sqlglot.dialects.bigquery API documentation

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# sqlglot.dialects.bigquery

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       1from __future__ import annotations
       2
       3import logging
       4import re
       5import typing as t
       6
       7from sqlglot import exp, generator, parser, tokens, transforms
       8from sqlglot._typing import E
       9from sqlglot.dialects.dialect import (
      10    Dialect,
      11    NormalizationStrategy,
      12    annotate_with_type_lambda,
      13    arg_max_or_min_no_count,
      14    binary_from_function,
      15    date_add_interval_sql,
      16    datestrtodate_sql,
      17    build_formatted_time,
      18    filter_array_using_unnest,
      19    if_sql,
      20    inline_array_unless_query,
      21    max_or_greatest,
      22    min_or_least,
      23    no_ilike_sql,
      24    build_date_delta_with_interval,
      25    regexp_replace_sql,
      26    rename_func,
      27    sha256_sql,
      28    timestrtotime_sql,
      29    ts_or_ds_add_cast,
      30    unit_to_var,
      31    strposition_sql,
      32    groupconcat_sql,
      33)
      34from sqlglot.helper import seq_get, split_num_words
      35from sqlglot.tokens import TokenType
      36from sqlglot.generator import unsupported_args
      37
      38if t.TYPE_CHECKING:
      39    from sqlglot._typing import Lit
      40
      41    from sqlglot.optimizer.annotate_types import TypeAnnotator
      42
      43logger = logging.getLogger("sqlglot")
      44
      45
      46JSON_EXTRACT_TYPE = t.Union[exp.JSONExtract, exp.JSONExtractScalar, exp.JSONExtractArray]
      47
      48DQUOTES_ESCAPING_JSON_FUNCTIONS = ("JSON_QUERY", "JSON_VALUE", "JSON_QUERY_ARRAY")
      49
      50
      51def _derived_table_values_to_unnest(self: BigQuery.Generator, expression: exp.Values) -> str:
      52    if not expression.find_ancestor(exp.From, exp.Join):
      53        return self.values_sql(expression)
      54
      55    structs = []
      56    alias = expression.args.get("alias")
      57    for tup in expression.find_all(exp.Tuple):
      58        field_aliases = (
      59            alias.columns
      60            if alias and alias.columns
      61            else (f"_c{i}" for i in range(len(tup.expressions)))
      62        )
      63        expressions = [
      64            exp.PropertyEQ(this=exp.to_identifier(name), expression=fld)
      65            for name, fld in zip(field_aliases, tup.expressions)
      66        ]
      67        structs.append(exp.Struct(expressions=expressions))
      68
      69    # Due to `UNNEST_COLUMN_ONLY`, it is expected that the table alias be contained in the columns expression
      70    alias_name_only = exp.TableAlias(columns=[alias.this]) if alias else None
      71    return self.unnest_sql(
      72        exp.Unnest(expressions=[exp.array(*structs, copy=False)], alias=alias_name_only)
      73    )
      74
      75
      76def _returnsproperty_sql(self: BigQuery.Generator, expression: exp.ReturnsProperty) -> str:
      77    this = expression.this
      78    if isinstance(this, exp.Schema):
      79        this = f"{self.sql(this, 'this')} <{self.expressions(this)}>"
      80    else:
      81        this = self.sql(this)
      82    return f"RETURNS {this}"
      83
      84
      85def _create_sql(self: BigQuery.Generator, expression: exp.Create) -> str:
      86    returns = expression.find(exp.ReturnsProperty)
      87    if expression.kind == "FUNCTION" and returns and returns.args.get("is_table"):
      88        expression.set("kind", "TABLE FUNCTION")
      89
      90        if isinstance(expression.expression, (exp.Subquery, exp.Literal)):
      91            expression.set("expression", expression.expression.this)
      92
      93    return self.create_sql(expression)
      94
      95
      96# https://issuetracker.google.com/issues/162294746
      97# workaround for bigquery bug when grouping by an expression and then ordering
      98# WITH x AS (SELECT 1 y)
      99# SELECT y + 1 z
     100# FROM x
     101# GROUP BY x + 1
     102# ORDER by z
     103def _alias_ordered_group(expression: exp.Expression) -> exp.Expression:
     104    if isinstance(expression, exp.Select):
     105        group = expression.args.get("group")
     106        order = expression.args.get("order")
     107
     108        if group and order:
     109            aliases = {
     110                select.this: select.args["alias"]
     111                for select in expression.selects
     112                if isinstance(select, exp.Alias)
     113            }
     114
     115            for grouped in group.expressions:
     116                if grouped.is_int:
     117                    continue
     118                alias = aliases.get(grouped)
     119                if alias:
     120                    grouped.replace(exp.column(alias))
     121
     122    return expression
     123
     124
     125def _pushdown_cte_column_names(expression: exp.Expression) -> exp.Expression:
     126    """BigQuery doesn't allow column names when defining a CTE, so we try to push them down."""
     127    if isinstance(expression, exp.CTE) and expression.alias_column_names:
     128        cte_query = expression.this
     129
     130        if cte_query.is_star:
     131            logger.warning(
     132                "Can't push down CTE column names for star queries. Run the query through"
     133                " the optimizer or use 'qualify' to expand the star projections first."
     134            )
     135            return expression
     136
     137        column_names = expression.alias_column_names
     138        expression.args["alias"].set("columns", None)
     139
     140        for name, select in zip(column_names, cte_query.selects):
     141            to_replace = select
     142
     143            if isinstance(select, exp.Alias):
     144                select = select.this
     145
     146            # Inner aliases are shadowed by the CTE column names
     147            to_replace.replace(exp.alias_(select, name))
     148
     149    return expression
     150
     151
     152def _build_parse_timestamp(args: t.List) -> exp.StrToTime:
     153    this = build_formatted_time(exp.StrToTime, "bigquery")([seq_get(args, 1), seq_get(args, 0)])
     154    this.set("zone", seq_get(args, 2))
     155    return this
     156
     157
     158def _build_timestamp(args: t.List) -> exp.Timestamp:
     159    timestamp = exp.Timestamp.from_arg_list(args)
     160    timestamp.set("with_tz", True)
     161    return timestamp
     162
     163
     164def _build_date(args: t.List) -> exp.Date | exp.DateFromParts:
     165    expr_type = exp.DateFromParts if len(args) == 3 else exp.Date
     166    return expr_type.from_arg_list(args)
     167
     168
     169def _build_to_hex(args: t.List) -> exp.Hex | exp.MD5:
     170    # TO_HEX(MD5(..)) is common in BigQuery, so it's parsed into MD5 to simplify its transpilation
     171    arg = seq_get(args, 0)
     172    return exp.MD5(this=arg.this) if isinstance(arg, exp.MD5Digest) else exp.LowerHex(this=arg)
     173
     174
     175def _array_contains_sql(self: BigQuery.Generator, expression: exp.ArrayContains) -> str:
     176    return self.sql(
     177        exp.Exists(
     178            this=exp.select("1")
     179            .from_(exp.Unnest(expressions=[expression.left]).as_("_unnest", table=["_col"]))
     180            .where(exp.column("_col").eq(expression.right))
     181        )
     182    )
     183
     184
     185def _ts_or_ds_add_sql(self: BigQuery.Generator, expression: exp.TsOrDsAdd) -> str:
     186    return date_add_interval_sql("DATE", "ADD")(self, ts_or_ds_add_cast(expression))
     187
     188
     189def _ts_or_ds_diff_sql(self: BigQuery.Generator, expression: exp.TsOrDsDiff) -> str:
     190    expression.this.replace(exp.cast(expression.this, exp.DataType.Type.TIMESTAMP))
     191    expression.expression.replace(exp.cast(expression.expression, exp.DataType.Type.TIMESTAMP))
     192    unit = unit_to_var(expression)
     193    return self.func("DATE_DIFF", expression.this, expression.expression, unit)
     194
     195
     196def _unix_to_time_sql(self: BigQuery.Generator, expression: exp.UnixToTime) -> str:
     197    scale = expression.args.get("scale")
     198    timestamp = expression.this
     199
     200    if scale in (None, exp.UnixToTime.SECONDS):
     201        return self.func("TIMESTAMP_SECONDS", timestamp)
     202    if scale == exp.UnixToTime.MILLIS:
     203        return self.func("TIMESTAMP_MILLIS", timestamp)
     204    if scale == exp.UnixToTime.MICROS:
     205        return self.func("TIMESTAMP_MICROS", timestamp)
     206
     207    unix_seconds = exp.cast(
     208        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)), exp.DataType.Type.BIGINT
     209    )
     210    return self.func("TIMESTAMP_SECONDS", unix_seconds)
     211
     212
     213def _build_time(args: t.List) -> exp.Func:
     214    if len(args) == 1:
     215        return exp.TsOrDsToTime(this=args[0])
     216    if len(args) == 2:
     217        return exp.Time.from_arg_list(args)
     218    return exp.TimeFromParts.from_arg_list(args)
     219
     220
     221def _build_datetime(args: t.List) -> exp.Func:
     222    if len(args) == 1:
     223        return exp.TsOrDsToDatetime.from_arg_list(args)
     224    if len(args) == 2:
     225        return exp.Datetime.from_arg_list(args)
     226    return exp.TimestampFromParts.from_arg_list(args)
     227
     228
     229def _build_regexp_extract(
     230    expr_type: t.Type[E], default_group: t.Optional[exp.Expression] = None
     231) -> t.Callable[[t.List], E]:
     232    def _builder(args: t.List) -> E:
     233        try:
     234            group = re.compile(args[1].name).groups == 1
     235        except re.error:
     236            group = False
     237
     238        # Default group is used for the transpilation of REGEXP_EXTRACT_ALL
     239        return expr_type(
     240            this=seq_get(args, 0),
     241            expression=seq_get(args, 1),
     242            position=seq_get(args, 2),
     243            occurrence=seq_get(args, 3),
     244            group=exp.Literal.number(1) if group else default_group,
     245        )
     246
     247    return _builder
     248
     249
     250def _build_extract_json_with_default_path(expr_type: t.Type[E]) -> t.Callable[[t.List, Dialect], E]:
     251    def _builder(args: t.List, dialect: Dialect) -> E:
     252        if len(args) == 1:
     253            # The default value for the JSONPath is '$' i.e all of the data
     254            args.append(exp.Literal.string("$"))
     255        return parser.build_extract_json_with_path(expr_type)(args, dialect)
     256
     257    return _builder
     258
     259
     260def _str_to_datetime_sql(
     261    self: BigQuery.Generator, expression: exp.StrToDate | exp.StrToTime
     262) -> str:
     263    this = self.sql(expression, "this")
     264    dtype = "DATE" if isinstance(expression, exp.StrToDate) else "TIMESTAMP"
     265
     266    if expression.args.get("safe"):
     267        fmt = self.format_time(
     268            expression,
     269            self.dialect.INVERSE_FORMAT_MAPPING,
     270            self.dialect.INVERSE_FORMAT_TRIE,
     271        )
     272        return f"SAFE_CAST({this} AS {dtype} FORMAT {fmt})"
     273
     274    fmt = self.format_time(expression)
     275    return self.func(f"PARSE_{dtype}", fmt, this, expression.args.get("zone"))
     276
     277
     278def _annotate_math_functions(self: TypeAnnotator, expression: E) -> E:
     279    """
     280    Many BigQuery math functions such as CEIL, FLOOR etc follow this return type convention:
     281    +---------+---------+---------+------------+---------+
     282    |  INPUT  | INT64   | NUMERIC | BIGNUMERIC | FLOAT64 |
     283    +---------+---------+---------+------------+---------+
     284    |  OUTPUT | FLOAT64 | NUMERIC | BIGNUMERIC | FLOAT64 |
     285    +---------+---------+---------+------------+---------+
     286    """
     287    self._annotate_args(expression)
     288
     289    this: exp.Expression = expression.this
     290
     291    self._set_type(
     292        expression,
     293        exp.DataType.Type.DOUBLE if this.is_type(*exp.DataType.INTEGER_TYPES) else this.type,
     294    )
     295    return expression
     296
     297
     298@unsupported_args("ins_cost", "del_cost", "sub_cost")
     299def _levenshtein_sql(self: BigQuery.Generator, expression: exp.Levenshtein) -> str:
     300    max_dist = expression.args.get("max_dist")
     301    if max_dist:
     302        max_dist = exp.Kwarg(this=exp.var("max_distance"), expression=max_dist)
     303
     304    return self.func("EDIT_DISTANCE", expression.this, expression.expression, max_dist)
     305
     306
     307def _build_levenshtein(args: t.List) -> exp.Levenshtein:
     308    max_dist = seq_get(args, 2)
     309    return exp.Levenshtein(
     310        this=seq_get(args, 0),
     311        expression=seq_get(args, 1),
     312        max_dist=max_dist.expression if max_dist else None,
     313    )
     314
     315
     316def _build_format_time(expr_type: t.Type[exp.Expression]) -> t.Callable[[t.List], exp.TimeToStr]:
     317    def _builder(args: t.List) -> exp.TimeToStr:
     318        return exp.TimeToStr(
     319            this=expr_type(this=seq_get(args, 1)),
     320            format=seq_get(args, 0),
     321            zone=seq_get(args, 2),
     322        )
     323
     324    return _builder
     325
     326
     327def _build_contains_substring(args: t.List) -> exp.Contains | exp.Anonymous:
     328    if len(args) == 3:
     329        return exp.Anonymous(this="CONTAINS_SUBSTR", expressions=args)
     330
     331    # Lowercase the operands in case of transpilation, as exp.Contains
     332    # is case-sensitive on other dialects
     333    this = exp.Lower(this=seq_get(args, 0))
     334    expr = exp.Lower(this=seq_get(args, 1))
     335
     336    return exp.Contains(this=this, expression=expr)
     337
     338
     339def _json_extract_sql(self: BigQuery.Generator, expression: JSON_EXTRACT_TYPE) -> str:
     340    name = (expression._meta and expression.meta.get("name")) or expression.sql_name()
     341    upper = name.upper()
     342
     343    dquote_escaping = upper in DQUOTES_ESCAPING_JSON_FUNCTIONS
     344
     345    if dquote_escaping:
     346        self._quote_json_path_key_using_brackets = False
     347
     348    sql = rename_func(upper)(self, expression)
     349
     350    if dquote_escaping:
     351        self._quote_json_path_key_using_brackets = True
     352
     353    return sql
     354
     355
     356def _annotate_concat(self: TypeAnnotator, expression: exp.Concat) -> exp.Concat:
     357    annotated = self._annotate_by_args(expression, "expressions")
     358
     359    # Args must be BYTES or types that can be cast to STRING, return type is either BYTES or STRING
     360    # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#concat
     361    if not annotated.is_type(exp.DataType.Type.BINARY, exp.DataType.Type.UNKNOWN):
     362        annotated.type = exp.DataType.Type.VARCHAR
     363
     364    return annotated
     365
     366
     367class BigQuery(Dialect):
