
    3378        return _apply_child_list_builder(
    3379            *expressions,
    3380            instance=self,
    3381            arg="group",
    3382            append=append,
    3383            copy=copy,
    3384            prefix="GROUP BY",
    3385            into=Group,
    3386            dialect=dialect,
    3387            **opts,
    3388        )
    3389
    3390    def sort_by(
    3391        self,
    3392        *expressions: t.Optional[ExpOrStr],
    3393        append: bool = True,
    3394        dialect: DialectType = None,
    3395        copy: bool = True,
    3396        **opts,
    3397    ) -> Select:
    3398        """
    3399        Set the SORT BY expression.
    3400
    3401        Example:
    3402            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql(dialect="hive")
    3403            'SELECT x FROM tbl SORT BY x DESC'
    3404
    3405        Args:
    3406            *expressions: the SQL code strings to parse.
    3407                If a `Group` instance is passed, this is used as-is.
    3408                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    3409            append: if `True`, add to any existing expressions.
    3410                Otherwise, this flattens all the `Order` expression into a single expression.
    3411            dialect: the dialect used to parse the input expression.
    3412            copy: if `False`, modify this expression instance in-place.
    3413            opts: other options to use to parse the input expressions.
    3414
    3415        Returns:
    3416            The modified Select expression.
    3417        """
    3418        return _apply_child_list_builder(
    3419            *expressions,
    3420            instance=self,
    3421            arg="sort",
    3422            append=append,
    3423            copy=copy,
    3424            prefix="SORT BY",
    3425            into=Sort,
    3426            dialect=dialect,
    3427            **opts,
    3428        )
    3429
    3430    def cluster_by(
    3431        self,
    3432        *expressions: t.Optional[ExpOrStr],
    3433        append: bool = True,
    3434        dialect: DialectType = None,
    3435        copy: bool = True,
    3436        **opts,
    3437    ) -> Select:
    3438        """
    3439        Set the CLUSTER BY expression.
    3440
    3441        Example:
    3442            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql(dialect="hive")
    3443            'SELECT x FROM tbl CLUSTER BY x DESC'
    3444
    3445        Args:
    3446            *expressions: the SQL code strings to parse.
    3447                If a `Group` instance is passed, this is used as-is.
    3448                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    3449            append: if `True`, add to any existing expressions.
    3450                Otherwise, this flattens all the `Order` expression into a single expression.
    3451            dialect: the dialect used to parse the input expression.
    3452            copy: if `False`, modify this expression instance in-place.
    3453            opts: other options to use to parse the input expressions.
    3454
    3455        Returns:
    3456            The modified Select expression.
    3457        """
    3458        return _apply_child_list_builder(
    3459            *expressions,
    3460            instance=self,
    3461            arg="cluster",
    3462            append=append,
    3463            copy=copy,
    3464            prefix="CLUSTER BY",
    3465            into=Cluster,
    3466            dialect=dialect,
    3467            **opts,
    3468        )
    3469
    3470    def select(
    3471        self,
    3472        *expressions: t.Optional[ExpOrStr],
    3473        append: bool = True,
    3474        dialect: DialectType = None,
    3475        copy: bool = True,
    3476        **opts,
    3477    ) -> Select:
    3478        return _apply_list_builder(
    3479            *expressions,
    3480            instance=self,
    3481            arg="expressions",
    3482            append=append,
    3483            dialect=dialect,
    3484            into=Expression,
    3485            copy=copy,
    3486            **opts,
    3487        )
    3488
    3489    def lateral(
    3490        self,
    3491        *expressions: t.Optional[ExpOrStr],
    3492        append: bool = True,
    3493        dialect: DialectType = None,
    3494        copy: bool = True,
    3495        **opts,
    3496    ) -> Select:
    3497        """
    3498        Append to or set the LATERAL expressions.
    3499
    3500        Example:
    3501            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    3502            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    3503
    3504        Args:
    3505            *expressions: the SQL code strings to parse.
    3506                If an `Expression` instance is passed, it will be used as-is.
    3507            append: if `True`, add to any existing expressions.
    3508                Otherwise, this resets the expressions.
    3509            dialect: the dialect used to parse the input expressions.
    3510            copy: if `False`, modify this expression instance in-place.
    3511            opts: other options to use to parse the input expressions.
    3512
    3513        Returns:
    3514            The modified Select expression.
    3515        """
    3516        return _apply_list_builder(
    3517            *expressions,
    3518            instance=self,
    3519            arg="laterals",
    3520            append=append,
    3521            into=Lateral,
    3522            prefix="LATERAL VIEW",
    3523            dialect=dialect,
    3524            copy=copy,
    3525            **opts,
    3526        )
    3527
    3528    def join(
    3529        self,
    3530        expression: ExpOrStr,
    3531        on: t.Optional[ExpOrStr] = None,
    3532        using: t.Optional[ExpOrStr | t.Collection[ExpOrStr]] = None,
    3533        append: bool = True,
    3534        join_type: t.Optional[str] = None,
    3535        join_alias: t.Optional[Identifier | str] = None,
    3536        dialect: DialectType = None,
    3537        copy: bool = True,
    3538        **opts,
    3539    ) -> Select:
    3540        """
    3541        Append to or set the JOIN expressions.
    3542
    3543        Example:
    3544            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    3545            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    3546
    3547            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    3548            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    3549
    3550            Use `join_type` to change the type of join:
    3551
    3552            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    3553            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    3554
    3555        Args:
    3556            expression: the SQL code string to parse.
    3557                If an `Expression` instance is passed, it will be used as-is.
    3558            on: optionally specify the join "on" criteria as a SQL string.
    3559                If an `Expression` instance is passed, it will be used as-is.
    3560            using: optionally specify the join "using" criteria as a SQL string.
    3561                If an `Expression` instance is passed, it will be used as-is.
    3562            append: if `True`, add to any existing expressions.
    3563                Otherwise, this resets the expressions.
    3564            join_type: if set, alter the parsed join type.
    3565            join_alias: an optional alias for the joined source.
    3566            dialect: the dialect used to parse the input expressions.
    3567            copy: if `False`, modify this expression instance in-place.
    3568            opts: other options to use to parse the input expressions.
    3569
    3570        Returns:
    3571            Select: the modified expression.
    3572        """
    3573        parse_args: t.Dict[str, t.Any] = {"dialect": dialect, **opts}
    3574
    3575        try:
    3576            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    3577        except ParseError:
    3578            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    3579
    3580        join = expression if isinstance(expression, Join) else Join(this=expression)
    3581
    3582        if isinstance(join.this, Select):
    3583            join.this.replace(join.this.subquery())
    3584
    3585        if join_type:
    3586            method: t.Optional[Token]
    3587            side: t.Optional[Token]
    3588            kind: t.Optional[Token]
    3589
    3590            method, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    3591
    3592            if method:
    3593                join.set("method", method.text)
    3594            if side:
    3595                join.set("side", side.text)
    3596            if kind:
    3597                join.set("kind", kind.text)
    3598
    3599        if on:
    3600            on = and_(*ensure_list(on), dialect=dialect, copy=copy, **opts)
    3601            join.set("on", on)
    3602
    3603        if using:
    3604            join = _apply_list_builder(
    3605                *ensure_list(using),
    3606                instance=join,
    3607                arg="using",
    3608                append=append,
    3609                copy=copy,
    3610                into=Identifier,
    3611                **opts,
    3612            )
    3613
    3614        if join_alias:
    3615            join.set("this", alias_(join.this, join_alias, table=True))
    3616
    3617        return _apply_list_builder(
    3618            join,
    3619            instance=self,
    3620            arg="joins",
    3621            append=append,
    3622            copy=copy,
    3623            **opts,
    3624        )
    3625
    3626    def where(
    3627        self,
    3628        *expressions: t.Optional[ExpOrStr],
    3629        append: bool = True,
    3630        dialect: DialectType = None,
    3631        copy: bool = True,
    3632        **opts,
    3633    ) -> Select:
    3634        """
    3635        Append to or set the WHERE expressions.
    3636
    3637        Example:
    3638            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    3639            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    3640
    3641        Args:
    3642            *expressions: the SQL code strings to parse.
    3643                If an `Expression` instance is passed, it will be used as-is.
    3644                Multiple expressions are combined with an AND operator.
    3645            append: if `True`, AND the new expressions to any existing expression.
    3646                Otherwise, this resets the expression.
    3647            dialect: the dialect used to parse the input expressions.
    3648            copy: if `False`, modify this expression instance in-place.
    3649            opts: other options to use to parse the input expressions.
    3650
    3651        Returns:
    3652            Select: the modified expression.
    3653        """
    3654        return _apply_conjunction_builder(
    3655            *expressions,
    3656            instance=self,
    3657            arg="where",
    3658            append=append,
    3659            into=Where,
    3660            dialect=dialect,
    3661            copy=copy,
    3662            **opts,
    3663        )
    3664
    3665    def having(
    3666        self,
    3667        *expressions: t.Optional[ExpOrStr],
    3668        append: bool = True,
    3669        dialect: DialectType = None,
    3670        copy: bool = True,
    3671        **opts,
    3672    ) -> Select:
    3673        """
    3674        Append to or set the HAVING expressions.
    3675
    3676        Example:
    3677            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    3678            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    3679
    3680        Args:
    3681            *expressions: the SQL code strings to parse.
    3682                If an `Expression` instance is passed, it will be used as-is.
    3683                Multiple expressions are combined with an AND operator.
    3684            append: if `True`, AND the new expressions to any existing expression.
    3685                Otherwise, this resets the expression.
    3686            dialect: the dialect used to parse the input expressions.
    3687            copy: if `False`, modify this expression instance in-place.
    3688            opts: other options to use to parse the input expressions.
    3689
    3690        Returns:
    3691            The modified Select expression.
    3692        """
    3693        return _apply_conjunction_builder(
    3694            *expressions,
    3695            instance=self,
    3696            arg="having",
    3697            append=append,
    3698            into=Having,
    3699            dialect=dialect,
    3700            copy=copy,
    3701            **opts,
    3702        )
    3703
    3704    def window(
    3705        self,
    3706        *expressions: t.Optional[ExpOrStr],
    3707        append: bool = True,
    3708        dialect: DialectType = None,
    3709        copy: bool = True,
    3710        **opts,
    3711    ) -> Select:
    3712        return _apply_list_builder(
    3713            *expressions,
    3714            instance=self,
    3715            arg="windows",
    3716            append=append,
    3717            into=Window,
    3718            dialect=dialect,
    3719            copy=copy,
    3720            **opts,
    3721        )
    3722
    3723    def qualify(
    3724        self,
    3725        *expressions: t.Optional[ExpOrStr],
    3726        append: bool = True,
    3727        dialect: DialectType = None,
    3728        copy: bool = True,
    3729        **opts,
    3730    ) -> Select:
    3731        return _apply_conjunction_builder(
    3732            *expressions,
    3733            instance=self,
    3734            arg="qualify",
    3735            append=append,
    3736            into=Qualify,
    3737            dialect=dialect,
    3738            copy=copy,
    3739            **opts,
    3740        )
    3741
    3742    def distinct(
    3743        self, *ons: t.Optional[ExpOrStr], distinct: bool = True, copy: bool = True
    3744    ) -> Select:
    3745        """
    3746        Set the OFFSET expression.
    3747
    3748        Example:
    3749            >>> Select().from_("tbl").select("x").distinct().sql()
    3750            'SELECT DISTINCT x FROM tbl'
    3751
    3752        Args:
    3753            ons: the expressions to distinct on
    3754            distinct: whether the Select should be distinct
    3755            copy: if `False`, modify this expression instance in-place.
    3756
    3757        Returns:
    3758            Select: the modified expression.
    3759        """
    3760        instance = maybe_copy(self, copy)
    3761        on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons if on]) if ons else None
    3762        instance.set("distinct", Distinct(on=on) if distinct else None)
    3763        return instance
    3764
    3765    def ctas(
    3766        self,
    3767        table: ExpOrStr,
    3768        properties: t.Optional[t.Dict] = None,
    3769        dialect: DialectType = None,
    3770        copy: bool = True,
    3771        **opts,
    3772    ) -> Create:
    3773        """
    3774        Convert this expression to a CREATE TABLE AS statement.
    3775
    3776        Example:
    3777            >>> Select().select("*").from_("tbl").ctas("x").sql()
    3778            'CREATE TABLE x AS SELECT * FROM tbl'
    3779
    3780        Args:
    3781            table: the SQL code string to parse as the table name.
    3782                If another `Expression` instance is passed, it will be used as-is.
    3783            properties: an optional mapping of table properties
    3784            dialect: the dialect used to parse the input table.
    3785            copy: if `False`, modify this expression instance in-place.
    3786            opts: other options to use to parse the input table.
    3787
    3788        Returns:
    3789            The new Create expression.
    3790        """
    3791        instance = maybe_copy(self, copy)
    3792        table_expression = maybe_parse(table, into=Table, dialect=dialect, **opts)
    3793
    3794        properties_expression = None
    3795        if properties:
    3796            properties_expression = Properties.from_dict(properties)
    3797
    3798        return Create(
    3799            this=table_expression,
    3800            kind="TABLE",
    3801            expression=instance,
    3802            properties=properties_expression,
    3803        )
    3804
    3805    def lock(self, update: bool = True, copy: bool = True) -> Select:
    3806        """
    3807        Set the locking read mode for this expression.
    3808
    3809        Examples:
    3810            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    3811            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    3812
    3813            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    3814            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    3815
    3816        Args:
    3817            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    3818            copy: if `False`, modify this expression instance in-place.
    3819
    3820        Returns:
    3821            The modified expression.
    3822        """
    3823        inst = maybe_copy(self, copy)
    3824        inst.set("locks", [Lock(update=update)])
    3825
    3826        return inst
    3827
    3828    def hint(self, *hints: ExpOrStr, dialect: DialectType = None, copy: bool = True) -> Select:
    3829        """
    3830        Set hints for this expression.
    3831
    3832        Examples:
    3833            >>> Select().select("x").from_("tbl").hint("BROADCAST(y)").sql(dialect="spark")
    3834            'SELECT /*+ BROADCAST(y) */ x FROM tbl'
    3835
    3836        Args:
    3837            hints: The SQL code strings to parse as the hints.
    3838                If an `Expression` instance is passed, it will be used as-is.
    3839            dialect: The dialect used to parse the hints.
    3840            copy: If `False`, modify this expression instance in-place.
    3841
    3842        Returns:
    3843            The modified expression.
    3844        """
    3845        inst = maybe_copy(self, copy)
    3846        inst.set(
    3847            "hint", Hint(expressions=[maybe_parse(h, copy=copy, dialect=dialect) for h in hints])
    3848        )
    3849
    3850        return inst
    3851
    3852    @property
    3853    def named_selects(self) -> t.List[str]:
    3854        return [e.output_name for e in self.expressions if e.alias_or_name]
    3855
    3856    @property
    3857    def is_star(self) -> bool:
    3858        return any(expression.is_star for expression in self.expressions)
    3859
    3860    @property
    3861    def selects(self) -> t.List[Expression]:
    3862        return self.expressions

arg_types = {'with': False, 'kind': False, 'expressions': False, 'hint': False, 'distinct': False, 'into': False, 'from': False, 'match': False, 'laterals': False, 'joins': False, 'connect': False, 'pivots': False, 'prewhere': False, 'where': False, 'group': False, 'having': False, 'qualify': False, 'windows': False, 'distribute': False, 'sort': False, 'cluster': False, 'order': False, 'limit': False, 'offset': False, 'locks': False, 'sample': False, 'settings': False, 'format': False, 'options': False}
def from_( self, expression: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3314    def from_(
    3315        self, expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts
    3316    ) -> Select:
    3317        """
    3318        Set the FROM expression.
    3319
    3320        Example:
    3321            >>> Select().from_("tbl").select("x").sql()
    3322            'SELECT x FROM tbl'
    3323
    3324        Args:
    3325            expression : the SQL code strings to parse.
    3326                If a `From` instance is passed, this is used as-is.
    3327                If another `Expression` instance is passed, it will be wrapped in a `From`.
    3328            dialect: the dialect used to parse the input expression.
    3329            copy: if `False`, modify this expression instance in-place.
    3330            opts: other options to use to parse the input expressions.
    3331
    3332        Returns:
    3333            The modified Select expression.
    3334        """
    3335        return _apply_builder(
    3336            expression=expression,
    3337            instance=self,
    3338            arg="from",
    3339            into=From,
    3340            prefix="FROM",
    3341            dialect=dialect,
    3342            copy=copy,
    3343            **opts,
    3344        )

Set the FROM expression.

###### Example:

>     >>> Select()from_("tbl")select("x").sql()
>     'SELECT x FROM tbl'

###### Arguments:

- expression : the SQL code strings to parse. If a `From` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `From`.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def group_by( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3346    def group_by(
    3347        self,
    3348        *expressions: t.Optional[ExpOrStr],
    3349        append: bool = True,
    3350        dialect: DialectType = None,
    3351        copy: bool = True,
    3352        **opts,
    3353    ) -> Select:
    3354        """
    3355        Set the GROUP BY expression.
    3356
    3357        Example:
    3358            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    3359            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    3360
    3361        Args:
    3362            *expressions: the SQL code strings to parse.
    3363                If a `Group` instance is passed, this is used as-is.
    3364                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    3365                If nothing is passed in then a group by is not applied to the expression
    3366            append: if `True`, add to any existing expressions.
    3367                Otherwise, this flattens all the `Group` expression into a single expression.
    3368            dialect: the dialect used to parse the input expression.
    3369            copy: if `False`, modify this expression instance in-place.
    3370            opts: other options to use to parse the input expressions.
    3371
    3372        Returns:
    3373            The modified Select expression.
    3374        """
    3375        if not expressions:
    3376            return self if not copy else self.copy()
    3377
    3378        return _apply_child_list_builder(
    3379            *expressions,
    3380            instance=self,
    3381            arg="group",
    3382            append=append,
    3383            copy=copy,
    3384            prefix="GROUP BY",
    3385            into=Group,
    3386            dialect=dialect,
    3387            **opts,
    3388        )

Set the GROUP BY expression.

###### Example:

>     >>> Select()from_("tbl")select("x", "COUNT(1)").group_by("x").sql()
>     'SELECT x, COUNT(1) FROM tbl GROUP BY x'

###### Arguments:

- *expressions: the SQL code strings to parse. If a `Group` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `Group`. If nothing is passed in then a group by is not applied to the expression
- append: if `True`, add to any existing expressions. Otherwise, this flattens all the `Group` expression into a single expression.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def sort_by( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3390    def sort_by(
    3391        self,
    3392        *expressions: t.Optional[ExpOrStr],
    3393        append: bool = True,
    3394        dialect: DialectType = None,
    3395        copy: bool = True,
    3396        **opts,
    3397    ) -> Select:
    3398        """
    3399        Set the SORT BY expression.
    3400
    3401        Example:
    3402            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql(dialect="hive")
    3403            'SELECT x FROM tbl SORT BY x DESC'
    3404
    3405        Args:
    3406            *expressions: the SQL code strings to parse.
    3407                If a `Group` instance is passed, this is used as-is.
    3408                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    3409            append: if `True`, add to any existing expressions.
    3410                Otherwise, this flattens all the `Order` expression into a single expression.
    3411            dialect: the dialect used to parse the input expression.
    3412            copy: if `False`, modify this expression instance in-place.
    3413            opts: other options to use to parse the input expressions.
    3414
    3415        Returns:
    3416            The modified Select expression.
    3417        """
    3418        return _apply_child_list_builder(
    3419            *expressions,
    3420            instance=self,
    3421            arg="sort",
    3422            append=append,
    3423            copy=copy,
    3424            prefix="SORT BY",
    3425            into=Sort,
    3426            dialect=dialect,
    3427            **opts,
    3428        )

Set the SORT BY expression.

###### Example:

>     >>> Select()from_("tbl")select("x").sort_by("x DESC").sql(dialect="hive")
>     'SELECT x FROM tbl SORT BY x DESC'

###### Arguments:

- *expressions: the SQL code strings to parse. If a `Group` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `SORT`.
- append: if `True`, add to any existing expressions. Otherwise, this flattens all the `Order` expression into a single expression.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def cluster_by( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3430    def cluster_by(
    3431        self,
    3432        *expressions: t.Optional[ExpOrStr],
    3433        append: bool = True,
    3434        dialect: DialectType = None,
    3435        copy: bool = True,
    3436        **opts,
    3437    ) -> Select:
    3438        """
    3439        Set the CLUSTER BY expression.
    3440
    3441        Example:
    3442            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql(dialect="hive")
    3443            'SELECT x FROM tbl CLUSTER BY x DESC'
    3444
    3445        Args:
    3446            *expressions: the SQL code strings to parse.
    3447                If a `Group` instance is passed, this is used as-is.
    3448                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    3449            append: if `True`, add to any existing expressions.
    3450                Otherwise, this flattens all the `Order` expression into a single expression.
    3451            dialect: the dialect used to parse the input expression.
    3452            copy: if `False`, modify this expression instance in-place.
    3453            opts: other options to use to parse the input expressions.
    3454
    3455        Returns:
    3456            The modified Select expression.
    3457        """
    3458        return _apply_child_list_builder(
    3459            *expressions,
    3460            instance=self,
    3461            arg="cluster",
    3462            append=append,
    3463            copy=copy,
    3464            prefix="CLUSTER BY",
    3465            into=Cluster,
    3466            dialect=dialect,
    3467            **opts,
    3468        )

Set the CLUSTER BY expression.

###### Example:

>     >>> Select()from_("tbl")select("x").cluster_by("x DESC").sql(dialect="hive")
>     'SELECT x FROM tbl CLUSTER BY x DESC'

###### Arguments:

- *expressions: the SQL code strings to parse. If a `Group` instance is passed, this is used as-is. If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
- append: if `True`, add to any existing expressions. Otherwise, this flattens all the `Order` expression into a single expression.
- dialect: the dialect used to parse the input expression.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def select( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3470    def select(
    3471        self,
    3472        *expressions: t.Optional[ExpOrStr],
    3473        append: bool = True,
    3474        dialect: DialectType = None,
    3475        copy: bool = True,
    3476        **opts,
    3477    ) -> Select:
    3478        return _apply_list_builder(
    3479            *expressions,
    3480            instance=self,
    3481            arg="expressions",
    3482            append=append,
    3483            dialect=dialect,
    3484            into=Expression,
    3485            copy=copy,
    3486            **opts,
    3487        )

Append to or set the SELECT expressions.

###### Example:

>     >>> Select()select("x", "y").sql()
>     'SELECT x, y'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Query expression.

def lateral( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3489    def lateral(
    3490        self,
    3491        *expressions: t.Optional[ExpOrStr],
    3492        append: bool = True,
    3493        dialect: DialectType = None,
    3494        copy: bool = True,
    3495        **opts,
    3496    ) -> Select:
    3497        """
    3498        Append to or set the LATERAL expressions.
    3499
    3500        Example:
    3501            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    3502            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    3503
    3504        Args:
    3505            *expressions: the SQL code strings to parse.
    3506                If an `Expression` instance is passed, it will be used as-is.
    3507            append: if `True`, add to any existing expressions.
    3508                Otherwise, this resets the expressions.
    3509            dialect: the dialect used to parse the input expressions.
    3510            copy: if `False`, modify this expression instance in-place.
    3511            opts: other options to use to parse the input expressions.
    3512
    3513        Returns:
    3514            The modified Select expression.
    3515        """
    3516        return _apply_list_builder(
    3517            *expressions,
    3518            instance=self,
    3519            arg="laterals",
    3520            append=append,
    3521            into=Lateral,
    3522            prefix="LATERAL VIEW",
    3523            dialect=dialect,
    3524            copy=copy,
    3525            **opts,
    3526        )

Append to or set the LATERAL expressions.

###### Example:

>     >>> Select()select("x").lateral("OUTER explode(y) tbl2 AS z")from_("tbl").sql()
>     'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def join( self, expression: Union[str, Expression], on: Union[str, Expression, NoneType] = None, using: Union[str, Expression, Collection[Union[str, Expression]], NoneType] = None, append: bool = True, join_type: Optional[str] = None, join_alias: Union[Identifier, str, NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3528    def join(
    3529        self,
    3530        expression: ExpOrStr,
    3531        on: t.Optional[ExpOrStr] = None,
    3532        using: t.Optional[ExpOrStr | t.Collection[ExpOrStr]] = None,
    3533        append: bool = True,
    3534        join_type: t.Optional[str] = None,
    3535        join_alias: t.Optional[Identifier | str] = None,
    3536        dialect: DialectType = None,
    3537        copy: bool = True,
    3538        **opts,
    3539    ) -> Select:
    3540        """
    3541        Append to or set the JOIN expressions.
    3542
    3543        Example:
    3544            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    3545            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    3546
    3547            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    3548            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    3549
    3550            Use `join_type` to change the type of join:
    3551
    3552            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    3553            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    3554
    3555        Args:
    3556            expression: the SQL code string to parse.
    3557                If an `Expression` instance is passed, it will be used as-is.
    3558            on: optionally specify the join "on" criteria as a SQL string.
    3559                If an `Expression` instance is passed, it will be used as-is.
    3560            using: optionally specify the join "using" criteria as a SQL string.
    3561                If an `Expression` instance is passed, it will be used as-is.
    3562            append: if `True`, add to any existing expressions.
    3563                Otherwise, this resets the expressions.
    3564            join_type: if set, alter the parsed join type.
    3565            join_alias: an optional alias for the joined source.
    3566            dialect: the dialect used to parse the input expressions.
    3567            copy: if `False`, modify this expression instance in-place.
    3568            opts: other options to use to parse the input expressions.
    3569
    3570        Returns:
    3571            Select: the modified expression.
    3572        """
    3573        parse_args: t.Dict[str, t.Any] = {"dialect": dialect, **opts}
    3574
    3575        try:
    3576            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    3577        except ParseError:
    3578            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    3579
    3580        join = expression if isinstance(expression, Join) else Join(this=expression)
    3581
    3582        if isinstance(join.this, Select):
    3583            join.this.replace(join.this.subquery())
    3584
    3585        if join_type:
    3586            method: t.Optional[Token]
    3587            side: t.Optional[Token]
    3588            kind: t.Optional[Token]
    3589
    3590            method, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    3591
    3592            if method:
    3593                join.set("method", method.text)
    3594            if side:
    3595                join.set("side", side.text)
    3596            if kind:
    3597                join.set("kind", kind.text)
    3598
    3599        if on:
    3600            on = and_(*ensure_list(on), dialect=dialect, copy=copy, **opts)
    3601            join.set("on", on)
    3602
    3603        if using:
    3604            join = _apply_list_builder(
    3605                *ensure_list(using),
    3606                instance=join,
    3607                arg="using",
    3608                append=append,
    3609                copy=copy,
    3610                into=Identifier,
    3611                **opts,
    3612            )
    3613
    3614        if join_alias:
    3615            join.set("this", alias_(join.this, join_alias, table=True))
    3616
    3617        return _apply_list_builder(
    3618            join,
    3619            instance=self,
    3620            arg="joins",
    3621            append=append,
    3622            copy=copy,
    3623            **opts,
    3624        )

Append to or set the JOIN expressions.

###### Example:

>     >>> Select()select("*")from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
>     'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'

>     >>> Select()select("1")from_("a").join("b", using=["x", "y", "z"]).sql()
>     'SELECT 1 FROM a JOIN b USING (x, y, z)'

> Use `join_type` to change the type of join:

>     >>> Select()select("*")from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
>     'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'

###### Arguments:

- expression: the SQL code string to parse. If an `Expression` instance is passed, it will be used as-is.
- on: optionally specify the join "on" criteria as a SQL string. If an `Expression` instance is passed, it will be used as-is.
- using: optionally specify the join "using" criteria as a SQL string. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- join_type: if set, alter the parsed join type.
- join_alias: an optional alias for the joined source.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> Select: the modified expression.

def where( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3626    def where(
    3627        self,
    3628        *expressions: t.Optional[ExpOrStr],
    3629        append: bool = True,
    3630        dialect: DialectType = None,
    3631        copy: bool = True,
    3632        **opts,
    3633    ) -> Select:
    3634        """
    3635        Append to or set the WHERE expressions.
    3636
    3637        Example:
    3638            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    3639            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    3640
    3641        Args:
    3642            *expressions: the SQL code strings to parse.
    3643                If an `Expression` instance is passed, it will be used as-is.
    3644                Multiple expressions are combined with an AND operator.
    3645            append: if `True`, AND the new expressions to any existing expression.
    3646                Otherwise, this resets the expression.
    3647            dialect: the dialect used to parse the input expressions.
    3648            copy: if `False`, modify this expression instance in-place.
    3649            opts: other options to use to parse the input expressions.
    3650
    3651        Returns:
    3652            Select: the modified expression.
    3653        """
    3654        return _apply_conjunction_builder(
    3655            *expressions,
    3656            instance=self,
    3657            arg="where",
    3658            append=append,
    3659            into=Where,
    3660            dialect=dialect,
    3661            copy=copy,
    3662            **opts,
    3663        )

Append to or set the WHERE expressions.

###### Example:

>     >>> Select()select("x")from_("tbl").where("x = 'a' OR x < 'b'").sql()
>     "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. Multiple expressions are combined with an AND operator.
- append: if `True`, AND the new expressions to any existing expression. Otherwise, this resets the expression.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> Select: the modified expression.

def having( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3665    def having(
    3666        self,
    3667        *expressions: t.Optional[ExpOrStr],
    3668        append: bool = True,
    3669        dialect: DialectType = None,
    3670        copy: bool = True,
    3671        **opts,
    3672    ) -> Select:
    3673        """
    3674        Append to or set the HAVING expressions.
    3675
    3676        Example:
    3677            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    3678            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    3679
    3680        Args:
    3681            *expressions: the SQL code strings to parse.
    3682                If an `Expression` instance is passed, it will be used as-is.
    3683                Multiple expressions are combined with an AND operator.
    3684            append: if `True`, AND the new expressions to any existing expression.
    3685                Otherwise, this resets the expression.
    3686            dialect: the dialect used to parse the input expressions.
    3687            copy: if `False`, modify this expression instance in-place.
    3688            opts: other options to use to parse the input expressions.
    3689
    3690        Returns:
    3691            The modified Select expression.
    3692        """
    3693        return _apply_conjunction_builder(
    3694            *expressions,
    3695            instance=self,
    3696            arg="having",
    3697            append=append,
    3698            into=Having,
    3699            dialect=dialect,
    3700            copy=copy,
    3701            **opts,
    3702        )

Append to or set the HAVING expressions.

###### Example:

>     >>> Select()select("x", "COUNT(y)")from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
>     'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. Multiple expressions are combined with an AND operator.
- append: if `True`, AND the new expressions to any existing expression. Otherwise, this resets the expression.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Select expression.

def window( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3704    def window(
    3705        self,
    3706        *expressions: t.Optional[ExpOrStr],
    3707        append: bool = True,
    3708        dialect: DialectType = None,
    3709        copy: bool = True,
    3710        **opts,
    3711    ) -> Select:
    3712        return _apply_list_builder(
    3713            *expressions,
    3714            instance=self,
    3715            arg="windows",
    3716            append=append,
    3717            into=Window,
    3718            dialect=dialect,
    3719            copy=copy,
    3720            **opts,
    3721        )

def qualify( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Select: View Source

    3723    def qualify(
    3724        self,
    3725        *expressions: t.Optional[ExpOrStr],
    3726        append: bool = True,
    3727        dialect: DialectType = None,
    3728        copy: bool = True,
    3729        **opts,
    3730    ) -> Select:
    3731        return _apply_conjunction_builder(
    3732            *expressions,
    3733            instance=self,
    3734            arg="qualify",
    3735            append=append,
    3736            into=Qualify,
    3737            dialect=dialect,
    3738            copy=copy,
    3739            **opts,
    3740        )

def distinct( self, *ons: Union[str, Expression, NoneType], distinct: bool = True, copy: bool = True) -> Select: View Source

    3742    def distinct(
    3743        self, *ons: t.Optional[ExpOrStr], distinct: bool = True, copy: bool = True
    3744    ) -> Select:
    3745        """
    3746        Set the OFFSET expression.
    3747
    3748        Example:
    3749            >>> Select().from_("tbl").select("x").distinct().sql()
    3750            'SELECT DISTINCT x FROM tbl'
    3751
    3752        Args:
    3753            ons: the expressions to distinct on
    3754            distinct: whether the Select should be distinct
    3755            copy: if `False`, modify this expression instance in-place.
    3756
    3757        Returns:
    3758            Select: the modified expression.
    3759        """
    3760        instance = maybe_copy(self, copy)
    3761        on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons if on]) if ons else None
    3762        instance.set("distinct", Distinct(on=on) if distinct else None)
    3763        return instance

Set the OFFSET expression.