     368    WEEK_OFFSET = -1
     369    UNNEST_COLUMN_ONLY = True
     370    SUPPORTS_USER_DEFINED_TYPES = False
     371    SUPPORTS_SEMI_ANTI_JOIN = False
     372    LOG_BASE_FIRST = False
     373    HEX_LOWERCASE = True
     374    FORCE_EARLY_ALIAS_REF_EXPANSION = True
     375    PRESERVE_ORIGINAL_NAMES = True
     376    HEX_STRING_IS_INTEGER_TYPE = True
     377
     378    # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#case_sensitivity
     379    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
     380
     381    # bigquery udfs are case sensitive
     382    NORMALIZE_FUNCTIONS = False
     383
     384    # https://cloud.google.com/bigquery/docs/reference/standard-sql/format-elements#format_elements_date_time
     385    TIME_MAPPING = {
     386        "%D": "%m/%d/%y",
     387        "%E6S": "%S.%f",
     388        "%e": "%-d",
     389    }
     390
     391    FORMAT_MAPPING = {
     392        "DD": "%d",
     393        "MM": "%m",
     394        "MON": "%b",
     395        "MONTH": "%B",
     396        "YYYY": "%Y",
     397        "YY": "%y",
     398        "HH": "%I",
     399        "HH12": "%I",
     400        "HH24": "%H",
     401        "MI": "%M",
     402        "SS": "%S",
     403        "SSSSS": "%f",
     404        "TZH": "%z",
     405    }
     406
     407    # The _PARTITIONTIME and _PARTITIONDATE pseudo-columns are not returned by a SELECT * statement
     408    # https://cloud.google.com/bigquery/docs/querying-partitioned-tables#query_an_ingestion-time_partitioned_table
     409    PSEUDOCOLUMNS = {"_PARTITIONTIME", "_PARTITIONDATE"}
     410
     411    # All set operations require either a DISTINCT or ALL specifier
     412    SET_OP_DISTINCT_BY_DEFAULT = dict.fromkeys((exp.Except, exp.Intersect, exp.Union), None)
     413
     414    # BigQuery maps Type.TIMESTAMP to DATETIME, so we need to amend the inferred types
     415    TYPE_TO_EXPRESSIONS = {
     416        **Dialect.TYPE_TO_EXPRESSIONS,
     417        exp.DataType.Type.TIMESTAMPTZ: Dialect.TYPE_TO_EXPRESSIONS[exp.DataType.Type.TIMESTAMP],
     418    }
     419    TYPE_TO_EXPRESSIONS.pop(exp.DataType.Type.TIMESTAMP)
     420
     421    ANNOTATORS = {
     422        **Dialect.ANNOTATORS,
     423        **{
     424            expr_type: annotate_with_type_lambda(data_type)
     425            for data_type, expressions in TYPE_TO_EXPRESSIONS.items()
     426            for expr_type in expressions
     427        },
     428        **{
     429            expr_type: lambda self, e: _annotate_math_functions(self, e)
     430            for expr_type in (exp.Floor, exp.Ceil, exp.Log, exp.Ln, exp.Sqrt, exp.Exp, exp.Round)
     431        },
     432        **{
     433            expr_type: lambda self, e: self._annotate_by_args(e, "this")
     434            for expr_type in (
     435                exp.Left,
     436                exp.Right,
     437                exp.Lower,
     438                exp.Upper,
     439                exp.Pad,
     440                exp.Trim,
     441                exp.RegexpExtract,
     442                exp.RegexpReplace,
     443                exp.Repeat,
     444                exp.Substring,
     445            )
     446        },
     447        exp.Concat: _annotate_concat,
     448        exp.Sign: lambda self, e: self._annotate_by_args(e, "this"),
     449        exp.Split: lambda self, e: self._annotate_by_args(e, "this", array=True),
     450    }
     451
     452    def normalize_identifier(self, expression: E) -> E:
     453        if (
     454            isinstance(expression, exp.Identifier)
     455            and self.normalization_strategy is NormalizationStrategy.CASE_INSENSITIVE
     456        ):
     457            parent = expression.parent
     458            while isinstance(parent, exp.Dot):
     459                parent = parent.parent
     460
     461            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
     462            # by default. The following check uses a heuristic to detect tables based on whether
     463            # they are qualified. This should generally be correct, because tables in BigQuery
     464            # must be qualified with at least a dataset, unless @@dataset_id is set.
     465            case_sensitive = (
     466                isinstance(parent, exp.UserDefinedFunction)
     467                or (
     468                    isinstance(parent, exp.Table)
     469                    and parent.db
     470                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
     471                )
     472                or expression.meta.get("is_table")
     473            )
     474            if not case_sensitive:
     475                expression.set("this", expression.this.lower())
     476
     477            return t.cast(E, expression)
     478
     479        return super().normalize_identifier(expression)
     480
     481    class Tokenizer(tokens.Tokenizer):
     482        QUOTES = ["'", '"', '"""', "'''"]
     483        COMMENTS = ["--", "#", ("/*", "*/")]
     484        IDENTIFIERS = ["`"]
     485        STRING_ESCAPES = ["\\"]
     486
     487        HEX_STRINGS = [("0x", ""), ("0X", "")]
     488
     489        BYTE_STRINGS = [
     490            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
     491        ]
     492
     493        RAW_STRINGS = [
     494            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
     495        ]
     496
     497        NESTED_COMMENTS = False
     498
     499        KEYWORDS = {
     500            **tokens.Tokenizer.KEYWORDS,
     501            "ANY TYPE": TokenType.VARIANT,
     502            "BEGIN": TokenType.COMMAND,
     503            "BEGIN TRANSACTION": TokenType.BEGIN,
     504            "BYTEINT": TokenType.INT,
     505            "BYTES": TokenType.BINARY,
     506            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
     507            "DATETIME": TokenType.TIMESTAMP,
     508            "DECLARE": TokenType.COMMAND,
     509            "ELSEIF": TokenType.COMMAND,
     510            "EXCEPTION": TokenType.COMMAND,
     511            "EXPORT": TokenType.EXPORT,
     512            "FLOAT64": TokenType.DOUBLE,
     513            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
     514            "MODEL": TokenType.MODEL,
     515            "NOT DETERMINISTIC": TokenType.VOLATILE,
     516            "RECORD": TokenType.STRUCT,
     517            "TIMESTAMP": TokenType.TIMESTAMPTZ,
     518        }
     519        KEYWORDS.pop("DIV")
     520        KEYWORDS.pop("VALUES")
     521        KEYWORDS.pop("/*+")
     522
     523    class Parser(parser.Parser):
     524        PREFIXED_PIVOT_COLUMNS = True
     525        LOG_DEFAULTS_TO_LN = True
     526        SUPPORTS_IMPLICIT_UNNEST = True
     527
     528        # BigQuery does not allow ASC/DESC to be used as an identifier
     529        ID_VAR_TOKENS = parser.Parser.ID_VAR_TOKENS - {TokenType.ASC, TokenType.DESC}
     530        ALIAS_TOKENS = parser.Parser.ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     531        TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     532        COMMENT_TABLE_ALIAS_TOKENS = parser.Parser.COMMENT_TABLE_ALIAS_TOKENS - {
     533            TokenType.ASC,
     534            TokenType.DESC,
     535        }
     536        UPDATE_ALIAS_TOKENS = parser.Parser.UPDATE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     537
     538        FUNCTIONS = {
     539            **parser.Parser.FUNCTIONS,
     540            "CONTAINS_SUBSTR": _build_contains_substring,
     541            "DATE": _build_date,
     542            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     543            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     544            "DATE_TRUNC": lambda args: exp.DateTrunc(
     545                unit=exp.Literal.string(str(seq_get(args, 1))),
     546                this=seq_get(args, 0),
     547                zone=seq_get(args, 2),
     548            ),
     549            "DATETIME": _build_datetime,
     550            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
     551            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
     552            "DIV": binary_from_function(exp.IntDiv),
     553            "EDIT_DISTANCE": _build_levenshtein,
     554            "FORMAT_DATE": _build_format_time(exp.TsOrDsToDate),
     555            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
     556            "JSON_EXTRACT_SCALAR": _build_extract_json_with_default_path(exp.JSONExtractScalar),
     557            "JSON_EXTRACT_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
     558            "JSON_QUERY": parser.build_extract_json_with_path(exp.JSONExtract),
     559            "JSON_QUERY_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
     560            "JSON_VALUE": _build_extract_json_with_default_path(exp.JSONExtractScalar),
     561            "JSON_VALUE_ARRAY": _build_extract_json_with_default_path(exp.JSONValueArray),
     562            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
     563            "MD5": exp.MD5Digest.from_arg_list,
     564            "TO_HEX": _build_to_hex,
     565            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
     566                [seq_get(args, 1), seq_get(args, 0)]
     567            ),
     568            "PARSE_TIMESTAMP": _build_parse_timestamp,
     569            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
     570            "REGEXP_EXTRACT": _build_regexp_extract(exp.RegexpExtract),
     571            "REGEXP_SUBSTR": _build_regexp_extract(exp.RegexpExtract),
     572            "REGEXP_EXTRACT_ALL": _build_regexp_extract(
     573                exp.RegexpExtractAll, default_group=exp.Literal.number(0)
     574            ),
     575            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
     576            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
     577            "SPLIT": lambda args: exp.Split(
     578                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
     579                this=seq_get(args, 0),
     580                expression=seq_get(args, 1) or exp.Literal.string(","),
     581            ),
     582            "STRPOS": exp.StrPosition.from_arg_list,
     583            "TIME": _build_time,
     584            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
     585            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
     586            "TIMESTAMP": _build_timestamp,
     587            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
     588            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
     589            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
     590                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
     591            ),
     592            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
     593                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
     594            ),
     595            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
     596            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
     597            "FORMAT_DATETIME": _build_format_time(exp.TsOrDsToDatetime),
     598            "FORMAT_TIMESTAMP": _build_format_time(exp.TsOrDsToTimestamp),
     599        }
     600
     601        FUNCTION_PARSERS = {
     602            **parser.Parser.FUNCTION_PARSERS,
     603            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
     604            "MAKE_INTERVAL": lambda self: self._parse_make_interval(),
     605            "FEATURES_AT_TIME": lambda self: self._parse_features_at_time(),
     606        }
     607        FUNCTION_PARSERS.pop("TRIM")
     608
     609        NO_PAREN_FUNCTIONS = {
     610            **parser.Parser.NO_PAREN_FUNCTIONS,
     611            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
     612        }
     613
     614        NESTED_TYPE_TOKENS = {
     615            *parser.Parser.NESTED_TYPE_TOKENS,
     616            TokenType.TABLE,
     617        }
     618
     619        PROPERTY_PARSERS = {
     620            **parser.Parser.PROPERTY_PARSERS,
     621            "NOT DETERMINISTIC": lambda self: self.expression(
     622                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
     623            ),
     624            "OPTIONS": lambda self: self._parse_with_property(),
     625        }
     626
     627        CONSTRAINT_PARSERS = {
     628            **parser.Parser.CONSTRAINT_PARSERS,
     629            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
     630        }
     631
     632        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
     633        RANGE_PARSERS.pop(TokenType.OVERLAPS)
     634
     635        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
     636
     637        DASHED_TABLE_PART_FOLLOW_TOKENS = {TokenType.DOT, TokenType.L_PAREN, TokenType.R_PAREN}
     638
     639        STATEMENT_PARSERS = {
     640            **parser.Parser.STATEMENT_PARSERS,
     641            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
     642            TokenType.END: lambda self: self._parse_as_command(self._prev),
     643            TokenType.FOR: lambda self: self._parse_for_in(),
     644            TokenType.EXPORT: lambda self: self._parse_export_data(),
     645        }
     646
     647        BRACKET_OFFSETS = {
     648            "OFFSET": (0, False),
     649            "ORDINAL": (1, False),
     650            "SAFE_OFFSET": (0, True),
     651            "SAFE_ORDINAL": (1, True),
     652        }
     653
     654        def _parse_for_in(self) -> exp.ForIn:
     655            this = self._parse_range()
     656            self._match_text_seq("DO")
     657            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
     658
     659        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
     660            this = super()._parse_table_part(schema=schema) or self._parse_number()
     661
     662            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
     663            if isinstance(this, exp.Identifier):
     664                table_name = this.name
     665                while self._match(TokenType.DASH, advance=False) and self._next:
     666                    start = self._curr
     667                    while self._is_connected() and not self._match_set(
     668                        self.DASHED_TABLE_PART_FOLLOW_TOKENS, advance=False
     669                    ):
     670                        self._advance()
     671
     672                    if start == self._curr:
     673                        break
     674
     675                    table_name += self._find_sql(start, self._prev)
     676
     677                this = exp.Identifier(
     678                    this=table_name, quoted=this.args.get("quoted")
     679                ).update_positions(this)
     680            elif isinstance(this, exp.Literal):
     681                table_name = this.name
     682
     683                if self._is_connected() and self._parse_var(any_token=True):
     684                    table_name += self._prev.text
     685
     686                this = exp.Identifier(this=table_name, quoted=True).update_positions(this)
     687
     688            return this
     689