###### Example:

>     >>> Select()from_("tbl")select("x").distinct().sql()
>     'SELECT DISTINCT x FROM tbl'

###### Arguments:

- ons: the expressions to distinct on
- distinct: whether the Select should be distinct
- copy: if `False`, modify this expression instance in-place.

###### Returns:

> Select: the modified expression.

def ctas( self, table: Union[str, Expression], properties: Optional[Dict] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Create: View Source

    3765    def ctas(
    3766        self,
    3767        table: ExpOrStr,
    3768        properties: t.Optional[t.Dict] = None,
    3769        dialect: DialectType = None,
    3770        copy: bool = True,
    3771        **opts,
    3772    ) -> Create:
    3773        """
    3774        Convert this expression to a CREATE TABLE AS statement.
    3775
    3776        Example:
    3777            >>> Select().select("*").from_("tbl").ctas("x").sql()
    3778            'CREATE TABLE x AS SELECT * FROM tbl'
    3779
    3780        Args:
    3781            table: the SQL code string to parse as the table name.
    3782                If another `Expression` instance is passed, it will be used as-is.
    3783            properties: an optional mapping of table properties
    3784            dialect: the dialect used to parse the input table.
    3785            copy: if `False`, modify this expression instance in-place.
    3786            opts: other options to use to parse the input table.
    3787
    3788        Returns:
    3789            The new Create expression.
    3790        """
    3791        instance = maybe_copy(self, copy)
    3792        table_expression = maybe_parse(table, into=Table, dialect=dialect, **opts)
    3793
    3794        properties_expression = None
    3795        if properties:
    3796            properties_expression = Properties.from_dict(properties)
    3797
    3798        return Create(
    3799            this=table_expression,
    3800            kind="TABLE",
    3801            expression=instance,
    3802            properties=properties_expression,
    3803        )

Convert this expression to a CREATE TABLE AS statement.

###### Example:

>     >>> Select()select("*")from_("tbl").ctas("x").sql()
>     'CREATE TABLE x AS SELECT * FROM tbl'

###### Arguments:

- table: the SQL code string to parse as the table name. If another `Expression` instance is passed, it will be used as-is.
- properties: an optional mapping of table properties
- dialect: the dialect used to parse the input table.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input table.

###### Returns:

> The new Create expression.

def lock( self, update: bool = True, copy: bool = True) -> Select: View Source

    3805    def lock(self, update: bool = True, copy: bool = True) -> Select:
    3806        """
    3807        Set the locking read mode for this expression.
    3808
    3809        Examples:
    3810            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    3811            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    3812
    3813            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    3814            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    3815
    3816        Args:
    3817            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    3818            copy: if `False`, modify this expression instance in-place.
    3819
    3820        Returns:
    3821            The modified expression.
    3822        """
    3823        inst = maybe_copy(self, copy)
    3824        inst.set("locks", [Lock(update=update)])
    3825
    3826        return inst

Set the locking read mode for this expression.

###### Examples:

>     >>> Select()select("x")from_("tbl").where("x = 'a'").lock().sql("mysql")
>     "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"

>     >>> Select()select("x")from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
>     "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"

###### Arguments:

- update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
- copy: if `False`, modify this expression instance in-place.

###### Returns:

> The modified expression.

def hint( self, *hints: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True) -> Select: View Source

    3828    def hint(self, *hints: ExpOrStr, dialect: DialectType = None, copy: bool = True) -> Select:
    3829        """
    3830        Set hints for this expression.
    3831
    3832        Examples:
    3833            >>> Select().select("x").from_("tbl").hint("BROADCAST(y)").sql(dialect="spark")
    3834            'SELECT /*+ BROADCAST(y) */ x FROM tbl'
    3835
    3836        Args:
    3837            hints: The SQL code strings to parse as the hints.
    3838                If an `Expression` instance is passed, it will be used as-is.
    3839            dialect: The dialect used to parse the hints.
    3840            copy: If `False`, modify this expression instance in-place.
    3841
    3842        Returns:
    3843            The modified expression.
    3844        """
    3845        inst = maybe_copy(self, copy)
    3846        inst.set(
    3847            "hint", Hint(expressions=[maybe_parse(h, copy=copy, dialect=dialect) for h in hints])
    3848        )
    3849
    3850        return inst

Set hints for this expression.

###### Examples:

>     >>> Select()select("x")from_("tbl").hint("BROADCAST(y)").sql(dialect="spark")
>     'SELECT /*+ BROADCAST(y) */ x FROM tbl'

###### Arguments:

- hints: The SQL code strings to parse as the hints. If an `Expression` instance is passed, it will be used as-is.
- dialect: The dialect used to parse the hints.
- copy: If `False`, modify this expression instance in-place.

###### Returns:

> The modified expression.

named_selects: List[str] View Source

    3852    @property
    3853    def named_selects(self) -> t.List[str]:
    3854        return [e.output_name for e in self.expressions if e.alias_or_name]

Returns the output names of the query's projections.

is_star: bool View Source

    3856    @property
    3857    def is_star(self) -> bool:
    3858        return any(expression.is_star for expression in self.expressions)

Checks whether an expression is a star.

selects: List[Expression] View Source

    3860    @property
    3861    def selects(self) -> t.List[Expression]:
    3862        return self.expressions

Returns the query's projections.

key = 'select'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

UNWRAPPED_QUERIES = (<class 'Select'>, <class 'SetOperation'>)
class Subquery(DerivedTable, Query): View Source

    3868class Subquery(DerivedTable, Query):
    3869    arg_types = {
    3870        "this": True,
    3871        "alias": False,
    3872        "with": False,
    3873        **QUERY_MODIFIERS,
    3874    }
    3875
    3876    def unnest(self):
    3877        """Returns the first non subquery."""
    3878        expression = self
    3879        while isinstance(expression, Subquery):
    3880            expression = expression.this
    3881        return expression
    3882
    3883    def unwrap(self) -> Subquery:
    3884        expression = self
    3885        while expression.same_parent and expression.is_wrapper:
    3886            expression = t.cast(Subquery, expression.parent)
    3887        return expression
    3888
    3889    def select(
    3890        self,
    3891        *expressions: t.Optional[ExpOrStr],
    3892        append: bool = True,
    3893        dialect: DialectType = None,
    3894        copy: bool = True,
    3895        **opts,
    3896    ) -> Subquery:
    3897        this = maybe_copy(self, copy)
    3898        this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3899        return this
    3900
    3901    @property
    3902    def is_wrapper(self) -> bool:
    3903        """
    3904        Whether this Subquery acts as a simple wrapper around another expression.
    3905
    3906        SELECT * FROM (((SELECT * FROM t)))
    3907                      ^
    3908                      This corresponds to a "wrapper" Subquery node
    3909        """
    3910        return all(v is None for k, v in self.args.items() if k != "this")
    3911
    3912    @property
    3913    def is_star(self) -> bool:
    3914        return self.this.is_star
    3915
    3916    @property
    3917    def output_name(self) -> str:
    3918        return self.alias

arg_types = {'this': True, 'alias': False, 'with': False, 'match': False, 'laterals': False, 'joins': False, 'connect': False, 'pivots': False, 'prewhere': False, 'where': False, 'group': False, 'having': False, 'qualify': False, 'windows': False, 'distribute': False, 'sort': False, 'cluster': False, 'order': False, 'limit': False, 'offset': False, 'locks': False, 'sample': False, 'settings': False, 'format': False, 'options': False}
def unnest(self): View Source

    3876    def unnest(self):
    3877        """Returns the first non subquery."""
    3878        expression = self
    3879        while isinstance(expression, Subquery):
    3880            expression = expression.this
    3881        return expression

Returns the first non subquery.

def unwrap(self) -> Subquery: View Source

    3883    def unwrap(self) -> Subquery:
    3884        expression = self
    3885        while expression.same_parent and expression.is_wrapper:
    3886            expression = t.cast(Subquery, expression.parent)
    3887        return expression

def select( self, *expressions: Union[str, Expression, NoneType], append: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Subquery: View Source

    3889    def select(
    3890        self,
    3891        *expressions: t.Optional[ExpOrStr],
    3892        append: bool = True,
    3893        dialect: DialectType = None,
    3894        copy: bool = True,
    3895        **opts,
    3896    ) -> Subquery:
    3897        this = maybe_copy(self, copy)
    3898        this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    3899        return this

Append to or set the SELECT expressions.

###### Example:

>     >>> Select()select("x", "y").sql()
>     'SELECT x, y'

###### Arguments:

- *expressions: the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is.
- append: if `True`, add to any existing expressions. Otherwise, this resets the expressions.
- dialect: the dialect used to parse the input expressions.
- copy: if `False`, modify this expression instance in-place.
- opts: other options to use to parse the input expressions.

###### Returns:

> The modified Query expression.

is_wrapper: bool View Source

    3901    @property
    3902    def is_wrapper(self) -> bool:
    3903        """
    3904        Whether this Subquery acts as a simple wrapper around another expression.
    3905
    3906        SELECT * FROM (((SELECT * FROM t)))
    3907                      ^
    3908                      This corresponds to a "wrapper" Subquery node
    3909        """
    3910        return all(v is None for k, v in self.args.items() if k != "this")

Whether this Subquery acts as a simple wrapper around another expression.

SELECT * FROM (((SELECT * FROM t))) ^ This corresponds to a "wrapper" Subquery node

is_star: bool View Source

    3912    @property
    3913    def is_star(self) -> bool:
    3914        return self.this.is_star

Checks whether an expression is a star.

output_name: str View Source

    3916    @property
    3917    def output_name(self) -> str:
    3918        return self.alias

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'subquery'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
DerivedTable
  selects
  named_selects
Query
  subquery
  limit
  offset
  order_by
  ctes
  with_
  union
  intersect
  except_

class TableSample(Expression): View Source

    3921class TableSample(Expression):
    3922    arg_types = {
    3923        "expressions": False,
    3924        "method": False,
    3925        "bucket_numerator": False,
    3926        "bucket_denominator": False,
    3927        "bucket_field": False,
    3928        "percent": False,
    3929        "rows": False,
    3930        "size": False,
    3931        "seed": False,
    3932    }

arg_types = {'expressions': False, 'method': False, 'bucket_numerator': False, 'bucket_denominator': False, 'bucket_field': False, 'percent': False, 'rows': False, 'size': False, 'seed': False}
key = 'tablesample'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Tag(Expression): View Source

    3935class Tag(Expression):
    3936    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    3937
    3938    arg_types = {
    3939        "this": False,
    3940        "prefix": False,
    3941        "postfix": False,
    3942    }

Tags are used for generating arbitrary sql like SELECT x.

arg_types = {'this': False, 'prefix': False, 'postfix': False}
key = 'tag'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Pivot(Expression): View Source

    3947class Pivot(Expression):
    3948    arg_types = {
    3949        "this": False,
    3950        "alias": False,
    3951        "expressions": False,
    3952        "field": False,
    3953        "unpivot": False,
    3954        "using": False,
    3955        "group": False,
    3956        "columns": False,
    3957        "include_nulls": False,
    3958        "default_on_null": False,
    3959    }
    3960
    3961    @property
    3962    def unpivot(self) -> bool:
    3963        return bool(self.args.get("unpivot"))

arg_types = {'this': False, 'alias': False, 'expressions': False, 'field': False, 'unpivot': False, 'using': False, 'group': False, 'columns': False, 'include_nulls': False, 'default_on_null': False}
unpivot: bool View Source

    3961    @property
    3962    def unpivot(self) -> bool:
    3963        return bool(self.args.get("unpivot"))

key = 'pivot'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Window(Condition): View Source

    3966class Window(Condition):
    3967    arg_types = {
    3968        "this": True,
    3969        "partition_by": False,
    3970        "order": False,
    3971        "spec": False,
    3972        "alias": False,
    3973        "over": False,
    3974        "first": False,
    3975    }

arg_types = {'this': True, 'partition_by': False, 'order': False, 'spec': False, 'alias': False, 'over': False, 'first': False}
key = 'window'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class WindowSpec(Expression): View Source

    3978class WindowSpec(Expression):
    3979    arg_types = {
    3980        "kind": False,
    3981        "start": False,
    3982        "start_side": False,
    3983        "end": False,
    3984        "end_side": False,
    3985    }

arg_types = {'kind': False, 'start': False, 'start_side': False, 'end': False, 'end_side': False}
key = 'windowspec'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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  rlike
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  desc

class PreWhere(Expression): View Source

    3988class PreWhere(Expression):
    3989    pass

key = 'prewhere'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Where(Expression): View Source

    3992class Where(Expression):
    3993    pass

key = 'where'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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class Star(Expression): View Source

    3996class Star(Expression):
    3997    arg_types = {"except": False, "replace": False, "rename": False}
    3998
    3999    @property
    4000    def name(self) -> str:
    4001        return "*"
    4002
    4003    @property
    4004    def output_name(self) -> str:
    4005        return self.name

arg_types = {'except': False, 'replace': False, 'rename': False}
name: str View Source

    3999    @property
    4000    def name(self) -> str:
    4001        return "*"

output_name: str View Source

    4003    @property
    4004    def output_name(self) -> str:
    4005        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'star'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
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  rlike
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  desc

class Parameter(Condition): View Source

    4008class Parameter(Condition):
    4009    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'parameter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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  isin
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class SessionParameter(Condition): View Source

    4012class SessionParameter(Condition):
    4013    arg_types = {"this": True, "kind": False}

arg_types = {'this': True, 'kind': False}
key = 'sessionparameter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
  between
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  desc

class Placeholder(Condition): View Source

    4016class Placeholder(Condition):
    4017    arg_types = {"this": False, "kind": False}
    4018
    4019    @property
    4020    def name(self) -> str:
    4021        return self.this or "?"

arg_types = {'this': False, 'kind': False}
name: str View Source

    4019    @property
    4020    def name(self) -> str:
    4021        return self.this or "?"

key = 'placeholder'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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class Null(Condition): View Source

    4024class Null(Condition):
    4025    arg_types: t.Dict[str, t.Any] = {}
    4026
    4027    @property
    4028    def name(self) -> str:
    4029        return "NULL"
    4030
    4031    def to_py(self) -> Lit[None]:
    4032        return None

arg_types: Dict[str, Any] = {}
name: str View Source

    4027    @property
    4028    def name(self) -> str:
    4029        return "NULL"

def to_py(self) -> Literal[None]: View Source

    4031    def to_py(self) -> Lit[None]:
    4032        return None

Returns a Python object equivalent of the SQL node.

key = 'null'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  neq
  rlike
  div
  asc
  desc

class Boolean(Condition): View Source

    4035class Boolean(Condition):
    4036    def to_py(self) -> bool:
    4037        return self.this

def to_py(self) -> bool: View Source

    4036    def to_py(self) -> bool:
    4037        return self.this

Returns a Python object equivalent of the SQL node.

key = 'boolean'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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  rlike
  div
  asc
  desc

class DataTypeParam(Expression): View Source

    4040class DataTypeParam(Expression):
    4041    arg_types = {"this": True, "expression": False}
    4042
    4043    @property
    4044    def name(self) -> str:
    4045        return self.this.name

arg_types = {'this': True, 'expression': False}
name: str View Source

    4043    @property
    4044    def name(self) -> str:
    4045        return self.this.name

key = 'datatypeparam'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  as_
  isin
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  desc

class DataType(Expression): View Source

    4050class DataType(Expression):
    4051    arg_types = {
    4052        "this": True,
    4053        "expressions": False,
    4054        "nested": False,
    4055        "values": False,
    4056        "prefix": False,
    4057        "kind": False,
    4058        "nullable": False,
    4059    }
    4060
    4061    class Type(AutoName):
    4062        ARRAY = auto()
    4063        AGGREGATEFUNCTION = auto()
    4064        SIMPLEAGGREGATEFUNCTION = auto()
    4065        BIGDECIMAL = auto()
    4066        BIGINT = auto()
    4067        BIGSERIAL = auto()
    4068        BINARY = auto()
    4069        BIT = auto()
    4070        BOOLEAN = auto()
    4071        BPCHAR = auto()
    4072        CHAR = auto()
    4073        DATE = auto()
    4074        DATE32 = auto()
    4075        DATEMULTIRANGE = auto()
    4076        DATERANGE = auto()
    4077        DATETIME = auto()
    4078        DATETIME64 = auto()
    4079        DECIMAL = auto()
    4080        DECIMAL32 = auto()
    4081        DECIMAL64 = auto()
    4082        DECIMAL128 = auto()
    4083        DOUBLE = auto()
    4084        ENUM = auto()
    4085        ENUM8 = auto()
    4086        ENUM16 = auto()
    4087        FIXEDSTRING = auto()
    4088        FLOAT = auto()
    4089        GEOGRAPHY = auto()
    4090        GEOMETRY = auto()
    4091        HLLSKETCH = auto()
    4092        HSTORE = auto()
    4093        IMAGE = auto()
    4094        INET = auto()
    4095        INT = auto()
    4096        INT128 = auto()
    4097        INT256 = auto()
    4098        INT4MULTIRANGE = auto()
    4099        INT4RANGE = auto()
    4100        INT8MULTIRANGE = auto()
    4101        INT8RANGE = auto()
    4102        INTERVAL = auto()
    4103        IPADDRESS = auto()
    4104        IPPREFIX = auto()
    4105        IPV4 = auto()
    4106        IPV6 = auto()
    4107        JSON = auto()
    4108        JSONB = auto()
    4109        LIST = auto()
    4110        LONGBLOB = auto()
    4111        LONGTEXT = auto()
    4112        LOWCARDINALITY = auto()
    4113        MAP = auto()
    4114        MEDIUMBLOB = auto()
    4115        MEDIUMINT = auto()
    4116        MEDIUMTEXT = auto()
    4117        MONEY = auto()
    4118        NAME = auto()
    4119        NCHAR = auto()
    4120        NESTED = auto()
    4121        NULL = auto()
    4122        NULLABLE = auto()
    4123        NUMMULTIRANGE = auto()
    4124        NUMRANGE = auto()
    4125        NVARCHAR = auto()
    4126        OBJECT = auto()
    4127        ROWVERSION = auto()
    4128        SERIAL = auto()
    4129        SET = auto()
    4130        SMALLINT = auto()
    4131        SMALLMONEY = auto()
    4132        SMALLSERIAL = auto()
    4133        STRUCT = auto()
    4134        SUPER = auto()
    4135        TEXT = auto()
    4136        TINYBLOB = auto()
    4137        TINYTEXT = auto()
    4138        TIME = auto()
    4139        TIMETZ = auto()
    4140        TIMESTAMP = auto()
    4141        TIMESTAMPNTZ = auto()
    4142        TIMESTAMPLTZ = auto()
    4143        TIMESTAMPTZ = auto()
    4144        TIMESTAMP_S = auto()
    4145        TIMESTAMP_MS = auto()
    4146        TIMESTAMP_NS = auto()
    4147        TINYINT = auto()
    4148        TSMULTIRANGE = auto()
    4149        TSRANGE = auto()
    4150        TSTZMULTIRANGE = auto()
    4151        TSTZRANGE = auto()
    4152        UBIGINT = auto()
    4153        UINT = auto()
    4154        UINT128 = auto()
    4155        UINT256 = auto()
    4156        UMEDIUMINT = auto()
    4157        UDECIMAL = auto()
    4158        UNIQUEIDENTIFIER = auto()
    4159        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    4160        USERDEFINED = "USER-DEFINED"
    4161        USMALLINT = auto()
    4162        UTINYINT = auto()
    4163        UUID = auto()
    4164        VARBINARY = auto()
    4165        VARCHAR = auto()
    4166        VARIANT = auto()
    4167        VECTOR = auto()
    4168        XML = auto()
    4169        YEAR = auto()
    4170        TDIGEST = auto()
    4171
    4172    STRUCT_TYPES = {
    4173        Type.NESTED,
    4174        Type.OBJECT,
    4175        Type.STRUCT,
    4176    }
    4177
    4178    NESTED_TYPES = {
    4179        *STRUCT_TYPES,
    4180        Type.ARRAY,
    4181        Type.MAP,
    4182    }
    4183
    4184    TEXT_TYPES = {
    4185        Type.CHAR,
    4186        Type.NCHAR,
    4187        Type.NVARCHAR,
    4188        Type.TEXT,
    4189        Type.VARCHAR,
    4190        Type.NAME,
    4191    }
    4192
    4193    SIGNED_INTEGER_TYPES = {
    4194        Type.BIGINT,
    4195        Type.INT,
    4196        Type.INT128,
    4197        Type.INT256,
    4198        Type.MEDIUMINT,
    4199        Type.SMALLINT,
    4200        Type.TINYINT,
    4201    }
    4202
    4203    UNSIGNED_INTEGER_TYPES = {
    4204        Type.UBIGINT,
    4205        Type.UINT,
    4206        Type.UINT128,
    4207        Type.UINT256,
    4208        Type.UMEDIUMINT,
    4209        Type.USMALLINT,
    4210        Type.UTINYINT,
    4211    }
    4212
    4213    INTEGER_TYPES = {
    4214        *SIGNED_INTEGER_TYPES,
    4215        *UNSIGNED_INTEGER_TYPES,
    4216        Type.BIT,
    4217    }
    4218
    4219    FLOAT_TYPES = {
    4220        Type.DOUBLE,
    4221        Type.FLOAT,
    4222    }
    4223
    4224    REAL_TYPES = {
    4225        *FLOAT_TYPES,
    4226        Type.BIGDECIMAL,
    4227        Type.DECIMAL,
    4228        Type.DECIMAL32,
    4229        Type.DECIMAL64,
    4230        Type.DECIMAL128,
    4231        Type.MONEY,
    4232        Type.SMALLMONEY,
    4233        Type.UDECIMAL,
    4234    }
    4235
    4236    NUMERIC_TYPES = {
    4237        *INTEGER_TYPES,
    4238        *REAL_TYPES,
    4239    }
    4240
    4241    TEMPORAL_TYPES = {
    4242        Type.DATE,
    4243        Type.DATE32,
    4244        Type.DATETIME,
    4245        Type.DATETIME64,
    4246        Type.TIME,
    4247        Type.TIMESTAMP,
    4248        Type.TIMESTAMPNTZ,
    4249        Type.TIMESTAMPLTZ,
    4250        Type.TIMESTAMPTZ,
    4251        Type.TIMESTAMP_MS,
    4252        Type.TIMESTAMP_NS,
    4253        Type.TIMESTAMP_S,
    4254        Type.TIMETZ,
    4255    }
    4256
    4257    @classmethod
    4258    def build(
    4259        cls,
    4260        dtype: DATA_TYPE,
    4261        dialect: DialectType = None,
    4262        udt: bool = False,
    4263        copy: bool = True,
    4264        **kwargs,
    4265    ) -> DataType:
    4266        """
    4267        Constructs a DataType object.
    4268
    4269        Args:
    4270            dtype: the data type of interest.
    4271            dialect: the dialect to use for parsing `dtype`, in case it's a string.
    4272            udt: when set to True, `dtype` will be used as-is if it can't be parsed into a
    4273                DataType, thus creating a user-defined type.
    4274            copy: whether to copy the data type.
    4275            kwargs: additional arguments to pass in the constructor of DataType.
    4276
    4277        Returns:
    4278            The constructed DataType object.
    4279        """
    4280        from sqlglot import parse_one
    4281
    4282        if isinstance(dtype, str):
    4283            if dtype.upper() == "UNKNOWN":
    4284                return DataType(this=DataType.Type.UNKNOWN, **kwargs)
    4285
    4286            try:
    4287                data_type_exp = parse_one(
    4288                    dtype, read=dialect, into=DataType, error_level=ErrorLevel.IGNORE
    4289                )
    4290            except ParseError:
    4291                if udt:
    4292                    return DataType(this=DataType.Type.USERDEFINED, kind=dtype, **kwargs)
    4293                raise
    4294        elif isinstance(dtype, DataType.Type):
    4295            data_type_exp = DataType(this=dtype)
    4296        elif isinstance(dtype, DataType):
    4297            return maybe_copy(dtype, copy)
    4298        else:
    4299            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    4300
    4301        return DataType(**{**data_type_exp.args, **kwargs})
    4302
    4303    def is_type(self, *dtypes: DATA_TYPE, check_nullable: bool = False) -> bool:
    4304        """
    4305        Checks whether this DataType matches one of the provided data types. Nested types or precision
    4306        will be compared using "structural equivalence" semantics, so e.g. array<int> != array<float>.
    4307
    4308        Args:
    4309            dtypes: the data types to compare this DataType to.
    4310            check_nullable: whether to take the NULLABLE type constructor into account for the comparison.
    4311                If false, it means that NULLABLE<INT> is equivalent to INT.
    4312
    4313        Returns:
    4314            True, if and only if there is a type in `dtypes` which is equal to this DataType.
    4315        """
    4316        if (
    4317            not check_nullable
    4318            and self.this == DataType.Type.NULLABLE
    4319            and len(self.expressions) == 1
    4320        ):
    4321            this_type = self.expressions[0]
    4322        else:
    4323            this_type = self
    4324
    4325        for dtype in dtypes:
    4326            other_type = DataType.build(dtype, copy=False, udt=True)
    4327            if (
    4328                not check_nullable
    4329                and other_type.this == DataType.Type.NULLABLE
    4330                and len(other_type.expressions) == 1
    4331            ):
    4332                other_type = other_type.expressions[0]
    4333
    4334            if (
    4335                other_type.expressions
    4336                or this_type.this == DataType.Type.USERDEFINED
    4337                or other_type.this == DataType.Type.USERDEFINED
    4338            ):
    4339                matches = this_type == other_type
    4340            else:
    4341                matches = this_type.this == other_type.this
    4342
    4343            if matches:
    4344                return True
    4345        return False

arg_types = {'this': True, 'expressions': False, 'nested': False, 'values': False, 'prefix': False, 'kind': False, 'nullable': False}
STRUCT_TYPES = {<Type.STRUCT: 'STRUCT'>, <Type.OBJECT: 'OBJECT'>, <Type.NESTED: 'NESTED'>}
NESTED_TYPES = {<Type.ARRAY: 'ARRAY'>, <Type.OBJECT: 'OBJECT'>, <Type.MAP: 'MAP'>, <Type.STRUCT: 'STRUCT'>, <Type.NESTED: 'NESTED'>}
TEXT_TYPES = {<Type.NVARCHAR: 'NVARCHAR'>, <Type.TEXT: 'TEXT'>, <Type.NAME: 'NAME'>, <Type.VARCHAR: 'VARCHAR'>, <Type.CHAR: 'CHAR'>, <Type.NCHAR: 'NCHAR'>}
SIGNED_INTEGER_TYPES = {<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.SMALLINT: 'SMALLINT'>, <Type.INT256: 'INT256'>, <Type.INT: 'INT'>, <Type.INT128: 'INT128'>, <Type.TINYINT: 'TINYINT'>, <Type.BIGINT: 'BIGINT'>}
UNSIGNED_INTEGER_TYPES = {<Type.UINT: 'UINT'>, <Type.UINT256: 'UINT256'>, <Type.UBIGINT: 'UBIGINT'>, <Type.USMALLINT: 'USMALLINT'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.UTINYINT: 'UTINYINT'>, <Type.UINT128: 'UINT128'>}
INTEGER_TYPES = {<Type.MEDIUMINT: 'MEDIUMINT'>, <Type.SMALLINT: 'SMALLINT'>, <Type.UINT: 'UINT'>, <Type.UINT256: 'UINT256'>, <Type.UBIGINT: 'UBIGINT'>, <Type.USMALLINT: 'USMALLINT'>, <Type.INT256: 'INT256'>, <Type.BIT: 'BIT'>, <Type.INT: 'INT'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.INT128: 'INT128'>, <Type.UTINYINT: 'UTINYINT'>, <Type.TINYINT: 'TINYINT'>, <Type.BIGINT: 'BIGINT'>, <Type.UINT128: 'UINT128'>}
FLOAT_TYPES = {<Type.DOUBLE: 'DOUBLE'>, <Type.FLOAT: 'FLOAT'>}
REAL_TYPES = {<Type.DECIMAL64: 'DECIMAL64'>, <Type.DOUBLE: 'DOUBLE'>, <Type.FLOAT: 'FLOAT'>, <Type.DECIMAL128: 'DECIMAL128'>, <Type.UDECIMAL: 'UDECIMAL'>, <Type.SMALLMONEY: 'SMALLMONEY'>, <Type.MONEY: 'MONEY'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.DECIMAL: 'DECIMAL'>, <Type.DECIMAL32: 'DECIMAL32'>}
NUMERIC_TYPES = {<Type.DECIMAL64: 'DECIMAL64'>, <Type.DOUBLE: 'DOUBLE'>, <Type.SMALLINT: 'SMALLINT'>, <Type.UINT: 'UINT'>, <Type.FLOAT: 'FLOAT'>, <Type.USMALLINT: 'USMALLINT'>, <Type.BIT: 'BIT'>, <Type.INT256: 'INT256'>, <Type.DECIMAL128: 'DECIMAL128'>, <Type.MONEY: 'MONEY'>, <Type.BIGDECIMAL: 'BIGDECIMAL'>, <Type.UINT128: 'UINT128'>, <Type.DECIMAL: 'DECIMAL'>, <Type.MEDIUMINT: 'MEDIUMINT'>, <Type.UINT256: 'UINT256'>, <Type.UBIGINT: 'UBIGINT'>, <Type.UDECIMAL: 'UDECIMAL'>, <Type.SMALLMONEY: 'SMALLMONEY'>, <Type.INT: 'INT'>, <Type.UMEDIUMINT: 'UMEDIUMINT'>, <Type.INT128: 'INT128'>, <Type.UTINYINT: 'UTINYINT'>, <Type.TINYINT: 'TINYINT'>, <Type.BIGINT: 'BIGINT'>, <Type.DECIMAL32: 'DECIMAL32'>}
TEMPORAL_TYPES = {<Type.DATETIME64: 'DATETIME64'>, <Type.TIMESTAMP_S: 'TIMESTAMP_S'>, <Type.TIMESTAMP: 'TIMESTAMP'>, <Type.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <Type.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <Type.TIMETZ: 'TIMETZ'>, <Type.TIME: 'TIME'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.DATE: 'DATE'>, <Type.DATE32: 'DATE32'>, <Type.DATETIME: 'DATETIME'>}
@classmethod
def build( cls, dtype: Union[str, DataType, DataType.Type], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, udt: bool = False, copy: bool = True, **kwargs) -> DataType: View Source

    4257    @classmethod
    4258    def build(
    4259        cls,
    4260        dtype: DATA_TYPE,
    4261        dialect: DialectType = None,
    4262        udt: bool = False,
    4263        copy: bool = True,
    4264        **kwargs,
    4265    ) -> DataType:
    4266        """
    4267        Constructs a DataType object.
    4268
    4269        Args:
    4270            dtype: the data type of interest.
    4271            dialect: the dialect to use for parsing `dtype`, in case it's a string.
    4272            udt: when set to True, `dtype` will be used as-is if it can't be parsed into a
    4273                DataType, thus creating a user-defined type.
    4274            copy: whether to copy the data type.
    4275            kwargs: additional arguments to pass in the constructor of DataType.
    4276
    4277        Returns:
    4278            The constructed DataType object.
    4279        """
    4280        from sqlglot import parse_one
    4281
    4282        if isinstance(dtype, str):
    4283            if dtype.upper() == "UNKNOWN":
    4284                return DataType(this=DataType.Type.UNKNOWN, **kwargs)
    4285
    4286            try:
    4287                data_type_exp = parse_one(
    4288                    dtype, read=dialect, into=DataType, error_level=ErrorLevel.IGNORE
    4289                )
    4290            except ParseError:
    4291                if udt:
    4292                    return DataType(this=DataType.Type.USERDEFINED, kind=dtype, **kwargs)
    4293                raise
    4294        elif isinstance(dtype, DataType.Type):
    4295            data_type_exp = DataType(this=dtype)
    4296        elif isinstance(dtype, DataType):
    4297            return maybe_copy(dtype, copy)
    4298        else:
    4299            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    4300
    4301        return DataType(**{**data_type_exp.args, **kwargs})

Constructs a DataType object.

###### Arguments:

- dtype: the data type of interest.
- dialect: the dialect to use for parsing `dtype`, in case it's a string.
- udt: when set to True, `dtype` will be used as-is if it can't be parsed into a DataType, thus creating a user-defined type.
- copy: whether to copy the data type.
- kwargs: additional arguments to pass in the constructor of DataType.

###### Returns:

> The constructed DataType object.

def is_type( self, *dtypes: Union[str, DataType, DataType.Type], check_nullable: bool = False) -> bool: View Source

    4303    def is_type(self, *dtypes: DATA_TYPE, check_nullable: bool = False) -> bool:
    4304        """
    4305        Checks whether this DataType matches one of the provided data types. Nested types or precision
    4306        will be compared using "structural equivalence" semantics, so e.g. array<int> != array<float>.
    4307
    4308        Args:
    4309            dtypes: the data types to compare this DataType to.
    4310            check_nullable: whether to take the NULLABLE type constructor into account for the comparison.
    4311                If false, it means that NULLABLE<INT> is equivalent to INT.
    4312
    4313        Returns:
    4314            True, if and only if there is a type in `dtypes` which is equal to this DataType.
    4315        """
    4316        if (
    4317            not check_nullable
    4318            and self.this == DataType.Type.NULLABLE
    4319            and len(self.expressions) == 1
    4320        ):
    4321            this_type = self.expressions[0]
    4322        else:
    4323            this_type = self
    4324
    4325        for dtype in dtypes:
    4326            other_type = DataType.build(dtype, copy=False, udt=True)
    4327            if (
    4328                not check_nullable
    4329                and other_type.this == DataType.Type.NULLABLE
    4330                and len(other_type.expressions) == 1
    4331            ):
    4332                other_type = other_type.expressions[0]
    4333
    4334            if (
    4335                other_type.expressions
    4336                or this_type.this == DataType.Type.USERDEFINED
    4337                or other_type.this == DataType.Type.USERDEFINED
    4338            ):
    4339                matches = this_type == other_type
    4340            else:
    4341                matches = this_type.this == other_type.this
    4342
    4343            if matches:
    4344                return True
    4345        return False

Checks whether this DataType matches one of the provided data types. Nested types or precision will be compared using "structural equivalence" semantics, so e.g. array != array.

###### Arguments:

- dtypes: the data types to compare this DataType to.
- check_nullable: whether to take the NULLABLE type constructor into account for the comparison. If false, it means that NULLABLE is equivalent to INT.

###### Returns:

> True, if and only if there is a type in `dtypes` which is equal to this DataType.

key = 'datatype'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DataType.Type(sqlglot.helper.AutoName): View Source

    4061    class Type(AutoName):
    4062        ARRAY = auto()
    4063        AGGREGATEFUNCTION = auto()
    4064        SIMPLEAGGREGATEFUNCTION = auto()
    4065        BIGDECIMAL = auto()
    4066        BIGINT = auto()
    4067        BIGSERIAL = auto()
    4068        BINARY = auto()
    4069        BIT = auto()
    4070        BOOLEAN = auto()
    4071        BPCHAR = auto()
    4072        CHAR = auto()
    4073        DATE = auto()
    4074        DATE32 = auto()
    4075        DATEMULTIRANGE = auto()
    4076        DATERANGE = auto()
    4077        DATETIME = auto()
    4078        DATETIME64 = auto()
    4079        DECIMAL = auto()
    4080        DECIMAL32 = auto()
    4081        DECIMAL64 = auto()
    4082        DECIMAL128 = auto()
    4083        DOUBLE = auto()
    4084        ENUM = auto()
    4085        ENUM8 = auto()
    4086        ENUM16 = auto()
    4087        FIXEDSTRING = auto()
    4088        FLOAT = auto()
    4089        GEOGRAPHY = auto()
    4090        GEOMETRY = auto()
    4091        HLLSKETCH = auto()
    4092        HSTORE = auto()
    4093        IMAGE = auto()
    4094        INET = auto()
    4095        INT = auto()
    4096        INT128 = auto()
    4097        INT256 = auto()
    4098        INT4MULTIRANGE = auto()
    4099        INT4RANGE = auto()
    4100        INT8MULTIRANGE = auto()
    4101        INT8RANGE = auto()
    4102        INTERVAL = auto()
    4103        IPADDRESS = auto()
    4104        IPPREFIX = auto()
    4105        IPV4 = auto()
    4106        IPV6 = auto()
    4107        JSON = auto()
    4108        JSONB = auto()
    4109        LIST = auto()
    4110        LONGBLOB = auto()
    4111        LONGTEXT = auto()
    4112        LOWCARDINALITY = auto()
    4113        MAP = auto()
    4114        MEDIUMBLOB = auto()
    4115        MEDIUMINT = auto()
    4116        MEDIUMTEXT = auto()
    4117        MONEY = auto()
    4118        NAME = auto()
    4119        NCHAR = auto()
    4120        NESTED = auto()
    4121        NULL = auto()
    4122        NULLABLE = auto()
    4123        NUMMULTIRANGE = auto()
    4124        NUMRANGE = auto()
    4125        NVARCHAR = auto()
    4126        OBJECT = auto()
    4127        ROWVERSION = auto()
    4128        SERIAL = auto()
    4129        SET = auto()
    4130        SMALLINT = auto()
    4131        SMALLMONEY = auto()
    4132        SMALLSERIAL = auto()
    4133        STRUCT = auto()
    4134        SUPER = auto()
    4135        TEXT = auto()
    4136        TINYBLOB = auto()
    4137        TINYTEXT = auto()
    4138        TIME = auto()
    4139        TIMETZ = auto()
    4140        TIMESTAMP = auto()
    4141        TIMESTAMPNTZ = auto()
    4142        TIMESTAMPLTZ = auto()
    4143        TIMESTAMPTZ = auto()
    4144        TIMESTAMP_S = auto()
    4145        TIMESTAMP_MS = auto()
    4146        TIMESTAMP_NS = auto()
    4147        TINYINT = auto()
    4148        TSMULTIRANGE = auto()
    4149        TSRANGE = auto()
    4150        TSTZMULTIRANGE = auto()
    4151        TSTZRANGE = auto()
    4152        UBIGINT = auto()
    4153        UINT = auto()
    4154        UINT128 = auto()
    4155        UINT256 = auto()
    4156        UMEDIUMINT = auto()
    4157        UDECIMAL = auto()
    4158        UNIQUEIDENTIFIER = auto()
    4159        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    4160        USERDEFINED = "USER-DEFINED"
    4161        USMALLINT = auto()
    4162        UTINYINT = auto()
    4163        UUID = auto()
    4164        VARBINARY = auto()
    4165        VARCHAR = auto()
    4166        VARIANT = auto()
    4167        VECTOR = auto()
    4168        XML = auto()
    4169        YEAR = auto()
    4170        TDIGEST = auto()

An enumeration.

ARRAY = <Type.ARRAY: 'ARRAY'>
AGGREGATEFUNCTION = <Type.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>
SIMPLEAGGREGATEFUNCTION = <Type.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>
BIGDECIMAL = <Type.BIGDECIMAL: 'BIGDECIMAL'>
BIGINT = <Type.BIGINT: 'BIGINT'>
BIGSERIAL = <Type.BIGSERIAL: 'BIGSERIAL'>
BINARY = <Type.BINARY: 'BINARY'>
BIT = <Type.BIT: 'BIT'>
BOOLEAN = <Type.BOOLEAN: 'BOOLEAN'>
BPCHAR = <Type.BPCHAR: 'BPCHAR'>
CHAR = <Type.CHAR: 'CHAR'>
DATE = <Type.DATE: 'DATE'>
DATE32 = <Type.DATE32: 'DATE32'>
DATEMULTIRANGE = <Type.DATEMULTIRANGE: 'DATEMULTIRANGE'>
DATERANGE = <Type.DATERANGE: 'DATERANGE'>
DATETIME = <Type.DATETIME: 'DATETIME'>
DATETIME64 = <Type.DATETIME64: 'DATETIME64'>
DECIMAL = <Type.DECIMAL: 'DECIMAL'>
DECIMAL32 = <Type.DECIMAL32: 'DECIMAL32'>
DECIMAL64 = <Type.DECIMAL64: 'DECIMAL64'>
DECIMAL128 = <Type.DECIMAL128: 'DECIMAL128'>
DOUBLE = <Type.DOUBLE: 'DOUBLE'>
ENUM = <Type.ENUM: 'ENUM'>
ENUM8 = <Type.ENUM8: 'ENUM8'>
ENUM16 = <Type.ENUM16: 'ENUM16'>
FIXEDSTRING = <Type.FIXEDSTRING: 'FIXEDSTRING'>
FLOAT = <Type.FLOAT: 'FLOAT'>
GEOGRAPHY = <Type.GEOGRAPHY: 'GEOGRAPHY'>
GEOMETRY = <Type.GEOMETRY: 'GEOMETRY'>
HLLSKETCH = <Type.HLLSKETCH: 'HLLSKETCH'>
HSTORE = <Type.HSTORE: 'HSTORE'>
IMAGE = <Type.IMAGE: 'IMAGE'>
INET = <Type.INET: 'INET'>
INT = <Type.INT: 'INT'>
INT128 = <Type.INT128: 'INT128'>
INT256 = <Type.INT256: 'INT256'>
INT4MULTIRANGE = <Type.INT4MULTIRANGE: 'INT4MULTIRANGE'>
INT4RANGE = <Type.INT4RANGE: 'INT4RANGE'>
INT8MULTIRANGE = <Type.INT8MULTIRANGE: 'INT8MULTIRANGE'>
INT8RANGE = <Type.INT8RANGE: 'INT8RANGE'>
INTERVAL = <Type.INTERVAL: 'INTERVAL'>
IPADDRESS = <Type.IPADDRESS: 'IPADDRESS'>
IPPREFIX = <Type.IPPREFIX: 'IPPREFIX'>
IPV4 = <Type.IPV4: 'IPV4'>
IPV6 = <Type.IPV6: 'IPV6'>
JSON = <Type.JSON: 'JSON'>
JSONB = <Type.JSONB: 'JSONB'>
LIST = <Type.LIST: 'LIST'>
LONGBLOB = <Type.LONGBLOB: 'LONGBLOB'>
LONGTEXT = <Type.LONGTEXT: 'LONGTEXT'>
LOWCARDINALITY = <Type.LOWCARDINALITY: 'LOWCARDINALITY'>
MAP = <Type.MAP: 'MAP'>
MEDIUMBLOB = <Type.MEDIUMBLOB: 'MEDIUMBLOB'>
MEDIUMINT = <Type.MEDIUMINT: 'MEDIUMINT'>
MEDIUMTEXT = <Type.MEDIUMTEXT: 'MEDIUMTEXT'>
MONEY = <Type.MONEY: 'MONEY'>
NAME = <Type.NAME: 'NAME'>
NCHAR = <Type.NCHAR: 'NCHAR'>
NESTED = <Type.NESTED: 'NESTED'>
NULL = <Type.NULL: 'NULL'>
NULLABLE = <Type.NULLABLE: 'NULLABLE'>
NUMMULTIRANGE = <Type.NUMMULTIRANGE: 'NUMMULTIRANGE'>
NUMRANGE = <Type.NUMRANGE: 'NUMRANGE'>
NVARCHAR = <Type.NVARCHAR: 'NVARCHAR'>
OBJECT = <Type.OBJECT: 'OBJECT'>
ROWVERSION = <Type.ROWVERSION: 'ROWVERSION'>
SERIAL = <Type.SERIAL: 'SERIAL'>
SET = <Type.SET: 'SET'>
SMALLINT = <Type.SMALLINT: 'SMALLINT'>
SMALLMONEY = <Type.SMALLMONEY: 'SMALLMONEY'>
SMALLSERIAL = <Type.SMALLSERIAL: 'SMALLSERIAL'>
STRUCT = <Type.STRUCT: 'STRUCT'>
SUPER = <Type.SUPER: 'SUPER'>
TEXT = <Type.TEXT: 'TEXT'>
TINYBLOB = <Type.TINYBLOB: 'TINYBLOB'>
TINYTEXT = <Type.TINYTEXT: 'TINYTEXT'>
TIME = <Type.TIME: 'TIME'>
TIMETZ = <Type.TIMETZ: 'TIMETZ'>
TIMESTAMP = <Type.TIMESTAMP: 'TIMESTAMP'>
TIMESTAMPNTZ = <Type.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>
TIMESTAMPLTZ = <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>
TIMESTAMPTZ = <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>
TIMESTAMP_S = <Type.TIMESTAMP_S: 'TIMESTAMP_S'>
TIMESTAMP_MS = <Type.TIMESTAMP_MS: 'TIMESTAMP_MS'>
TIMESTAMP_NS = <Type.TIMESTAMP_NS: 'TIMESTAMP_NS'>
TINYINT = <Type.TINYINT: 'TINYINT'>
TSMULTIRANGE = <Type.TSMULTIRANGE: 'TSMULTIRANGE'>
TSRANGE = <Type.TSRANGE: 'TSRANGE'>
TSTZMULTIRANGE = <Type.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>
TSTZRANGE = <Type.TSTZRANGE: 'TSTZRANGE'>
UBIGINT = <Type.UBIGINT: 'UBIGINT'>
UINT = <Type.UINT: 'UINT'>
UINT128 = <Type.UINT128: 'UINT128'>
UINT256 = <Type.UINT256: 'UINT256'>
UMEDIUMINT = <Type.UMEDIUMINT: 'UMEDIUMINT'>
UDECIMAL = <Type.UDECIMAL: 'UDECIMAL'>
UNIQUEIDENTIFIER = <Type.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>
UNKNOWN = <Type.UNKNOWN: 'UNKNOWN'>
USERDEFINED = <Type.USERDEFINED: 'USER-DEFINED'>
USMALLINT = <Type.USMALLINT: 'USMALLINT'>
UTINYINT = <Type.UTINYINT: 'UTINYINT'>
UUID = <Type.UUID: 'UUID'>
VARBINARY = <Type.VARBINARY: 'VARBINARY'>
VARCHAR = <Type.VARCHAR: 'VARCHAR'>
VARIANT = <Type.VARIANT: 'VARIANT'>
VECTOR = <Type.VECTOR: 'VECTOR'>
XML = <Type.XML: 'XML'>
YEAR = <Type.YEAR: 'YEAR'>
TDIGEST = <Type.TDIGEST: 'TDIGEST'>

##### Inherited Members

enum.Enum
  name
  value

DATA_TYPE = typing.Union[str, DataType, DataType.Type]
class PseudoType(DataType): View Source

    4352class PseudoType(DataType):
    4353    arg_types = {"this": True}

arg_types = {'this': True}
key = 'pseudotype'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
DataType
  Type
  STRUCT_TYPES
  NESTED_TYPES
  TEXT_TYPES
  SIGNED_INTEGER_TYPES
  UNSIGNED_INTEGER_TYPES
  INTEGER_TYPES
  FLOAT_TYPES
  REAL_TYPES
  NUMERIC_TYPES
  TEMPORAL_TYPES
  build
  is_type

class ObjectIdentifier(DataType): View Source

    4357class ObjectIdentifier(DataType):
    4358    arg_types = {"this": True}

arg_types = {'this': True}
key = 'objectidentifier'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
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  desc
DataType
  Type
  STRUCT_TYPES
  NESTED_TYPES
  TEXT_TYPES
  SIGNED_INTEGER_TYPES
  UNSIGNED_INTEGER_TYPES
  INTEGER_TYPES
  FLOAT_TYPES
  REAL_TYPES
  NUMERIC_TYPES
  TEMPORAL_TYPES
  build
  is_type

class SubqueryPredicate(Predicate): View Source

    4362class SubqueryPredicate(Predicate):
    4363    pass

key = 'subquerypredicate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class All(SubqueryPredicate): View Source

    4366class All(SubqueryPredicate):
    4367    pass

key = 'all'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Any(SubqueryPredicate): View Source

    4370class Any(SubqueryPredicate):
    4371    pass

key = 'any'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Exists(SubqueryPredicate): View Source

    4374class Exists(SubqueryPredicate):
    4375    pass

key = 'exists'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Command(Expression): View Source

    4380class Command(Expression):
    4381    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'command'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Transaction(Expression): View Source

    4384class Transaction(Expression):
    4385    arg_types = {"this": False, "modes": False, "mark": False}

arg_types = {'this': False, 'modes': False, 'mark': False}
key = 'transaction'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Commit(Expression): View Source

    4388class Commit(Expression):
    4389    arg_types = {"chain": False, "this": False, "durability": False}

arg_types = {'chain': False, 'this': False, 'durability': False}
key = 'commit'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Rollback(Expression): View Source

    4392class Rollback(Expression):
    4393    arg_types = {"savepoint": False, "this": False}

arg_types = {'savepoint': False, 'this': False}
key = 'rollback'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Alter(Expression): View Source

    4396class Alter(Expression):
    4397    arg_types = {
    4398        "this": True,
    4399        "kind": True,
    4400        "actions": True,
    4401        "exists": False,
    4402        "only": False,
    4403        "options": False,
    4404        "cluster": False,
    4405        "not_valid": False,
    4406    }

arg_types = {'this': True, 'kind': True, 'actions': True, 'exists': False, 'only': False, 'options': False, 'cluster': False, 'not_valid': False}
key = 'alter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class AddConstraint(Expression): View Source

    4409class AddConstraint(Expression):
    4410    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'addconstraint'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DropPartition(Expression): View Source

    4413class DropPartition(Expression):
    4414    arg_types = {"expressions": True, "exists": False}

arg_types = {'expressions': True, 'exists': False}
key = 'droppartition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class ReplacePartition(Expression): View Source

    4418class ReplacePartition(Expression):
    4419    arg_types = {"expression": True, "source": True}

arg_types = {'expression': True, 'source': True}
key = 'replacepartition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Binary(Condition): View Source

    4423class Binary(Condition):
    4424    arg_types = {"this": True, "expression": True}
    4425
    4426    @property
    4427    def left(self) -> Expression:
    4428        return self.this
    4429
    4430    @property
    4431    def right(self) -> Expression:
    4432        return self.expression

arg_types = {'this': True, 'expression': True}
left: Expression View Source

    4426    @property
    4427    def left(self) -> Expression:
    4428        return self.this

right: Expression View Source

    4430    @property
    4431    def right(self) -> Expression:
    4432        return self.expression

key = 'binary'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Add(Binary): View Source

    4435class Add(Binary):
    4436    pass

key = 'add'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class Connector(Binary): View Source

    4439class Connector(Binary):
    4440    pass

key = 'connector'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class And(Connector): View Source

    4443class And(Connector):
    4444    pass

key = 'and'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class Or(Connector): View Source

    4447class Or(Connector):
    4448    pass

key = 'or'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class BitwiseAnd(Binary): View Source

    4451class BitwiseAnd(Binary):
    4452    pass

key = 'bitwiseand'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class BitwiseLeftShift(Binary): View Source

    4455class BitwiseLeftShift(Binary):
    4456    pass

key = 'bitwiseleftshift'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
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Binary
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class BitwiseOr(Binary): View Source

    4459class BitwiseOr(Binary):
    4460    pass

key = 'bitwiseor'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  isin
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Binary
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class BitwiseRightShift(Binary): View Source

    4463class BitwiseRightShift(Binary):
    4464    pass

key = 'bitwiserightshift'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  isin
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Binary
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class BitwiseXor(Binary): View Source

    4467class BitwiseXor(Binary):
    4468    pass

key = 'bitwisexor'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  isin
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Binary
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class Div(Binary): View Source

    4471class Div(Binary):
    4472    arg_types = {"this": True, "expression": True, "typed": False, "safe": False}

arg_types = {'this': True, 'expression': True, 'typed': False, 'safe': False}
key = 'div'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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Binary
  left
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class Overlaps(Binary): View Source

    4475class Overlaps(Binary):
    4476    pass

key = 'overlaps'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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Binary
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class Dot(Binary): View Source

    4479class Dot(Binary):
    4480    @property
    4481    def is_star(self) -> bool:
    4482        return self.expression.is_star
    4483
    4484    @property
    4485    def name(self) -> str:
    4486        return self.expression.name
    4487
    4488    @property
    4489    def output_name(self) -> str:
    4490        return self.name
    4491
    4492    @classmethod
    4493    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    4494        """Build a Dot object with a sequence of expressions."""
    4495        if len(expressions) < 2:
    4496            raise ValueError("Dot requires >= 2 expressions.")
    4497
    4498        return t.cast(Dot, reduce(lambda x, y: Dot(this=x, expression=y), expressions))
    4499
    4500    @property
    4501    def parts(self) -> t.List[Expression]:
    4502        """Return the parts of a table / column in order catalog, db, table."""
    4503        this, *parts = self.flatten()
    4504
    4505        parts.reverse()
    4506
    4507        for arg in COLUMN_PARTS:
    4508            part = this.args.get(arg)
    4509
    4510            if isinstance(part, Expression):
    4511                parts.append(part)
    4512
    4513        parts.reverse()
    4514        return parts

is_star: bool View Source

    4480    @property
    4481    def is_star(self) -> bool:
    4482        return self.expression.is_star

Checks whether an expression is a star.

name: str View Source

    4484    @property
    4485    def name(self) -> str:
    4486        return self.expression.name

output_name: str View Source

    4488    @property
    4489    def output_name(self) -> str:
    4490        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

@classmethod
def build( self, expressions: Sequence[Expression]) -> Dot: View Source

    4492    @classmethod
    4493    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    4494        """Build a Dot object with a sequence of expressions."""
    4495        if len(expressions) < 2:
    4496            raise ValueError("Dot requires >= 2 expressions.")
    4497
    4498        return t.cast(Dot, reduce(lambda x, y: Dot(this=x, expression=y), expressions))

Build a Dot object with a sequence of expressions.

parts: List[Expression] View Source

    4500    @property
    4501    def parts(self) -> t.List[Expression]:
    4502        """Return the parts of a table / column in order catalog, db, table."""
    4503        this, *parts = self.flatten()
    4504
    4505        parts.reverse()
    4506
    4507        for arg in COLUMN_PARTS:
    4508            part = this.args.get(arg)
    4509
    4510            if isinstance(part, Expression):
    4511                parts.append(part)
    4512
    4513        parts.reverse()
    4514        return parts

Return the parts of a table / column in order catalog, db, table.

key = 'dot'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  alias
  alias_column_names
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
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class DPipe(Binary): View Source

    4517class DPipe(Binary):
    4518    arg_types = {"this": True, "expression": True, "safe": False}

arg_types = {'this': True, 'expression': True, 'safe': False}
key = 'dpipe'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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Binary
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class EQ(Binary, Predicate): View Source

    4521class EQ(Binary, Predicate):
    4522    pass

key = 'eq'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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Binary
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class NullSafeEQ(Binary, Predicate): View Source

    4525class NullSafeEQ(Binary, Predicate):
    4526    pass

key = 'nullsafeeq'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class NullSafeNEQ(Binary, Predicate): View Source

    4529class NullSafeNEQ(Binary, Predicate):
    4530    pass

key = 'nullsafeneq'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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Binary
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class PropertyEQ(Binary): View Source

    4534class PropertyEQ(Binary):
    4535    pass

key = 'propertyeq'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  isin
  between
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Binary
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class Distance(Binary): View Source

    4538class Distance(Binary):
    4539    pass

key = 'distance'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
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Binary
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class Escape(Binary): View Source

    4542class Escape(Binary):
    4543    pass

key = 'escape'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class Glob(Binary, Predicate): View Source

    4546class Glob(Binary, Predicate):
    4547    pass

key = 'glob'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  isin
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Binary
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class GT(Binary, Predicate): View Source

    4550class GT(Binary, Predicate):
    4551    pass

key = 'gt'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class GTE(Binary, Predicate): View Source

    4554class GTE(Binary, Predicate):
    4555    pass

key = 'gte'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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class ILike(Binary, Predicate): View Source

    4558class ILike(Binary, Predicate):
    4559    pass

key = 'ilike'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
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Binary
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class ILikeAny(Binary, Predicate): View Source

    4562class ILikeAny(Binary, Predicate):
    4563    pass

key = 'ilikeany'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  sql
  transform
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  pop
  assert_is
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Binary
  arg_types
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class IntDiv(Binary): View Source

    4566class IntDiv(Binary):
    4567    pass

key = 'intdiv'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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Binary
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class Is(Binary, Predicate): View Source

    4570class Is(Binary, Predicate):
    4571    pass

key = 'is'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  isin
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Binary
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class Kwarg(Binary): View Source

    4574class Kwarg(Binary):
    4575    """Kwarg in special functions like func(kwarg => y)."""

Kwarg in special functions like func(kwarg => y).

key = 'kwarg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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Binary
  arg_types
  left
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class Like(Binary, Predicate): View Source

    4578class Like(Binary, Predicate):
    4579    pass

key = 'like'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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Binary
  arg_types
  left
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class LikeAny(Binary, Predicate): View Source

    4582class LikeAny(Binary, Predicate):
    4583    pass

key = 'likeany'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
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  rlike
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  desc
Binary
  arg_types
  left
  right

class LT(Binary, Predicate): View Source

    4586class LT(Binary, Predicate):
    4587    pass

key = 'lt'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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  desc
Binary
  arg_types
  left
  right

class LTE(Binary, Predicate): View Source

    4590class LTE(Binary, Predicate):
    4591    pass

key = 'lte'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
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  desc
Binary
  arg_types
  left
  right

class Mod(Binary): View Source

    4594class Mod(Binary):
    4595    pass

key = 'mod'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
  eq
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  desc
Binary
  arg_types
  left
  right

class Mul(Binary): View Source

    4598class Mul(Binary):
    4599    pass

key = 'mul'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
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Binary
  arg_types
  left
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class NEQ(Binary, Predicate): View Source

    4602class NEQ(Binary, Predicate):
    4603    pass

key = 'neq'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
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  as_
  isin
  between
  is_
  like
  ilike
  eq
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Binary
  arg_types
  left
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class Operator(Binary): View Source

    4607class Operator(Binary):
    4608    arg_types = {"this": True, "operator": True, "expression": True}

arg_types = {'this': True, 'operator': True, 'expression': True}
key = 'operator'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  ilike
  eq
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  rlike
  div
  asc
  desc
Binary
  left
  right

class SimilarTo(Binary, Predicate): View Source

    4611class SimilarTo(Binary, Predicate):
    4612    pass

key = 'similarto'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right

class Slice(Binary): View Source

    4615class Slice(Binary):
    4616    arg_types = {"this": False, "expression": False}

arg_types = {'this': False, 'expression': False}
key = 'slice'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right

class Sub(Binary): View Source

    4619class Sub(Binary):
    4620    pass

key = 'sub'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  div
  asc
  desc
Binary
  arg_types
  left
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class Unary(Condition): View Source

    4625class Unary(Condition):
    4626    pass

key = 'unary'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  rlike
  div
  asc
  desc

class BitwiseNot(Unary): View Source

    4629class BitwiseNot(Unary):
    4630    pass

key = 'bitwisenot'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
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  eq
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  div
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  desc

class Not(Unary): View Source

    4633class Not(Unary):
    4634    pass

key = 'not'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  or_
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class Paren(Unary): View Source

    4637class Paren(Unary):
    4638    @property
    4639    def output_name(self) -> str:
    4640        return self.this.name

output_name: str View Source

    4638    @property
    4639    def output_name(self) -> str:
    4640        return self.this.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'paren'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
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  rlike
  div
  asc
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class Neg(Unary): View Source

    4643class Neg(Unary):
    4644    def to_py(self) -> int | Decimal:
    4645        if self.is_number:
    4646            return self.this.to_py() * -1
    4647        return super().to_py()

def to_py(self) -> int | decimal.Decimal: View Source

    4644    def to_py(self) -> int | Decimal:
    4645        if self.is_number:
    4646            return self.this.to_py() * -1
    4647        return super().to_py()

Returns a Python object equivalent of the SQL node.

key = 'neg'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Alias(Expression): View Source

    4650class Alias(Expression):
    4651    arg_types = {"this": True, "alias": False}
    4652
    4653    @property
    4654    def output_name(self) -> str:
    4655        return self.alias

arg_types = {'this': True, 'alias': False}
output_name: str View Source

    4653    @property
    4654    def output_name(self) -> str:
    4655        return self.alias

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'alias'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class PivotAlias(Alias): View Source

    4660class PivotAlias(Alias):
    4661    pass

key = 'pivotalias'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Alias
  arg_types
  output_name

class PivotAny(Expression): View Source

    4666class PivotAny(Expression):
    4667    arg_types = {"this": False}

arg_types = {'this': False}
key = 'pivotany'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Aliases(Expression): View Source

    4670class Aliases(Expression):
    4671    arg_types = {"this": True, "expressions": True}
    4672
    4673    @property
    4674    def aliases(self):
    4675        return self.expressions

arg_types = {'this': True, 'expressions': True}
aliases View Source

    4673    @property
    4674    def aliases(self):
    4675        return self.expressions

key = 'aliases'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class AtIndex(Expression): View Source

    4679class AtIndex(Expression):
    4680    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'atindex'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class AtTimeZone(Expression): View Source

    4683class AtTimeZone(Expression):
    4684    arg_types = {"this": True, "zone": True}

arg_types = {'this': True, 'zone': True}
key = 'attimezone'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class FromTimeZone(Expression): View Source

    4687class FromTimeZone(Expression):
    4688    arg_types = {"this": True, "zone": True}

arg_types = {'this': True, 'zone': True}
key = 'fromtimezone'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Between(Predicate): View Source

    4691class Between(Predicate):
    4692    arg_types = {"this": True, "low": True, "high": True}

arg_types = {'this': True, 'low': True, 'high': True}
key = 'between'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Bracket(Condition): View Source

    4695class Bracket(Condition):
    4696    # https://cloud.google.com/bigquery/docs/reference/standard-sql/operators#array_subscript_operator
    4697    arg_types = {
    4698        "this": True,
    4699        "expressions": True,
    4700        "offset": False,
    4701        "safe": False,
    4702        "returns_list_for_maps": False,
    4703    }
    4704
    4705    @property
    4706    def output_name(self) -> str:
    4707        if len(self.expressions) == 1:
    4708            return self.expressions[0].output_name
    4709
    4710        return super().output_name

arg_types = {'this': True, 'expressions': True, 'offset': False, 'safe': False, 'returns_list_for_maps': False}
output_name: str View Source

    4705    @property
    4706    def output_name(self) -> str:
    4707        if len(self.expressions) == 1:
    4708            return self.expressions[0].output_name
    4709
    4710        return super().output_name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'bracket'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Distinct(Expression): View Source

    4713class Distinct(Expression):
    4714    arg_types = {"expressions": False, "on": False}

arg_types = {'expressions': False, 'on': False}
key = 'distinct'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class In(Predicate): View Source

    4717class In(Predicate):
    4718    arg_types = {
    4719        "this": True,
    4720        "expressions": False,
    4721        "query": False,
    4722        "unnest": False,
    4723        "field": False,
    4724        "is_global": False,
    4725    }

arg_types = {'this': True, 'expressions': False, 'query': False, 'unnest': False, 'field': False, 'is_global': False}
key = 'in'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class ForIn(Expression): View Source

    4729class ForIn(Expression):
    4730    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'forin'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
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  eq
  neq
  rlike
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  asc
  desc

class TimeUnit(Expression): View Source

    4733class TimeUnit(Expression):
    4734    """Automatically converts unit arg into a var."""
    4735
    4736    arg_types = {"unit": False}
    4737
    4738    UNABBREVIATED_UNIT_NAME = {
    4739        "D": "DAY",
    4740        "H": "HOUR",
    4741        "M": "MINUTE",
    4742        "MS": "MILLISECOND",
    4743        "NS": "NANOSECOND",
    4744        "Q": "QUARTER",
    4745        "S": "SECOND",
    4746        "US": "MICROSECOND",
    4747        "W": "WEEK",
    4748        "Y": "YEAR",
    4749    }
    4750
    4751    VAR_LIKE = (Column, Literal, Var)
    4752
    4753    def __init__(self, **args):
    4754        unit = args.get("unit")
    4755        if isinstance(unit, self.VAR_LIKE):
    4756            args["unit"] = Var(
    4757                this=(self.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    4758            )
    4759        elif isinstance(unit, Week):
    4760            unit.set("this", Var(this=unit.this.name.upper()))
    4761
    4762        super().__init__(**args)
    4763
    4764    @property
    4765    def unit(self) -> t.Optional[Var | IntervalSpan]:
    4766        return self.args.get("unit")

Automatically converts unit arg into a var.