     690        def _parse_table_parts(
     691            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
     692        ) -> exp.Table:
     693            table = super()._parse_table_parts(
     694                schema=schema, is_db_reference=is_db_reference, wildcard=True
     695            )
     696
     697            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
     698            if not table.catalog:
     699                if table.db:
     700                    previous_db = table.args["db"]
     701                    parts = table.db.split(".")
     702                    if len(parts) == 2 and not table.args["db"].quoted:
     703                        table.set(
     704                            "catalog", exp.Identifier(this=parts[0]).update_positions(previous_db)
     705                        )
     706                        table.set("db", exp.Identifier(this=parts[1]).update_positions(previous_db))
     707                else:
     708                    previous_this = table.this
     709                    parts = table.name.split(".")
     710                    if len(parts) == 2 and not table.this.quoted:
     711                        table.set(
     712                            "db", exp.Identifier(this=parts[0]).update_positions(previous_this)
     713                        )
     714                        table.set(
     715                            "this", exp.Identifier(this=parts[1]).update_positions(previous_this)
     716                        )
     717
     718            if isinstance(table.this, exp.Identifier) and any("." in p.name for p in table.parts):
     719                alias = table.this
     720                catalog, db, this, *rest = (
     721                    exp.to_identifier(p, quoted=True)
     722                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
     723                )
     724
     725                for part in (catalog, db, this):
     726                    if part:
     727                        part.update_positions(table.this)
     728
     729                if rest and this:
     730                    this = exp.Dot.build([this, *rest])  # type: ignore
     731
     732                table = exp.Table(
     733                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
     734                )
     735                table.meta["quoted_table"] = True
     736            else:
     737                alias = None
     738
     739            # The `INFORMATION_SCHEMA` views in BigQuery need to be qualified by a region or
     740            # dataset, so if the project identifier is omitted we need to fix the ast so that
     741            # the `INFORMATION_SCHEMA.X` bit is represented as a single (quoted) Identifier.
     742            # Otherwise, we wouldn't correctly qualify a `Table` node that references these
     743            # views, because it would seem like the "catalog" part is set, when it'd actually
     744            # be the region/dataset. Merging the two identifiers into a single one is done to
     745            # avoid producing a 4-part Table reference, which would cause issues in the schema
     746            # module, when there are 3-part table names mixed with information schema views.
     747            #
     748            # See: https://cloud.google.com/bigquery/docs/information-schema-intro#syntax
     749            table_parts = table.parts
     750            if len(table_parts) > 1 and table_parts[-2].name.upper() == "INFORMATION_SCHEMA":
     751                # We need to alias the table here to avoid breaking existing qualified columns.
     752                # This is expected to be safe, because if there's an actual alias coming up in
     753                # the token stream, it will overwrite this one. If there isn't one, we are only
     754                # exposing the name that can be used to reference the view explicitly (a no-op).
     755                exp.alias_(
     756                    table,
     757                    t.cast(exp.Identifier, alias or table_parts[-1]),
     758                    table=True,
     759                    copy=False,
     760                )
     761
     762                info_schema_view = f"{table_parts[-2].name}.{table_parts[-1].name}"
     763                new_this = exp.Identifier(this=info_schema_view, quoted=True).update_positions(
     764                    line=table_parts[-2].meta.get("line"),
     765                    col=table_parts[-1].meta.get("col"),
     766                    start=table_parts[-2].meta.get("start"),
     767                    end=table_parts[-1].meta.get("end"),
     768                )
     769                table.set("this", new_this)
     770                table.set("db", seq_get(table_parts, -3))
     771                table.set("catalog", seq_get(table_parts, -4))
     772
     773            return table
     774
     775        def _parse_column(self) -> t.Optional[exp.Expression]:
     776            column = super()._parse_column()
     777            if isinstance(column, exp.Column):
     778                parts = column.parts
     779                if any("." in p.name for p in parts):
     780                    catalog, db, table, this, *rest = (
     781                        exp.to_identifier(p, quoted=True)
     782                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
     783                    )
     784
     785                    if rest and this:
     786                        this = exp.Dot.build([this, *rest])  # type: ignore
     787
     788                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
     789                    column.meta["quoted_column"] = True
     790
     791            return column
     792
     793        @t.overload
     794        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
     795
     796        @t.overload
     797        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
     798
     799        def _parse_json_object(self, agg=False):
     800            json_object = super()._parse_json_object()
     801            array_kv_pair = seq_get(json_object.expressions, 0)
     802
     803            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
     804            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
     805            if (
     806                array_kv_pair
     807                and isinstance(array_kv_pair.this, exp.Array)
     808                and isinstance(array_kv_pair.expression, exp.Array)
     809            ):
     810                keys = array_kv_pair.this.expressions
     811                values = array_kv_pair.expression.expressions
     812
     813                json_object.set(
     814                    "expressions",
     815                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
     816                )
     817
     818            return json_object
     819
     820        def _parse_bracket(
     821            self, this: t.Optional[exp.Expression] = None
     822        ) -> t.Optional[exp.Expression]:
     823            bracket = super()._parse_bracket(this)
     824
     825            if this is bracket:
     826                return bracket
     827
     828            if isinstance(bracket, exp.Bracket):
     829                for expression in bracket.expressions:
     830                    name = expression.name.upper()
     831
     832                    if name not in self.BRACKET_OFFSETS:
     833                        break
     834
     835                    offset, safe = self.BRACKET_OFFSETS[name]
     836                    bracket.set("offset", offset)
     837                    bracket.set("safe", safe)
     838                    expression.replace(expression.expressions[0])
     839
     840            return bracket
     841
     842        def _parse_unnest(self, with_alias: bool = True) -> t.Optional[exp.Unnest]:
     843            unnest = super()._parse_unnest(with_alias=with_alias)
     844
     845            if not unnest:
     846                return None
     847
     848            unnest_expr = seq_get(unnest.expressions, 0)
     849            if unnest_expr:
     850                from sqlglot.optimizer.annotate_types import annotate_types
     851
     852                unnest_expr = annotate_types(unnest_expr, dialect=self.dialect)
     853
     854                # Unnesting a nested array (i.e array of structs) explodes the top-level struct fields,
     855                # in contrast to other dialects such as DuckDB which flattens only the array by default
     856                if unnest_expr.is_type(exp.DataType.Type.ARRAY) and any(
     857                    array_elem.is_type(exp.DataType.Type.STRUCT)
     858                    for array_elem in unnest_expr._type.expressions
     859                ):
     860                    unnest.set("explode_array", True)
     861
     862            return unnest
     863
     864        def _parse_make_interval(self) -> exp.MakeInterval:
     865            expr = exp.MakeInterval()
     866
     867            for arg_key in expr.arg_types:
     868                value = self._parse_lambda()
     869
     870                if not value:
     871                    break
     872
     873                # Non-named arguments are filled sequentially, (optionally) followed by named arguments
     874                # that can appear in any order e.g MAKE_INTERVAL(1, minute => 5, day => 2)
     875                if isinstance(value, exp.Kwarg):
     876                    arg_key = value.this.name
     877
     878                expr.set(arg_key, value)
     879
     880                self._match(TokenType.COMMA)
     881
     882            return expr
     883
     884        def _parse_features_at_time(self) -> exp.FeaturesAtTime:
     885            expr = self.expression(
     886                exp.FeaturesAtTime,
     887                this=(self._match(TokenType.TABLE) and self._parse_table())
     888                or self._parse_select(nested=True),
     889            )
     890
     891            while self._match(TokenType.COMMA):
     892                arg = self._parse_lambda()
     893
     894                # Get the LHS of the Kwarg and set the arg to that value, e.g
     895                # "num_rows => 1" sets the expr's `num_rows` arg
     896                if arg:
     897                    expr.set(arg.this.name, arg)
     898
     899            return expr
     900
     901        def _parse_export_data(self) -> exp.Export:
     902            self._match_text_seq("DATA")
     903
     904            return self.expression(
     905                exp.Export,
     906                connection=self._match_text_seq("WITH", "CONNECTION") and self._parse_table_parts(),
     907                options=self._parse_properties(),
     908                this=self._match_text_seq("AS") and self._parse_select(),
     909            )
     910
     911    class Generator(generator.Generator):
     912        INTERVAL_ALLOWS_PLURAL_FORM = False
     913        JOIN_HINTS = False
     914        QUERY_HINTS = False
     915        TABLE_HINTS = False
     916        LIMIT_FETCH = "LIMIT"
     917        RENAME_TABLE_WITH_DB = False
     918        NVL2_SUPPORTED = False
     919        UNNEST_WITH_ORDINALITY = False
     920        COLLATE_IS_FUNC = True
     921        LIMIT_ONLY_LITERALS = True
     922        SUPPORTS_TABLE_ALIAS_COLUMNS = False
     923        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
     924        JSON_KEY_VALUE_PAIR_SEP = ","
     925        NULL_ORDERING_SUPPORTED = False
     926        IGNORE_NULLS_IN_FUNC = True
     927        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
     928        CAN_IMPLEMENT_ARRAY_ANY = True
     929        SUPPORTS_TO_NUMBER = False
     930        NAMED_PLACEHOLDER_TOKEN = "@"
     931        HEX_FUNC = "TO_HEX"
     932        WITH_PROPERTIES_PREFIX = "OPTIONS"
     933        SUPPORTS_EXPLODING_PROJECTIONS = False
     934        EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE = False
     935        SUPPORTS_UNIX_SECONDS = True
     936
     937        TRANSFORMS = {
     938            **generator.Generator.TRANSFORMS,
     939            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
     940            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
     941            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
     942            exp.Array: inline_array_unless_query,
     943            exp.ArrayContains: _array_contains_sql,
     944            exp.ArrayFilter: filter_array_using_unnest,
     945            exp.ArrayRemove: filter_array_using_unnest,
     946            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
     947            exp.CollateProperty: lambda self, e: (
     948                f"DEFAULT COLLATE {self.sql(e, 'this')}"
     949                if e.args.get("default")
     950                else f"COLLATE {self.sql(e, 'this')}"
     951            ),
     952            exp.Commit: lambda *_: "COMMIT TRANSACTION",
     953            exp.CountIf: rename_func("COUNTIF"),
     954            exp.Create: _create_sql,
     955            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
     956            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
     957            exp.DateDiff: lambda self, e: self.func(
     958                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
     959            ),
     960            exp.DateFromParts: rename_func("DATE"),
     961            exp.DateStrToDate: datestrtodate_sql,
     962            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
     963            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
     964            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
     965            exp.DateTrunc: lambda self, e: self.func(
     966                "DATE_TRUNC", e.this, e.text("unit"), e.args.get("zone")
     967            ),
     968            exp.FromTimeZone: lambda self, e: self.func(
     969                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
     970            ),
     971            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
     972            exp.GroupConcat: lambda self, e: groupconcat_sql(
     973                self, e, func_name="STRING_AGG", within_group=False
     974            ),
     975            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
     976            exp.HexString: lambda self, e: self.hexstring_sql(e, binary_function_repr="FROM_HEX"),
     977            exp.If: if_sql(false_value="NULL"),
     978            exp.ILike: no_ilike_sql,
     979            exp.IntDiv: rename_func("DIV"),
     980            exp.Int64: rename_func("INT64"),
     981            exp.JSONExtract: _json_extract_sql,
     982            exp.JSONExtractArray: _json_extract_sql,
     983            exp.JSONExtractScalar: _json_extract_sql,
     984            exp.JSONFormat: rename_func("TO_JSON_STRING"),
     985            exp.Levenshtein: _levenshtein_sql,
     986            exp.Max: max_or_greatest,
     987            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
     988            exp.MD5Digest: rename_func("MD5"),
     989            exp.Min: min_or_least,
     990            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