TimeUnit(**args) View Source

    4753    def __init__(self, **args):
    4754        unit = args.get("unit")
    4755        if isinstance(unit, self.VAR_LIKE):
    4756            args["unit"] = Var(
    4757                this=(self.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    4758            )
    4759        elif isinstance(unit, Week):
    4760            unit.set("this", Var(this=unit.this.name.upper()))
    4761
    4762        super().__init__(**args)

arg_types = {'unit': False}
UNABBREVIATED_UNIT_NAME = {'D': 'DAY', 'H': 'HOUR', 'M': 'MINUTE', 'MS': 'MILLISECOND', 'NS': 'NANOSECOND', 'Q': 'QUARTER', 'S': 'SECOND', 'US': 'MICROSECOND', 'W': 'WEEK', 'Y': 'YEAR'}
VAR_LIKE = (<class 'Column'>, <class 'Literal'>, <class 'Var'>)
unit: Union[Var, IntervalSpan, NoneType] View Source

    4764    @property
    4765    def unit(self) -> t.Optional[Var | IntervalSpan]:
    4766        return self.args.get("unit")

key = 'timeunit'

##### Inherited Members

Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class IntervalOp(TimeUnit): View Source

    4769class IntervalOp(TimeUnit):
    4770    arg_types = {"unit": True, "expression": True}
    4771
    4772    def interval(self):
    4773        return Interval(
    4774            this=self.expression.copy(),
    4775            unit=self.unit.copy(),
    4776        )

arg_types = {'unit': True, 'expression': True}
def interval(self): View Source

    4772    def interval(self):
    4773        return Interval(
    4774            this=self.expression.copy(),
    4775            unit=self.unit.copy(),
    4776        )

key = 'intervalop'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
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  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class IntervalSpan(DataType): View Source

    4782class IntervalSpan(DataType):
    4783    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'intervalspan'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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  between
  is_
  like
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  eq
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  rlike
  div
  asc
  desc
DataType
  Type
  STRUCT_TYPES
  NESTED_TYPES
  TEXT_TYPES
  SIGNED_INTEGER_TYPES
  UNSIGNED_INTEGER_TYPES
  INTEGER_TYPES
  FLOAT_TYPES
  REAL_TYPES
  NUMERIC_TYPES
  TEMPORAL_TYPES
  build
  is_type

class Interval(TimeUnit): View Source

    4786class Interval(TimeUnit):
    4787    arg_types = {"this": False, "unit": False}

arg_types = {'this': False, 'unit': False}
key = 'interval'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class IgnoreNulls(Expression): View Source

    4790class IgnoreNulls(Expression):
    4791    pass

key = 'ignorenulls'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class RespectNulls(Expression): View Source

    4794class RespectNulls(Expression):
    4795    pass

key = 'respectnulls'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class HavingMax(Expression): View Source

    4799class HavingMax(Expression):
    4800    arg_types = {"this": True, "expression": True, "max": True}

arg_types = {'this': True, 'expression': True, 'max': True}
key = 'havingmax'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Func(Condition): View Source

    4804class Func(Condition):
    4805    """
    4806    The base class for all function expressions.
    4807
    4808    Attributes:
    4809        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    4810            treated as a variable length argument and the argument's value will be stored as a list.
    4811        _sql_names (list): the SQL name (1st item in the list) and aliases (subsequent items) for this
    4812            function expression. These values are used to map this node to a name during parsing as
    4813            well as to provide the function's name during SQL string generation. By default the SQL
    4814            name is set to the expression's class name transformed to snake case.
    4815    """
    4816
    4817    is_var_len_args = False
    4818
    4819    @classmethod
    4820    def from_arg_list(cls, args):
    4821        if cls.is_var_len_args:
    4822            all_arg_keys = list(cls.arg_types)
    4823            # If this function supports variable length argument treat the last argument as such.
    4824            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    4825            num_non_var = len(non_var_len_arg_keys)
    4826
    4827            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    4828            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    4829        else:
    4830            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    4831
    4832        return cls(**args_dict)
    4833
    4834    @classmethod
    4835    def sql_names(cls):
    4836        if cls is Func:
    4837            raise NotImplementedError(
    4838                "SQL name is only supported by concrete function implementations"
    4839            )
    4840        if "_sql_names" not in cls.__dict__:
    4841            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    4842        return cls._sql_names
    4843
    4844    @classmethod
    4845    def sql_name(cls):
    4846        return cls.sql_names()[0]
    4847
    4848    @classmethod
    4849    def default_parser_mappings(cls):
    4850        return {name: cls.from_arg_list for name in cls.sql_names()}

The base class for all function expressions.

###### Attributes:

- is_var_len_args (bool): if set to True the last argument defined in arg_types will be treated as a variable length argument and the argument's value will be stored as a list.
- _sql_names (list): the SQL name (1st item in the list) and aliases (subsequent items) for this function expression. These values are used to map this node to a name during parsing as well as to provide the function's name during SQL string generation. By default the SQL name is set to the expression's class name transformed to snake case.

is_var_len_args = False
@classmethod
def from_arg_list(cls, args): View Source

    4819    @classmethod
    4820    def from_arg_list(cls, args):
    4821        if cls.is_var_len_args:
    4822            all_arg_keys = list(cls.arg_types)
    4823            # If this function supports variable length argument treat the last argument as such.
    4824            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    4825            num_non_var = len(non_var_len_arg_keys)
    4826
    4827            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    4828            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    4829        else:
    4830            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    4831
    4832        return cls(**args_dict)

@classmethod
def sql_names(cls): View Source

    4834    @classmethod
    4835    def sql_names(cls):
    4836        if cls is Func:
    4837            raise NotImplementedError(
    4838                "SQL name is only supported by concrete function implementations"
    4839            )
    4840        if "_sql_names" not in cls.__dict__:
    4841            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    4842        return cls._sql_names

@classmethod
def sql_name(cls): View Source

    4844    @classmethod
    4845    def sql_name(cls):
    4846        return cls.sql_names()[0]

@classmethod
def default_parser_mappings(cls): View Source

    4848    @classmethod
    4849    def default_parser_mappings(cls):
    4850        return {name: cls.from_arg_list for name in cls.sql_names()}

key = 'func'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class AggFunc(Func): View Source

    4853class AggFunc(Func):
    4854    pass

key = 'aggfunc'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ParameterizedAgg(AggFunc): View Source

    4857class ParameterizedAgg(AggFunc):
    4858    arg_types = {"this": True, "expressions": True, "params": True}

arg_types = {'this': True, 'expressions': True, 'params': True}
key = 'parameterizedagg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Abs(Func): View Source

    4861class Abs(Func):
    4862    pass

key = 'abs'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArgMax(AggFunc): View Source

    4865class ArgMax(AggFunc):
    4866    arg_types = {"this": True, "expression": True, "count": False}
    4867    _sql_names = ["ARG_MAX", "ARGMAX", "MAX_BY"]

arg_types = {'this': True, 'expression': True, 'count': False}
key = 'argmax'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArgMin(AggFunc): View Source

    4870class ArgMin(AggFunc):
    4871    arg_types = {"this": True, "expression": True, "count": False}
    4872    _sql_names = ["ARG_MIN", "ARGMIN", "MIN_BY"]

arg_types = {'this': True, 'expression': True, 'count': False}
key = 'argmin'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ApproxTopK(AggFunc): View Source

    4875class ApproxTopK(AggFunc):
    4876    arg_types = {"this": True, "expression": False, "counters": False}

arg_types = {'this': True, 'expression': False, 'counters': False}
key = 'approxtopk'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Flatten(Func): View Source

    4879class Flatten(Func):
    4880    pass

key = 'flatten'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Transform(Func): View Source

    4884class Transform(Func):
    4885    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'transform'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Anonymous(Func): View Source

    4888class Anonymous(Func):
    4889    arg_types = {"this": True, "expressions": False}
    4890    is_var_len_args = True
    4891
    4892    @property
    4893    def name(self) -> str:
    4894        return self.this if isinstance(self.this, str) else self.this.name

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
name: str View Source

    4892    @property
    4893    def name(self) -> str:
    4894        return self.this if isinstance(self.this, str) else self.this.name

key = 'anonymous'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class AnonymousAggFunc(AggFunc): View Source

    4897class AnonymousAggFunc(AggFunc):
    4898    arg_types = {"this": True, "expressions": False}
    4899    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'anonymousaggfunc'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CombinedAggFunc(AnonymousAggFunc): View Source

    4903class CombinedAggFunc(AnonymousAggFunc):
    4904    arg_types = {"this": True, "expressions": False, "parts": True}

arg_types = {'this': True, 'expressions': False, 'parts': True}
key = 'combinedaggfunc'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
AnonymousAggFunc
  is_var_len_args
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CombinedParameterizedAgg(ParameterizedAgg): View Source

    4907class CombinedParameterizedAgg(ParameterizedAgg):
    4908    arg_types = {"this": True, "expressions": True, "params": True, "parts": True}

arg_types = {'this': True, 'expressions': True, 'params': True, 'parts': True}
key = 'combinedparameterizedagg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Hll(AggFunc): View Source

    4913class Hll(AggFunc):
    4914    arg_types = {"this": True, "expressions": False}
    4915    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'hll'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ApproxDistinct(AggFunc): View Source

    4918class ApproxDistinct(AggFunc):
    4919    arg_types = {"this": True, "accuracy": False}
    4920    _sql_names = ["APPROX_DISTINCT", "APPROX_COUNT_DISTINCT"]

arg_types = {'this': True, 'accuracy': False}
key = 'approxdistinct'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Array(Func): View Source

    4923class Array(Func):
    4924    arg_types = {"expressions": False, "bracket_notation": False}
    4925    is_var_len_args = True

arg_types = {'expressions': False, 'bracket_notation': False}
is_var_len_args = True
key = 'array'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToArray(Func): View Source

    4929class ToArray(Func):
    4930    pass

key = 'toarray'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class List(Func): View Source

    4934class List(Func):
    4935    arg_types = {"expressions": False}
    4936    is_var_len_args = True

arg_types = {'expressions': False}
is_var_len_args = True
key = 'list'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Pad(Func): View Source

    4940class Pad(Func):
    4941    arg_types = {"this": True, "expression": True, "fill_pattern": False, "is_left": True}

arg_types = {'this': True, 'expression': True, 'fill_pattern': False, 'is_left': True}
key = 'pad'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToChar(Func): View Source

    4946class ToChar(Func):
    4947    arg_types = {"this": True, "format": False, "nlsparam": False}

arg_types = {'this': True, 'format': False, 'nlsparam': False}
key = 'tochar'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToNumber(Func): View Source

    4952class ToNumber(Func):
    4953    arg_types = {
    4954        "this": True,
    4955        "format": False,
    4956        "nlsparam": False,
    4957        "precision": False,
    4958        "scale": False,
    4959    }

arg_types = {'this': True, 'format': False, 'nlsparam': False, 'precision': False, 'scale': False}
key = 'tonumber'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Convert(Func): View Source

    4963class Convert(Func):
    4964    arg_types = {"this": True, "expression": True, "style": False}

arg_types = {'this': True, 'expression': True, 'style': False}
key = 'convert'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ConvertTimezone(Func): View Source

    4967class ConvertTimezone(Func):
    4968    arg_types = {"source_tz": False, "target_tz": True, "timestamp": True}

arg_types = {'source_tz': False, 'target_tz': True, 'timestamp': True}
key = 'converttimezone'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class GenerateSeries(Func): View Source

    4971class GenerateSeries(Func):
    4972    arg_types = {"start": True, "end": True, "step": False, "is_end_exclusive": False}

arg_types = {'start': True, 'end': True, 'step': False, 'is_end_exclusive': False}
key = 'generateseries'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ExplodingGenerateSeries(GenerateSeries): View Source

    4978class ExplodingGenerateSeries(GenerateSeries):
    4979    pass

key = 'explodinggenerateseries'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
GenerateSeries
  arg_types
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayAgg(AggFunc): View Source

    4982class ArrayAgg(AggFunc):
    4983    arg_types = {"this": True, "nulls_excluded": False}

arg_types = {'this': True, 'nulls_excluded': False}
key = 'arrayagg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayUniqueAgg(AggFunc): View Source

    4986class ArrayUniqueAgg(AggFunc):
    4987    pass

key = 'arrayuniqueagg'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayAll(Func): View Source

    4990class ArrayAll(Func):
    4991    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'arrayall'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayAny(Func): View Source

    4995class ArrayAny(Func):
    4996    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'arrayany'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayConcat(Func): View Source

    4999class ArrayConcat(Func):
    5000    _sql_names = ["ARRAY_CONCAT", "ARRAY_CAT"]
    5001    arg_types = {"this": True, "expressions": False}
    5002    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'arrayconcat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayConstructCompact(Func): View Source

    5005class ArrayConstructCompact(Func):
    5006    arg_types = {"expressions": True}
    5007    is_var_len_args = True

arg_types = {'expressions': True}
is_var_len_args = True
key = 'arrayconstructcompact'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayContains(Binary, Func): View Source

    5010class ArrayContains(Binary, Func):
    5011    _sql_names = ["ARRAY_CONTAINS", "ARRAY_HAS"]

key = 'arraycontains'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayContainsAll(Binary, Func): View Source

    5014class ArrayContainsAll(Binary, Func):
    5015    _sql_names = ["ARRAY_CONTAINS_ALL", "ARRAY_HAS_ALL"]

key = 'arraycontainsall'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayFilter(Func): View Source

    5018class ArrayFilter(Func):
    5019    arg_types = {"this": True, "expression": True}
    5020    _sql_names = ["FILTER", "ARRAY_FILTER"]

arg_types = {'this': True, 'expression': True}
key = 'arrayfilter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayToString(Func): View Source

    5023class ArrayToString(Func):
    5024    arg_types = {"this": True, "expression": True, "null": False}
    5025    _sql_names = ["ARRAY_TO_STRING", "ARRAY_JOIN"]

arg_types = {'this': True, 'expression': True, 'null': False}
key = 'arraytostring'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StringToArray(Func): View Source

    5028class StringToArray(Func):
    5029    arg_types = {"this": True, "expression": True, "null": False}
    5030    _sql_names = ["STRING_TO_ARRAY", "SPLIT_BY_STRING"]

arg_types = {'this': True, 'expression': True, 'null': False}
key = 'stringtoarray'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayOverlaps(Binary, Func): View Source

    5033class ArrayOverlaps(Binary, Func):
    5034    pass

key = 'arrayoverlaps'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArraySize(Func): View Source

    5037class ArraySize(Func):
    5038    arg_types = {"this": True, "expression": False}
    5039    _sql_names = ["ARRAY_SIZE", "ARRAY_LENGTH"]

arg_types = {'this': True, 'expression': False}
key = 'arraysize'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArraySort(Func): View Source

    5042class ArraySort(Func):
    5043    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'arraysort'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArraySum(Func): View Source

    5046class ArraySum(Func):
    5047    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'arraysum'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ArrayUnionAgg(AggFunc): View Source

    5050class ArrayUnionAgg(AggFunc):
    5051    pass

key = 'arrayunionagg'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Avg(AggFunc): View Source

    5054class Avg(AggFunc):
    5055    pass

key = 'avg'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class AnyValue(AggFunc): View Source

    5058class AnyValue(AggFunc):
    5059    pass

key = 'anyvalue'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Lag(AggFunc): View Source

    5062class Lag(AggFunc):
    5063    arg_types = {"this": True, "offset": False, "default": False}

arg_types = {'this': True, 'offset': False, 'default': False}
key = 'lag'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Lead(AggFunc): View Source

    5066class Lead(AggFunc):
    5067    arg_types = {"this": True, "offset": False, "default": False}

arg_types = {'this': True, 'offset': False, 'default': False}
key = 'lead'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class First(AggFunc): View Source

    5072class First(AggFunc):
    5073    pass

key = 'first'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Last(AggFunc): View Source

    5076class Last(AggFunc):
    5077    pass

key = 'last'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class FirstValue(AggFunc): View Source

    5080class FirstValue(AggFunc):
    5081    pass

key = 'firstvalue'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class LastValue(AggFunc): View Source

    5084class LastValue(AggFunc):
    5085    pass

key = 'lastvalue'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class NthValue(AggFunc): View Source

    5088class NthValue(AggFunc):
    5089    arg_types = {"this": True, "offset": True}

arg_types = {'this': True, 'offset': True}
key = 'nthvalue'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Case(Func): View Source

    5092class Case(Func):
    5093    arg_types = {"this": False, "ifs": True, "default": False}
    5094
    5095    def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case:
    5096        instance = maybe_copy(self, copy)
    5097        instance.append(
    5098            "ifs",
    5099            If(
    5100                this=maybe_parse(condition, copy=copy, **opts),
    5101                true=maybe_parse(then, copy=copy, **opts),
    5102            ),
    5103        )
    5104        return instance
    5105
    5106    def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case:
    5107        instance = maybe_copy(self, copy)
    5108        instance.set("default", maybe_parse(condition, copy=copy, **opts))
    5109        return instance

arg_types = {'this': False, 'ifs': True, 'default': False}
def when( self, condition: Union[str, Expression], then: Union[str, Expression], copy: bool = True, **opts) -> Case: View Source

    5095    def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case:
    5096        instance = maybe_copy(self, copy)
    5097        instance.append(
    5098            "ifs",
    5099            If(
    5100                this=maybe_parse(condition, copy=copy, **opts),
    5101                true=maybe_parse(then, copy=copy, **opts),
    5102            ),
    5103        )
    5104        return instance

def else_( self, condition: Union[str, Expression], copy: bool = True, **opts) -> Case: View Source

    5106    def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case:
    5107        instance = maybe_copy(self, copy)
    5108        instance.set("default", maybe_parse(condition, copy=copy, **opts))
    5109        return instance

key = 'case'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Cast(Func): View Source

    5112class Cast(Func):
    5113    arg_types = {
    5114        "this": True,
    5115        "to": True,
    5116        "format": False,
    5117        "safe": False,
    5118        "action": False,
    5119    }
    5120
    5121    @property
    5122    def name(self) -> str:
    5123        return self.this.name
    5124
    5125    @property
    5126    def to(self) -> DataType:
    5127        return self.args["to"]
    5128
    5129    @property
    5130    def output_name(self) -> str:
    5131        return self.name
    5132
    5133    def is_type(self, *dtypes: DATA_TYPE) -> bool:
    5134        """
    5135        Checks whether this Cast's DataType matches one of the provided data types. Nested types
    5136        like arrays or structs will be compared using "structural equivalence" semantics, so e.g.
    5137        array<int> != array<float>.
    5138
    5139        Args:
    5140            dtypes: the data types to compare this Cast's DataType to.
    5141
    5142        Returns:
    5143            True, if and only if there is a type in `dtypes` which is equal to this Cast's DataType.
    5144        """
    5145        return self.to.is_type(*dtypes)

arg_types = {'this': True, 'to': True, 'format': False, 'safe': False, 'action': False}
name: str View Source

    5121    @property
    5122    def name(self) -> str:
    5123        return self.this.name

to: DataType View Source

    5125    @property
    5126    def to(self) -> DataType:
    5127        return self.args["to"]

output_name: str View Source

    5129    @property
    5130    def output_name(self) -> str:
    5131        return self.name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

def is_type( self, *dtypes: Union[str, DataType, DataType.Type]) -> bool: View Source

    5133    def is_type(self, *dtypes: DATA_TYPE) -> bool:
    5134        """
    5135        Checks whether this Cast's DataType matches one of the provided data types. Nested types
    5136        like arrays or structs will be compared using "structural equivalence" semantics, so e.g.
    5137        array<int> != array<float>.
    5138
    5139        Args:
    5140            dtypes: the data types to compare this Cast's DataType to.
    5141
    5142        Returns:
    5143            True, if and only if there is a type in `dtypes` which is equal to this Cast's DataType.
    5144        """
    5145        return self.to.is_type(*dtypes)

Checks whether this Cast's DataType matches one of the provided data types. Nested types like arrays or structs will be compared using "structural equivalence" semantics, so e.g. array != array.

###### Arguments:

- dtypes: the data types to compare this Cast's DataType to.

###### Returns:

> True, if and only if there is a type in `dtypes` which is equal to this Cast's DataType.

key = 'cast'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TryCast(Cast): View Source

    5148class TryCast(Cast):
    5149    pass

key = 'trycast'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  alias_or_name
  type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Cast
  arg_types
  name
  to
  output_name
  is_type
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Try(Func): View Source

    5152class Try(Func):
    5153    pass

key = 'try'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CastToStrType(Func): View Source

    5156class CastToStrType(Func):
    5157    arg_types = {"this": True, "to": True}

arg_types = {'this': True, 'to': True}
key = 'casttostrtype'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Collate(Binary, Func): View Source

    5160class Collate(Binary, Func):
    5161    pass

key = 'collate'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Ceil(Func): View Source

    5164class Ceil(Func):
    5165    arg_types = {"this": True, "decimals": False}
    5166    _sql_names = ["CEIL", "CEILING"]

arg_types = {'this': True, 'decimals': False}
key = 'ceil'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Coalesce(Func): View Source

    5169class Coalesce(Func):
    5170    arg_types = {"this": True, "expressions": False, "is_nvl": False}
    5171    is_var_len_args = True
    5172    _sql_names = ["COALESCE", "IFNULL", "NVL"]

arg_types = {'this': True, 'expressions': False, 'is_nvl': False}
is_var_len_args = True
key = 'coalesce'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Chr(Func): View Source

    5175class Chr(Func):
    5176    arg_types = {"this": True, "charset": False, "expressions": False}
    5177    is_var_len_args = True
    5178    _sql_names = ["CHR", "CHAR"]

arg_types = {'this': True, 'charset': False, 'expressions': False}
is_var_len_args = True
key = 'chr'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Concat(Func): View Source

    5181class Concat(Func):
    5182    arg_types = {"expressions": True, "safe": False, "coalesce": False}
    5183    is_var_len_args = True

arg_types = {'expressions': True, 'safe': False, 'coalesce': False}
is_var_len_args = True
key = 'concat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ConcatWs(Concat): View Source

    5186class ConcatWs(Concat):
    5187    _sql_names = ["CONCAT_WS"]

key = 'concatws'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Concat
  arg_types
  is_var_len_args
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ConnectByRoot(Func): View Source

    5191class ConnectByRoot(Func):
    5192    pass

key = 'connectbyroot'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Count(AggFunc): View Source

    5195class Count(AggFunc):
    5196    arg_types = {"this": False, "expressions": False, "big_int": False}
    5197    is_var_len_args = True

arg_types = {'this': False, 'expressions': False, 'big_int': False}
is_var_len_args = True
key = 'count'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CountIf(AggFunc): View Source

    5200class CountIf(AggFunc):
    5201    _sql_names = ["COUNT_IF", "COUNTIF"]

key = 'countif'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Cbrt(Func): View Source

    5205class Cbrt(Func):
    5206    pass

key = 'cbrt'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CurrentDate(Func): View Source

    5209class CurrentDate(Func):
    5210    arg_types = {"this": False}

arg_types = {'this': False}
key = 'currentdate'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CurrentDatetime(Func): View Source

    5213class CurrentDatetime(Func):
    5214    arg_types = {"this": False}

arg_types = {'this': False}
key = 'currentdatetime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CurrentTime(Func): View Source

    5217class CurrentTime(Func):
    5218    arg_types = {"this": False}

arg_types = {'this': False}
key = 'currenttime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CurrentTimestamp(Func): View Source

    5221class CurrentTimestamp(Func):
    5222    arg_types = {"this": False, "sysdate": False}

arg_types = {'this': False, 'sysdate': False}
key = 'currenttimestamp'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CurrentUser(Func): View Source

    5225class CurrentUser(Func):
    5226    arg_types = {"this": False}

arg_types = {'this': False}
key = 'currentuser'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DateAdd(Func, IntervalOp): View Source

    5229class DateAdd(Func, IntervalOp):
    5230    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'dateadd'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
IntervalOp
  interval
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DateSub(Func, IntervalOp): View Source

    5233class DateSub(Func, IntervalOp):
    5234    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'datesub'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
IntervalOp
  interval
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DateDiff(Func, TimeUnit): View Source

    5237class DateDiff(Func, TimeUnit):
    5238    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    5239    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'datediff'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DateTrunc(Func): View Source

    5242class DateTrunc(Func):
    5243    arg_types = {"unit": True, "this": True, "zone": False}
    5244
    5245    def __init__(self, **args):
    5246        unit = args.get("unit")
    5247        if isinstance(unit, TimeUnit.VAR_LIKE):
    5248            args["unit"] = Literal.string(
    5249                (TimeUnit.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    5250            )
    5251        elif isinstance(unit, Week):
    5252            unit.set("this", Literal.string(unit.this.name.upper()))
    5253
    5254        super().__init__(**args)
    5255
    5256    @property
    5257    def unit(self) -> Expression:
    5258        return self.args["unit"]

DateTrunc(**args) View Source

    5245    def __init__(self, **args):
    5246        unit = args.get("unit")
    5247        if isinstance(unit, TimeUnit.VAR_LIKE):
    5248            args["unit"] = Literal.string(
    5249                (TimeUnit.UNABBREVIATED_UNIT_NAME.get(unit.name) or unit.name).upper()
    5250            )
    5251        elif isinstance(unit, Week):
    5252            unit.set("this", Literal.string(unit.this.name.upper()))
    5253
    5254        super().__init__(**args)

arg_types = {'unit': True, 'this': True, 'zone': False}
unit: Expression View Source

    5256    @property
    5257    def unit(self) -> Expression:
    5258        return self.args["unit"]

key = 'datetrunc'

##### Inherited Members

Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Datetime(Func): View Source

    5263class Datetime(Func):
    5264    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'datetime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DatetimeAdd(Func, IntervalOp): View Source

    5267class DatetimeAdd(Func, IntervalOp):
    5268    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'datetimeadd'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
IntervalOp
  interval
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DatetimeSub(Func, IntervalOp): View Source

    5271class DatetimeSub(Func, IntervalOp):
    5272    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'datetimesub'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
IntervalOp
  interval
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DatetimeDiff(Func, TimeUnit): View Source

    5275class DatetimeDiff(Func, TimeUnit):
    5276    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'datetimediff'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DatetimeTrunc(Func, TimeUnit): View Source

    5279class DatetimeTrunc(Func, TimeUnit):
    5280    arg_types = {"this": True, "unit": True, "zone": False}

arg_types = {'this': True, 'unit': True, 'zone': False}
key = 'datetimetrunc'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DayOfWeek(Func): View Source

    5283class DayOfWeek(Func):
    5284    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]

key = 'dayofweek'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DayOfWeekIso(Func): View Source

    5289class DayOfWeekIso(Func):
    5290    _sql_names = ["DAYOFWEEK_ISO", "ISODOW"]

key = 'dayofweekiso'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DayOfMonth(Func): View Source

    5293class DayOfMonth(Func):
    5294    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]

key = 'dayofmonth'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DayOfYear(Func): View Source

    5297class DayOfYear(Func):
    5298    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]

key = 'dayofyear'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToDays(Func): View Source

    5301class ToDays(Func):
    5302    pass

key = 'todays'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class WeekOfYear(Func): View Source

    5305class WeekOfYear(Func):
    5306    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]

key = 'weekofyear'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class MonthsBetween(Func): View Source

    5309class MonthsBetween(Func):
    5310    arg_types = {"this": True, "expression": True, "roundoff": False}

arg_types = {'this': True, 'expression': True, 'roundoff': False}
key = 'monthsbetween'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class LastDay(Func, TimeUnit): View Source

    5313class LastDay(Func, TimeUnit):
    5314    _sql_names = ["LAST_DAY", "LAST_DAY_OF_MONTH"]
    5315    arg_types = {"this": True, "unit": False}

arg_types = {'this': True, 'unit': False}
key = 'lastday'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Extract(Func): View Source

    5318class Extract(Func):
    5319    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'extract'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Timestamp(Func): View Source

    5322class Timestamp(Func):
    5323    arg_types = {"this": False, "zone": False, "with_tz": False}

arg_types = {'this': False, 'zone': False, 'with_tz': False}
key = 'timestamp'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimestampAdd(Func, TimeUnit): View Source

    5326class TimestampAdd(Func, TimeUnit):
    5327    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timestampadd'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimestampSub(Func, TimeUnit): View Source

    5330class TimestampSub(Func, TimeUnit):
    5331    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timestampsub'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimestampDiff(Func, TimeUnit): View Source

    5334class TimestampDiff(Func, TimeUnit):
    5335    _sql_names = ["TIMESTAMPDIFF", "TIMESTAMP_DIFF"]
    5336    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timestampdiff'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimestampTrunc(Func, TimeUnit): View Source

    5339class TimestampTrunc(Func, TimeUnit):
    5340    arg_types = {"this": True, "unit": True, "zone": False}

arg_types = {'this': True, 'unit': True, 'zone': False}
key = 'timestamptrunc'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimeAdd(Func, TimeUnit): View Source

    5343class TimeAdd(Func, TimeUnit):
    5344    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timeadd'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimeSub(Func, TimeUnit): View Source

    5347class TimeSub(Func, TimeUnit):
    5348    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timesub'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimeDiff(Func, TimeUnit): View Source

    5351class TimeDiff(Func, TimeUnit):
    5352    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'timediff'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TimeTrunc(Func, TimeUnit): View Source

    5355class TimeTrunc(Func, TimeUnit):
    5356    arg_types = {"this": True, "unit": True, "zone": False}

arg_types = {'this': True, 'unit': True, 'zone': False}
key = 'timetrunc'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class DateFromParts(Func): View Source

    5359class DateFromParts(Func):
    5360    _sql_names = ["DATE_FROM_PARTS", "DATEFROMPARTS"]
    5361    arg_types = {"year": True, "month": True, "day": True}

arg_types = {'year': True, 'month': True, 'day': True}
key = 'datefromparts'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeFromParts(Func): View Source

    5364class TimeFromParts(Func):
    5365    _sql_names = ["TIME_FROM_PARTS", "TIMEFROMPARTS"]
    5366    arg_types = {
    5367        "hour": True,
    5368        "min": True,
    5369        "sec": True,
    5370        "nano": False,
    5371        "fractions": False,
    5372        "precision": False,
    5373    }

arg_types = {'hour': True, 'min': True, 'sec': True, 'nano': False, 'fractions': False, 'precision': False}
key = 'timefromparts'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DateStrToDate(Func): View Source

    5376class DateStrToDate(Func):
    5377    pass

key = 'datestrtodate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DateToDateStr(Func): View Source

    5380class DateToDateStr(Func):
    5381    pass

key = 'datetodatestr'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DateToDi(Func): View Source

    5384class DateToDi(Func):
    5385    pass

key = 'datetodi'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Date(Func): View Source

    5389class Date(Func):
    5390    arg_types = {"this": False, "zone": False, "expressions": False}
    5391    is_var_len_args = True

arg_types = {'this': False, 'zone': False, 'expressions': False}
is_var_len_args = True
key = 'date'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Day(Func): View Source

    5394class Day(Func):
    5395    pass

key = 'day'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Decode(Func): View Source

    5398class Decode(Func):
    5399    arg_types = {"this": True, "charset": True, "replace": False}

arg_types = {'this': True, 'charset': True, 'replace': False}
key = 'decode'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class DiToDate(Func): View Source

    5402class DiToDate(Func):
    5403    pass

key = 'ditodate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Encode(Func): View Source

    5406class Encode(Func):
    5407    arg_types = {"this": True, "charset": True}

arg_types = {'this': True, 'charset': True}
key = 'encode'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Exp(Func): View Source

    5410class Exp(Func):
    5411    pass

key = 'exp'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Explode(Func): View Source

    5415class Explode(Func):
    5416    arg_types = {"this": True, "expressions": False}
    5417    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'explode'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Inline(Func): View Source

    5421class Inline(Func):
    5422    pass

key = 'inline'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ExplodeOuter(Explode): View Source

    5425class ExplodeOuter(Explode):
    5426    pass

key = 'explodeouter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Explode
  arg_types
  is_var_len_args
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Posexplode(Explode): View Source