     991            exp.RegexpExtract: lambda self, e: self.func(
     992                "REGEXP_EXTRACT",
     993                e.this,
     994                e.expression,
     995                e.args.get("position"),
     996                e.args.get("occurrence"),
     997            ),
     998            exp.RegexpExtractAll: lambda self, e: self.func(
     999                "REGEXP_EXTRACT_ALL", e.this, e.expression
    1000            ),
    1001            exp.RegexpReplace: regexp_replace_sql,
    1002            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    1003            exp.ReturnsProperty: _returnsproperty_sql,
    1004            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    1005            exp.Select: transforms.preprocess(
    1006                [
    1007                    transforms.explode_projection_to_unnest(),
    1008                    transforms.unqualify_unnest,
    1009                    transforms.eliminate_distinct_on,
    1010                    _alias_ordered_group,
    1011                    transforms.eliminate_semi_and_anti_joins,
    1012                ]
    1013            ),
    1014            exp.SHA: rename_func("SHA1"),
    1015            exp.SHA2: sha256_sql,
    1016            exp.StabilityProperty: lambda self, e: (
    1017                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    1018            ),
    1019            exp.String: rename_func("STRING"),
    1020            exp.StrPosition: lambda self, e: (
    1021                strposition_sql(
    1022                    self, e, func_name="INSTR", supports_position=True, supports_occurrence=True
    1023                )
    1024            ),
    1025            exp.StrToDate: _str_to_datetime_sql,
    1026            exp.StrToTime: _str_to_datetime_sql,
    1027            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    1028            exp.TimeFromParts: rename_func("TIME"),
    1029            exp.TimestampFromParts: rename_func("DATETIME"),
    1030            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    1031            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    1032            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    1033            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    1034            exp.TimeStrToTime: timestrtotime_sql,
    1035            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    1036            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    1037            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    1038            exp.TsOrDsToTime: rename_func("TIME"),
    1039            exp.TsOrDsToDatetime: rename_func("DATETIME"),
    1040            exp.TsOrDsToTimestamp: rename_func("TIMESTAMP"),
    1041            exp.Unhex: rename_func("FROM_HEX"),
    1042            exp.UnixDate: rename_func("UNIX_DATE"),
    1043            exp.UnixToTime: _unix_to_time_sql,
    1044            exp.Uuid: lambda *_: "GENERATE_UUID()",
    1045            exp.Values: _derived_table_values_to_unnest,
    1046            exp.VariancePop: rename_func("VAR_POP"),
    1047            exp.SafeDivide: rename_func("SAFE_DIVIDE"),
    1048        }
    1049
    1050        SUPPORTED_JSON_PATH_PARTS = {
    1051            exp.JSONPathKey,
    1052            exp.JSONPathRoot,
    1053            exp.JSONPathSubscript,
    1054        }
    1055
    1056        TYPE_MAPPING = {
    1057            **generator.Generator.TYPE_MAPPING,
    1058            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    1059            exp.DataType.Type.BIGINT: "INT64",
    1060            exp.DataType.Type.BINARY: "BYTES",
    1061            exp.DataType.Type.BLOB: "BYTES",
    1062            exp.DataType.Type.BOOLEAN: "BOOL",
    1063            exp.DataType.Type.CHAR: "STRING",
    1064            exp.DataType.Type.DECIMAL: "NUMERIC",
    1065            exp.DataType.Type.DOUBLE: "FLOAT64",
    1066            exp.DataType.Type.FLOAT: "FLOAT64",
    1067            exp.DataType.Type.INT: "INT64",
    1068            exp.DataType.Type.NCHAR: "STRING",
    1069            exp.DataType.Type.NVARCHAR: "STRING",
    1070            exp.DataType.Type.SMALLINT: "INT64",
    1071            exp.DataType.Type.TEXT: "STRING",
    1072            exp.DataType.Type.TIMESTAMP: "DATETIME",
    1073            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
    1074            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    1075            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    1076            exp.DataType.Type.TINYINT: "INT64",
    1077            exp.DataType.Type.ROWVERSION: "BYTES",
    1078            exp.DataType.Type.UUID: "STRING",
    1079            exp.DataType.Type.VARBINARY: "BYTES",
    1080            exp.DataType.Type.VARCHAR: "STRING",
    1081            exp.DataType.Type.VARIANT: "ANY TYPE",
    1082        }
    1083
    1084        PROPERTIES_LOCATION = {
    1085            **generator.Generator.PROPERTIES_LOCATION,
    1086            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    1087            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    1088        }
    1089
    1090        # WINDOW comes after QUALIFY
    1091        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    1092        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    1093            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    1094            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    1095        }
    1096
    1097        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    1098        RESERVED_KEYWORDS = {
    1099            "all",
    1100            "and",
    1101            "any",
    1102            "array",
    1103            "as",
    1104            "asc",
    1105            "assert_rows_modified",
    1106            "at",
    1107            "between",
    1108            "by",
    1109            "case",
    1110            "cast",
    1111            "collate",
    1112            "contains",
    1113            "create",
    1114            "cross",
    1115            "cube",
    1116            "current",
    1117            "default",
    1118            "define",
    1119            "desc",
    1120            "distinct",
    1121            "else",
    1122            "end",
    1123            "enum",
    1124            "escape",
    1125            "except",
    1126            "exclude",
    1127            "exists",
    1128            "extract",
    1129            "false",
    1130            "fetch",
    1131            "following",
    1132            "for",
    1133            "from",
    1134            "full",
    1135            "group",
    1136            "grouping",
    1137            "groups",
    1138            "hash",
    1139            "having",
    1140            "if",
    1141            "ignore",
    1142            "in",
    1143            "inner",
    1144            "intersect",
    1145            "interval",
    1146            "into",
    1147            "is",
    1148            "join",
    1149            "lateral",
    1150            "left",
    1151            "like",
    1152            "limit",
    1153            "lookup",
    1154            "merge",
    1155            "natural",
    1156            "new",
    1157            "no",
    1158            "not",
    1159            "null",
    1160            "nulls",
    1161            "of",
    1162            "on",
    1163            "or",
    1164            "order",
    1165            "outer",
    1166            "over",
    1167            "partition",
    1168            "preceding",
    1169            "proto",
    1170            "qualify",
    1171            "range",
    1172            "recursive",
    1173            "respect",
    1174            "right",
    1175            "rollup",
    1176            "rows",
    1177            "select",
    1178            "set",
    1179            "some",
    1180            "struct",
    1181            "tablesample",
    1182            "then",
    1183            "to",
    1184            "treat",
    1185            "true",
    1186            "unbounded",
    1187            "union",
    1188            "unnest",
    1189            "using",
    1190            "when",
    1191            "where",
    1192            "window",
    1193            "with",
    1194            "within",
    1195        }
    1196
    1197        def mod_sql(self, expression: exp.Mod) -> str:
    1198            this = expression.this
    1199            expr = expression.expression
    1200            return self.func(
    1201                "MOD",
    1202                this.unnest() if isinstance(this, exp.Paren) else this,
    1203                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    1204            )
    1205
    1206        def column_parts(self, expression: exp.Column) -> str:
    1207            if expression.meta.get("quoted_column"):
    1208                # If a column reference is of the form `dataset.table`.name, we need
    1209                # to preserve the quoted table path, otherwise the reference breaks
    1210                table_parts = ".".join(p.name for p in expression.parts[:-1])
    1211                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    1212                return f"{table_path}.{self.sql(expression, 'this')}"
    1213
    1214            return super().column_parts(expression)
    1215
    1216        def table_parts(self, expression: exp.Table) -> str:
    1217            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    1218            # we need to make sure the correct quoting is used in each case.
    1219            #
    1220            # For example, if there is a CTE x that clashes with a schema name, then the former will
    1221            # return the table y in that schema, whereas the latter will return the CTE's y column:
    1222            #
    1223            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    1224            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    1225            if expression.meta.get("quoted_table"):
    1226                table_parts = ".".join(p.name for p in expression.parts)
    1227                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    1228
    1229            return super().table_parts(expression)
    1230
    1231        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    1232            this = expression.this
    1233            if isinstance(this, exp.TsOrDsToDatetime):
    1234                func_name = "FORMAT_DATETIME"
    1235            elif isinstance(this, exp.TsOrDsToTimestamp):
    1236                func_name = "FORMAT_TIMESTAMP"
    1237            else:
    1238                func_name = "FORMAT_DATE"
    1239
    1240            time_expr = (
    1241                this
    1242                if isinstance(this, (exp.TsOrDsToDatetime, exp.TsOrDsToTimestamp, exp.TsOrDsToDate))
    1243                else expression
    1244            )
    1245            return self.func(
    1246                func_name, self.format_time(expression), time_expr.this, expression.args.get("zone")
    1247            )
    1248
    1249        def eq_sql(self, expression: exp.EQ) -> str:
    1250            # Operands of = cannot be NULL in BigQuery
    1251            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    1252                if not isinstance(expression.parent, exp.Update):
    1253                    return "NULL"
    1254
    1255            return self.binary(expression, "=")
    1256
    1257        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1258            parent = expression.parent
    1259
    1260            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    1261            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    1262            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    1263                return self.func(
    1264                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    1265                )
    1266
    1267            return super().attimezone_sql(expression)
    1268
    1269        def trycast_sql(self, expression: exp.TryCast) -> str:
    1270            return self.cast_sql(expression, safe_prefix="SAFE_")
    1271
    1272        def bracket_sql(self, expression: exp.Bracket) -> str:
    1273            this = expression.this
    1274            expressions = expression.expressions
    1275
    1276            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    1277                arg = expressions[0]
    1278                if arg.type is None:
    1279                    from sqlglot.optimizer.annotate_types import annotate_types
    1280
    1281                    arg = annotate_types(arg, dialect=self.dialect)
    1282
    1283                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    1284                    # BQ doesn't support bracket syntax with string values for structs
    1285                    return f"{self.sql(this)}.{arg.name}"
    1286
    1287            expressions_sql = self.expressions(expression, flat=True)
    1288            offset = expression.args.get("offset")
    1289
    1290            if offset == 0:
    1291                expressions_sql = f"OFFSET({expressions_sql})"
    1292            elif offset == 1:
    1293                expressions_sql = f"ORDINAL({expressions_sql})"
    1294            elif offset is not None:
    1295                self.unsupported(f"Unsupported array offset: {offset}")
    1296
    1297            if expression.args.get("safe"):
    1298                expressions_sql = f"SAFE_{expressions_sql}"
    1299
    1300            return f"{self.sql(this)}[{expressions_sql}]"
    1301
    1302        def in_unnest_op(self, expression: exp.Unnest) -> str:
    1303            return self.sql(expression)
    1304
    1305        def version_sql(self, expression: exp.Version) -> str:
    1306            if expression.name == "TIMESTAMP":
    1307                expression.set("this", "SYSTEM_TIME")
    1308            return super().version_sql(expression)
    1309
    1310        def contains_sql(self, expression: exp.Contains) -> str:
    1311            this = expression.this
    1312            expr = expression.expression
    1313
    1314            if isinstance(this, exp.Lower) and isinstance(expr, exp.Lower):
    1315                this = this.this
    1316                expr = expr.this
    1317
    1318            return self.func("CONTAINS_SUBSTR", this, expr)
    1319
    1320        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1321            this = expression.this
    1322
    1323            # This ensures that inline type-annotated ARRAY literals like ARRAY<INT64>[1, 2, 3]
    1324            # are roundtripped unaffected. The inner check excludes ARRAY(SELECT ...) expressions,
    1325            # because they aren't literals and so the above syntax is invalid BigQuery.
    1326            if isinstance(this, exp.Array):
    1327                elem = seq_get(this.expressions, 0)
    1328                if not (elem and elem.find(exp.Query)):
    1329                    return f"{self.sql(expression, 'to')}{self.sql(this)}"
    1330
    1331            return super().cast_sql(expression, safe_prefix=safe_prefix)