    5429class Posexplode(Explode):
    5430    pass

key = 'posexplode'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Explode
  arg_types
  is_var_len_args
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class PosexplodeOuter(Posexplode, ExplodeOuter): View Source

    5433class PosexplodeOuter(Posexplode, ExplodeOuter):
    5434    pass

key = 'posexplodeouter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Explode
  arg_types
  is_var_len_args
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Unnest(Func, UDTF): View Source

    5437class Unnest(Func, UDTF):
    5438    arg_types = {
    5439        "expressions": True,
    5440        "alias": False,
    5441        "offset": False,
    5442        "explode_array": False,
    5443    }
    5444
    5445    @property
    5446    def selects(self) -> t.List[Expression]:
    5447        columns = super().selects
    5448        offset = self.args.get("offset")
    5449        if offset:
    5450            columns = columns + [to_identifier("offset") if offset is True else offset]
    5451        return columns

arg_types = {'expressions': True, 'alias': False, 'offset': False, 'explode_array': False}
selects: List[Expression] View Source

    5445    @property
    5446    def selects(self) -> t.List[Expression]:
    5447        columns = super().selects
    5448        offset = self.args.get("offset")
    5449        if offset:
    5450            columns = columns + [to_identifier("offset") if offset is True else offset]
    5451        return columns

key = 'unnest'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
DerivedTable
  named_selects

class Floor(Func): View Source

    5454class Floor(Func):
    5455    arg_types = {"this": True, "decimals": False}

arg_types = {'this': True, 'decimals': False}
key = 'floor'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class FromBase64(Func): View Source

    5458class FromBase64(Func):
    5459    pass

key = 'frombase64'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToBase64(Func): View Source

    5462class ToBase64(Func):
    5463    pass

key = 'tobase64'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class FromISO8601Timestamp(Func): View Source

    5467class FromISO8601Timestamp(Func):
    5468    _sql_names = ["FROM_ISO8601_TIMESTAMP"]

key = 'fromiso8601timestamp'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class GapFill(Func): View Source

    5471class GapFill(Func):
    5472    arg_types = {
    5473        "this": True,
    5474        "ts_column": True,
    5475        "bucket_width": True,
    5476        "partitioning_columns": False,
    5477        "value_columns": False,
    5478        "origin": False,
    5479        "ignore_nulls": False,
    5480    }

arg_types = {'this': True, 'ts_column': True, 'bucket_width': True, 'partitioning_columns': False, 'value_columns': False, 'origin': False, 'ignore_nulls': False}
key = 'gapfill'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class GenerateDateArray(Func): View Source

    5484class GenerateDateArray(Func):
    5485    arg_types = {"start": True, "end": True, "step": False}

arg_types = {'start': True, 'end': True, 'step': False}
key = 'generatedatearray'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class GenerateTimestampArray(Func): View Source

    5489class GenerateTimestampArray(Func):
    5490    arg_types = {"start": True, "end": True, "step": True}

arg_types = {'start': True, 'end': True, 'step': True}
key = 'generatetimestamparray'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Greatest(Func): View Source

    5493class Greatest(Func):
    5494    arg_types = {"this": True, "expressions": False}
    5495    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'greatest'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class GroupConcat(AggFunc): View Source

    5498class GroupConcat(AggFunc):
    5499    arg_types = {"this": True, "separator": False}

arg_types = {'this': True, 'separator': False}
key = 'groupconcat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Hex(Func): View Source

    5502class Hex(Func):
    5503    pass

key = 'hex'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class LowerHex(Hex): View Source

    5506class LowerHex(Hex):
    5507    pass

key = 'lowerhex'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Xor(Connector, Func): View Source

    5510class Xor(Connector, Func):
    5511    arg_types = {"this": False, "expression": False, "expressions": False}

arg_types = {'this': False, 'expression': False, 'expressions': False}
key = 'xor'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
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  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class If(Func): View Source

    5514class If(Func):
    5515    arg_types = {"this": True, "true": True, "false": False}
    5516    _sql_names = ["IF", "IIF"]

arg_types = {'this': True, 'true': True, 'false': False}
key = 'if'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Nullif(Func): View Source

    5519class Nullif(Func):
    5520    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'nullif'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Initcap(Func): View Source

    5523class Initcap(Func):
    5524    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'initcap'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class IsNan(Func): View Source

    5527class IsNan(Func):
    5528    _sql_names = ["IS_NAN", "ISNAN"]

key = 'isnan'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class IsInf(Func): View Source

    5531class IsInf(Func):
    5532    _sql_names = ["IS_INF", "ISINF"]

key = 'isinf'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSON(Expression): View Source

    5536class JSON(Expression):
    5537    arg_types = {"this": False, "with": False, "unique": False}

arg_types = {'this': False, 'with': False, 'unique': False}
key = 'json'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPath(Expression): View Source

    5540class JSONPath(Expression):
    5541    arg_types = {"expressions": True}
    5542
    5543    @property
    5544    def output_name(self) -> str:
    5545        last_segment = self.expressions[-1].this
    5546        return last_segment if isinstance(last_segment, str) else ""

arg_types = {'expressions': True}
output_name: str View Source

    5543    @property
    5544    def output_name(self) -> str:
    5545        last_segment = self.expressions[-1].this
    5546        return last_segment if isinstance(last_segment, str) else ""

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'jsonpath'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathPart(Expression): View Source

    5549class JSONPathPart(Expression):
    5550    arg_types = {}

arg_types = {}
key = 'jsonpathpart'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathFilter(JSONPathPart): View Source

    5553class JSONPathFilter(JSONPathPart):
    5554    arg_types = {"this": True}

arg_types = {'this': True}
key = 'jsonpathfilter'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathKey(JSONPathPart): View Source

    5557class JSONPathKey(JSONPathPart):
    5558    arg_types = {"this": True}

arg_types = {'this': True}
key = 'jsonpathkey'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathRecursive(JSONPathPart): View Source

    5561class JSONPathRecursive(JSONPathPart):
    5562    arg_types = {"this": False}

arg_types = {'this': False}
key = 'jsonpathrecursive'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathRoot(JSONPathPart): View Source

    5565class JSONPathRoot(JSONPathPart):
    5566    pass

key = 'jsonpathroot'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
JSONPathPart
  arg_types

class JSONPathScript(JSONPathPart): View Source

    5569class JSONPathScript(JSONPathPart):
    5570    arg_types = {"this": True}

arg_types = {'this': True}
key = 'jsonpathscript'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathSlice(JSONPathPart): View Source

    5573class JSONPathSlice(JSONPathPart):
    5574    arg_types = {"start": False, "end": False, "step": False}

arg_types = {'start': False, 'end': False, 'step': False}
key = 'jsonpathslice'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathSelector(JSONPathPart): View Source

    5577class JSONPathSelector(JSONPathPart):
    5578    arg_types = {"this": True}

arg_types = {'this': True}
key = 'jsonpathselector'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathSubscript(JSONPathPart): View Source

    5581class JSONPathSubscript(JSONPathPart):
    5582    arg_types = {"this": True}

arg_types = {'this': True}
key = 'jsonpathsubscript'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathUnion(JSONPathPart): View Source

    5585class JSONPathUnion(JSONPathPart):
    5586    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'jsonpathunion'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONPathWildcard(JSONPathPart): View Source

    5589class JSONPathWildcard(JSONPathPart):
    5590    pass

key = 'jsonpathwildcard'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
JSONPathPart
  arg_types

class FormatJson(Expression): View Source

    5593class FormatJson(Expression):
    5594    pass

key = 'formatjson'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONKeyValue(Expression): View Source

    5597class JSONKeyValue(Expression):
    5598    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'jsonkeyvalue'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONObject(Func): View Source

    5601class JSONObject(Func):
    5602    arg_types = {
    5603        "expressions": False,
    5604        "null_handling": False,
    5605        "unique_keys": False,
    5606        "return_type": False,
    5607        "encoding": False,
    5608    }

arg_types = {'expressions': False, 'null_handling': False, 'unique_keys': False, 'return_type': False, 'encoding': False}
key = 'jsonobject'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONObjectAgg(AggFunc): View Source

    5611class JSONObjectAgg(AggFunc):
    5612    arg_types = {
    5613        "expressions": False,
    5614        "null_handling": False,
    5615        "unique_keys": False,
    5616        "return_type": False,
    5617        "encoding": False,
    5618    }

arg_types = {'expressions': False, 'null_handling': False, 'unique_keys': False, 'return_type': False, 'encoding': False}
key = 'jsonobjectagg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONArray(Func): View Source

    5622class JSONArray(Func):
    5623    arg_types = {
    5624        "expressions": True,
    5625        "null_handling": False,
    5626        "return_type": False,
    5627        "strict": False,
    5628    }

arg_types = {'expressions': True, 'null_handling': False, 'return_type': False, 'strict': False}
key = 'jsonarray'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONArrayAgg(Func): View Source

    5632class JSONArrayAgg(Func):
    5633    arg_types = {
    5634        "this": True,
    5635        "order": False,
    5636        "null_handling": False,
    5637        "return_type": False,
    5638        "strict": False,
    5639    }

arg_types = {'this': True, 'order': False, 'null_handling': False, 'return_type': False, 'strict': False}
key = 'jsonarrayagg'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONExists(Func): View Source

    5642class JSONExists(Func):
    5643    arg_types = {"this": True, "path": True, "passing": False, "on_condition": False}

arg_types = {'this': True, 'path': True, 'passing': False, 'on_condition': False}
key = 'jsonexists'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONColumnDef(Expression): View Source

    5648class JSONColumnDef(Expression):
    5649    arg_types = {"this": False, "kind": False, "path": False, "nested_schema": False}

arg_types = {'this': False, 'kind': False, 'path': False, 'nested_schema': False}
key = 'jsoncolumndef'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONSchema(Expression): View Source

    5652class JSONSchema(Expression):
    5653    arg_types = {"expressions": True}

arg_types = {'expressions': True}
key = 'jsonschema'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONValue(Expression): View Source

    5657class JSONValue(Expression):
    5658    arg_types = {
    5659        "this": True,
    5660        "path": True,
    5661        "returning": False,
    5662        "on_condition": False,
    5663    }

arg_types = {'this': True, 'path': True, 'returning': False, 'on_condition': False}
key = 'jsonvalue'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class JSONTable(Func): View Source

    5667class JSONTable(Func):
    5668    arg_types = {
    5669        "this": True,
    5670        "schema": True,
    5671        "path": False,
    5672        "error_handling": False,
    5673        "empty_handling": False,
    5674    }

arg_types = {'this': True, 'schema': True, 'path': False, 'error_handling': False, 'empty_handling': False}
key = 'jsontable'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ObjectInsert(Func): View Source

    5678class ObjectInsert(Func):
    5679    arg_types = {
    5680        "this": True,
    5681        "key": True,
    5682        "value": True,
    5683        "update_flag": False,
    5684    }

arg_types = {'this': True, 'key': True, 'value': True, 'update_flag': False}
key = 'objectinsert'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class OpenJSONColumnDef(Expression): View Source

    5687class OpenJSONColumnDef(Expression):
    5688    arg_types = {"this": True, "kind": True, "path": False, "as_json": False}

arg_types = {'this': True, 'kind': True, 'path': False, 'as_json': False}
key = 'openjsoncolumndef'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class OpenJSON(Func): View Source

    5691class OpenJSON(Func):
    5692    arg_types = {"this": True, "path": False, "expressions": False}

arg_types = {'this': True, 'path': False, 'expressions': False}
key = 'openjson'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONBContains(Binary, Func): View Source

    5695class JSONBContains(Binary, Func):
    5696    _sql_names = ["JSONB_CONTAINS"]

key = 'jsonbcontains'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONExtract(Binary, Func): View Source

    5699class JSONExtract(Binary, Func):
    5700    arg_types = {
    5701        "this": True,
    5702        "expression": True,
    5703        "only_json_types": False,
    5704        "expressions": False,
    5705        "variant_extract": False,
    5706    }
    5707    _sql_names = ["JSON_EXTRACT"]
    5708    is_var_len_args = True
    5709
    5710    @property
    5711    def output_name(self) -> str:
    5712        return self.expression.output_name if not self.expressions else ""

arg_types = {'this': True, 'expression': True, 'only_json_types': False, 'expressions': False, 'variant_extract': False}
is_var_len_args = True
output_name: str View Source

    5710    @property
    5711    def output_name(self) -> str:
    5712        return self.expression.output_name if not self.expressions else ""

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'jsonextract'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONExtractScalar(Binary, Func): View Source

    5715class JSONExtractScalar(Binary, Func):
    5716    arg_types = {"this": True, "expression": True, "only_json_types": False, "expressions": False}
    5717    _sql_names = ["JSON_EXTRACT_SCALAR"]
    5718    is_var_len_args = True
    5719
    5720    @property
    5721    def output_name(self) -> str:
    5722        return self.expression.output_name

arg_types = {'this': True, 'expression': True, 'only_json_types': False, 'expressions': False}
is_var_len_args = True
output_name: str View Source

    5720    @property
    5721    def output_name(self) -> str:
    5722        return self.expression.output_name

Name of the output column if this expression is a selection.

If the Expression has no output name, an empty string is returned.

###### Example:

>     >>> from sqlglot import parse_one
>     >>> parse_one("SELECT a")sqlglot.expressions[0].output_name
>     'a'
>     >>> parse_one("SELECT b AS c")sqlglot.expressions[0].output_name
>     'c'
>     >>> parse_one("SELECT 1 + 2")sqlglot.expressions[0].output_name
>     ''

key = 'jsonextractscalar'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONBExtract(Binary, Func): View Source

    5725class JSONBExtract(Binary, Func):
    5726    _sql_names = ["JSONB_EXTRACT"]

key = 'jsonbextract'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONBExtractScalar(Binary, Func): View Source

    5729class JSONBExtractScalar(Binary, Func):
    5730    _sql_names = ["JSONB_EXTRACT_SCALAR"]

key = 'jsonbextractscalar'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONFormat(Func): View Source

    5733class JSONFormat(Func):
    5734    arg_types = {"this": False, "options": False}
    5735    _sql_names = ["JSON_FORMAT"]

arg_types = {'this': False, 'options': False}
key = 'jsonformat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class JSONArrayContains(Binary, Predicate, Func): View Source

    5739class JSONArrayContains(Binary, Predicate, Func):
    5740    _sql_names = ["JSON_ARRAY_CONTAINS"]

key = 'jsonarraycontains'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ParseJSON(Func): View Source

    5743class ParseJSON(Func):
    5744    # BigQuery, Snowflake have PARSE_JSON, Presto has JSON_PARSE
    5745    # Snowflake also has TRY_PARSE_JSON, which is represented using `safe`
    5746    _sql_names = ["PARSE_JSON", "JSON_PARSE"]
    5747    arg_types = {"this": True, "expression": False, "safe": False}

arg_types = {'this': True, 'expression': False, 'safe': False}
key = 'parsejson'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Least(Func): View Source

    5750class Least(Func):
    5751    arg_types = {"this": True, "expressions": False}
    5752    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'least'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Left(Func): View Source

    5755class Left(Func):
    5756    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'left'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Right(Func): View Source

    5759class Right(Func):
    5760    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'right'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Length(Func): View Source

    5763class Length(Func):
    5764    arg_types = {"this": True, "binary": False}
    5765    _sql_names = ["LENGTH", "LEN"]

arg_types = {'this': True, 'binary': False}
key = 'length'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Levenshtein(Func): View Source

    5768class Levenshtein(Func):
    5769    arg_types = {
    5770        "this": True,
    5771        "expression": False,
    5772        "ins_cost": False,
    5773        "del_cost": False,
    5774        "sub_cost": False,
    5775    }

arg_types = {'this': True, 'expression': False, 'ins_cost': False, 'del_cost': False, 'sub_cost': False}
key = 'levenshtein'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Ln(Func): View Source

    5778class Ln(Func):
    5779    pass

key = 'ln'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Log(Func): View Source

    5782class Log(Func):
    5783    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'log'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class LogicalOr(AggFunc): View Source

    5786class LogicalOr(AggFunc):
    5787    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]

key = 'logicalor'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class LogicalAnd(AggFunc): View Source

    5790class LogicalAnd(AggFunc):
    5791    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]

key = 'logicaland'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Lower(Func): View Source

    5794class Lower(Func):
    5795    _sql_names = ["LOWER", "LCASE"]

key = 'lower'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Map(Func): View Source

    5798class Map(Func):
    5799    arg_types = {"keys": False, "values": False}
    5800
    5801    @property
    5802    def keys(self) -> t.List[Expression]:
    5803        keys = self.args.get("keys")
    5804        return keys.expressions if keys else []
    5805
    5806    @property
    5807    def values(self) -> t.List[Expression]:
    5808        values = self.args.get("values")
    5809        return values.expressions if values else []

arg_types = {'keys': False, 'values': False}
keys: List[Expression] View Source

    5801    @property
    5802    def keys(self) -> t.List[Expression]:
    5803        keys = self.args.get("keys")
    5804        return keys.expressions if keys else []

values: List[Expression] View Source

    5806    @property
    5807    def values(self) -> t.List[Expression]:
    5808        values = self.args.get("values")
    5809        return values.expressions if values else []

key = 'map'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ToMap(Func): View Source

    5813class ToMap(Func):
    5814    pass

key = 'tomap'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class MapFromEntries(Func): View Source

    5817class MapFromEntries(Func):
    5818    pass

key = 'mapfromentries'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ScopeResolution(Expression): View Source

    5822class ScopeResolution(Expression):
    5823    arg_types = {"this": False, "expression": True}

arg_types = {'this': False, 'expression': True}
key = 'scoperesolution'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class Stream(Expression): View Source

    5826class Stream(Expression):
    5827    pass

key = 'stream'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class StarMap(Func): View Source

    5830class StarMap(Func):
    5831    pass

key = 'starmap'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class VarMap(Func): View Source

    5834class VarMap(Func):
    5835    arg_types = {"keys": True, "values": True}
    5836    is_var_len_args = True
    5837
    5838    @property
    5839    def keys(self) -> t.List[Expression]:
    5840        return self.args["keys"].expressions
    5841
    5842    @property
    5843    def values(self) -> t.List[Expression]:
    5844        return self.args["values"].expressions

arg_types = {'keys': True, 'values': True}
is_var_len_args = True
keys: List[Expression] View Source

    5838    @property
    5839    def keys(self) -> t.List[Expression]:
    5840        return self.args["keys"].expressions

values: List[Expression] View Source

    5842    @property
    5843    def values(self) -> t.List[Expression]:
    5844        return self.args["values"].expressions

key = 'varmap'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class MatchAgainst(Func): View Source

    5848class MatchAgainst(Func):
    5849    arg_types = {"this": True, "expressions": True, "modifier": False}

arg_types = {'this': True, 'expressions': True, 'modifier': False}
key = 'matchagainst'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Max(AggFunc): View Source

    5852class Max(AggFunc):
    5853    arg_types = {"this": True, "expressions": False}
    5854    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'max'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class MD5(Func): View Source

    5857class MD5(Func):
    5858    _sql_names = ["MD5"]

key = 'md5'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class MD5Digest(Func): View Source

    5862class MD5Digest(Func):
    5863    _sql_names = ["MD5_DIGEST"]

key = 'md5digest'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Min(AggFunc): View Source

    5866class Min(AggFunc):
    5867    arg_types = {"this": True, "expressions": False}
    5868    is_var_len_args = True

arg_types = {'this': True, 'expressions': False}
is_var_len_args = True
key = 'min'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Month(Func): View Source

    5871class Month(Func):
    5872    pass

key = 'month'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class AddMonths(Func): View Source

    5875class AddMonths(Func):
    5876    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'addmonths'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Nvl2(Func): View Source

    5879class Nvl2(Func):
    5880    arg_types = {"this": True, "true": True, "false": False}

arg_types = {'this': True, 'true': True, 'false': False}
key = 'nvl2'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Normalize(Func): View Source

    5883class Normalize(Func):
    5884    arg_types = {"this": True, "form": False}

arg_types = {'this': True, 'form': False}
key = 'normalize'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Predict(Func): View Source

    5888class Predict(Func):
    5889    arg_types = {"this": True, "expression": True, "params_struct": False}

arg_types = {'this': True, 'expression': True, 'params_struct': False}
key = 'predict'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Pow(Binary, Func): View Source

    5892class Pow(Binary, Func):
    5893    _sql_names = ["POWER", "POW"]

key = 'pow'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class PercentileCont(AggFunc): View Source

    5896class PercentileCont(AggFunc):
    5897    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'percentilecont'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class PercentileDisc(AggFunc): View Source

    5900class PercentileDisc(AggFunc):
    5901    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'percentiledisc'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Quantile(AggFunc): View Source

    5904class Quantile(AggFunc):
    5905    arg_types = {"this": True, "quantile": True}

arg_types = {'this': True, 'quantile': True}
key = 'quantile'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ApproxQuantile(Quantile): View Source

    5908class ApproxQuantile(Quantile):
    5909    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}

arg_types = {'this': True, 'quantile': True, 'accuracy': False, 'weight': False}
key = 'approxquantile'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Quarter(Func): View Source

    5912class Quarter(Func):
    5913    pass

key = 'quarter'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Rand(Func): View Source

    5918class Rand(Func):
    5919    _sql_names = ["RAND", "RANDOM"]
    5920    arg_types = {"this": False, "lower": False, "upper": False}

arg_types = {'this': False, 'lower': False, 'upper': False}
key = 'rand'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Randn(Func): View Source

    5923class Randn(Func):
    5924    arg_types = {"this": False}

arg_types = {'this': False}
key = 'randn'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RangeN(Func): View Source

    5927class RangeN(Func):
    5928    arg_types = {"this": True, "expressions": True, "each": False}

arg_types = {'this': True, 'expressions': True, 'each': False}
key = 'rangen'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class ReadCSV(Func): View Source

    5931class ReadCSV(Func):
    5932    _sql_names = ["READ_CSV"]
    5933    is_var_len_args = True
    5934    arg_types = {"this": True, "expressions": False}

is_var_len_args = True
arg_types = {'this': True, 'expressions': False}
key = 'readcsv'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Reduce(Func): View Source

    5937class Reduce(Func):
    5938    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}

arg_types = {'this': True, 'initial': True, 'merge': True, 'finish': False}
key = 'reduce'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RegexpExtract(Func): View Source

    5941class RegexpExtract(Func):
    5942    arg_types = {
    5943        "this": True,
    5944        "expression": True,
    5945        "position": False,
    5946        "occurrence": False,
    5947        "parameters": False,
    5948        "group": False,
    5949    }

arg_types = {'this': True, 'expression': True, 'position': False, 'occurrence': False, 'parameters': False, 'group': False}
key = 'regexpextract'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RegexpReplace(Func): View Source

    5952class RegexpReplace(Func):
    5953    arg_types = {
    5954        "this": True,
    5955        "expression": True,
    5956        "replacement": False,
    5957        "position": False,
    5958        "occurrence": False,
    5959        "modifiers": False,
    5960    }

arg_types = {'this': True, 'expression': True, 'replacement': False, 'position': False, 'occurrence': False, 'modifiers': False}
key = 'regexpreplace'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RegexpLike(Binary, Func): View Source

    5963class RegexpLike(Binary, Func):
    5964    arg_types = {"this": True, "expression": True, "flag": False}

arg_types = {'this': True, 'expression': True, 'flag': False}
key = 'regexplike'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RegexpILike(Binary, Func): View Source

    5967class RegexpILike(Binary, Func):
    5968    arg_types = {"this": True, "expression": True, "flag": False}

arg_types = {'this': True, 'expression': True, 'flag': False}
key = 'regexpilike'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RegexpSplit(Func): View Source

    5973class RegexpSplit(Func):
    5974    arg_types = {"this": True, "expression": True, "limit": False}

arg_types = {'this': True, 'expression': True, 'limit': False}
key = 'regexpsplit'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Repeat(Func): View Source

    5977class Repeat(Func):
    5978    arg_types = {"this": True, "times": True}

arg_types = {'this': True, 'times': True}
key = 'repeat'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Round(Func): View Source

    5983class Round(Func):
    5984    arg_types = {"this": True, "decimals": False, "truncate": False}

arg_types = {'this': True, 'decimals': False, 'truncate': False}
key = 'round'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class RowNumber(Func): View Source

    5987class RowNumber(Func):
    5988    arg_types: t.Dict[str, t.Any] = {}

arg_types: Dict[str, Any] = {}
key = 'rownumber'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class SafeDivide(Func): View Source

    5991class SafeDivide(Func):
    5992    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'safedivide'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class SHA(Func): View Source

    5995class SHA(Func):
    5996    _sql_names = ["SHA", "SHA1"]

key = 'sha'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class SHA2(Func): View Source

    5999class SHA2(Func):
    6000    _sql_names = ["SHA2"]
    6001    arg_types = {"this": True, "length": False}

arg_types = {'this': True, 'length': False}
key = 'sha2'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Sign(Func): View Source

    6004class Sign(Func):
    6005    _sql_names = ["SIGN", "SIGNUM"]

key = 'sign'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class SortArray(Func): View Source

    6008class SortArray(Func):
    6009    arg_types = {"this": True, "asc": False}

arg_types = {'this': True, 'asc': False}
key = 'sortarray'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Split(Func): View Source

    6012class Split(Func):
    6013    arg_types = {"this": True, "expression": True, "limit": False}

arg_types = {'this': True, 'expression': True, 'limit': False}
key = 'split'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Substring(Func): View Source

    6018class Substring(Func):
    6019    arg_types = {"this": True, "start": False, "length": False}

arg_types = {'this': True, 'start': False, 'length': False}
key = 'substring'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StandardHash(Func): View Source

    6022class StandardHash(Func):
    6023    arg_types = {"this": True, "expression": False}

arg_types = {'this': True, 'expression': False}
key = 'standardhash'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StartsWith(Func): View Source

    6026class StartsWith(Func):
    6027    _sql_names = ["STARTS_WITH", "STARTSWITH"]
    6028    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'startswith'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StrPosition(Func): View Source

    6031class StrPosition(Func):
    6032    arg_types = {
    6033        "this": True,
    6034        "substr": True,
    6035        "position": False,
    6036        "instance": False,
    6037    }

arg_types = {'this': True, 'substr': True, 'position': False, 'instance': False}
key = 'strposition'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StrToDate(Func): View Source

    6040class StrToDate(Func):
    6041    arg_types = {"this": True, "format": False, "safe": False}

arg_types = {'this': True, 'format': False, 'safe': False}
key = 'strtodate'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StrToTime(Func): View Source

    6044class StrToTime(Func):
    6045    arg_types = {"this": True, "format": True, "zone": False, "safe": False}

arg_types = {'this': True, 'format': True, 'zone': False, 'safe': False}
key = 'strtotime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StrToUnix(Func): View Source

    6050class StrToUnix(Func):
    6051    arg_types = {"this": False, "format": False}

arg_types = {'this': False, 'format': False}
key = 'strtounix'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StrToMap(Func): View Source

    6056class StrToMap(Func):
    6057    arg_types = {
    6058        "this": True,
    6059        "pair_delim": False,
    6060        "key_value_delim": False,
    6061        "duplicate_resolution_callback": False,
    6062    }

arg_types = {'this': True, 'pair_delim': False, 'key_value_delim': False, 'duplicate_resolution_callback': False}
key = 'strtomap'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class NumberToStr(Func): View Source

    6065class NumberToStr(Func):
    6066    arg_types = {"this": True, "format": True, "culture": False}

arg_types = {'this': True, 'format': True, 'culture': False}
key = 'numbertostr'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class FromBase(Func): View Source

    6069class FromBase(Func):
    6070    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'frombase'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Struct(Func): View Source

    6073class Struct(Func):
    6074    arg_types = {"expressions": False}
    6075    is_var_len_args = True

arg_types = {'expressions': False}
is_var_len_args = True
key = 'struct'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StructExtract(Func): View Source

    6078class StructExtract(Func):
    6079    arg_types = {"this": True, "expression": True}

arg_types = {'this': True, 'expression': True}
key = 'structextract'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Stuff(Func): View Source

    6084class Stuff(Func):
    6085    _sql_names = ["STUFF", "INSERT"]
    6086    arg_types = {"this": True, "start": True, "length": True, "expression": True}

arg_types = {'this': True, 'start': True, 'length': True, 'expression': True}
key = 'stuff'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Sum(AggFunc): View Source

    6089class Sum(AggFunc):
    6090    pass

key = 'sum'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Sqrt(Func): View Source

    6093class Sqrt(Func):
    6094    pass

key = 'sqrt'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Stddev(AggFunc): View Source

    6097class Stddev(AggFunc):
    6098    _sql_names = ["STDDEV", "STDEV"]

key = 'stddev'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StddevPop(AggFunc): View Source

    6101class StddevPop(AggFunc):
    6102    pass

key = 'stddevpop'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class StddevSamp(AggFunc): View Source

    6105class StddevSamp(AggFunc):
    6106    pass

key = 'stddevsamp'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Time(Func): View Source

    6110class Time(Func):
    6111    arg_types = {"this": False, "zone": False}

arg_types = {'this': False, 'zone': False}
key = 'time'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeToStr(Func): View Source

    6114class TimeToStr(Func):
    6115    arg_types = {"this": True, "format": True, "culture": False, "zone": False}

arg_types = {'this': True, 'format': True, 'culture': False, 'zone': False}
key = 'timetostr'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeToTimeStr(Func): View Source

    6118class TimeToTimeStr(Func):
    6119    pass

key = 'timetotimestr'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeToUnix(Func): View Source

    6122class TimeToUnix(Func):
    6123    pass

key = 'timetounix'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeStrToDate(Func): View Source

    6126class TimeStrToDate(Func):
    6127    pass

key = 'timestrtodate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeStrToTime(Func): View Source

    6130class TimeStrToTime(Func):
    6131    arg_types = {"this": True, "zone": False}

arg_types = {'this': True, 'zone': False}
key = 'timestrtotime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimeStrToUnix(Func): View Source

    6134class TimeStrToUnix(Func):
    6135    pass

key = 'timestrtounix'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Trim(Func): View Source

    6138class Trim(Func):
    6139    arg_types = {
    6140        "this": True,
    6141        "expression": False,
    6142        "position": False,
    6143        "collation": False,
    6144    }

arg_types = {'this': True, 'expression': False, 'position': False, 'collation': False}
key = 'trim'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TsOrDsAdd(Func, TimeUnit): View Source

    6147class TsOrDsAdd(Func, TimeUnit):
    6148    # return_type is used to correctly cast the arguments of this expression when transpiling it
    6149    arg_types = {"this": True, "expression": True, "unit": False, "return_type": False}
    6150
    6151    @property
    6152    def return_type(self) -> DataType:
    6153        return DataType.build(self.args.get("return_type") or DataType.Type.DATE)

arg_types = {'this': True, 'expression': True, 'unit': False, 'return_type': False}
return_type: DataType View Source

    6151    @property
    6152    def return_type(self) -> DataType:
    6153        return DataType.build(self.args.get("return_type") or DataType.Type.DATE)

key = 'tsordsadd'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TsOrDsDiff(Func, TimeUnit): View Source

    6156class TsOrDsDiff(Func, TimeUnit):
    6157    arg_types = {"this": True, "expression": True, "unit": False}

arg_types = {'this': True, 'expression': True, 'unit': False}
key = 'tsordsdiff'

##### Inherited Members

TimeUnit
  TimeUnit
  UNABBREVIATED_UNIT_NAME
  VAR_LIKE
  unit
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings
Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc

class TsOrDsToDateStr(Func): View Source

    6160class TsOrDsToDateStr(Func):
    6161    pass

key = 'tsordstodatestr'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TsOrDsToDate(Func): View Source

    6164class TsOrDsToDate(Func):
    6165    arg_types = {"this": True, "format": False, "safe": False}

arg_types = {'this': True, 'format': False, 'safe': False}
key = 'tsordstodate'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TsOrDsToTime(Func): View Source

    6168class TsOrDsToTime(Func):
    6169    pass

key = 'tsordstotime'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TsOrDsToTimestamp(Func): View Source

    6172class TsOrDsToTimestamp(Func):
    6173    pass

key = 'tsordstotimestamp'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TsOrDiToDi(Func): View Source

    6176class TsOrDiToDi(Func):
    6177    pass

key = 'tsorditodi'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Unhex(Func): View Source

    6180class Unhex(Func):
    6181    pass

key = 'unhex'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class UnixDate(Func): View Source

    6185class UnixDate(Func):
    6186    pass

key = 'unixdate'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class UnixToStr(Func): View Source

    6189class UnixToStr(Func):
    6190    arg_types = {"this": True, "format": False}

arg_types = {'this': True, 'format': False}
key = 'unixtostr'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class UnixToTime(Func): View Source

    6195class UnixToTime(Func):
    6196    arg_types = {
    6197        "this": True,
    6198        "scale": False,
    6199        "zone": False,
    6200        "hours": False,
    6201        "minutes": False,
    6202        "format": False,
    6203    }
    6204
    6205    SECONDS = Literal.number(0)
    6206    DECIS = Literal.number(1)
    6207    CENTIS = Literal.number(2)
    6208    MILLIS = Literal.number(3)
    6209    DECIMILLIS = Literal.number(4)
    6210    CENTIMILLIS = Literal.number(5)
    6211    MICROS = Literal.number(6)
    6212    DECIMICROS = Literal.number(7)
    6213    CENTIMICROS = Literal.number(8)
    6214    NANOS = Literal.number(9)

arg_types = {'this': True, 'scale': False, 'zone': False, 'hours': False, 'minutes': False, 'format': False}
SECONDS = Literal(this=0, is_string=False)
DECIS = Literal(this=1, is_string=False)
CENTIS = Literal(this=2, is_string=False)
MILLIS = Literal(this=3, is_string=False)
DECIMILLIS = Literal(this=4, is_string=False)
CENTIMILLIS = Literal(this=5, is_string=False)
MICROS = Literal(this=6, is_string=False)
DECIMICROS = Literal(this=7, is_string=False)
CENTIMICROS = Literal(this=8, is_string=False)
NANOS = Literal(this=9, is_string=False)
key = 'unixtotime'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class UnixToTimeStr(Func): View Source

    6217class UnixToTimeStr(Func):
    6218    pass

key = 'unixtotimestr'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class TimestampFromParts(Func): View Source

    6221class TimestampFromParts(Func):
    6222    _sql_names = ["TIMESTAMP_FROM_PARTS", "TIMESTAMPFROMPARTS"]
    6223    arg_types = {
    6224        "year": True,
    6225        "month": True,
    6226        "day": True,
    6227        "hour": True,
    6228        "min": True,
    6229        "sec": True,
    6230        "nano": False,
    6231        "zone": False,
    6232        "milli": False,
    6233    }

arg_types = {'year': True, 'month': True, 'day': True, 'hour': True, 'min': True, 'sec': True, 'nano': False, 'zone': False, 'milli': False}
key = 'timestampfromparts'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Upper(Func): View Source

    6236class Upper(Func):
    6237    _sql_names = ["UPPER", "UCASE"]

key = 'upper'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Corr(Binary, AggFunc): View Source

    6240class Corr(Binary, AggFunc):
    6241    pass

key = 'corr'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Variance(AggFunc): View Source

    6244class Variance(AggFunc):
    6245    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]

key = 'variance'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class VariancePop(AggFunc): View Source

    6248class VariancePop(AggFunc):
    6249    _sql_names = ["VARIANCE_POP", "VAR_POP"]

key = 'variancepop'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
  and_
  or_
  not_
  as_
  isin
  between
  is_
  like
  ilike
  eq
  neq
  rlike
  div
  asc
  desc
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CovarSamp(Binary, AggFunc): View Source

    6252class CovarSamp(Binary, AggFunc):
    6253    pass

key = 'covarsamp'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
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  walk
  dfs
  bfs
  unnest
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Binary
  arg_types
  left
  right
Func
  is_var_len_args
  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class CovarPop(Binary, AggFunc): View Source

    6256class CovarPop(Binary, AggFunc):
    6257    pass

key = 'covarpop'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  pop
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Binary
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Func
  is_var_len_args
  from_arg_list
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  sql_name
  default_parser_mappings

class Week(Func): View Source

    6260class Week(Func):
    6261    arg_types = {"this": True, "mode": False}

arg_types = {'this': True, 'mode': False}
key = 'week'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
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  sql
  transform
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  pop
  assert_is
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Func
  is_var_len_args
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  sql_name
  default_parser_mappings

class XMLTable(Func): View Source

    6264class XMLTable(Func):
    6265    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}

arg_types = {'this': True, 'passing': False, 'columns': False, 'by_ref': False}
key = 'xmltable'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
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Func
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  from_arg_list
  sql_names
  sql_name
  default_parser_mappings

class Year(Func): View Source

    6268class Year(Func):
    6269    pass

key = 'year'

##### Inherited Members

Expression
  Expression
  arg_types
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  unnest_operands
  flatten
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  transform
  replace
  pop
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  load
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Func
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  sql_names
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class Use(Expression): View Source

    6272class Use(Expression):
    6273    arg_types = {"this": True, "kind": False}

arg_types = {'this': True, 'kind': False}
key = 'use'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
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  unnest
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class Merge(Expression): View Source

    6276class Merge(Expression):
    6277    arg_types = {
    6278        "this": True,
    6279        "using": True,
    6280        "on": True,
    6281        "expressions": True,
    6282        "with": False,
    6283    }

arg_types = {'this': True, 'using': True, 'on': True, 'expressions': True, 'with': False}
key = 'merge'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
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  unnest_operands
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class When(Func): View Source

    6286class When(Func):
    6287    arg_types = {"matched": True, "source": False, "condition": False, "then": True}

arg_types = {'matched': True, 'source': False, 'condition': False, 'then': True}
key = 'when'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
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  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
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  pop
  assert_is
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Func
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  sql_names
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  default_parser_mappings

class NextValueFor(Func): View Source

    6292class NextValueFor(Func):
    6293    arg_types = {"this": True, "order": False}

arg_types = {'this': True, 'order': False}
key = 'nextvaluefor'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
  assert_is
  error_messages
  dump
  load
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Func
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  default_parser_mappings

class Semicolon(Expression): View Source

    6298class Semicolon(Expression):
    6299    arg_types = {}

arg_types = {}
key = 'semicolon'

##### Inherited Members

Expression
  Expression
  args
  parent
  arg_key
  index
  comments
  hashable_args
  this
  expression
  expressions
  text
  is_string
  is_number
  to_py
  is_int
  is_star
  alias
  alias_column_names
  name
  alias_or_name
  output_name
  type
  is_type
  is_leaf
  meta
  copy
  add_comments
  pop_comments
  append
  set
  depth
  iter_expressions
  find
  find_all
  find_ancestor
  parent_select
  same_parent
  root
  walk
  dfs
  bfs
  unnest
  unalias
  unnest_operands
  flatten
  to_s
  sql
  transform
  replace
  pop
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ALL_FUNCTIONS = [<class 'Abs'>, <class 'AddMonths'>, <class 'AnonymousAggFunc'>, <class 'AnyValue'>, <class 'ApproxDistinct'>, <class 'ApproxQuantile'>, <class 'ApproxTopK'>, <class 'ArgMax'>, <class 'ArgMin'>, <class 'Array'>, <class 'ArrayAgg'>, <class 'ArrayAll'>, <class 'ArrayAny'>, <class 'ArrayConcat'>, <class 'ArrayConstructCompact'>, <class 'ArrayContains'>, <class 'ArrayContainsAll'>, <class 'ArrayFilter'>, <class 'ArrayOverlaps'>, <class 'ArraySize'>, <class 'ArraySort'>, <class 'ArraySum'>, <class 'ArrayToString'>, <class 'ArrayUnionAgg'>, <class 'ArrayUniqueAgg'>, <class 'Avg'>, <class 'Case'>, <class 'Cast'>, <class 'CastToStrType'>, <class 'Cbrt'>, <class 'Ceil'>, <class 'Chr'>, <class 'Coalesce'>, <class 'Collate'>, <class 'CombinedAggFunc'>, <class 'CombinedParameterizedAgg'>, <class 'Concat'>, <class 'ConcatWs'>, <class 'ConnectByRoot'>, <class 'Convert'>, <class 'ConvertTimezone'>, <class 'Corr'>, <class 'Count'>, <class 'CountIf'>, <class 'CovarPop'>, <class 'CovarSamp'>, <class 'CurrentDate'>, <class 'CurrentDatetime'>, <class 'CurrentTime'>, <class 'CurrentTimestamp'>, <class 'CurrentUser'>, <class 'Date'>, <class 'DateAdd'>, <class 'DateDiff'>, <class 'DateFromParts'>, <class 'DateStrToDate'>, <class 'DateSub'>, <class 'DateToDateStr'>, <class 'DateToDi'>, <class 'DateTrunc'>, <class 'Datetime'>, <class 'DatetimeAdd'>, <class 'DatetimeDiff'>, <class 'DatetimeSub'>, <class 'DatetimeTrunc'>, <class 'Day'>, <class 'DayOfMonth'>, <class 'DayOfWeek'>, <class 'DayOfWeekIso'>, <class 'DayOfYear'>, <class 'Decode'>, <class 'DiToDate'>, <class 'Encode'>, <class 'Exp'>, <class 'Explode'>, <class 'ExplodeOuter'>, <class 'ExplodingGenerateSeries'>, <class 'Extract'>, <class 'First'>, <class 'FirstValue'>, <class 'Flatten'>, <class 'Floor'>, <class 'FromBase'>, <class 'FromBase64'>, <class 'FromISO8601Timestamp'>, <class 'GapFill'>, <class 'GenerateDateArray'>, <class 'GenerateSeries'>, <class 'GenerateTimestampArray'>, <class 'Greatest'>, <class 'GroupConcat'>, <class 'Hex'>, <class 'Hll'>, <class 'If'>, <class 'Initcap'>, <class 'Inline'>, <class 'IsInf'>, <class 'IsNan'>, <class 'JSONArray'>, <class 'JSONArrayAgg'>, <class 'JSONArrayContains'>, <class 'JSONBContains'>, <class 'JSONBExtract'>, <class 'JSONBExtractScalar'>, <class 'JSONExists'>, <class 'JSONExtract'>, <class 'JSONExtractScalar'>, <class 'JSONFormat'>, <class 'JSONObject'>, <class 'JSONObjectAgg'>, <class 'JSONTable'>, <class 'Lag'>, <class 'Last'>, <class 'LastDay'>, <class 'LastValue'>, <class 'Lead'>, <class 'Least'>, <class 'Left'>, <class 'Length'>, <class 'Levenshtein'>, <class 'List'>, <class 'Ln'>, <class 'Log'>, <class 'LogicalAnd'>, <class 'LogicalOr'>, <class 'Lower'>, <class 'LowerHex'>, <class 'MD5'>, <class 'MD5Digest'>, <class 'Map'>, <class 'MapFromEntries'>, <class 'MatchAgainst'>, <class 'Max'>, <class 'Min'>, <class 'Month'>, <class 'MonthsBetween'>, <class 'NextValueFor'>, <class 'Normalize'>, <class 'NthValue'>, <class 'Nullif'>, <class 'NumberToStr'>, <class 'Nvl2'>, <class 'ObjectInsert'>, <class 'OpenJSON'>, <class 'Pad'>, <class 'ParameterizedAgg'>, <class 'ParseJSON'>, <class 'PercentileCont'>, <class 'PercentileDisc'>, <class 'Posexplode'>, <class 'PosexplodeOuter'>, <class 'Pow'>, <class 'Predict'>, <class 'Quantile'>, <class 'Quarter'>, <class 'Rand'>, <class 'Randn'>, <class 'RangeN'>, <class 'ReadCSV'>, <class 'Reduce'>, <class 'RegexpExtract'>, <class 'RegexpILike'>, <class 'RegexpLike'>, <class 'RegexpReplace'>, <class 'RegexpSplit'>, <class 'Repeat'>, <class 'Right'>, <class 'Round'>, <class 'RowNumber'>, <class 'SHA'>, <class 'SHA2'>, <class 'SafeDivide'>, <class 'Sign'>, <class 'SortArray'>, <class 'Split'>, <class 'Sqrt'>, <class 'StandardHash'>, <class 'StarMap'>, <class 'StartsWith'>, <class 'Stddev'>, <class 'StddevPop'>, <class 'StddevSamp'>, <class 'StrPosition'>, <class 'StrToDate'>, <class 'StrToMap'>, <class 'StrToTime'>, <class 'StrToUnix'>, <class 'StringToArray'>, <class 'Struct'>, <class 'StructExtract'>, <class 'Stuff'>, <class 'Substring'>, <class 'Sum'>, <class 'Time'>, <class 'TimeAdd'>, <class 'TimeDiff'>, <class 'TimeFromParts'>, <class 'TimeStrToDate'>, <class 'TimeStrToTime'>, <class 'TimeStrToUnix'>, <class 'TimeSub'>, <class 'TimeToStr'>, <class 'TimeToTimeStr'>, <class 'TimeToUnix'>, <class 'TimeTrunc'>, <class 'Timestamp'>, <class 'TimestampAdd'>, <class 'TimestampDiff'>, <class 'TimestampFromParts'>, <class 'TimestampSub'>, <class 'TimestampTrunc'>, <class 'ToArray'>, <class 'ToBase64'>, <class 'ToChar'>, <class 'ToDays'>, <class 'ToMap'>, <class 'ToNumber'>, <class 'Transform'>, <class 'Trim'>, <class 'Try'>, <class 'TryCast'>, <class 'TsOrDiToDi'>, <class 'TsOrDsAdd'>, <class 'TsOrDsDiff'>, <class 'TsOrDsToDate'>, <class 'TsOrDsToDateStr'>, <class 'TsOrDsToTime'>, <class 'TsOrDsToTimestamp'>, <class 'Unhex'>, <class 'UnixDate'>, <class 'UnixToStr'>, <class 'UnixToTime'>, <class 'UnixToTimeStr'>, <class 'Unnest'>, <class 'Upper'>, <class 'VarMap'>, <class 'Variance'>, <class 'VariancePop'>, <class 'Week'>, <class 'WeekOfYear'>, <class 'When'>, <class 'XMLTable'>, <class 'Xor'>, <class 'Year'>]
FUNCTION_BY_NAME = {'ABS': <class 'Abs'>, 'ADD_MONTHS': <class 'AddMonths'>, 'ANONYMOUS_AGG_FUNC': <class 'AnonymousAggFunc'>, 'ANY_VALUE': <class 'AnyValue'>, 'APPROX_DISTINCT': <class 'ApproxDistinct'>, 'APPROX_COUNT_DISTINCT': <class 'ApproxDistinct'>, 'APPROX_QUANTILE': <class 'ApproxQuantile'>, 'APPROX_TOP_K': <class 'ApproxTopK'>, 'ARG_MAX': <class 'ArgMax'>, 'ARGMAX': <class 'ArgMax'>, 'MAX_BY': <class 'ArgMax'>, 'ARG_MIN': <class 'ArgMin'>, 'ARGMIN': <class 'ArgMin'>, 'MIN_BY': <class 'ArgMin'>, 'ARRAY': <class 'Array'>, 'ARRAY_AGG': <class 'ArrayAgg'>, 'ARRAY_ALL': <class 'ArrayAll'>, 'ARRAY_ANY': <class 'ArrayAny'>, 'ARRAY_CONCAT': <class 'ArrayConcat'>, 'ARRAY_CAT': <class 'ArrayConcat'>, 'ARRAY_CONSTRUCT_COMPACT': <class 'ArrayConstructCompact'>, 'ARRAY_CONTAINS': <class 'ArrayContains'>, 'ARRAY_HAS': <class 'ArrayContains'>, 'ARRAY_CONTAINS_ALL': <class 'ArrayContainsAll'>, 'ARRAY_HAS_ALL': <class 'ArrayContainsAll'>, 'FILTER': <class 'ArrayFilter'>, 'ARRAY_FILTER': <class 'ArrayFilter'>, 'ARRAY_OVERLAPS': <class 'ArrayOverlaps'>, 'ARRAY_SIZE': <class 'ArraySize'>, 'ARRAY_LENGTH': <class 'ArraySize'>, 'ARRAY_SORT': <class 'ArraySort'>, 'ARRAY_SUM': <class 'ArraySum'>, 'ARRAY_TO_STRING': <class 'ArrayToString'>, 'ARRAY_JOIN': <class 'ArrayToString'>, 'ARRAY_UNION_AGG': <class 'ArrayUnionAgg'>, 'ARRAY_UNIQUE_AGG': <class 'ArrayUniqueAgg'>, 'AVG': <class 'Avg'>, 'CASE': <class 'Case'>, 'CAST': <class 'Cast'>, 'CAST_TO_STR_TYPE': <class 'CastToStrType'>, 'CBRT': <class 'Cbrt'>, 'CEIL': <class 'Ceil'>, 'CEILING': <class 'Ceil'>, 'CHR': <class 'Chr'>, 'CHAR': <class 'Chr'>, 'COALESCE': <class 'Coalesce'>, 'IFNULL': <class 'Coalesce'>, 'NVL': <class 'Coalesce'>, 'COLLATE': <class 'Collate'>, 'COMBINED_AGG_FUNC': <class 'CombinedAggFunc'>, 'COMBINED_PARAMETERIZED_AGG': <class 'CombinedParameterizedAgg'>, 'CONCAT': <class 'Concat'>, 'CONCAT_WS': <class 'ConcatWs'>, 'CONNECT_BY_ROOT': <class 'ConnectByRoot'>, 'CONVERT': <class 'Convert'>, 'CONVERT_TIMEZONE': <class 'ConvertTimezone'>, 'CORR': <class 'Corr'>, 'COUNT': <class 'Count'>, 'COUNT_IF': <class 'CountIf'>, 'COUNTIF': <class 'CountIf'>, 'COVAR_POP': <class 'CovarPop'>, 'COVAR_SAMP': <class 'CovarSamp'>, 'CURRENT_DATE': <class 'CurrentDate'>, 'CURRENT_DATETIME': <class 'CurrentDatetime'>, 'CURRENT_TIME': <class 'CurrentTime'>, 'CURRENT_TIMESTAMP': <class 'CurrentTimestamp'>, 'CURRENT_USER': <class 'CurrentUser'>, 'DATE': <class 'Date'>, 'DATE_ADD': <class 'DateAdd'>, 'DATEDIFF': <class 'DateDiff'>, 'DATE_DIFF': <class 'DateDiff'>, 'DATE_FROM_PARTS': <class 'DateFromParts'>, 'DATEFROMPARTS': <class 'DateFromParts'>, 'DATE_STR_TO_DATE': <class 'DateStrToDate'>, 'DATE_SUB': <class 'DateSub'>, 'DATE_TO_DATE_STR': <class 'DateToDateStr'>, 'DATE_TO_DI': <class 'DateToDi'>, 'DATE_TRUNC': <class 'DateTrunc'>, 'DATETIME': <class 'Datetime'>, 'DATETIME_ADD': <class 'DatetimeAdd'>, 'DATETIME_DIFF': <class 'DatetimeDiff'>, 'DATETIME_SUB': <class 'DatetimeSub'>, 'DATETIME_TRUNC': <class 'DatetimeTrunc'>, 'DAY': <class 'Day'>, 'DAY_OF_MONTH': <class 'DayOfMonth'>, 'DAYOFMONTH': <class 'DayOfMonth'>, 'DAY_OF_WEEK': <class 'DayOfWeek'>, 'DAYOFWEEK': <class 'DayOfWeek'>, 'DAYOFWEEK_ISO': <class 'DayOfWeekIso'>, 'ISODOW': <class 'DayOfWeekIso'>, 'DAY_OF_YEAR': <class 'DayOfYear'>, 'DAYOFYEAR': <class 'DayOfYear'>, 'DECODE': <class 'Decode'>, 'DI_TO_DATE': <class 'DiToDate'>, 'ENCODE': <class 'Encode'>, 'EXP': <class 'Exp'>, 'EXPLODE': <class 'Explode'>, 'EXPLODE_OUTER': <class 'ExplodeOuter'>, 'EXPLODING_GENERATE_SERIES': <class 'ExplodingGenerateSeries'>, 'EXTRACT': <class 'Extract'>, 'FIRST': <class 'First'>, 'FIRST_VALUE': <class 'FirstValue'>, 'FLATTEN': <class 'Flatten'>, 'FLOOR': <class 'Floor'>, 'FROM_BASE': <class 'FromBase'>, 'FROM_BASE64': <class 'FromBase64'>, 'FROM_ISO8601_TIMESTAMP': <class 'FromISO8601Timestamp'>, 'GAP_FILL': <class 'GapFill'>, 'GENERATE_DATE_ARRAY': <class 'GenerateDateArray'>, 'GENERATE_SERIES': <class 'GenerateSeries'>, 'GENERATE_TIMESTAMP_ARRAY': <class 'GenerateTimestampArray'>, 'GREATEST': <class 'Greatest'>, 'GROUP_CONCAT': <class 'GroupConcat'>, 'HEX': <class 'Hex'>, 'HLL': <class 'Hll'>, 'IF': <class 'If'>, 'IIF': <class 'If'>, 'INITCAP': <class 'Initcap'>, 'INLINE': <class 'Inline'>, 'IS_INF': <class 'IsInf'>, 'ISINF': <class 'IsInf'>, 'IS_NAN': <class 'IsNan'>, 'ISNAN': <class 'IsNan'>, 'J_S_O_N_ARRAY': <class 'JSONArray'>, 'J_S_O_N_ARRAY_AGG': <class 'JSONArrayAgg'>, 'JSON_ARRAY_CONTAINS': <class 'JSONArrayContains'>, 'JSONB_CONTAINS': <class 'JSONBContains'>, 'JSONB_EXTRACT': <class 'JSONBExtract'>, 'JSONB_EXTRACT_SCALAR': <class 'JSONBExtractScalar'>, 'J_S_O_N_EXISTS': <class 'JSONExists'>, 'JSON_EXTRACT': <class 'JSONExtract'>, 'JSON_EXTRACT_SCALAR': <class 'JSONExtractScalar'>, 'JSON_FORMAT': <class 'JSONFormat'>, 'J_S_O_N_OBJECT': <class 'JSONObject'>, 'J_S_O_N_OBJECT_AGG': <class 'JSONObjectAgg'>, 'J_S_O_N_TABLE': <class 'JSONTable'>, 'LAG': <class 'Lag'>, 'LAST': <class 'Last'>, 'LAST_DAY': <class 'LastDay'>, 'LAST_DAY_OF_MONTH': <class 'LastDay'>, 'LAST_VALUE': <class 'LastValue'>, 'LEAD': <class 'Lead'>, 'LEAST': <class 'Least'>, 'LEFT': <class 'Left'>, 'LENGTH': <class 'Length'>, 'LEN': <class 'Length'>, 'LEVENSHTEIN': <class 'Levenshtein'>, 'LIST': <class 'List'>, 'LN': <class 'Ln'>, 'LOG': <class 'Log'>, 'LOGICAL_AND': <class 'LogicalAnd'>, 'BOOL_AND': <class 'LogicalAnd'>, 'BOOLAND_AGG': <class 'LogicalAnd'>, 'LOGICAL_OR': <class 'LogicalOr'>, 'BOOL_OR': <class 'LogicalOr'>, 'BOOLOR_AGG': <class 'LogicalOr'>, 'LOWER': <class 'Lower'>, 'LCASE': <class 'Lower'>, 'LOWER_HEX': <class 'LowerHex'>, 'MD5': <class 'MD5'>, 'MD5_DIGEST': <class 'MD5Digest'>, 'MAP': <class 'Map'>, 'MAP_FROM_ENTRIES': <class 'MapFromEntries'>, 'MATCH_AGAINST': <class 'MatchAgainst'>, 'MAX': <class 'Max'>, 'MIN': <class 'Min'>, 'MONTH': <class 'Month'>, 'MONTHS_BETWEEN': <class 'MonthsBetween'>, 'NEXT_VALUE_FOR': <class 'NextValueFor'>, 'NORMALIZE': <class 'Normalize'>, 'NTH_VALUE': <class 'NthValue'>, 'NULLIF': <class 'Nullif'>, 'NUMBER_TO_STR': <class 'NumberToStr'>, 'NVL2': <class 'Nvl2'>, 'OBJECT_INSERT': <class 'ObjectInsert'>, 'OPEN_J_S_O_N': <class 'OpenJSON'>, 'PAD': <class 'Pad'>, 'PARAMETERIZED_AGG': <class 'ParameterizedAgg'>, 'PARSE_JSON': <class 'ParseJSON'>, 'JSON_PARSE': <class 'ParseJSON'>, 'PERCENTILE_CONT': <class 'PercentileCont'>, 'PERCENTILE_DISC': <class 'PercentileDisc'>, 'POSEXPLODE': <class 'Posexplode'>, 'POSEXPLODE_OUTER': <class 'PosexplodeOuter'>, 'POWER': <class 'Pow'>, 'POW': <class 'Pow'>, 'PREDICT': <class 'Predict'>, 'QUANTILE': <class 'Quantile'>, 'QUARTER': <class 'Quarter'>, 'RAND': <class 'Rand'>, 'RANDOM': <class 'Rand'>, 'RANDN': <class 'Randn'>, 'RANGE_N': <class 'RangeN'>, 'READ_CSV': <class 'ReadCSV'>, 'REDUCE': <class 'Reduce'>, 'REGEXP_EXTRACT': <class 'RegexpExtract'>, 'REGEXP_I_LIKE': <class 'RegexpILike'>, 'REGEXP_LIKE': <class 'RegexpLike'>, 'REGEXP_REPLACE': <class 'RegexpReplace'>, 'REGEXP_SPLIT': <class 'RegexpSplit'>, 'REPEAT': <class 'Repeat'>, 'RIGHT': <class 'Right'>, 'ROUND': <class 'Round'>, 'ROW_NUMBER': <class 'RowNumber'>, 'SHA': <class 'SHA'>, 'SHA1': <class 'SHA'>, 'SHA2': <class 'SHA2'>, 'SAFE_DIVIDE': <class 'SafeDivide'>, 'SIGN': <class 'Sign'>, 'SIGNUM': <class 'Sign'>, 'SORT_ARRAY': <class 'SortArray'>, 'SPLIT': <class 'Split'>, 'SQRT': <class 'Sqrt'>, 'STANDARD_HASH': <class 'StandardHash'>, 'STAR_MAP': <class 'StarMap'>, 'STARTS_WITH': <class 'StartsWith'>, 'STARTSWITH': <class 'StartsWith'>, 'STDDEV': <class 'Stddev'>, 'STDEV': <class 'Stddev'>, 'STDDEV_POP': <class 'StddevPop'>, 'STDDEV_SAMP': <class 'StddevSamp'>, 'STR_POSITION': <class 'StrPosition'>, 'STR_TO_DATE': <class 'StrToDate'>, 'STR_TO_MAP': <class 'StrToMap'>, 'STR_TO_TIME': <class 'StrToTime'>, 'STR_TO_UNIX': <class 'StrToUnix'>, 'STRING_TO_ARRAY': <class 'StringToArray'>, 'SPLIT_BY_STRING': <class 'StringToArray'>, 'STRUCT': <class 'Struct'>, 'STRUCT_EXTRACT': <class 'StructExtract'>, 'STUFF': <class 'Stuff'>, 'INSERT': <class 'Stuff'>, 'SUBSTRING': <class 'Substring'>, 'SUM': <class 'Sum'>, 'TIME': <class 'Time'>, 'TIME_ADD': <class 'TimeAdd'>, 'TIME_DIFF': <class 'TimeDiff'>, 'TIME_FROM_PARTS': <class 'TimeFromParts'>, 'TIMEFROMPARTS': <class 'TimeFromParts'>, 'TIME_STR_TO_DATE': <class 'TimeStrToDate'>, 'TIME_STR_TO_TIME': <class 'TimeStrToTime'>, 'TIME_STR_TO_UNIX': <class 'TimeStrToUnix'>, 'TIME_SUB': <class 'TimeSub'>, 'TIME_TO_STR': <class 'TimeToStr'>, 'TIME_TO_TIME_STR': <class 'TimeToTimeStr'>, 'TIME_TO_UNIX': <class 'TimeToUnix'>, 'TIME_TRUNC': <class 'TimeTrunc'>, 'TIMESTAMP': <class 'Timestamp'>, 'TIMESTAMP_ADD': <class 'TimestampAdd'>, 'TIMESTAMPDIFF': <class 'TimestampDiff'>, 'TIMESTAMP_DIFF': <class 'TimestampDiff'>, 'TIMESTAMP_FROM_PARTS': <class 'TimestampFromParts'>, 'TIMESTAMPFROMPARTS': <class 'TimestampFromParts'>, 'TIMESTAMP_SUB': <class 'TimestampSub'>, 'TIMESTAMP_TRUNC': <class 'TimestampTrunc'>, 'TO_ARRAY': <class 'ToArray'>, 'TO_BASE64': <class 'ToBase64'>, 'TO_CHAR': <class 'ToChar'>, 'TO_DAYS': <class 'ToDays'>, 'TO_MAP': <class 'ToMap'>, 'TO_NUMBER': <class 'ToNumber'>, 'TRANSFORM': <class 'Transform'>, 'TRIM': <class 'Trim'>, 'TRY': <class 'Try'>, 'TRY_CAST': <class 'TryCast'>, 'TS_OR_DI_TO_DI': <class 'TsOrDiToDi'>, 'TS_OR_DS_ADD': <class 'TsOrDsAdd'>, 'TS_OR_DS_DIFF': <class 'TsOrDsDiff'>, 'TS_OR_DS_TO_DATE': <class 'TsOrDsToDate'>, 'TS_OR_DS_TO_DATE_STR': <class 'TsOrDsToDateStr'>, 'TS_OR_DS_TO_TIME': <class 'TsOrDsToTime'>, 'TS_OR_DS_TO_TIMESTAMP': <class 'TsOrDsToTimestamp'>, 'UNHEX': <class 'Unhex'>, 'UNIX_DATE': <class 'UnixDate'>, 'UNIX_TO_STR': <class 'UnixToStr'>, 'UNIX_TO_TIME': <class 'UnixToTime'>, 'UNIX_TO_TIME_STR': <class 'UnixToTimeStr'>, 'UNNEST': <class 'Unnest'>, 'UPPER': <class 'Upper'>, 'UCASE': <class 'Upper'>, 'VAR_MAP': <class 'VarMap'>, 'VARIANCE': <class 'Variance'>, 'VARIANCE_SAMP': <class 'Variance'>, 'VAR_SAMP': <class 'Variance'>, 'VARIANCE_POP': <class 'VariancePop'>, 'VAR_POP': <class 'VariancePop'>, 'WEEK': <class 'Week'>, 'WEEK_OF_YEAR': <class 'WeekOfYear'>, 'WEEKOFYEAR': <class 'WeekOfYear'>, 'WHEN': <class 'When'>, 'X_M_L_TABLE': <class 'XMLTable'>, 'XOR': <class 'Xor'>, 'YEAR': <class 'Year'>}
JSON_PATH_PARTS = [<class 'JSONPathFilter'>, <class 'JSONPathKey'>, <class 'JSONPathRecursive'>, <class 'JSONPathRoot'>, <class 'JSONPathScript'>, <class 'JSONPathSelector'>, <class 'JSONPathSlice'>, <class 'JSONPathSubscript'>, <class 'JSONPathUnion'>, <class 'JSONPathWildcard'>]
PERCENTILES = (<class 'PercentileCont'>, <class 'PercentileDisc'>)
def maybe_parse( sql_or_expression: Union[str, Expression], *, into: Union[str, Type[Expression], Collection[Union[str, Type[Expression]]], NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, prefix: Optional[str] = None, copy: bool = False, **opts) -> Expression: View Source

    6339def maybe_parse(
    6340    sql_or_expression: ExpOrStr,
    6341    *,
    6342    into: t.Optional[IntoType] = None,
    6343    dialect: DialectType = None,
    6344    prefix: t.Optional[str] = None,
    6345    copy: bool = False,
    6346    **opts,
    6347) -> Expression:
    6348    """Gracefully handle a possible string or expression.
    6349
    6350    Example:
    6351        >>> maybe_parse("1")
    6352        Literal(this=1, is_string=False)
    6353        >>> maybe_parse(to_identifier("x"))
    6354        Identifier(this=x, quoted=False)
    6355
    6356    Args:
    6357        sql_or_expression: the SQL code string or an expression
    6358        into: the SQLGlot Expression to parse into
    6359        dialect: the dialect used to parse the input expressions (in the case that an
    6360            input expression is a SQL string).
    6361        prefix: a string to prefix the sql with before it gets parsed
    6362            (automatically includes a space)
    6363        copy: whether to copy the expression.
    6364        **opts: other options to use to parse the input expressions (again, in the case
    6365            that an input expression is a SQL string).
    6366
    6367    Returns:
    6368        Expression: the parsed or given expression.
    6369    """
    6370    if isinstance(sql_or_expression, Expression):
    6371        if copy:
    6372            return sql_or_expression.copy()
    6373        return sql_or_expression
    6374
    6375    if sql_or_expression is None:
    6376        raise ParseError("SQL cannot be None")
    6377
    6378    import sqlglot
    6379
    6380    sql = str(sql_or_expression)
    6381    if prefix:
    6382        sql = f"{prefix} {sql}"
    6383
    6384    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)

Gracefully handle a possible string or expression.