logger = <Logger sqlglot (WARNING)>
JSON_EXTRACT_TYPE = typing.Union[sqlglot.expressions.JSONExtract, sqlglot.expressions.JSONExtractScalar, sqlglot.expressions.JSONExtractArray]
DQUOTES_ESCAPING_JSON_FUNCTIONS = ('JSON_QUERY', 'JSON_VALUE', 'JSON_QUERY_ARRAY')
class BigQuery(sqlglot.dialects.dialect.Dialect): View Source

     368class BigQuery(Dialect):
     369    WEEK_OFFSET = -1
     370    UNNEST_COLUMN_ONLY = True
     371    SUPPORTS_USER_DEFINED_TYPES = False
     372    SUPPORTS_SEMI_ANTI_JOIN = False
     373    LOG_BASE_FIRST = False
     374    HEX_LOWERCASE = True
     375    FORCE_EARLY_ALIAS_REF_EXPANSION = True
     376    PRESERVE_ORIGINAL_NAMES = True
     377    HEX_STRING_IS_INTEGER_TYPE = True
     378
     379    # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#case_sensitivity
     380    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
     381
     382    # bigquery udfs are case sensitive
     383    NORMALIZE_FUNCTIONS = False
     384
     385    # https://cloud.google.com/bigquery/docs/reference/standard-sql/format-elements#format_elements_date_time
     386    TIME_MAPPING = {
     387        "%D": "%m/%d/%y",
     388        "%E6S": "%S.%f",
     389        "%e": "%-d",
     390    }
     391
     392    FORMAT_MAPPING = {
     393        "DD": "%d",
     394        "MM": "%m",
     395        "MON": "%b",
     396        "MONTH": "%B",
     397        "YYYY": "%Y",
     398        "YY": "%y",
     399        "HH": "%I",
     400        "HH12": "%I",
     401        "HH24": "%H",
     402        "MI": "%M",
     403        "SS": "%S",
     404        "SSSSS": "%f",
     405        "TZH": "%z",
     406    }
     407
     408    # The _PARTITIONTIME and _PARTITIONDATE pseudo-columns are not returned by a SELECT * statement
     409    # https://cloud.google.com/bigquery/docs/querying-partitioned-tables#query_an_ingestion-time_partitioned_table
     410    PSEUDOCOLUMNS = {"_PARTITIONTIME", "_PARTITIONDATE"}
     411
     412    # All set operations require either a DISTINCT or ALL specifier
     413    SET_OP_DISTINCT_BY_DEFAULT = dict.fromkeys((exp.Except, exp.Intersect, exp.Union), None)
     414
     415    # BigQuery maps Type.TIMESTAMP to DATETIME, so we need to amend the inferred types
     416    TYPE_TO_EXPRESSIONS = {
     417        **Dialect.TYPE_TO_EXPRESSIONS,
     418        exp.DataType.Type.TIMESTAMPTZ: Dialect.TYPE_TO_EXPRESSIONS[exp.DataType.Type.TIMESTAMP],
     419    }
     420    TYPE_TO_EXPRESSIONS.pop(exp.DataType.Type.TIMESTAMP)
     421
     422    ANNOTATORS = {
     423        **Dialect.ANNOTATORS,
     424        **{
     425            expr_type: annotate_with_type_lambda(data_type)
     426            for data_type, expressions in TYPE_TO_EXPRESSIONS.items()
     427            for expr_type in expressions
     428        },
     429        **{
     430            expr_type: lambda self, e: _annotate_math_functions(self, e)
     431            for expr_type in (exp.Floor, exp.Ceil, exp.Log, exp.Ln, exp.Sqrt, exp.Exp, exp.Round)
     432        },
     433        **{
     434            expr_type: lambda self, e: self._annotate_by_args(e, "this")
     435            for expr_type in (
     436                exp.Left,
     437                exp.Right,
     438                exp.Lower,
     439                exp.Upper,
     440                exp.Pad,
     441                exp.Trim,
     442                exp.RegexpExtract,
     443                exp.RegexpReplace,
     444                exp.Repeat,
     445                exp.Substring,
     446            )
     447        },
     448        exp.Concat: _annotate_concat,
     449        exp.Sign: lambda self, e: self._annotate_by_args(e, "this"),
     450        exp.Split: lambda self, e: self._annotate_by_args(e, "this", array=True),
     451    }
     452
     453    def normalize_identifier(self, expression: E) -> E:
     454        if (
     455            isinstance(expression, exp.Identifier)
     456            and self.normalization_strategy is NormalizationStrategy.CASE_INSENSITIVE
     457        ):
     458            parent = expression.parent
     459            while isinstance(parent, exp.Dot):
     460                parent = parent.parent
     461
     462            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
     463            # by default. The following check uses a heuristic to detect tables based on whether
     464            # they are qualified. This should generally be correct, because tables in BigQuery
     465            # must be qualified with at least a dataset, unless @@dataset_id is set.
     466            case_sensitive = (
     467                isinstance(parent, exp.UserDefinedFunction)
     468                or (
     469                    isinstance(parent, exp.Table)
     470                    and parent.db
     471                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
     472                )
     473                or expression.meta.get("is_table")
     474            )
     475            if not case_sensitive:
     476                expression.set("this", expression.this.lower())
     477
     478            return t.cast(E, expression)
     479
     480        return super().normalize_identifier(expression)
     481
     482    class Tokenizer(tokens.Tokenizer):
     483        QUOTES = ["'", '"', '"""', "'''"]
     484        COMMENTS = ["--", "#", ("/*", "*/")]
     485        IDENTIFIERS = ["`"]
     486        STRING_ESCAPES = ["\\"]
     487
     488        HEX_STRINGS = [("0x", ""), ("0X", "")]
     489
     490        BYTE_STRINGS = [
     491            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
     492        ]
     493
     494        RAW_STRINGS = [
     495            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
     496        ]
     497
     498        NESTED_COMMENTS = False
     499
     500        KEYWORDS = {
     501            **tokens.Tokenizer.KEYWORDS,
     502            "ANY TYPE": TokenType.VARIANT,
     503            "BEGIN": TokenType.COMMAND,
     504            "BEGIN TRANSACTION": TokenType.BEGIN,
     505            "BYTEINT": TokenType.INT,
     506            "BYTES": TokenType.BINARY,
     507            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
     508            "DATETIME": TokenType.TIMESTAMP,
     509            "DECLARE": TokenType.COMMAND,
     510            "ELSEIF": TokenType.COMMAND,
     511            "EXCEPTION": TokenType.COMMAND,
     512            "EXPORT": TokenType.EXPORT,
     513            "FLOAT64": TokenType.DOUBLE,
     514            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
     515            "MODEL": TokenType.MODEL,
     516            "NOT DETERMINISTIC": TokenType.VOLATILE,
     517            "RECORD": TokenType.STRUCT,
     518            "TIMESTAMP": TokenType.TIMESTAMPTZ,
     519        }
     520        KEYWORDS.pop("DIV")
     521        KEYWORDS.pop("VALUES")
     522        KEYWORDS.pop("/*+")
     523
     524    class Parser(parser.Parser):
     525        PREFIXED_PIVOT_COLUMNS = True
     526        LOG_DEFAULTS_TO_LN = True
     527        SUPPORTS_IMPLICIT_UNNEST = True
     528
     529        # BigQuery does not allow ASC/DESC to be used as an identifier
     530        ID_VAR_TOKENS = parser.Parser.ID_VAR_TOKENS - {TokenType.ASC, TokenType.DESC}
     531        ALIAS_TOKENS = parser.Parser.ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     532        TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     533        COMMENT_TABLE_ALIAS_TOKENS = parser.Parser.COMMENT_TABLE_ALIAS_TOKENS - {
     534            TokenType.ASC,
     535            TokenType.DESC,
     536        }
     537        UPDATE_ALIAS_TOKENS = parser.Parser.UPDATE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
     538
     539        FUNCTIONS = {
     540            **parser.Parser.FUNCTIONS,
     541            "CONTAINS_SUBSTR": _build_contains_substring,
     542            "DATE": _build_date,
     543            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     544            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     545            "DATE_TRUNC": lambda args: exp.DateTrunc(
     546                unit=exp.Literal.string(str(seq_get(args, 1))),
     547                this=seq_get(args, 0),
     548                zone=seq_get(args, 2),
     549            ),
     550            "DATETIME": _build_datetime,
     551            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
     552            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
     553            "DIV": binary_from_function(exp.IntDiv),
     554            "EDIT_DISTANCE": _build_levenshtein,
     555            "FORMAT_DATE": _build_format_time(exp.TsOrDsToDate),
     556            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
     557            "JSON_EXTRACT_SCALAR": _build_extract_json_with_default_path(exp.JSONExtractScalar),
     558            "JSON_EXTRACT_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
     559            "JSON_QUERY": parser.build_extract_json_with_path(exp.JSONExtract),
     560            "JSON_QUERY_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
     561            "JSON_VALUE": _build_extract_json_with_default_path(exp.JSONExtractScalar),
     562            "JSON_VALUE_ARRAY": _build_extract_json_with_default_path(exp.JSONValueArray),
     563            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
     564            "MD5": exp.MD5Digest.from_arg_list,
     565            "TO_HEX": _build_to_hex,
     566            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
     567                [seq_get(args, 1), seq_get(args, 0)]
     568            ),
     569            "PARSE_TIMESTAMP": _build_parse_timestamp,
     570            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
     571            "REGEXP_EXTRACT": _build_regexp_extract(exp.RegexpExtract),
     572            "REGEXP_SUBSTR": _build_regexp_extract(exp.RegexpExtract),
     573            "REGEXP_EXTRACT_ALL": _build_regexp_extract(
     574                exp.RegexpExtractAll, default_group=exp.Literal.number(0)
     575            ),
     576            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
     577            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
     578            "SPLIT": lambda args: exp.Split(
     579                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
     580                this=seq_get(args, 0),
     581                expression=seq_get(args, 1) or exp.Literal.string(","),
     582            ),
     583            "STRPOS": exp.StrPosition.from_arg_list,
     584            "TIME": _build_time,
     585            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
     586            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
     587            "TIMESTAMP": _build_timestamp,
     588            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
     589            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
     590            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
     591                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
     592            ),
     593            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
     594                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
     595            ),
     596            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
     597            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
     598            "FORMAT_DATETIME": _build_format_time(exp.TsOrDsToDatetime),
     599            "FORMAT_TIMESTAMP": _build_format_time(exp.TsOrDsToTimestamp),
     600        }
     601
     602        FUNCTION_PARSERS = {
     603            **parser.Parser.FUNCTION_PARSERS,
     604            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
     605            "MAKE_INTERVAL": lambda self: self._parse_make_interval(),
     606            "FEATURES_AT_TIME": lambda self: self._parse_features_at_time(),
     607        }
     608        FUNCTION_PARSERS.pop("TRIM")
     609
     610        NO_PAREN_FUNCTIONS = {
     611            **parser.Parser.NO_PAREN_FUNCTIONS,
     612            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
     613        }
     614
     615        NESTED_TYPE_TOKENS = {
     616            *parser.Parser.NESTED_TYPE_TOKENS,
     617            TokenType.TABLE,
     618        }
     619
     620        PROPERTY_PARSERS = {
     621            **parser.Parser.PROPERTY_PARSERS,
     622            "NOT DETERMINISTIC": lambda self: self.expression(
     623                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
     624            ),
     625            "OPTIONS": lambda self: self._parse_with_property(),
     626        }
     627
     628        CONSTRAINT_PARSERS = {
     629            **parser.Parser.CONSTRAINT_PARSERS,
     630            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
     631        }
     632
     633        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
     634        RANGE_PARSERS.pop(TokenType.OVERLAPS)
     635
     636        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
     637
     638        DASHED_TABLE_PART_FOLLOW_TOKENS = {TokenType.DOT, TokenType.L_PAREN, TokenType.R_PAREN}
     639
     640        STATEMENT_PARSERS = {
     641            **parser.Parser.STATEMENT_PARSERS,
     642            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
     643            TokenType.END: lambda self: self._parse_as_command(self._prev),
     644            TokenType.FOR: lambda self: self._parse_for_in(),
     645            TokenType.EXPORT: lambda self: self._parse_export_data(),
     646        }
     647
     648        BRACKET_OFFSETS = {
     649            "OFFSET": (0, False),
     650            "ORDINAL": (1, False),
     651            "SAFE_OFFSET": (0, True),
     652            "SAFE_ORDINAL": (1, True),
     653        }
     654
     655        def _parse_for_in(self) -> exp.ForIn:
     656            this = self._parse_range()
     657            self._match_text_seq("DO")
     658            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
     659
     660        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
     661            this = super()._parse_table_part(schema=schema) or self._parse_number()
     662
     663            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
     664            if isinstance(this, exp.Identifier):
     665                table_name = this.name
     666                while self._match(TokenType.DASH, advance=False) and self._next:
     667                    start = self._curr
     668                    while self._is_connected() and not self._match_set(
     669                        self.DASHED_TABLE_PART_FOLLOW_TOKENS, advance=False
     670                    ):
     671                        self._advance()
     672
     673                    if start == self._curr:
     674                        break
     675
     676                    table_name += self._find_sql(start, self._prev)
     677
     678                this = exp.Identifier(
     679                    this=table_name, quoted=this.args.get("quoted")
     680                ).update_positions(this)
     681            elif isinstance(this, exp.Literal):
     682                table_name = this.name
     683
     684                if self._is_connected() and self._parse_var(any_token=True):
     685                    table_name += self._prev.text
     686
     687                this = exp.Identifier(this=table_name, quoted=True).update_positions(this)
     688
     689            return this
     690
     691        def _parse_table_parts(
     692            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
     693        ) -> exp.Table:
     694            table = super()._parse_table_parts(
     695                schema=schema, is_db_reference=is_db_reference, wildcard=True
     696            )
     697
     698            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
     699            if not table.catalog:
     700                if table.db:
     701                    previous_db = table.args["db"]
     702                    parts = table.db.split(".")
     703                    if len(parts) == 2 and not table.args["db"].quoted:
     704                        table.set(
     705                            "catalog", exp.Identifier(this=parts[0]).update_positions(previous_db)
     706                        )
     707                        table.set("db", exp.Identifier(this=parts[1]).update_positions(previous_db))
     708                else:
     709                    previous_this = table.this
     710                    parts = table.name.split(".")
     711                    if len(parts) == 2 and not table.this.quoted:
     712                        table.set(
     713                            "db", exp.Identifier(this=parts[0]).update_positions(previous_this)
     714                        )
     715                        table.set(
     716                            "this", exp.Identifier(this=parts[1]).update_positions(previous_this)
     717                        )
     718
     719            if isinstance(table.this, exp.Identifier) and any("." in p.name for p in table.parts):
     720                alias = table.this
     721                catalog, db, this, *rest = (
     722                    exp.to_identifier(p, quoted=True)
     723                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
     724                )
     725
     726                for part in (catalog, db, this):
     727                    if part:
     728                        part.update_positions(table.this)
     729
     730                if rest and this:
     731                    this = exp.Dot.build([this, *rest])  # type: ignore
     732
     733                table = exp.Table(
     734                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
     735                )
     736                table.meta["quoted_table"] = True
     737            else:
     738                alias = None
     739
     740            # The `INFORMATION_SCHEMA` views in BigQuery need to be qualified by a region or
     741            # dataset, so if the project identifier is omitted we need to fix the ast so that
     742            # the `INFORMATION_SCHEMA.X` bit is represented as a single (quoted) Identifier.
     743            # Otherwise, we wouldn't correctly qualify a `Table` node that references these
     744            # views, because it would seem like the "catalog" part is set, when it'd actually
     745            # be the region/dataset. Merging the two identifiers into a single one is done to
     746            # avoid producing a 4-part Table reference, which would cause issues in the schema
     747            # module, when there are 3-part table names mixed with information schema views.
     748            #
     749            # See: https://cloud.google.com/bigquery/docs/information-schema-intro#syntax
     750            table_parts = table.parts
     751            if len(table_parts) > 1 and table_parts[-2].name.upper() == "INFORMATION_SCHEMA":
     752                # We need to alias the table here to avoid breaking existing qualified columns.
     753                # This is expected to be safe, because if there's an actual alias coming up in
     754                # the token stream, it will overwrite this one. If there isn't one, we are only
     755                # exposing the name that can be used to reference the view explicitly (a no-op).
     756                exp.alias_(
     757                    table,
     758                    t.cast(exp.Identifier, alias or table_parts[-1]),
     759                    table=True,
     760                    copy=False,
     761                )
     762
     763                info_schema_view = f"{table_parts[-2].name}.{table_parts[-1].name}"
     764                new_this = exp.Identifier(this=info_schema_view, quoted=True).update_positions(
     765                    line=table_parts[-2].meta.get("line"),
     766                    col=table_parts[-1].meta.get("col"),
     767                    start=table_parts[-2].meta.get("start"),
     768                    end=table_parts[-1].meta.get("end"),
     769                )
     770                table.set("this", new_this)
     771                table.set("db", seq_get(table_parts, -3))
     772                table.set("catalog", seq_get(table_parts, -4))
     773
     774            return table
     775
     776        def _parse_column(self) -> t.Optional[exp.Expression]:
     777            column = super()._parse_column()
     778            if isinstance(column, exp.Column):
     779                parts = column.parts
     780                if any("." in p.name for p in parts):
     781                    catalog, db, table, this, *rest = (
     782                        exp.to_identifier(p, quoted=True)
     783                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
     784                    )
     785
     786                    if rest and this:
     787                        this = exp.Dot.build([this, *rest])  # type: ignore
     788
     789                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
     790                    column.meta["quoted_column"] = True
     791
     792            return column
     793
     794        @t.overload
     795        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
     796
     797        @t.overload
     798        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
     799
     800        def _parse_json_object(self, agg=False):
     801            json_object = super()._parse_json_object()
     802            array_kv_pair = seq_get(json_object.expressions, 0)
     803
     804            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
     805            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
     806            if (
     807                array_kv_pair
     808                and isinstance(array_kv_pair.this, exp.Array)
     809                and isinstance(array_kv_pair.expression, exp.Array)
     810            ):
     811                keys = array_kv_pair.this.expressions
     812                values = array_kv_pair.expression.expressions
     813
     814                json_object.set(
     815                    "expressions",
     816                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
     817                )
     818
     819            return json_object
     820
     821        def _parse_bracket(
     822            self, this: t.Optional[exp.Expression] = None
     823        ) -> t.Optional[exp.Expression]:
     824            bracket = super()._parse_bracket(this)
     825
     826            if this is bracket:
     827                return bracket
     828
     829            if isinstance(bracket, exp.Bracket):
     830                for expression in bracket.expressions:
     831                    name = expression.name.upper()
     832
     833                    if name not in self.BRACKET_OFFSETS:
     834                        break
     835
     836                    offset, safe = self.BRACKET_OFFSETS[name]
     837                    bracket.set("offset", offset)
     838                    bracket.set("safe", safe)
     839                    expression.replace(expression.expressions[0])
     840
     841            return bracket
     842
     843        def _parse_unnest(self, with_alias: bool = True) -> t.Optional[exp.Unnest]:
     844            unnest = super()._parse_unnest(with_alias=with_alias)
     845
     846            if not unnest:
     847                return None
     848
     849            unnest_expr = seq_get(unnest.expressions, 0)
     850            if unnest_expr:
     851                from sqlglot.optimizer.annotate_types import annotate_types
     852
     853                unnest_expr = annotate_types(unnest_expr, dialect=self.dialect)
     854
     855                # Unnesting a nested array (i.e array of structs) explodes the top-level struct fields,
     856                # in contrast to other dialects such as DuckDB which flattens only the array by default
     857                if unnest_expr.is_type(exp.DataType.Type.ARRAY) and any(
     858                    array_elem.is_type(exp.DataType.Type.STRUCT)
     859                    for array_elem in unnest_expr._type.expressions
     860                ):
     861                    unnest.set("explode_array", True)
     862
     863            return unnest
     864
     865        def _parse_make_interval(self) -> exp.MakeInterval:
     866            expr = exp.MakeInterval()
     867
     868            for arg_key in expr.arg_types:
     869                value = self._parse_lambda()
     870
     871                if not value:
     872                    break
     873
     874                # Non-named arguments are filled sequentially, (optionally) followed by named arguments
     875                # that can appear in any order e.g MAKE_INTERVAL(1, minute => 5, day => 2)
     876                if isinstance(value, exp.Kwarg):
     877                    arg_key = value.this.name
     878
     879                expr.set(arg_key, value)
     880
     881                self._match(TokenType.COMMA)
     882
     883            return expr
     884
     885        def _parse_features_at_time(self) -> exp.FeaturesAtTime:
     886            expr = self.expression(
     887                exp.FeaturesAtTime,
     888                this=(self._match(TokenType.TABLE) and self._parse_table())
     889                or self._parse_select(nested=True),
     890            )
     891
     892            while self._match(TokenType.COMMA):
     893                arg = self._parse_lambda()
     894
     895                # Get the LHS of the Kwarg and set the arg to that value, e.g
     896                # "num_rows => 1" sets the expr's `num_rows` arg
     897                if arg:
     898                    expr.set(arg.this.name, arg)
     899
     900            return expr
     901
     902        def _parse_export_data(self) -> exp.Export:
     903            self._match_text_seq("DATA")
     904
     905            return self.expression(
     906                exp.Export,
     907                connection=self._match_text_seq("WITH", "CONNECTION") and self._parse_table_parts(),
     908                options=self._parse_properties(),
     909                this=self._match_text_seq("AS") and self._parse_select(),
     910            )
     911
     912    class Generator(generator.Generator):
     913        INTERVAL_ALLOWS_PLURAL_FORM = False
     914        JOIN_HINTS = False
     915        QUERY_HINTS = False
     916        TABLE_HINTS = False
     917        LIMIT_FETCH = "LIMIT"
     918        RENAME_TABLE_WITH_DB = False
     919        NVL2_SUPPORTED = False
     920        UNNEST_WITH_ORDINALITY = False
     921        COLLATE_IS_FUNC = True
     922        LIMIT_ONLY_LITERALS = True
     923        SUPPORTS_TABLE_ALIAS_COLUMNS = False
     924        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
     925        JSON_KEY_VALUE_PAIR_SEP = ","
     926        NULL_ORDERING_SUPPORTED = False
     927        IGNORE_NULLS_IN_FUNC = True
     928        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
     929        CAN_IMPLEMENT_ARRAY_ANY = True
     930        SUPPORTS_TO_NUMBER = False
     931        NAMED_PLACEHOLDER_TOKEN = "@"
     932        HEX_FUNC = "TO_HEX"
     933        WITH_PROPERTIES_PREFIX = "OPTIONS"
     934        SUPPORTS_EXPLODING_PROJECTIONS = False
     935        EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE = False
     936        SUPPORTS_UNIX_SECONDS = True
     937
     938        TRANSFORMS = {
     939            **generator.Generator.TRANSFORMS,
     940            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
     941            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
     942            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
     943            exp.Array: inline_array_unless_query,
     944            exp.ArrayContains: _array_contains_sql,
     945            exp.ArrayFilter: filter_array_using_unnest,
     946            exp.ArrayRemove: filter_array_using_unnest,
     947            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
     948            exp.CollateProperty: lambda self, e: (
     949                f"DEFAULT COLLATE {self.sql(e, 'this')}"
     950                if e.args.get("default")
     951                else f"COLLATE {self.sql(e, 'this')}"
     952            ),
     953            exp.Commit: lambda *_: "COMMIT TRANSACTION",
     954            exp.CountIf: rename_func("COUNTIF"),
     955            exp.Create: _create_sql,
     956            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
     957            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
     958            exp.DateDiff: lambda self, e: self.func(
     959                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
     960            ),
     961            exp.DateFromParts: rename_func("DATE"),
     962            exp.DateStrToDate: datestrtodate_sql,
     963            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
     964            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
     965            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
     966            exp.DateTrunc: lambda self, e: self.func(
     967                "DATE_TRUNC", e.this, e.text("unit"), e.args.get("zone")
     968            ),
     969            exp.FromTimeZone: lambda self, e: self.func(
     970                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
     971            ),
     972            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
     973            exp.GroupConcat: lambda self, e: groupconcat_sql(
     974                self, e, func_name="STRING_AGG", within_group=False
     975            ),
     976            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
     977            exp.HexString: lambda self, e: self.hexstring_sql(e, binary_function_repr="FROM_HEX"),
     978            exp.If: if_sql(false_value="NULL"),
     979            exp.ILike: no_ilike_sql,
     980            exp.IntDiv: rename_func("DIV"),
     981            exp.Int64: rename_func("INT64"),
     982            exp.JSONExtract: _json_extract_sql,
     983            exp.JSONExtractArray: _json_extract_sql,
     984            exp.JSONExtractScalar: _json_extract_sql,
     985            exp.JSONFormat: rename_func("TO_JSON_STRING"),
     986            exp.Levenshtein: _levenshtein_sql,
     987            exp.Max: max_or_greatest,
     988            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
     989            exp.MD5Digest: rename_func("MD5"),
     990            exp.Min: min_or_least,
     991            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
     992            exp.RegexpExtract: lambda self, e: self.func(
     993                "REGEXP_EXTRACT",
     994                e.this,
     995                e.expression,
     996                e.args.get("position"),
     997                e.args.get("occurrence"),
     998            ),
     999            exp.RegexpExtractAll: lambda self, e: self.func(
    1000                "REGEXP_EXTRACT_ALL", e.this, e.expression
    1001            ),
    1002            exp.RegexpReplace: regexp_replace_sql,
    1003            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    1004            exp.ReturnsProperty: _returnsproperty_sql,
    1005            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    1006            exp.Select: transforms.preprocess(
    1007                [
    1008                    transforms.explode_projection_to_unnest(),
    1009                    transforms.unqualify_unnest,
    1010                    transforms.eliminate_distinct_on,
    1011                    _alias_ordered_group,
    1012                    transforms.eliminate_semi_and_anti_joins,
    1013                ]
    1014            ),
    1015            exp.SHA: rename_func("SHA1"),
    1016            exp.SHA2: sha256_sql,
    1017            exp.StabilityProperty: lambda self, e: (
    1018                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    1019            ),
    1020            exp.String: rename_func("STRING"),
    1021            exp.StrPosition: lambda self, e: (
    1022                strposition_sql(
    1023                    self, e, func_name="INSTR", supports_position=True, supports_occurrence=True
    1024                )
    1025            ),
    1026            exp.StrToDate: _str_to_datetime_sql,
    1027            exp.StrToTime: _str_to_datetime_sql,
    1028            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    1029            exp.TimeFromParts: rename_func("TIME"),
    1030            exp.TimestampFromParts: rename_func("DATETIME"),
    1031            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    1032            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    1033            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    1034            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    1035            exp.TimeStrToTime: timestrtotime_sql,
    1036            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    1037            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    1038            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    1039            exp.TsOrDsToTime: rename_func("TIME"),
    1040            exp.TsOrDsToDatetime: rename_func("DATETIME"),
    1041            exp.TsOrDsToTimestamp: rename_func("TIMESTAMP"),
    1042            exp.Unhex: rename_func("FROM_HEX"),
    1043            exp.UnixDate: rename_func("UNIX_DATE"),
    1044            exp.UnixToTime: _unix_to_time_sql,
    1045            exp.Uuid: lambda *_: "GENERATE_UUID()",
    1046            exp.Values: _derived_table_values_to_unnest,
    1047            exp.VariancePop: rename_func("VAR_POP"),
    1048            exp.SafeDivide: rename_func("SAFE_DIVIDE"),
    1049        }
    1050
    1051        SUPPORTED_JSON_PATH_PARTS = {
    1052            exp.JSONPathKey,
    1053            exp.JSONPathRoot,
    1054            exp.JSONPathSubscript,
    1055        }
    1056
    1057        TYPE_MAPPING = {
    1058            **generator.Generator.TYPE_MAPPING,
    1059            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    1060            exp.DataType.Type.BIGINT: "INT64",
    1061            exp.DataType.Type.BINARY: "BYTES",
    1062            exp.DataType.Type.BLOB: "BYTES",
    1063            exp.DataType.Type.BOOLEAN: "BOOL",
    1064            exp.DataType.Type.CHAR: "STRING",
    1065            exp.DataType.Type.DECIMAL: "NUMERIC",
    1066            exp.DataType.Type.DOUBLE: "FLOAT64",
    1067            exp.DataType.Type.FLOAT: "FLOAT64",
    1068            exp.DataType.Type.INT: "INT64",
    1069            exp.DataType.Type.NCHAR: "STRING",
    1070            exp.DataType.Type.NVARCHAR: "STRING",
    1071            exp.DataType.Type.SMALLINT: "INT64",
    1072            exp.DataType.Type.TEXT: "STRING",
    1073            exp.DataType.Type.TIMESTAMP: "DATETIME",
    1074            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
    1075            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    1076            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    1077            exp.DataType.Type.TINYINT: "INT64",
    1078            exp.DataType.Type.ROWVERSION: "BYTES",
    1079            exp.DataType.Type.UUID: "STRING",
    1080            exp.DataType.Type.VARBINARY: "BYTES",
    1081            exp.DataType.Type.VARCHAR: "STRING",
    1082            exp.DataType.Type.VARIANT: "ANY TYPE",
    1083        }
    1084
    1085        PROPERTIES_LOCATION = {
    1086            **generator.Generator.PROPERTIES_LOCATION,
    1087            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    1088            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    1089        }
    1090
    1091        # WINDOW comes after QUALIFY
    1092        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    1093        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    1094            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    1095            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    1096        }
    1097
    1098        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    1099        RESERVED_KEYWORDS = {
    1100            "all",
    1101            "and",
    1102            "any",
    1103            "array",
    1104            "as",
    1105            "asc",
    1106            "assert_rows_modified",
    1107            "at",
    1108            "between",
    1109            "by",
    1110            "case",
    1111            "cast",
    1112            "collate",
    1113            "contains",
    1114            "create",
    1115            "cross",
    1116            "cube",
    1117            "current",
    1118            "default",
    1119            "define",
    1120            "desc",
    1121            "distinct",
    1122            "else",
    1123            "end",
    1124            "enum",
    1125            "escape",
    1126            "except",
    1127            "exclude",
    1128            "exists",
    1129            "extract",
    1130            "false",
    1131            "fetch",
    1132            "following",
    1133            "for",
    1134            "from",
    1135            "full",
    1136            "group",
    1137            "grouping",
    1138            "groups",
    1139            "hash",
    1140            "having",
    1141            "if",
    1142            "ignore",
    1143            "in",
    1144            "inner",
    1145            "intersect",
    1146            "interval",
    1147            "into",
    1148            "is",
    1149            "join",
    1150            "lateral",
    1151            "left",
    1152            "like",
    1153            "limit",
    1154            "lookup",
    1155            "merge",
    1156            "natural",
    1157            "new",
    1158            "no",
    1159            "not",
    1160            "null",
    1161            "nulls",
    1162            "of",
    1163            "on",
    1164            "or",
    1165            "order",
    1166            "outer",
    1167            "over",
    1168            "partition",
    1169            "preceding",
    1170            "proto",
    1171            "qualify",
    1172            "range",
    1173            "recursive",
    1174            "respect",
    1175            "right",
    1176            "rollup",
    1177            "rows",
    1178            "select",
    1179            "set",
    1180            "some",
    1181            "struct",
    1182            "tablesample",
    1183            "then",
    1184            "to",
    1185            "treat",
    1186            "true",
    1187            "unbounded",
    1188            "union",
    1189            "unnest",
    1190            "using",
    1191            "when",
    1192            "where",
    1193            "window",
    1194            "with",
    1195            "within",
    1196        }
    1197
    1198        def mod_sql(self, expression: exp.Mod) -> str:
    1199            this = expression.this
    1200            expr = expression.expression
    1201            return self.func(
    1202                "MOD",
    1203                this.unnest() if isinstance(this, exp.Paren) else this,
    1204                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    1205            )
    1206
    1207        def column_parts(self, expression: exp.Column) -> str:
    1208            if expression.meta.get("quoted_column"):
    1209                # If a column reference is of the form `dataset.table`.name, we need
    1210                # to preserve the quoted table path, otherwise the reference breaks
    1211                table_parts = ".".join(p.name for p in expression.parts[:-1])
    1212                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    1213                return f"{table_path}.{self.sql(expression, 'this')}"
    1214
    1215            return super().column_parts(expression)
    1216
    1217        def table_parts(self, expression: exp.Table) -> str:
    1218            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    1219            # we need to make sure the correct quoting is used in each case.
    1220            #
    1221            # For example, if there is a CTE x that clashes with a schema name, then the former will
    1222            # return the table y in that schema, whereas the latter will return the CTE's y column:
    1223            #
    1224            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    1225            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    1226            if expression.meta.get("quoted_table"):
    1227                table_parts = ".".join(p.name for p in expression.parts)
    1228                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    1229
    1230            return super().table_parts(expression)
    1231
    1232        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    1233            this = expression.this
    1234            if isinstance(this, exp.TsOrDsToDatetime):
    1235                func_name = "FORMAT_DATETIME"
    1236            elif isinstance(this, exp.TsOrDsToTimestamp):
    1237                func_name = "FORMAT_TIMESTAMP"
    1238            else:
    1239                func_name = "FORMAT_DATE"
    1240
    1241            time_expr = (
    1242                this
    1243                if isinstance(this, (exp.TsOrDsToDatetime, exp.TsOrDsToTimestamp, exp.TsOrDsToDate))
    1244                else expression
    1245            )
    1246            return self.func(
    1247                func_name, self.format_time(expression), time_expr.this, expression.args.get("zone")
    1248            )
    1249
    1250        def eq_sql(self, expression: exp.EQ) -> str:
    1251            # Operands of = cannot be NULL in BigQuery
    1252            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    1253                if not isinstance(expression.parent, exp.Update):
    1254                    return "NULL"
    1255
    1256            return self.binary(expression, "=")
    1257
    1258        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1259            parent = expression.parent
    1260
    1261            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    1262            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    1263            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    1264                return self.func(
    1265                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    1266                )
    1267
    1268            return super().attimezone_sql(expression)
    1269
    1270        def trycast_sql(self, expression: exp.TryCast) -> str:
    1271            return self.cast_sql(expression, safe_prefix="SAFE_")
    1272
    1273        def bracket_sql(self, expression: exp.Bracket) -> str:
    1274            this = expression.this
    1275            expressions = expression.expressions
    1276
    1277            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    1278                arg = expressions[0]
    1279                if arg.type is None:
    1280                    from sqlglot.optimizer.annotate_types import annotate_types
    1281
    1282                    arg = annotate_types(arg, dialect=self.dialect)
    1283
    1284                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    1285                    # BQ doesn't support bracket syntax with string values for structs
    1286                    return f"{self.sql(this)}.{arg.name}"
    1287
    1288            expressions_sql = self.expressions(expression, flat=True)
    1289            offset = expression.args.get("offset")
    1290
    1291            if offset == 0:
    1292                expressions_sql = f"OFFSET({expressions_sql})"
    1293            elif offset == 1:
    1294                expressions_sql = f"ORDINAL({expressions_sql})"
    1295            elif offset is not None:
    1296                self.unsupported(f"Unsupported array offset: {offset}")
    1297
    1298            if expression.args.get("safe"):
    1299                expressions_sql = f"SAFE_{expressions_sql}"
    1300
    1301            return f"{self.sql(this)}[{expressions_sql}]"
    1302
    1303        def in_unnest_op(self, expression: exp.Unnest) -> str:
    1304            return self.sql(expression)
    1305
    1306        def version_sql(self, expression: exp.Version) -> str:
    1307            if expression.name == "TIMESTAMP":
    1308                expression.set("this", "SYSTEM_TIME")
    1309            return super().version_sql(expression)
    1310
    1311        def contains_sql(self, expression: exp.Contains) -> str:
    1312            this = expression.this
    1313            expr = expression.expression
    1314
    1315            if isinstance(this, exp.Lower) and isinstance(expr, exp.Lower):
    1316                this = this.this
    1317                expr = expr.this
    1318
    1319            return self.func("CONTAINS_SUBSTR", this, expr)
    1320
    1321        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1322            this = expression.this
    1323
    1324            # This ensures that inline type-annotated ARRAY literals like ARRAY<INT64>[1, 2, 3]
    1325            # are roundtripped unaffected. The inner check excludes ARRAY(SELECT ...) expressions,
    1326            # because they aren't literals and so the above syntax is invalid BigQuery.
    1327            if isinstance(this, exp.Array):
    1328                elem = seq_get(this.expressions, 0)
    1329                if not (elem and elem.find(exp.Query)):
    1330                    return f"{self.sql(expression, 'to')}{self.sql(this)}"
    1331
    1332            return super().cast_sql(expression, safe_prefix=safe_prefix)