###### Example:

>     >>> maybe_parse("1")
>     Literal(this=1, is_string=False)
>     >>> maybe_parse(to_identifier("x"))
>     Identifier(this=x, quoted=False)

###### Arguments:

- sql_or_expression: the SQL code string or an expression
- into: the SQLGlot Expression to parse into
- dialect: the dialect used to parse the input expressions (in the case that an input expression is a SQL string).
- prefix: a string to prefix the sql with before it gets parsed (automatically includes a space)
- copy: whether to copy the expression.
- **opts: other options to use to parse the input expressions (again, in the case that an input expression is a SQL string).

###### Returns:

> Expression: the parsed or given expression.

def maybe_copy(instance, copy=True): View Source

    6395def maybe_copy(instance, copy=True):
    6396    return instance.copy() if copy and instance else instance

def union( left: Union[str, Expression], right: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Union: View Source

    6617def union(
    6618    left: ExpOrStr,
    6619    right: ExpOrStr,
    6620    distinct: bool = True,
    6621    dialect: DialectType = None,
    6622    copy: bool = True,
    6623    **opts,
    6624) -> Union:
    6625    """
    6626    Initializes a syntax tree from one UNION expression.
    6627
    6628    Example:
    6629        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6630        'SELECT * FROM foo UNION SELECT * FROM bla'
    6631
    6632    Args:
    6633        left: the SQL code string corresponding to the left-hand side.
    6634            If an `Expression` instance is passed, it will be used as-is.
    6635        right: the SQL code string corresponding to the right-hand side.
    6636            If an `Expression` instance is passed, it will be used as-is.
    6637        distinct: set the DISTINCT flag if and only if this is true.
    6638        dialect: the dialect used to parse the input expression.
    6639        copy: whether to copy the expression.
    6640        opts: other options to use to parse the input expressions.
    6641
    6642    Returns:
    6643        The new Union instance.
    6644    """
    6645    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6646    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6647
    6648    return Union(this=left, expression=right, distinct=distinct)

Initializes a syntax tree from one UNION expression.

###### Example:

>     >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
>     'SELECT * FROM foo UNION SELECT * FROM bla'

###### Arguments:

- left: the SQL code string corresponding to the left-hand side. If an `Expression` instance is passed, it will be used as-is.
- right: the SQL code string corresponding to the right-hand side. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Union instance.

def intersect( left: Union[str, Expression], right: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Intersect: View Source

    6651def intersect(
    6652    left: ExpOrStr,
    6653    right: ExpOrStr,
    6654    distinct: bool = True,
    6655    dialect: DialectType = None,
    6656    copy: bool = True,
    6657    **opts,
    6658) -> Intersect:
    6659    """
    6660    Initializes a syntax tree from one INTERSECT expression.
    6661
    6662    Example:
    6663        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6664        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    6665
    6666    Args:
    6667        left: the SQL code string corresponding to the left-hand side.
    6668            If an `Expression` instance is passed, it will be used as-is.
    6669        right: the SQL code string corresponding to the right-hand side.
    6670            If an `Expression` instance is passed, it will be used as-is.
    6671        distinct: set the DISTINCT flag if and only if this is true.
    6672        dialect: the dialect used to parse the input expression.
    6673        copy: whether to copy the expression.
    6674        opts: other options to use to parse the input expressions.
    6675
    6676    Returns:
    6677        The new Intersect instance.
    6678    """
    6679    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6680    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6681
    6682    return Intersect(this=left, expression=right, distinct=distinct)

Initializes a syntax tree from one INTERSECT expression.

###### Example:

>     >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
>     'SELECT * FROM foo INTERSECT SELECT * FROM bla'

###### Arguments:

- left: the SQL code string corresponding to the left-hand side. If an `Expression` instance is passed, it will be used as-is.
- right: the SQL code string corresponding to the right-hand side. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Intersect instance.

def except_( left: Union[str, Expression], right: Union[str, Expression], distinct: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Except: View Source

    6685def except_(
    6686    left: ExpOrStr,
    6687    right: ExpOrStr,
    6688    distinct: bool = True,
    6689    dialect: DialectType = None,
    6690    copy: bool = True,
    6691    **opts,
    6692) -> Except:
    6693    """
    6694    Initializes a syntax tree from one EXCEPT expression.
    6695
    6696    Example:
    6697        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    6698        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    6699
    6700    Args:
    6701        left: the SQL code string corresponding to the left-hand side.
    6702            If an `Expression` instance is passed, it will be used as-is.
    6703        right: the SQL code string corresponding to the right-hand side.
    6704            If an `Expression` instance is passed, it will be used as-is.
    6705        distinct: set the DISTINCT flag if and only if this is true.
    6706        dialect: the dialect used to parse the input expression.
    6707        copy: whether to copy the expression.
    6708        opts: other options to use to parse the input expressions.
    6709
    6710    Returns:
    6711        The new Except instance.
    6712    """
    6713    left = maybe_parse(sql_or_expression=left, dialect=dialect, copy=copy, **opts)
    6714    right = maybe_parse(sql_or_expression=right, dialect=dialect, copy=copy, **opts)
    6715
    6716    return Except(this=left, expression=right, distinct=distinct)

Initializes a syntax tree from one EXCEPT expression.

###### Example:

>     >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
>     'SELECT * FROM foo EXCEPT SELECT * FROM bla'

###### Arguments:

- left: the SQL code string corresponding to the left-hand side. If an `Expression` instance is passed, it will be used as-is.
- right: the SQL code string corresponding to the right-hand side. If an `Expression` instance is passed, it will be used as-is.
- distinct: set the DISTINCT flag if and only if this is true.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the expression.
- opts: other options to use to parse the input expressions.

###### Returns:

> The new Except instance.

def select( *expressions: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Select: View Source

    6719def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    6720    """
    6721    Initializes a syntax tree from one or multiple SELECT expressions.
    6722
    6723    Example:
    6724        >>> select("col1", "col2").from_("tbl").sql()
    6725        'SELECT col1, col2 FROM tbl'
    6726
    6727    Args:
    6728        *expressions: the SQL code string to parse as the expressions of a
    6729            SELECT statement. If an Expression instance is passed, this is used as-is.
    6730        dialect: the dialect used to parse the input expressions (in the case that an
    6731            input expression is a SQL string).
    6732        **opts: other options to use to parse the input expressions (again, in the case
    6733            that an input expression is a SQL string).
    6734
    6735    Returns:
    6736        Select: the syntax tree for the SELECT statement.
    6737    """
    6738    return Select().select(*expressions, dialect=dialect, **opts)

Initializes a syntax tree from one or multiple SELECT expressions.

###### Example:

>     >>> select("col1", "col2")from_("tbl").sql()
>     'SELECT col1, col2 FROM tbl'

###### Arguments:

- *expressions: the SQL code string to parse as the expressions of a SELECT statement. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expressions (in the case that an input expression is a SQL string).
- **opts: other options to use to parse the input expressions (again, in the case that an input expression is a SQL string).

###### Returns:

> Select: the syntax tree for the SELECT statement.

def from_( expression: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Select: View Source

    6741def from_(expression: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    6742    """
    6743    Initializes a syntax tree from a FROM expression.
    6744
    6745    Example:
    6746        >>> from_("tbl").select("col1", "col2").sql()
    6747        'SELECT col1, col2 FROM tbl'
    6748
    6749    Args:
    6750        *expression: the SQL code string to parse as the FROM expressions of a
    6751            SELECT statement. If an Expression instance is passed, this is used as-is.
    6752        dialect: the dialect used to parse the input expression (in the case that the
    6753            input expression is a SQL string).
    6754        **opts: other options to use to parse the input expressions (again, in the case
    6755            that the input expression is a SQL string).
    6756
    6757    Returns:
    6758        Select: the syntax tree for the SELECT statement.
    6759    """
    6760    return Select().from_(expression, dialect=dialect, **opts)

Initializes a syntax tree from a FROM expression.

###### Example:

>     >>> from_("tbl")select("col1", "col2").sql()
>     'SELECT col1, col2 FROM tbl'

###### Arguments:

- *expression: the SQL code string to parse as the FROM expressions of a SELECT statement. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression (in the case that the input expression is a SQL string).
- **opts: other options to use to parse the input expressions (again, in the case that the input expression is a SQL string).

###### Returns:

> Select: the syntax tree for the SELECT statement.

def update( table: str | Table, properties: dict, where: Union[str, Expression, NoneType] = None, from_: Union[str, Expression, NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Update: View Source

    6763def update(
    6764    table: str | Table,
    6765    properties: dict,
    6766    where: t.Optional[ExpOrStr] = None,
    6767    from_: t.Optional[ExpOrStr] = None,
    6768    dialect: DialectType = None,
    6769    **opts,
    6770) -> Update:
    6771    """
    6772    Creates an update statement.
    6773
    6774    Example:
    6775        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    6776        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    6777
    6778    Args:
    6779        *properties: dictionary of properties to set which are
    6780            auto converted to sql objects eg None -> NULL
    6781        where: sql conditional parsed into a WHERE statement
    6782        from_: sql statement parsed into a FROM statement
    6783        dialect: the dialect used to parse the input expressions.
    6784        **opts: other options to use to parse the input expressions.
    6785
    6786    Returns:
    6787        Update: the syntax tree for the UPDATE statement.
    6788    """
    6789    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    6790    update_expr.set(
    6791        "expressions",
    6792        [
    6793            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    6794            for k, v in properties.items()
    6795        ],
    6796    )
    6797    if from_:
    6798        update_expr.set(
    6799            "from",
    6800            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    6801        )
    6802    if isinstance(where, Condition):
    6803        where = Where(this=where)
    6804    if where:
    6805        update_expr.set(
    6806            "where",
    6807            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    6808        )
    6809    return update_expr

Creates an update statement.

###### Example:

>     >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
>     "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"

###### Arguments:

- *properties: dictionary of properties to set which are auto converted to sql objects eg None -> NULL
- where: sql conditional parsed into a WHERE statement
- from_: sql statement parsed into a FROM statement
- dialect: the dialect used to parse the input expressions.
- **opts: other options to use to parse the input expressions.

###### Returns:

> Update: the syntax tree for the UPDATE statement.

def delete( table: Union[str, Expression], where: Union[str, Expression, NoneType] = None, returning: Union[str, Expression, NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Delete: View Source

    6812def delete(
    6813    table: ExpOrStr,
    6814    where: t.Optional[ExpOrStr] = None,
    6815    returning: t.Optional[ExpOrStr] = None,
    6816    dialect: DialectType = None,
    6817    **opts,
    6818) -> Delete:
    6819    """
    6820    Builds a delete statement.
    6821
    6822    Example:
    6823        >>> delete("my_table", where="id > 1").sql()
    6824        'DELETE FROM my_table WHERE id > 1'
    6825
    6826    Args:
    6827        where: sql conditional parsed into a WHERE statement
    6828        returning: sql conditional parsed into a RETURNING statement
    6829        dialect: the dialect used to parse the input expressions.
    6830        **opts: other options to use to parse the input expressions.
    6831
    6832    Returns:
    6833        Delete: the syntax tree for the DELETE statement.
    6834    """
    6835    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    6836    if where:
    6837        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    6838    if returning:
    6839        delete_expr = t.cast(
    6840            Delete, delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    6841        )
    6842    return delete_expr

Builds a delete statement.

###### Example:

>     >>> delete("my_table", where="id > 1").sql()
>     'DELETE FROM my_table WHERE id > 1'

###### Arguments:

- where: sql conditional parsed into a WHERE statement
- returning: sql conditional parsed into a RETURNING statement
- dialect: the dialect used to parse the input expressions.
- **opts: other options to use to parse the input expressions.

###### Returns:

> Delete: the syntax tree for the DELETE statement.

def insert( expression: Union[str, Expression], into: Union[str, Expression], columns: Optional[Sequence[str | Identifier]] = None, overwrite: Optional[bool] = None, returning: Union[str, Expression, NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Insert: View Source

    6845def insert(
    6846    expression: ExpOrStr,
    6847    into: ExpOrStr,
    6848    columns: t.Optional[t.Sequence[str | Identifier]] = None,
    6849    overwrite: t.Optional[bool] = None,
    6850    returning: t.Optional[ExpOrStr] = None,
    6851    dialect: DialectType = None,
    6852    copy: bool = True,
    6853    **opts,
    6854) -> Insert:
    6855    """
    6856    Builds an INSERT statement.
    6857
    6858    Example:
    6859        >>> insert("VALUES (1, 2, 3)", "tbl").sql()
    6860        'INSERT INTO tbl VALUES (1, 2, 3)'
    6861
    6862    Args:
    6863        expression: the sql string or expression of the INSERT statement
    6864        into: the tbl to insert data to.
    6865        columns: optionally the table's column names.
    6866        overwrite: whether to INSERT OVERWRITE or not.
    6867        returning: sql conditional parsed into a RETURNING statement
    6868        dialect: the dialect used to parse the input expressions.
    6869        copy: whether to copy the expression.
    6870        **opts: other options to use to parse the input expressions.
    6871
    6872    Returns:
    6873        Insert: the syntax tree for the INSERT statement.
    6874    """
    6875    expr = maybe_parse(expression, dialect=dialect, copy=copy, **opts)
    6876    this: Table | Schema = maybe_parse(into, into=Table, dialect=dialect, copy=copy, **opts)
    6877
    6878    if columns:
    6879        this = Schema(this=this, expressions=[to_identifier(c, copy=copy) for c in columns])
    6880
    6881    insert = Insert(this=this, expression=expr, overwrite=overwrite)
    6882
    6883    if returning:
    6884        insert = t.cast(Insert, insert.returning(returning, dialect=dialect, copy=False, **opts))
    6885
    6886    return insert

Builds an INSERT statement.

###### Example:

>     >>> insert("VALUES (1, 2, 3)", "tbl").sql()
>     'INSERT INTO tbl VALUES (1, 2, 3)'

###### Arguments:

- expression: the sql string or expression of the INSERT statement
- into: the tbl to insert data to.
- columns: optionally the table's column names.
- overwrite: whether to INSERT OVERWRITE or not.
- returning: sql conditional parsed into a RETURNING statement
- dialect: the dialect used to parse the input expressions.
- copy: whether to copy the expression.
- **opts: other options to use to parse the input expressions.

###### Returns:

> Insert: the syntax tree for the INSERT statement.

def condition( expression: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    6889def condition(
    6890    expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts
    6891) -> Condition:
    6892    """
    6893    Initialize a logical condition expression.
    6894
    6895    Example:
    6896        >>> condition("x=1").sql()
    6897        'x = 1'
    6898
    6899        This is helpful for composing larger logical syntax trees:
    6900        >>> where = condition("x=1")
    6901        >>> where = where.and_("y=1")
    6902        >>> Select().from_("tbl").select("*").where(where).sql()
    6903        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    6904
    6905    Args:
    6906        *expression: the SQL code string to parse.
    6907            If an Expression instance is passed, this is used as-is.
    6908        dialect: the dialect used to parse the input expression (in the case that the
    6909            input expression is a SQL string).
    6910        copy: Whether to copy `expression` (only applies to expressions).
    6911        **opts: other options to use to parse the input expressions (again, in the case
    6912            that the input expression is a SQL string).
    6913
    6914    Returns:
    6915        The new Condition instance
    6916    """
    6917    return maybe_parse(
    6918        expression,
    6919        into=Condition,
    6920        dialect=dialect,
    6921        copy=copy,
    6922        **opts,
    6923    )

Initialize a logical condition expression.

###### Example:

>     >>> condition("x=1").sql()
>     'x = 1'

> This is helpful for composing larger logical syntax trees:

>     >>> where = condition("x=1")
>     >>> where = where.and_("y=1")
>     >>> Select()from_("tbl")select("*").where(where).sql()
>     'SELECT * FROM tbl WHERE x = 1 AND y = 1'

###### Arguments:

- *expression: the SQL code string to parse. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression (in the case that the input expression is a SQL string).
- copy: Whether to copy `expression` (only applies to expressions).
- **opts: other options to use to parse the input expressions (again, in the case that the input expression is a SQL string).

###### Returns:

> The new Condition instance

def and_( *expressions: Union[str, Expression, NoneType], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    6926def and_(
    6927    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6928) -> Condition:
    6929    """
    6930    Combine multiple conditions with an AND logical operator.
    6931
    6932    Example:
    6933        >>> and_("x=1", and_("y=1", "z=1")).sql()
    6934        'x = 1 AND (y = 1 AND z = 1)'
    6935
    6936    Args:
    6937        *expressions: the SQL code strings to parse.
    6938            If an Expression instance is passed, this is used as-is.
    6939        dialect: the dialect used to parse the input expression.
    6940        copy: whether to copy `expressions` (only applies to Expressions).
    6941        **opts: other options to use to parse the input expressions.
    6942
    6943    Returns:
    6944        The new condition
    6945    """
    6946    return t.cast(Condition, _combine(expressions, And, dialect, copy=copy, **opts))

Combine multiple conditions with an AND logical operator.

###### Example:

>     >>> and_("x=1", and_("y=1", "z=1")).sql()
>     'x = 1 AND (y = 1 AND z = 1)'

###### Arguments:

- *expressions: the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy `expressions` (only applies to Expressions).
- **opts: other options to use to parse the input expressions.

###### Returns:

> The new condition

def or_( *expressions: Union[str, Expression, NoneType], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    6949def or_(
    6950    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6951) -> Condition:
    6952    """
    6953    Combine multiple conditions with an OR logical operator.
    6954
    6955    Example:
    6956        >>> or_("x=1", or_("y=1", "z=1")).sql()
    6957        'x = 1 OR (y = 1 OR z = 1)'
    6958
    6959    Args:
    6960        *expressions: the SQL code strings to parse.
    6961            If an Expression instance is passed, this is used as-is.
    6962        dialect: the dialect used to parse the input expression.
    6963        copy: whether to copy `expressions` (only applies to Expressions).
    6964        **opts: other options to use to parse the input expressions.
    6965
    6966    Returns:
    6967        The new condition
    6968    """
    6969    return t.cast(Condition, _combine(expressions, Or, dialect, copy=copy, **opts))

Combine multiple conditions with an OR logical operator.

###### Example:

>     >>> or_("x=1", or_("y=1", "z=1")).sql()
>     'x = 1 OR (y = 1 OR z = 1)'

###### Arguments:

- *expressions: the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy `expressions` (only applies to Expressions).
- **opts: other options to use to parse the input expressions.

###### Returns:

> The new condition

def xor( *expressions: Union[str, Expression, NoneType], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Condition: View Source

    6972def xor(
    6973    *expressions: t.Optional[ExpOrStr], dialect: DialectType = None, copy: bool = True, **opts
    6974) -> Condition:
    6975    """
    6976    Combine multiple conditions with an XOR logical operator.
    6977
    6978    Example:
    6979        >>> xor("x=1", xor("y=1", "z=1")).sql()
    6980        'x = 1 XOR (y = 1 XOR z = 1)'
    6981
    6982    Args:
    6983        *expressions: the SQL code strings to parse.
    6984            If an Expression instance is passed, this is used as-is.
    6985        dialect: the dialect used to parse the input expression.
    6986        copy: whether to copy `expressions` (only applies to Expressions).
    6987        **opts: other options to use to parse the input expressions.
    6988
    6989    Returns:
    6990        The new condition
    6991    """
    6992    return t.cast(Condition, _combine(expressions, Xor, dialect, copy=copy, **opts))

Combine multiple conditions with an XOR logical operator.

###### Example:

>     >>> xor("x=1", xor("y=1", "z=1")).sql()
>     'x = 1 XOR (y = 1 XOR z = 1)'

###### Arguments:

- *expressions: the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy `expressions` (only applies to Expressions).
- **opts: other options to use to parse the input expressions.

###### Returns:

> The new condition

def not_( expression: Union[str, Expression], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts) -> Not: View Source

    6995def not_(expression: ExpOrStr, dialect: DialectType = None, copy: bool = True, **opts) -> Not:
    6996    """
    6997    Wrap a condition with a NOT operator.
    6998
    6999    Example:
    7000        >>> not_("this_suit='black'").sql()
    7001        "NOT this_suit = 'black'"
    7002
    7003    Args:
    7004        expression: the SQL code string to parse.
    7005            If an Expression instance is passed, this is used as-is.
    7006        dialect: the dialect used to parse the input expression.
    7007        copy: whether to copy the expression or not.
    7008        **opts: other options to use to parse the input expressions.
    7009
    7010    Returns:
    7011        The new condition.
    7012    """
    7013    this = condition(
    7014        expression,
    7015        dialect=dialect,
    7016        copy=copy,
    7017        **opts,
    7018    )
    7019    return Not(this=_wrap(this, Connector))

Wrap a condition with a NOT operator.

###### Example:

>     >>> not_("this_suit='black'").sql()
>     "NOT this_suit = 'black'"

###### Arguments:

- expression: the SQL code string to parse. If an Expression instance is passed, this is used as-is.
- dialect: the dialect used to parse the input expression.
- copy: whether to copy the expression or not.
- **opts: other options to use to parse the input expressions.

###### Returns:

> The new condition.

def paren( expression: Union[str, Expression], copy: bool = True) -> Paren: View Source

    7022def paren(expression: ExpOrStr, copy: bool = True) -> Paren:
    7023    """
    7024    Wrap an expression in parentheses.
    7025
    7026    Example:
    7027        >>> paren("5 + 3").sql()
    7028        '(5 + 3)'
    7029
    7030    Args:
    7031        expression: the SQL code string to parse.
    7032            If an Expression instance is passed, this is used as-is.
    7033        copy: whether to copy the expression or not.
    7034
    7035    Returns:
    7036        The wrapped expression.
    7037    """
    7038    return Paren(this=maybe_parse(expression, copy=copy))

Wrap an expression in parentheses.

###### Example:

>     >>> paren("5 + 3").sql()
>     '(5 + 3)'

###### Arguments:

- expression: the SQL code string to parse. If an Expression instance is passed, this is used as-is.
- copy: whether to copy the expression or not.

###### Returns:

> The wrapped expression.

SAFE_IDENTIFIER_RE: Pattern[str] = re.compile('^[_a-zA-Z][\\w]*$')
def to_identifier(name, quoted=None, copy=True): View Source

    7054def to_identifier(name, quoted=None, copy=True):
    7055    """Builds an identifier.
    7056
    7057    Args:
    7058        name: The name to turn into an identifier.
    7059        quoted: Whether to force quote the identifier.
    7060        copy: Whether to copy name if it's an Identifier.
    7061
    7062    Returns:
    7063        The identifier ast node.
    7064    """
    7065
    7066    if name is None:
    7067        return None
    7068
    7069    if isinstance(name, Identifier):
    7070        identifier = maybe_copy(name, copy)
    7071    elif isinstance(name, str):
    7072        identifier = Identifier(
    7073            this=name,
    7074            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    7075        )
    7076    else:
    7077        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    7078    return identifier

Builds an identifier.

###### Arguments:

- name: The name to turn into an identifier.
- quoted: Whether to force quote the identifier.
- copy: Whether to copy name if it's an Identifier.

###### Returns:

> The identifier ast node.

def parse_identifier( name: str | Identifier, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> Identifier: View Source

    7081def parse_identifier(name: str | Identifier, dialect: DialectType = None) -> Identifier:
    7082    """
    7083    Parses a given string into an identifier.
    7084
    7085    Args:
    7086        name: The name to parse into an identifier.
    7087        dialect: The dialect to parse against.
    7088
    7089    Returns:
    7090        The identifier ast node.
    7091    """
    7092    try:
    7093        expression = maybe_parse(name, dialect=dialect, into=Identifier)
    7094    except (ParseError, TokenError):
    7095        expression = to_identifier(name)
    7096
    7097    return expression

Parses a given string into an identifier.

###### Arguments:

- name: The name to parse into an identifier.
- dialect: The dialect to parse against.

###### Returns:

> The identifier ast node.

INTERVAL_STRING_RE = re.compile('\\s*([0-9]+)\\s*([a-zA-Z]+)\\s*')
def to_interval( interval: str | Literal) -> Interval: View Source

    7103def to_interval(interval: str | Literal) -> Interval:
    7104    """Builds an interval expression from a string like '1 day' or '5 months'."""
    7105    if isinstance(interval, Literal):
    7106        if not interval.is_string:
    7107            raise ValueError("Invalid interval string.")
    7108
    7109        interval = interval.this
    7110
    7111    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    7112
    7113    if not interval_parts:
    7114        raise ValueError("Invalid interval string.")
    7115
    7116    return Interval(
    7117        this=Literal.string(interval_parts.group(1)),
    7118        unit=Var(this=interval_parts.group(2).upper()),
    7119    )

Builds an interval expression from a string like '1 day' or '5 months'.

def to_table( sql_path: str | Table, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **kwargs) -> Table: View Source

    7122def to_table(
    7123    sql_path: str | Table, dialect: DialectType = None, copy: bool = True, **kwargs
    7124) -> Table:
    7125    """
    7126    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    7127    If a table is passed in then that table is returned.
    7128
    7129    Args:
    7130        sql_path: a `[catalog].[schema].[table]` string.
    7131        dialect: the source dialect according to which the table name will be parsed.
    7132        copy: Whether to copy a table if it is passed in.
    7133        kwargs: the kwargs to instantiate the resulting `Table` expression with.
    7134
    7135    Returns:
    7136        A table expression.
    7137    """
    7138    if isinstance(sql_path, Table):
    7139        return maybe_copy(sql_path, copy=copy)
    7140
    7141    table = maybe_parse(sql_path, into=Table, dialect=dialect)
    7142
    7143    for k, v in kwargs.items():
    7144        table.set(k, v)
    7145
    7146    return table

Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. If a table is passed in then that table is returned.

###### Arguments:

- sql_path: a `[catalog].[schema].[table]` string.
- dialect: the source dialect according to which the table name will be parsed.
- copy: Whether to copy a table if it is passed in.
- kwargs: the kwargs to instantiate the resulting `Table` expression with.

###### Returns:

> A table expression.

def to_column( sql_path: str | Column, quoted: Optional[bool] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **kwargs) -> Column: View Source

    7149def to_column(
    7150    sql_path: str | Column,
    7151    quoted: t.Optional[bool] = None,
    7152    dialect: DialectType = None,
    7153    copy: bool = True,
    7154    **kwargs,
    7155) -> Column:
    7156    """
    7157    Create a column from a `[table].[column]` sql path. Table is optional.
    7158    If a column is passed in then that column is returned.
    7159
    7160    Args:
    7161        sql_path: a `[table].[column]` string.
    7162        quoted: Whether or not to force quote identifiers.
    7163        dialect: the source dialect according to which the column name will be parsed.
    7164        copy: Whether to copy a column if it is passed in.
    7165        kwargs: the kwargs to instantiate the resulting `Column` expression with.
    7166
    7167    Returns:
    7168        A column expression.
    7169    """
    7170    if isinstance(sql_path, Column):
    7171        return maybe_copy(sql_path, copy=copy)
    7172
    7173    try:
    7174        col = maybe_parse(sql_path, into=Column, dialect=dialect)
    7175    except ParseError:
    7176        return column(*reversed(sql_path.split(".")), quoted=quoted, **kwargs)
    7177
    7178    for k, v in kwargs.items():
    7179        col.set(k, v)
    7180
    7181    if quoted:
    7182        for i in col.find_all(Identifier):
    7183            i.set("quoted", True)
    7184
    7185    return col

Create a column from a `[table].[column]` sql path. Table is optional. If a column is passed in then that column is returned.

###### Arguments:

- sql_path: a `[table].[column]` string.
- quoted: Whether or not to force quote identifiers.
- dialect: the source dialect according to which the column name will be parsed.
- copy: Whether to copy a column if it is passed in.
- kwargs: the kwargs to instantiate the resulting `Column` expression with.

###### Returns:

> A column expression.

def alias_( expression: Union[str, Expression], alias: Union[Identifier, str, NoneType], table: Union[bool, Sequence[str | Identifier]] = False, quoted: Optional[bool] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True, **opts): View Source

    7188def alias_(
    7189    expression: ExpOrStr,
    7190    alias: t.Optional[str | Identifier],
    7191    table: bool | t.Sequence[str | Identifier] = False,
    7192    quoted: t.Optional[bool] = None,
    7193    dialect: DialectType = None,
    7194    copy: bool = True,
    7195    **opts,
    7196):
    7197    """Create an Alias expression.
    7198
    7199    Example:
    7200        >>> alias_('foo', 'bar').sql()
    7201        'foo AS bar'
    7202
    7203        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    7204        '(SELECT 1, 2) AS bar(a, b)'
    7205
    7206    Args:
    7207        expression: the SQL code strings to parse.
    7208            If an Expression instance is passed, this is used as-is.
    7209        alias: the alias name to use. If the name has
    7210            special characters it is quoted.
    7211        table: Whether to create a table alias, can also be a list of columns.
    7212        quoted: whether to quote the alias
    7213        dialect: the dialect used to parse the input expression.
    7214        copy: Whether to copy the expression.
    7215        **opts: other options to use to parse the input expressions.
    7216
    7217    Returns:
    7218        Alias: the aliased expression
    7219    """
    7220    exp = maybe_parse(expression, dialect=dialect, copy=copy, **opts)
    7221    alias = to_identifier(alias, quoted=quoted)
    7222
    7223    if table:
    7224        table_alias = TableAlias(this=alias)
    7225        exp.set("alias", table_alias)
    7226
    7227        if not isinstance(table, bool):
    7228            for column in table:
    7229                table_alias.append("columns", to_identifier(column, quoted=quoted))
    7230
    7231        return exp
    7232
    7233    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    7234    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    7235    # for the complete Window expression.
    7236    #
    7237    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    7238
    7239    if "alias" in exp.arg_types and not isinstance(exp, Window):
    7240        exp.set("alias", alias)
    7241        return exp
    7242    return Alias(this=exp, alias=alias)

Create an Alias expression.

###### Example:

>     >>> alias_('foo', 'bar').sql()
>     'foo AS bar'

>     >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
>     '(SELECT 1, 2) AS bar(a, b)'

###### Arguments:

- expression: the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
- alias: the alias name to use. If the name has special characters it is quoted.
- table: Whether to create a table alias, can also be a list of columns.
- quoted: whether to quote the alias
- dialect: the dialect used to parse the input expression.
- copy: Whether to copy the expression.
- **opts: other options to use to parse the input expressions.

###### Returns:

> Alias: the aliased expression

def subquery( expression: Union[str, Expression], alias: Union[Identifier, str, NoneType] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Select: View Source

    7245def subquery(
    7246    expression: ExpOrStr,
    7247    alias: t.Optional[Identifier | str] = None,
    7248    dialect: DialectType = None,
    7249    **opts,
    7250) -> Select:
    7251    """
    7252    Build a subquery expression that's selected from.
    7253
    7254    Example:
    7255        >>> subquery('select x from tbl', 'bar').select('x').sql()
    7256        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    7257
    7258    Args:
    7259        expression: the SQL code strings to parse.
    7260            If an Expression instance is passed, this is used as-is.
    7261        alias: the alias name to use.
    7262        dialect: the dialect used to parse the input expression.
    7263        **opts: other options to use to parse the input expressions.
    7264
    7265    Returns:
    7266        A new Select instance with the subquery expression included.
    7267    """
    7268
    7269    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias, **opts)
    7270    return Select().from_(expression, dialect=dialect, **opts)

Build a subquery expression that's selected from.

###### Example:

>     >>> subquery('select x from tbl', 'bar')select('x').sql()
>     'SELECT x FROM (SELECT x FROM tbl) AS bar'

###### Arguments:

- expression: the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
- alias: the alias name to use.
- dialect: the dialect used to parse the input expression.
- **opts: other options to use to parse the input expressions.

###### Returns:

> A new Select instance with the subquery expression included.

def column( col, table=None, db=None, catalog=None, *, fields=None, quoted=None, copy=True): View Source

    7301def column(
    7302    col,
    7303    table=None,
    7304    db=None,
    7305    catalog=None,
    7306    *,
    7307    fields=None,
    7308    quoted=None,
    7309    copy=True,
    7310):
    7311    """
    7312    Build a Column.
    7313
    7314    Args:
    7315        col: Column name.
    7316        table: Table name.
    7317        db: Database name.
    7318        catalog: Catalog name.
    7319        fields: Additional fields using dots.
    7320        quoted: Whether to force quotes on the column's identifiers.
    7321        copy: Whether to copy identifiers if passed in.
    7322
    7323    Returns:
    7324        The new Column instance.
    7325    """
    7326    this = Column(
    7327        this=to_identifier(col, quoted=quoted, copy=copy),
    7328        table=to_identifier(table, quoted=quoted, copy=copy),
    7329        db=to_identifier(db, quoted=quoted, copy=copy),
    7330        catalog=to_identifier(catalog, quoted=quoted, copy=copy),
    7331    )
    7332
    7333    if fields:
    7334        this = Dot.build(
    7335            (this, *(to_identifier(field, quoted=quoted, copy=copy) for field in fields))
    7336        )
    7337    return this

Build a Column.

###### Arguments:

- col: Column name.
- table: Table name.
- db: Database name.
- catalog: Catalog name.
- fields: Additional fields using dots.
- quoted: Whether to force quotes on the column's identifiers.
- copy: Whether to copy identifiers if passed in.

###### Returns:

> The new Column instance.

def cast( expression: Union[str, Expression], to: Union[str, DataType, DataType.Type], copy: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **opts) -> Cast: View Source

    7340def cast(
    7341    expression: ExpOrStr, to: DATA_TYPE, copy: bool = True, dialect: DialectType = None, **opts
    7342) -> Cast:
    7343    """Cast an expression to a data type.
    7344
    7345    Example:
    7346        >>> cast('x + 1', 'int').sql()
    7347        'CAST(x + 1 AS INT)'
    7348
    7349    Args:
    7350        expression: The expression to cast.
    7351        to: The datatype to cast to.
    7352        copy: Whether to copy the supplied expressions.
    7353        dialect: The target dialect. This is used to prevent a re-cast in the following scenario:
    7354            - The expression to be cast is already a exp.Cast expression
    7355            - The existing cast is to a type that is logically equivalent to new type
    7356
    7357            For example, if :expression='CAST(x as DATETIME)' and :to=Type.TIMESTAMP,
    7358            but in the target dialect DATETIME is mapped to TIMESTAMP, then we will NOT return `CAST(x (as DATETIME) as TIMESTAMP)`
    7359            and instead just return the original expression `CAST(x as DATETIME)`.
    7360
    7361            This is to prevent it being output as a double cast `CAST(x (as TIMESTAMP) as TIMESTAMP)` once the DATETIME -> TIMESTAMP
    7362            mapping is applied in the target dialect generator.
    7363
    7364    Returns:
    7365        The new Cast instance.
    7366    """
    7367    expr = maybe_parse(expression, copy=copy, dialect=dialect, **opts)
    7368    data_type = DataType.build(to, copy=copy, dialect=dialect, **opts)
    7369
    7370    # dont re-cast if the expression is already a cast to the correct type
    7371    if isinstance(expr, Cast):
    7372        from sqlglot.dialects.dialect import Dialect
    7373
    7374        target_dialect = Dialect.get_or_raise(dialect)
    7375        type_mapping = target_dialect.generator_class.TYPE_MAPPING
    7376
    7377        existing_cast_type: DataType.Type = expr.to.this
    7378        new_cast_type: DataType.Type = data_type.this
    7379        types_are_equivalent = type_mapping.get(
    7380            existing_cast_type, existing_cast_type
    7381        ) == type_mapping.get(new_cast_type, new_cast_type)
    7382        if expr.is_type(data_type) or types_are_equivalent:
    7383            return expr
    7384
    7385    expr = Cast(this=expr, to=data_type)
    7386    expr.type = data_type
    7387
    7388    return expr

Cast an expression to a data type.

###### Example:

>     >>> cast('x + 1', 'int').sql()
>     'CAST(x + 1 AS INT)'

###### Arguments:

- expression: The expression to cast.
- to: The datatype to cast to.
- copy: Whether to copy the supplied expressions.

- dialect: The target dialect. This is used to prevent a re-cast in the following scenario:

  - The expression to be cast is already a exp.Cast expression
  - The existing cast is to a type that is logically equivalent to new type

  For example, if :expression='CAST(x as DATETIME)' and :to=Type.TIMESTAMP, but in the target dialect DATETIME is mapped to TIMESTAMP, then we will NOT return `CAST(x (as DATETIME) as TIMESTAMP)` and instead just return the original expression `CAST(x as DATETIME)`.

  This is to prevent it being output as a double cast `CAST(x (as TIMESTAMP) as TIMESTAMP)` once the DATETIME -> TIMESTAMP mapping is applied in the target dialect generator.

###### Returns:

> The new Cast instance.

def table_( table: Identifier | str, db: Union[Identifier, str, NoneType] = None, catalog: Union[Identifier, str, NoneType] = None, quoted: Optional[bool] = None, alias: Union[Identifier, str, NoneType] = None) -> Table: View Source

    7391def table_(
    7392    table: Identifier | str,
    7393    db: t.Optional[Identifier | str] = None,
    7394    catalog: t.Optional[Identifier | str] = None,
    7395    quoted: t.Optional[bool] = None,
    7396    alias: t.Optional[Identifier | str] = None,
    7397) -> Table:
    7398    """Build a Table.
    7399
    7400    Args:
    7401        table: Table name.
    7402        db: Database name.
    7403        catalog: Catalog name.
    7404        quote: Whether to force quotes on the table's identifiers.
    7405        alias: Table's alias.
    7406
    7407    Returns:
    7408        The new Table instance.
    7409    """
    7410    return Table(
    7411        this=to_identifier(table, quoted=quoted) if table else None,
    7412        db=to_identifier(db, quoted=quoted) if db else None,
    7413        catalog=to_identifier(catalog, quoted=quoted) if catalog else None,
    7414        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    7415    )

Build a Table.

###### Arguments:

- table: Table name.
- db: Database name.
- catalog: Catalog name.
- quote: Whether to force quotes on the table's identifiers.
- alias: Table's alias.

###### Returns:

> The new Table instance.

def values( values: Iterable[Tuple[Any, ...]], alias: Optional[str] = None, columns: Union[Iterable[str], Dict[str, DataType], NoneType] = None) -> Values: View Source

    7418def values(
    7419    values: t.Iterable[t.Tuple[t.Any, ...]],
    7420    alias: t.Optional[str] = None,
    7421    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    7422) -> Values:
    7423    """Build VALUES statement.
    7424
    7425    Example:
    7426        >>> values([(1, '2')]).sql()
    7427        "VALUES (1, '2')"
    7428
    7429    Args:
    7430        values: values statements that will be converted to SQL
    7431        alias: optional alias
    7432        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    7433         If either are provided then an alias is also required.
    7434
    7435    Returns:
    7436        Values: the Values expression object
    7437    """
    7438    if columns and not alias:
    7439        raise ValueError("Alias is required when providing columns")
    7440
    7441    return Values(
    7442        expressions=[convert(tup) for tup in values],
    7443        alias=(
    7444            TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    7445            if columns
    7446            else (TableAlias(this=to_identifier(alias)) if alias else None)
    7447        ),
    7448    )

Build VALUES statement.

###### Example:

>     >>> values([(1, '2')]).sql()
>     "VALUES (1, '2')"

###### Arguments:

- values: values statements that will be converted to SQL
- alias: optional alias
- columns: Optional list of ordered column names or ordered dictionary of column names to types. If either are provided then an alias is also required.

###### Returns:

> Values: the Values expression object

def var( name: Union[str, Expression, NoneType]) -> Var: View Source

    7451def var(name: t.Optional[ExpOrStr]) -> Var:
    7452    """Build a SQL variable.
    7453
    7454    Example:
    7455        >>> repr(var('x'))
    7456        'Var(this=x)'
    7457
    7458        >>> repr(var(column('x', table='y')))
    7459        'Var(this=x)'
    7460
    7461    Args:
    7462        name: The name of the var or an expression who's name will become the var.
    7463
    7464    Returns:
    7465        The new variable node.
    7466    """
    7467    if not name:
    7468        raise ValueError("Cannot convert empty name into var.")
    7469
    7470    if isinstance(name, Expression):
    7471        name = name.name
    7472    return Var(this=name)

Build a SQL variable.

###### Example:

>     >>> repr(var('x'))
>     'Var(this=x)'

>     >>> repr(var(column('x', table='y')))
>     'Var(this=x)'

###### Arguments:

- name: The name of the var or an expression who's name will become the var.

###### Returns:

> The new variable node.

def rename_table( old_name: str | Table, new_name: str | Table, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> Alter: View Source

    7475def rename_table(
    7476    old_name: str | Table,
    7477    new_name: str | Table,
    7478    dialect: DialectType = None,
    7479) -> Alter:
    7480    """Build ALTER TABLE... RENAME... expression
    7481
    7482    Args:
    7483        old_name: The old name of the table
    7484        new_name: The new name of the table
    7485        dialect: The dialect to parse the table.
    7486
    7487    Returns:
    7488        Alter table expression
    7489    """
    7490    old_table = to_table(old_name, dialect=dialect)
    7491    new_table = to_table(new_name, dialect=dialect)
    7492    return Alter(
    7493        this=old_table,
    7494        kind="TABLE",
    7495        actions=[
    7496            RenameTable(this=new_table),
    7497        ],
    7498    )

Build ALTER TABLE... RENAME... expression

###### Arguments:

- old_name: The old name of the table
- new_name: The new name of the table
- dialect: The dialect to parse the table.

###### Returns:

> Alter table expression

def rename_column( table_name: str | Table, old_column_name: str | Column, new_column_name: str | Column, exists: Optional[bool] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> Alter: View Source

    7501def rename_column(
    7502    table_name: str | Table,
    7503    old_column_name: str | Column,
    7504    new_column_name: str | Column,
    7505    exists: t.Optional[bool] = None,
    7506    dialect: DialectType = None,
    7507) -> Alter:
    7508    """Build ALTER TABLE... RENAME COLUMN... expression
    7509
    7510    Args:
    7511        table_name: Name of the table
    7512        old_column: The old name of the column
    7513        new_column: The new name of the column
    7514        exists: Whether to add the `IF EXISTS` clause
    7515        dialect: The dialect to parse the table/column.
    7516
    7517    Returns:
    7518        Alter table expression
    7519    """
    7520    table = to_table(table_name, dialect=dialect)
    7521    old_column = to_column(old_column_name, dialect=dialect)
    7522    new_column = to_column(new_column_name, dialect=dialect)
    7523    return Alter(
    7524        this=table,
    7525        kind="TABLE",
    7526        actions=[
    7527            RenameColumn(this=old_column, to=new_column, exists=exists),
    7528        ],
    7529    )

Build ALTER TABLE... RENAME COLUMN... expression

###### Arguments:

- table_name: Name of the table
- old_column: The old name of the column
- new_column: The new name of the column
- exists: Whether to add the `IF EXISTS` clause
- dialect: The dialect to parse the table/column.

###### Returns:

> Alter table expression

def convert(value: Any, copy: bool = False) -> Expression: View Source

    7532def convert(value: t.Any, copy: bool = False) -> Expression:
    7533    """Convert a python value into an expression object.
    7534
    7535    Raises an error if a conversion is not possible.
    7536
    7537    Args:
    7538        value: A python object.
    7539        copy: Whether to copy `value` (only applies to Expressions and collections).
    7540
    7541    Returns:
    7542        The equivalent expression object.
    7543    """
    7544    if isinstance(value, Expression):
    7545        return maybe_copy(value, copy)
    7546    if isinstance(value, str):
    7547        return Literal.string(value)
    7548    if isinstance(value, bool):
    7549        return Boolean(this=value)
    7550    if value is None or (isinstance(value, float) and math.isnan(value)):
    7551        return null()
    7552    if isinstance(value, numbers.Number):
    7553        return Literal.number(value)
    7554    if isinstance(value, bytes):
    7555        return HexString(this=value.hex())
    7556    if isinstance(value, datetime.datetime):
    7557        datetime_literal = Literal.string(value.isoformat(sep=" "))
    7558
    7559        tz = None
    7560        if value.tzinfo:
    7561            # this works for zoneinfo.ZoneInfo, pytz.timezone and datetime.datetime.utc to return IANA timezone names like "America/Los_Angeles"
    7562            # instead of abbreviations like "PDT". This is for consistency with other timezone handling functions in SQLGlot
    7563            tz = Literal.string(str(value.tzinfo))
    7564
    7565        return TimeStrToTime(this=datetime_literal, zone=tz)
    7566    if isinstance(value, datetime.date):
    7567        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    7568        return DateStrToDate(this=date_literal)
    7569    if isinstance(value, tuple):
    7570        if hasattr(value, "_fields"):
    7571            return Struct(
    7572                expressions=[
    7573                    PropertyEQ(
    7574                        this=to_identifier(k), expression=convert(getattr(value, k), copy=copy)
    7575                    )
    7576                    for k in value._fields
    7577                ]
    7578            )
    7579        return Tuple(expressions=[convert(v, copy=copy) for v in value])
    7580    if isinstance(value, list):
    7581        return Array(expressions=[convert(v, copy=copy) for v in value])
    7582    if isinstance(value, dict):
    7583        return Map(
    7584            keys=Array(expressions=[convert(k, copy=copy) for k in value]),
    7585            values=Array(expressions=[convert(v, copy=copy) for v in value.values()]),
    7586        )
    7587    if hasattr(value, "__dict__"):
    7588        return Struct(
    7589            expressions=[
    7590                PropertyEQ(this=to_identifier(k), expression=convert(v, copy=copy))
    7591                for k, v in value.__dict__.items()
    7592            ]
    7593        )
    7594    raise ValueError(f"Cannot convert {value}")

Convert a python value into an expression object.

Raises an error if a conversion is not possible.

###### Arguments:

- value: A python object.
- copy: Whether to copy `value` (only applies to Expressions and collections).

###### Returns:

> The equivalent expression object.

def replace_children( expression: Expression, fun: Callable, *args, **kwargs) -> None: View Source

    7597def replace_children(expression: Expression, fun: t.Callable, *args, **kwargs) -> None:
    7598    """
    7599    Replace children of an expression with the result of a lambda fun(child) -> exp.
    7600    """
    7601    for k, v in tuple(expression.args.items()):
    7602        is_list_arg = type(v) is list
    7603
    7604        child_nodes = v if is_list_arg else [v]
    7605        new_child_nodes = []
    7606
    7607        for cn in child_nodes:
    7608            if isinstance(cn, Expression):
    7609                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    7610                    new_child_nodes.append(child_node)
    7611            else:
    7612                new_child_nodes.append(cn)
    7613
    7614        expression.set(k, new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0))

Replace children of an expression with the result of a lambda fun(child) -> exp.

def replace_tree( expression: Expression, fun: Callable, prune: Optional[Callable[[Expression], bool]] = None) -> Expression: View Source

    7617def replace_tree(
    7618    expression: Expression,
    7619    fun: t.Callable,
    7620    prune: t.Optional[t.Callable[[Expression], bool]] = None,
    7621) -> Expression:
    7622    """
    7623    Replace an entire tree with the result of function calls on each node.
    7624
    7625    This will be traversed in reverse dfs, so leaves first.
    7626    If new nodes are created as a result of function calls, they will also be traversed.
    7627    """
    7628    stack = list(expression.dfs(prune=prune))
    7629
    7630    while stack:
    7631        node = stack.pop()
    7632        new_node = fun(node)
    7633
    7634        if new_node is not node:
    7635            node.replace(new_node)
    7636
    7637            if isinstance(new_node, Expression):
    7638                stack.append(new_node)
    7639
    7640    return new_node

Replace an entire tree with the result of function calls on each node.

This will be traversed in reverse dfs, so leaves first. If new nodes are created as a result of function calls, they will also be traversed.

def column_table_names( expression: Expression, exclude: str = '') -> Set[str]: View Source

    7643def column_table_names(expression: Expression, exclude: str = "") -> t.Set[str]:
    7644    """
    7645    Return all table names referenced through columns in an expression.
    7646
    7647    Example:
    7648        >>> import sqlglot
    7649        >>> sorted(column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")))
    7650        ['a', 'c']
    7651
    7652    Args:
    7653        expression: expression to find table names.
    7654        exclude: a table name to exclude
    7655
    7656    Returns:
    7657        A list of unique names.
    7658    """
    7659    return {
    7660        table
    7661        for table in (column.table for column in expression.find_all(Column))
    7662        if table and table != exclude
    7663    }

Return all table names referenced through columns in an expression.

###### Example:

>     >>> import sqlglot
>     >>> sorted(column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")))
>     ['a', 'c']

###### Arguments:

- expression: expression to find table names.
- exclude: a table name to exclude

###### Returns:

> A list of unique names.

def table_name( table: Table | str, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, identify: bool = False) -> str: View Source

    7666def table_name(table: Table | str, dialect: DialectType = None, identify: bool = False) -> str:
    7667    """Get the full name of a table as a string.
    7668
    7669    Args:
    7670        table: Table expression node or string.
    7671        dialect: The dialect to generate the table name for.
    7672        identify: Determines when an identifier should be quoted. Possible values are:
    7673            False (default): Never quote, except in cases where it's mandatory by the dialect.
    7674            True: Always quote.
    7675
    7676    Examples:
    7677        >>> from sqlglot import exp, parse_one
    7678        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    7679        'a.b.c'
    7680
    7681    Returns:
    7682        The table name.
    7683    """
    7684
    7685    table = maybe_parse(table, into=Table, dialect=dialect)
    7686
    7687    if not table:
    7688        raise ValueError(f"Cannot parse {table}")
    7689
    7690    return ".".join(
    7691        (
    7692            part.sql(dialect=dialect, identify=True, copy=False)
    7693            if identify or not SAFE_IDENTIFIER_RE.match(part.name)
    7694            else part.name
    7695        )
    7696        for part in table.parts
    7697    )

Get the full name of a table as a string.

###### Arguments:

- table: Table expression node or string.
- dialect: The dialect to generate the table name for.
- identify: Determines when an identifier should be quoted. Possible values are: False (default): Never quote, except in cases where it's mandatory by the dialect. True: Always quote.

###### Examples:

>     >>> from sqlglot import exp, parse_one
>     >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
>     'a.b.c'

###### Returns:

> The table name.

def normalize_table_name( table: str | Table, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True) -> str: View Source

    7700def normalize_table_name(table: str | Table, dialect: DialectType = None, copy: bool = True) -> str:
    7701    """Returns a case normalized table name without quotes.
    7702
    7703    Args:
    7704        table: the table to normalize
    7705        dialect: the dialect to use for normalization rules
    7706        copy: whether to copy the expression.
    7707
    7708    Examples:
    7709        >>> normalize_table_name("`A-B`.c", dialect="bigquery")
    7710        'A-B.c'
    7711    """
    7712    from sqlglot.optimizer.normalize_identifiers import normalize_identifiers
    7713
    7714    return ".".join(
    7715        p.name
    7716        for p in normalize_identifiers(
    7717            to_table(table, dialect=dialect, copy=copy), dialect=dialect
    7718        ).parts
    7719    )

Returns a case normalized table name without quotes.

###### Arguments:

- table: the table to normalize
- dialect: the dialect to use for normalization rules
- copy: whether to copy the expression.

###### Examples:

>     >>> normalize_table_name("`A-B`.c", dialect="bigquery")
>     'A-B.c'

def replace_tables( expression: ~E, mapping: Dict[str, str], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True) -> ~E: View Source

    7722def replace_tables(
    7723    expression: E, mapping: t.Dict[str, str], dialect: DialectType = None, copy: bool = True
    7724) -> E:
    7725    """Replace all tables in expression according to the mapping.
    7726
    7727    Args:
    7728        expression: expression node to be transformed and replaced.
    7729        mapping: mapping of table names.
    7730        dialect: the dialect of the mapping table
    7731        copy: whether to copy the expression.
    7732
    7733    Examples:
    7734        >>> from sqlglot import exp, parse_one
    7735        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    7736        'SELECT * FROM c /* a.b */'
    7737
    7738    Returns:
    7739        The mapped expression.
    7740    """
    7741
    7742    mapping = {normalize_table_name(k, dialect=dialect): v for k, v in mapping.items()}
    7743
    7744    def _replace_tables(node: Expression) -> Expression:
    7745        if isinstance(node, Table):
    7746            original = normalize_table_name(node, dialect=dialect)
    7747            new_name = mapping.get(original)
    7748
    7749            if new_name:
    7750                table = to_table(
    7751                    new_name,
    7752                    **{k: v for k, v in node.args.items() if k not in TABLE_PARTS},
    7753                    dialect=dialect,
    7754                )
    7755                table.add_comments([original])
    7756                return table
    7757        return node
    7758
    7759    return expression.transform(_replace_tables, copy=copy)  # type: ignore

Replace all tables in expression according to the mapping.

###### Arguments:

- expression: expression node to be transformed and replaced.
- mapping: mapping of table names.
- dialect: the dialect of the mapping table
- copy: whether to copy the expression.

###### Examples:

>     >>> from sqlglot import exp, parse_one
>     >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
>     'SELECT * FROM c /* a.b */'

###### Returns:

> The mapped expression.

def replace_placeholders( expression: Expression, *args, **kwargs) -> Expression: View Source

    7762def replace_placeholders(expression: Expression, *args, **kwargs) -> Expression:
    7763    """Replace placeholders in an expression.
    7764
    7765    Args:
    7766        expression: expression node to be transformed and replaced.
    7767        args: positional names that will substitute unnamed placeholders in the given order.
    7768        kwargs: keyword arguments that will substitute named placeholders.
    7769
    7770    Examples:
    7771        >>> from sqlglot import exp, parse_one
    7772        >>> replace_placeholders(
    7773        ...     parse_one("select * from :tbl where ? = ?"),
    7774        ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
    7775        ... ).sql()
    7776        "SELECT * FROM foo WHERE str_col = 'b'"
    7777
    7778    Returns:
    7779        The mapped expression.
    7780    """
    7781
    7782    def _replace_placeholders(node: Expression, args, **kwargs) -> Expression:
    7783        if isinstance(node, Placeholder):
    7784            if node.this:
    7785                new_name = kwargs.get(node.this)
    7786                if new_name is not None:
    7787                    return convert(new_name)
    7788            else:
    7789                try:
    7790                    return convert(next(args))
    7791                except StopIteration:
    7792                    pass
    7793        return node
    7794
    7795    return expression.transform(_replace_placeholders, iter(args), **kwargs)

Replace placeholders in an expression.

###### Arguments:

- expression: expression node to be transformed and replaced.
- args: positional names that will substitute unnamed placeholders in the given order.
- kwargs: keyword arguments that will substitute named placeholders.

###### Examples:

>     >>> from sqlglot import exp, parse_one
>     >>> replace_placeholders(
>     ...     parse_one("select * from :tbl where ? = ?"),
>     ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
>     ... ).sql()
>     "SELECT * FROM foo WHERE str_col = 'b'"

###### Returns:

> The mapped expression.

def expand( expression: Expression, sources: Dict[str, Query], dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, copy: bool = True) -> Expression: View Source

    7798def expand(
    7799    expression: Expression,
    7800    sources: t.Dict[str, Query],
    7801    dialect: DialectType = None,
    7802    copy: bool = True,
    7803) -> Expression:
    7804    """Transforms an expression by expanding all referenced sources into subqueries.
    7805
    7806    Examples:
    7807        >>> from sqlglot import parse_one
    7808        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    7809        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    7810
    7811        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()
    7812        'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'
    7813
    7814    Args:
    7815        expression: The expression to expand.
    7816        sources: A dictionary of name to Queries.
    7817        dialect: The dialect of the sources dict.
    7818        copy: Whether to copy the expression during transformation. Defaults to True.
    7819
    7820    Returns:
    7821        The transformed expression.
    7822    """
    7823    sources = {normalize_table_name(k, dialect=dialect): v for k, v in sources.items()}
    7824
    7825    def _expand(node: Expression):
    7826        if isinstance(node, Table):
    7827            name = normalize_table_name(node, dialect=dialect)
    7828            source = sources.get(name)
    7829            if source:
    7830                subquery = source.subquery(node.alias or name)
    7831                subquery.comments = [f"source: {name}"]
    7832                return subquery.transform(_expand, copy=False)
    7833        return node
    7834
    7835    return expression.transform(_expand, copy=copy)

Transforms an expression by expanding all referenced sources into subqueries.

###### Examples:

>     >>> from sqlglot import parse_one
>     >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
>     'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'

>     >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()
>     'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'

###### Arguments:

- expression: The expression to expand.
- sources: A dictionary of name to Queries.
- dialect: The dialect of the sources dict.
- copy: Whether to copy the expression during transformation. Defaults to True.

###### Returns:

> The transformed expression.

def func( name: str, *args, copy: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **kwargs) -> Func: View Source

    7838def func(name: str, *args, copy: bool = True, dialect: DialectType = None, **kwargs) -> Func:
    7839    """
    7840    Returns a Func expression.
    7841
    7842    Examples:
    7843        >>> func("abs", 5).sql()
    7844        'ABS(5)'
    7845
    7846        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    7847        'CAST(5 AS DOUBLE)'
    7848
    7849    Args:
    7850        name: the name of the function to build.
    7851        args: the args used to instantiate the function of interest.
    7852        copy: whether to copy the argument expressions.
    7853        dialect: the source dialect.
    7854        kwargs: the kwargs used to instantiate the function of interest.
    7855
    7856    Note:
    7857        The arguments `args` and `kwargs` are mutually exclusive.
    7858
    7859    Returns:
    7860        An instance of the function of interest, or an anonymous function, if `name` doesn't
    7861        correspond to an existing `sqlglot.expressions.Func` class.
    7862    """
    7863    if args and kwargs:
    7864        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    7865
    7866    from sqlglot.dialects.dialect import Dialect
    7867
    7868    dialect = Dialect.get_or_raise(dialect)
    7869
    7870    converted: t.List[Expression] = [maybe_parse(arg, dialect=dialect, copy=copy) for arg in args]
    7871    kwargs = {key: maybe_parse(value, dialect=dialect, copy=copy) for key, value in kwargs.items()}
    7872
    7873    constructor = dialect.parser_class.FUNCTIONS.get(name.upper())
    7874    if constructor:
    7875        if converted:
    7876            if "dialect" in constructor.__code__.co_varnames:
    7877                function = constructor(converted, dialect=dialect)
    7878            else:
    7879                function = constructor(converted)
    7880        elif constructor.__name__ == "from_arg_list":
    7881            function = constructor.__self__(**kwargs)  # type: ignore
    7882        else:
    7883            constructor = FUNCTION_BY_NAME.get(name.upper())
    7884            if constructor:
    7885                function = constructor(**kwargs)
    7886            else:
    7887                raise ValueError(
    7888                    f"Unable to convert '{name}' into a Func. Either manually construct "
    7889                    "the Func expression of interest or parse the function call."
    7890                )
    7891    else:
    7892        kwargs = kwargs or {"expressions": converted}
    7893        function = Anonymous(this=name, **kwargs)
    7894
    7895    for error_message in function.error_messages(converted):
    7896        raise ValueError(error_message)
    7897
    7898    return function

Returns a Func expression.

###### Examples:

>     >>> func("abs", 5).sql()
>     'ABS(5)'

>     >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
>     'CAST(5 AS DOUBLE)'

###### Arguments:

- name: the name of the function to build.
- args: the args used to instantiate the function of interest.
- copy: whether to copy the argument expressions.
- dialect: the source dialect.
- kwargs: the kwargs used to instantiate the function of interest.

###### Note:

> The arguments `args` and `kwargs` are mutually exclusive.

###### Returns:

> An instance of the function of interest, or an anonymous function, if `name` doesn't correspond to an existing `Func` class.

def case( expression: Union[str, Expression, NoneType] = None, **opts) -> Case: View Source

    7901def case(
    7902    expression: t.Optional[ExpOrStr] = None,
    7903    **opts,
    7904) -> Case:
    7905    """
    7906    Initialize a CASE statement.
    7907
    7908    Example:
    7909        case().when("a = 1", "foo").else_("bar")
    7910
    7911    Args:
    7912        expression: Optionally, the input expression (not all dialects support this)
    7913        **opts: Extra keyword arguments for parsing `expression`
    7914    """
    7915    if expression is not None:
    7916        this = maybe_parse(expression, **opts)
    7917    else:
    7918        this = None
    7919    return Case(this=this, ifs=[])

Initialize a CASE statement.

###### Example:

> case().when("a = 1", "foo").else_("bar")

###### Arguments:

- expression: Optionally, the input expression (not all dialects support this)
- **opts: Extra keyword arguments for parsing `expression`

def array( *expressions: Union[str, Expression], copy: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **kwargs) -> Array: View Source

    7922def array(
    7923    *expressions: ExpOrStr, copy: bool = True, dialect: DialectType = None, **kwargs
    7924) -> Array:
    7925    """
    7926    Returns an array.
    7927
    7928    Examples:
    7929        >>> array(1, 'x').sql()
    7930        'ARRAY(1, x)'
    7931
    7932    Args:
    7933        expressions: the expressions to add to the array.
    7934        copy: whether to copy the argument expressions.
    7935        dialect: the source dialect.
    7936        kwargs: the kwargs used to instantiate the function of interest.
    7937
    7938    Returns:
    7939        An array expression.
    7940    """
    7941    return Array(
    7942        expressions=[
    7943            maybe_parse(expression, copy=copy, dialect=dialect, **kwargs)
    7944            for expression in expressions
    7945        ]
    7946    )

Returns an array.

###### Examples:

>     >>> array(1, 'x').sql()
>     'ARRAY(1, x)'

###### Arguments:

- expressions: the expressions to add to the array.
- copy: whether to copy the argument expressions.
- dialect: the source dialect.
- kwargs: the kwargs used to instantiate the function of interest.

###### Returns:

> An array expression.

def tuple_( *expressions: Union[str, Expression], copy: bool = True, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, **kwargs) -> Tuple: View Source

    7949def tuple_(
    7950    *expressions: ExpOrStr, copy: bool = True, dialect: DialectType = None, **kwargs
    7951) -> Tuple:
    7952    """
    7953    Returns an tuple.
    7954
    7955    Examples:
    7956        >>> tuple_(1, 'x').sql()
    7957        '(1, x)'
    7958
    7959    Args:
    7960        expressions: the expressions to add to the tuple.
    7961        copy: whether to copy the argument expressions.
    7962        dialect: the source dialect.
    7963        kwargs: the kwargs used to instantiate the function of interest.
    7964
    7965    Returns:
    7966        A tuple expression.
    7967    """
    7968    return Tuple(
    7969        expressions=[
    7970            maybe_parse(expression, copy=copy, dialect=dialect, **kwargs)
    7971            for expression in expressions
    7972        ]
    7973    )

Returns an tuple.

###### Examples:

>     >>> tuple_(1, 'x').sql()
>     '(1, x)'

###### Arguments:

- expressions: the expressions to add to the tuple.
- copy: whether to copy the argument expressions.
- dialect: the source dialect.
- kwargs: the kwargs used to instantiate the function of interest.

###### Returns:

> A tuple expression.

def true() -> Boolean: View Source

    7976def true() -> Boolean:
    7977    """
    7978    Returns a true Boolean expression.
    7979    """
    7980    return Boolean(this=True)

Returns a true Boolean expression.

def false() -> Boolean: View Source

    7983def false() -> Boolean:
    7984    """
    7985    Returns a false Boolean expression.
    7986    """
    7987    return Boolean(this=False)

Returns a false Boolean expression.

def null() -> Null: View Source

    7990def null() -> Null:
    7991    """
    7992    Returns a Null expression.
    7993    """
    7994    return Null()

Returns a Null expression.

NONNULL_CONSTANTS = (<class 'Literal'>, <class 'Boolean'>)
CONSTANTS = (<class 'Literal'>, <class 'Boolean'>, <class 'Null'>)