WEEK_OFFSET = -1

First day of the week in DATE_TRUNC(week). Defaults to 0 (Monday). -1 would be Sunday.

UNNEST_COLUMN_ONLY = True

Whether `UNNEST` table aliases are treated as column aliases.

SUPPORTS_USER_DEFINED_TYPES = False

Whether user-defined data types are supported.

SUPPORTS_SEMI_ANTI_JOIN = False

Whether `SEMI` or `ANTI` joins are supported.

LOG_BASE_FIRST: Optional[bool] = False

Whether the base comes first in the `LOG` function. Possible values: `True`, `False`, `None` (two arguments are not supported by `LOG`)

HEX_LOWERCASE = True

Whether the `HEX` function returns a lowercase hexadecimal string.

FORCE_EARLY_ALIAS_REF_EXPANSION = True

Whether alias reference expansion (_expand_alias_refs()) should run before column qualification (_qualify_columns()).

###### For example:

> WITH data AS ( SELECT 1 AS id, 2 AS my_id ) SELECT id AS my_id FROM data WHERE my_id = 1 GROUP BY my_id, HAVING my_id = 1

In most dialects, "my_id" would refer to "data.my_id" across the query, except: - BigQuery, which will forward the alias to GROUP BY + HAVING clauses i.e it resolves to "WHERE my_id = 1 GROUP BY id HAVING id = 1" - Clickhouse, which will forward the alias across the query i.e it resolves to "WHERE id = 1 GROUP BY id HAVING id = 1"

PRESERVE_ORIGINAL_NAMES: bool = True

Whether the name of the function should be preserved inside the node's metadata, can be useful for roundtripping deprecated vs new functions that share an AST node e.g JSON_VALUE vs JSON_EXTRACT_SCALAR in BigQuery

HEX_STRING_IS_INTEGER_TYPE: bool = True

Whether hex strings such as x'CC' evaluate to integer or binary/blob type

NORMALIZATION_STRATEGY = <NormalizationStrategy.CASE_INSENSITIVE: 'CASE_INSENSITIVE'>

Specifies the strategy according to which identifiers should be normalized.

NORMALIZE_FUNCTIONS: bool | str = False

Determines how function names are going to be normalized.

###### Possible values:

> "upper" or True: Convert names to uppercase. "lower": Convert names to lowercase. False: Disables function name normalization.

TIME_MAPPING: Dict[str, str] = {'%D': '%m/%d/%y', '%E6S': '%S.%f', '%e': '%-d'}

Associates this dialect's time formats with their equivalent Python `strftime` formats.

FORMAT_MAPPING: Dict[str, str] = {'DD': '%d', 'MM': '%m', 'MON': '%b', 'MONTH': '%B', 'YYYY': '%Y', 'YY': '%y', 'HH': '%I', 'HH12': '%I', 'HH24': '%H', 'MI': '%M', 'SS': '%S', 'SSSSS': '%f', 'TZH': '%z'}

Helper which is used for parsing the special syntax `CAST(x AS DATE FORMAT 'yyyy')`. If empty, the corresponding trie will be constructed off of `TIME_MAPPING`.

PSEUDOCOLUMNS: Set[str] = {'_PARTITIONTIME', '_PARTITIONDATE'}

Columns that are auto-generated by the engine corresponding to this dialect. For example, such columns may be excluded from `SELECT *` queries.

SET_OP_DISTINCT_BY_DEFAULT: Dict[Type[sqlglot.expressions.Expression], Optional[bool]] = {<class 'sqlglot.expressions.Except'>: None, <class 'sqlglot.expressions.Intersect'>: None, <class 'sqlglot.expressions.Union'>: None}

Whether a set operation uses DISTINCT by default. This is `None` when either `DISTINCT` or `ALL` must be explicitly specified.

TYPE_TO_EXPRESSIONS: Dict[sqlglot.expressions.DataType.Type, Set[Type[sqlglot.expressions.Expression]]] = {<Type.BIGINT: 'BIGINT'>: {<class 'sqlglot.expressions.Length'>, <class 'sqlglot.expressions.ArraySize'>, <class 'sqlglot.expressions.ApproxDistinct'>}, <Type.BOOLEAN: 'BOOLEAN'>: {<class 'sqlglot.expressions.RegexpLike'>, <class 'sqlglot.expressions.In'>, <class 'sqlglot.expressions.Boolean'>, <class 'sqlglot.expressions.Between'>}, <Type.DATE: 'DATE'>: {<class 'sqlglot.expressions.TimeStrToDate'>, <class 'sqlglot.expressions.TsOrDsToDate'>, <class 'sqlglot.expressions.DiToDate'>, <class 'sqlglot.expressions.CurrentDate'>, <class 'sqlglot.expressions.Date'>, <class 'sqlglot.expressions.DateStrToDate'>, <class 'sqlglot.expressions.StrToDate'>, <class 'sqlglot.expressions.DateFromParts'>}, <Type.DATETIME: 'DATETIME'>: {<class 'sqlglot.expressions.DatetimeAdd'>, <class 'sqlglot.expressions.Datetime'>, <class 'sqlglot.expressions.CurrentDatetime'>, <class 'sqlglot.expressions.DatetimeSub'>}, <Type.DOUBLE: 'DOUBLE'>: {<class 'sqlglot.expressions.Exp'>, <class 'sqlglot.expressions.VariancePop'>, <class 'sqlglot.expressions.Variance'>, <class 'sqlglot.expressions.Log'>, <class 'sqlglot.expressions.StddevSamp'>, <class 'sqlglot.expressions.Ln'>, <class 'sqlglot.expressions.Avg'>, <class 'sqlglot.expressions.Pow'>, <class 'sqlglot.expressions.SafeDivide'>, <class 'sqlglot.expressions.StddevPop'>, <class 'sqlglot.expressions.Stddev'>, <class 'sqlglot.expressions.Round'>, <class 'sqlglot.expressions.Sqrt'>, <class 'sqlglot.expressions.ToDouble'>, <class 'sqlglot.expressions.ApproxQuantile'>, <class 'sqlglot.expressions.Quantile'>}, <Type.INT: 'INT'>: {<class 'sqlglot.expressions.Sign'>, <class 'sqlglot.expressions.StrPosition'>, <class 'sqlglot.expressions.Ceil'>, <class 'sqlglot.expressions.TimeDiff'>, <class 'sqlglot.expressions.DateDiff'>, <class 'sqlglot.expressions.Levenshtein'>, <class 'sqlglot.expressions.TsOrDiToDi'>, <class 'sqlglot.expressions.TimestampDiff'>, <class 'sqlglot.expressions.DatetimeDiff'>, <class 'sqlglot.expressions.DateToDi'>}, <Type.JSON: 'JSON'>: {<class 'sqlglot.expressions.ParseJSON'>}, <Type.TIME: 'TIME'>: {<class 'sqlglot.expressions.CurrentTime'>, <class 'sqlglot.expressions.Time'>, <class 'sqlglot.expressions.TimeSub'>, <class 'sqlglot.expressions.TimeAdd'>}, <Type.TINYINT: 'TINYINT'>: {<class 'sqlglot.expressions.Year'>, <class 'sqlglot.expressions.Month'>, <class 'sqlglot.expressions.Day'>, <class 'sqlglot.expressions.Week'>, <class 'sqlglot.expressions.Quarter'>}, <Type.VARCHAR: 'VARCHAR'>: {<class 'sqlglot.expressions.DPipe'>, <class 'sqlglot.expressions.ConcatWs'>, <class 'sqlglot.expressions.Concat'>, <class 'sqlglot.expressions.String'>, <class 'sqlglot.expressions.Initcap'>, <class 'sqlglot.expressions.ArrayConcat'>, <class 'sqlglot.expressions.TimeToTimeStr'>, <class 'sqlglot.expressions.TsOrDsToDateStr'>, <class 'sqlglot.expressions.Upper'>, <class 'sqlglot.expressions.TimeToStr'>, <class 'sqlglot.expressions.UnixToStr'>, <class 'sqlglot.expressions.Substring'>, <class 'sqlglot.expressions.Trim'>, <class 'sqlglot.expressions.DateToDateStr'>, <class 'sqlglot.expressions.Lower'>, <class 'sqlglot.expressions.GroupConcat'>, <class 'sqlglot.expressions.UnixToTimeStr'>}, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: {<class 'sqlglot.expressions.TimeStrToTime'>, <class 'sqlglot.expressions.CurrentTimestamp'>, <class 'sqlglot.expressions.StrToTime'>, <class 'sqlglot.expressions.TimestampSub'>, <class 'sqlglot.expressions.UnixToTime'>, <class 'sqlglot.expressions.TimestampAdd'>}}
ANNOTATORS: Dict[Type[~E], Callable[[sqlglot.optimizer.annotate_types.TypeAnnotator, ~E], ~E]] = {<class 'sqlglot.expressions.Alias'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseNot'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Neg'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Not'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Paren'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.PivotAlias'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Unary'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Add'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.And'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ArrayContains'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ArrayContainsAll'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ArrayOverlaps'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Binary'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseAnd'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseLeftShift'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseOr'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseRightShift'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.BitwiseXor'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Collate'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Connector'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Corr'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.CovarPop'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.CovarSamp'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.DPipe'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Distance'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Div'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Dot'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.EQ'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Escape'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.GT'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.GTE'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Glob'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ILike'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ILikeAny'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.IntDiv'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Is'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONArrayContains'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONBContains'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONBExtract'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONBExtractScalar'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Kwarg'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.LT'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.LTE'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Like'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.LikeAny'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Mod'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Mul'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.NEQ'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.NullSafeEQ'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.NullSafeNEQ'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Operator'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Or'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Overlaps'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Pow'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.PropertyEQ'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.RegexpILike'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.RegexpLike'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.SimilarTo'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Slice'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Sub'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Xor'>: <function Dialect.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Length'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ArraySize'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ApproxDistinct'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.In'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Boolean'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Between'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DiToDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Date'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DateStrToDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.StrToDate'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DateFromParts'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DatetimeAdd'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Datetime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDatetime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DatetimeSub'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Exp'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.VariancePop'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Variance'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Log'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.StddevSamp'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Ln'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Avg'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.SafeDivide'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.StddevPop'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Stddev'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Round'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Sqrt'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.ToDouble'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ApproxQuantile'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Quantile'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Sign'>: <function BigQuery.<lambda>>, <class 'sqlglot.expressions.StrPosition'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Ceil'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.TimeDiff'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DateDiff'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Levenshtein'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDiToDi'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampDiff'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DatetimeDiff'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.DateToDi'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ParseJSON'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentTime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Time'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeSub'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeAdd'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentTimestamp'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.StrToTime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.UnixToTime'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampAdd'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Year'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Month'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Day'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Week'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Quarter'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ConcatWs'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Concat'>: <function _annotate_concat>, <class 'sqlglot.expressions.String'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Initcap'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.ArrayConcat'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeToTimeStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDateStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Upper'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.UnixToStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Substring'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Trim'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.DateToDateStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Lower'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.GroupConcat'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.UnixToTimeStr'>: <function annotate_with_type_lambda.<locals>.<lambda>>, <class 'sqlglot.expressions.Abs'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Anonymous'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Array'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.ArrayAgg'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Bracket'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Cast'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Case'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Coalesce'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Count'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.DataType'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.DateAdd'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.DateSub'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.DateTrunc'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Distinct'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Explode'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Extract'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Filter'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.GenerateDateArray'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.GenerateTimestampArray'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Greatest'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.If'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Interval'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Least'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Literal'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Map'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Max'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Min'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Null'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Nullif'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Struct'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Sum'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.SortArray'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.TryCast'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Unnest'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Dialect.<lambda>>, <class 'sqlglot.expressions.Floor'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Left'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Right'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Pad'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.RegexpExtract'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.RegexpReplace'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Repeat'>: <function BigQuery.<dictcomp>.<lambda>>, <class 'sqlglot.expressions.Split'>: <function BigQuery.<lambda>>}
def normalize_identifier(self, expression: ~E) -> ~E: View Source

    453    def normalize_identifier(self, expression: E) -> E:
    454        if (
    455            isinstance(expression, exp.Identifier)
    456            and self.normalization_strategy is NormalizationStrategy.CASE_INSENSITIVE
    457        ):
    458            parent = expression.parent
    459            while isinstance(parent, exp.Dot):
    460                parent = parent.parent
    461
    462            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
    463            # by default. The following check uses a heuristic to detect tables based on whether
    464            # they are qualified. This should generally be correct, because tables in BigQuery
    465            # must be qualified with at least a dataset, unless @@dataset_id is set.
    466            case_sensitive = (
    467                isinstance(parent, exp.UserDefinedFunction)
    468                or (
    469                    isinstance(parent, exp.Table)
    470                    and parent.db
    471                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
    472                )
    473                or expression.meta.get("is_table")
    474            )
    475            if not case_sensitive:
    476                expression.set("this", expression.this.lower())
    477
    478            return t.cast(E, expression)
    479
    480        return super().normalize_identifier(expression)

Transforms an identifier in a way that resembles how it'd be resolved by this dialect.

For example, an identifier like `FoO` would be resolved as `foo` in Postgres, because it lowercases all unquoted identifiers. On the other hand, Snowflake uppercases them, so it would resolve it as `FOO`. If it was quoted, it'd need to be treated as case-sensitive, and so any normalization would be prohibited in order to avoid "breaking" the identifier.

There are also dialects like Spark, which are case-insensitive even when quotes are present, and dialects like MySQL, whose resolution rules match those employed by the underlying operating system, for example they may always be case-sensitive in Linux.

Finally, the normalization behavior of some engines can even be controlled through flags, like in Redshift's case, where users can explicitly set enable_case_sensitive_identifier.

SQLGlot aims to understand and handle all of these different behaviors gracefully, so that it can analyze queries in the optimizer and successfully capture their semantics.

SUPPORTS_COLUMN_JOIN_MARKS = False

Whether the old-style outer join (+) syntax is supported.

UNESCAPED_SEQUENCES: Dict[str, str] = {'\\a': '\x07', '\\b': '\x08', '\\f': '\x0c', '\\n': '\n', '\\r': '\r', '\\t': '\t', '\\v': '\x0b', '\\\\': '\\'}

Mapping of an escaped sequence (`\n`) to its unescaped version (`` ).

tokenizer_class = <class 'BigQuery.Tokenizer'>
jsonpath_tokenizer_class = <class 'sqlglot.tokens.JSONPathTokenizer'>
parser_class = <class 'BigQuery.Parser'>
generator_class = <class 'BigQuery.Generator'>
TIME_TRIE: Dict = {'%': {'D': {0: True}, 'E': {'6': {'S': {0: True}}}, 'e': {0: True}}}
FORMAT_TRIE: Dict = {'D': {'D': {0: True}}, 'M': {'M': {0: True}, 'O': {'N': {0: True, 'T': {'H': {0: True}}}}, 'I': {0: True}}, 'Y': {'Y': {'Y': {'Y': {0: True}}, 0: True}}, 'H': {'H': {0: True, '1': {'2': {0: True}}, '2': {'4': {0: True}}}}, 'S': {'S': {0: True, 'S': {'S': {'S': {0: True}}}}}, 'T': {'Z': {'H': {0: True}}}}
INVERSE_TIME_MAPPING: Dict[str, str] = {'%m/%d/%y': '%D', '%S.%f': '%E6S', '%-d': '%e'}
INVERSE_TIME_TRIE: Dict = {'%': {'m': {'/': {'%': {'d': {'/': {'%': {'y': {0: True}}}}}}}, 'S': {'.': {'%': {'f': {0: True}}}}, '-': {'d': {0: True}}}}
INVERSE_FORMAT_MAPPING: Dict[str, str] = {'%d': 'DD', '%m': 'MM', '%b': 'MON', '%B': 'MONTH', '%Y': 'YYYY', '%y': 'YY', '%I': 'HH12', '%H': 'HH24', '%M': 'MI', '%S': 'SS', '%f': 'SSSSS', '%z': 'TZH'}
INVERSE_FORMAT_TRIE: Dict = {'%': {'d': {0: True}, 'm': {0: True}, 'b': {0: True}, 'B': {0: True}, 'Y': {0: True}, 'y': {0: True}, 'I': {0: True}, 'H': {0: True}, 'M': {0: True}, 'S': {0: True}, 'f': {0: True}, 'z': {0: True}}}
INVERSE_CREATABLE_KIND_MAPPING: dict[str, str] = {}
ESCAPED_SEQUENCES: Dict[str, str] = {'\x07': '\\a', '\x08': '\\b', '\x0c': '\\f', '\n': '\\n', '\r': '\\r', '\t': '\\t', '\x0b': '\\v', '\\': '\\\\'}
QUOTE_START = "'"
QUOTE_END = "'"
IDENTIFIER_START = '`'
IDENTIFIER_END = '`'
BIT_START: Optional[str] = None
BIT_END: Optional[str] = None
HEX_START: Optional[str] = '0x'
HEX_END: Optional[str] = ''
BYTE_START: Optional[str] = "b'"
BYTE_END: Optional[str] = "'"
UNICODE_START: Optional[str] = None
UNICODE_END: Optional[str] = None
class BigQuery.Tokenizer(sqlglot.tokens.Tokenizer): View Source

    482    class Tokenizer(tokens.Tokenizer):
    483        QUOTES = ["'", '"', '"""', "'''"]
    484        COMMENTS = ["--", "#", ("/*", "*/")]
    485        IDENTIFIERS = ["`"]
    486        STRING_ESCAPES = ["\\"]
    487
    488        HEX_STRINGS = [("0x", ""), ("0X", "")]
    489
    490        BYTE_STRINGS = [
    491            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
    492        ]
    493
    494        RAW_STRINGS = [
    495            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
    496        ]
    497
    498        NESTED_COMMENTS = False
    499
    500        KEYWORDS = {
    501            **tokens.Tokenizer.KEYWORDS,
    502            "ANY TYPE": TokenType.VARIANT,
    503            "BEGIN": TokenType.COMMAND,
    504            "BEGIN TRANSACTION": TokenType.BEGIN,
    505            "BYTEINT": TokenType.INT,
    506            "BYTES": TokenType.BINARY,
    507            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    508            "DATETIME": TokenType.TIMESTAMP,
    509            "DECLARE": TokenType.COMMAND,
    510            "ELSEIF": TokenType.COMMAND,
    511            "EXCEPTION": TokenType.COMMAND,
    512            "EXPORT": TokenType.EXPORT,
    513            "FLOAT64": TokenType.DOUBLE,
    514            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
    515            "MODEL": TokenType.MODEL,
    516            "NOT DETERMINISTIC": TokenType.VOLATILE,
    517            "RECORD": TokenType.STRUCT,
    518            "TIMESTAMP": TokenType.TIMESTAMPTZ,
    519        }
    520        KEYWORDS.pop("DIV")
    521        KEYWORDS.pop("VALUES")
    522        KEYWORDS.pop("/*+")

QUOTES = ["'", '"', '"""', "'''"]
COMMENTS = ['--', '#', ('/*', '*/')]
IDENTIFIERS = ['`']
STRING_ESCAPES = ['\\']
HEX_STRINGS = [('0x', ''), ('0X', '')]
BYTE_STRINGS = [("b'", "'"), ("B'", "'"), ('b"', '"'), ('B"', '"'), ('b"""', '"""'), ('B"""', '"""'), ("b'''", "'''"), ("B'''", "'''")]
RAW_STRINGS = [("r'", "'"), ("R'", "'"), ('r"', '"'), ('R"', '"'), ('r"""', '"""'), ('R"""', '"""'), ("r'''", "'''"), ("R'''", "'''")]
NESTED_COMMENTS = False
KEYWORDS = {'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '|>': <TokenType.PIPE_GT: 'PIPE_GT'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, '~~~': <TokenType.GLOB: 'GLOB'>, '~~': <TokenType.LIKE: 'LIKE'>, '~~*': <TokenType.ILIKE: 'ILIKE'>, '~*': <TokenType.IRLIKE: 'IRLIKE'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.COMMAND: 'COMMAND'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_SCHEMA': <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NAMESPACE': <TokenType.NAMESPACE: 'NAMESPACE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'RENAME': <TokenType.RENAME: 'RENAME'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'MEDIUMINT': <TokenType.MEDIUMINT: 'MEDIUMINT'>, 'INT1': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'UHUGEINT': <TokenType.UINT128: 'UINT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'INT256': <TokenType.INT256: 'INT256'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'UINT128': <TokenType.UINT128: 'UINT128'>, 'UINT256': <TokenType.UINT256: 'UINT256'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL32': <TokenType.DECIMAL32: 'DECIMAL32'>, 'DECIMAL64': <TokenType.DECIMAL64: 'DECIMAL64'>, 'DECIMAL128': <TokenType.DECIMAL128: 'DECIMAL128'>, 'DECIMAL256': <TokenType.DECIMAL256: 'DECIMAL256'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'CHAR VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'CHARACTER VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.ANALYZE: 'ANALYZE'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.GRANT: 'GRANT'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'ANY TYPE': <TokenType.VARIANT: 'VARIANT'>, 'BEGIN TRANSACTION': <TokenType.BEGIN: 'BEGIN'>, 'BYTEINT': <TokenType.INT: 'INT'>, 'BYTES': <TokenType.BINARY: 'BINARY'>, 'CURRENT_DATETIME': <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, 'DECLARE': <TokenType.COMMAND: 'COMMAND'>, 'ELSEIF': <TokenType.COMMAND: 'COMMAND'>, 'EXCEPTION': <TokenType.COMMAND: 'COMMAND'>, 'EXPORT': <TokenType.EXPORT: 'EXPORT'>, 'FLOAT64': <TokenType.DOUBLE: 'DOUBLE'>, 'FOR SYSTEM_TIME': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'MODEL': <TokenType.MODEL: 'MODEL'>, 'NOT DETERMINISTIC': <TokenType.VOLATILE: 'VOLATILE'>, 'RECORD': <TokenType.STRUCT: 'STRUCT'>}

##### Inherited Members

sqlglot.tokens.Tokenizer
  Tokenizer
  SINGLE_TOKENS
  BIT_STRINGS
  HEREDOC_STRINGS
  UNICODE_STRINGS
  VAR_SINGLE_TOKENS
  IDENTIFIER_ESCAPES
  HEREDOC_TAG_IS_IDENTIFIER
  HEREDOC_STRING_ALTERNATIVE
  STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS
  HINT_START
  TOKENS_PRECEDING_HINT
  WHITE_SPACE
  COMMANDS
  COMMAND_PREFIX_TOKENS
  NUMERIC_LITERALS
  dialect
  use_rs_tokenizer
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

class BigQuery.Parser(sqlglot.parser.Parser): View Source

    524    class Parser(parser.Parser):
    525        PREFIXED_PIVOT_COLUMNS = True
    526        LOG_DEFAULTS_TO_LN = True
    527        SUPPORTS_IMPLICIT_UNNEST = True
    528
    529        # BigQuery does not allow ASC/DESC to be used as an identifier
    530        ID_VAR_TOKENS = parser.Parser.ID_VAR_TOKENS - {TokenType.ASC, TokenType.DESC}
    531        ALIAS_TOKENS = parser.Parser.ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
    532        TABLE_ALIAS_TOKENS = parser.Parser.TABLE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
    533        COMMENT_TABLE_ALIAS_TOKENS = parser.Parser.COMMENT_TABLE_ALIAS_TOKENS - {
    534            TokenType.ASC,
    535            TokenType.DESC,
    536        }
    537        UPDATE_ALIAS_TOKENS = parser.Parser.UPDATE_ALIAS_TOKENS - {TokenType.ASC, TokenType.DESC}
    538
    539        FUNCTIONS = {
    540            **parser.Parser.FUNCTIONS,
    541            "CONTAINS_SUBSTR": _build_contains_substring,
    542            "DATE": _build_date,
    543            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    544            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    545            "DATE_TRUNC": lambda args: exp.DateTrunc(
    546                unit=exp.Literal.string(str(seq_get(args, 1))),
    547                this=seq_get(args, 0),
    548                zone=seq_get(args, 2),
    549            ),
    550            "DATETIME": _build_datetime,
    551            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
    552            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
    553            "DIV": binary_from_function(exp.IntDiv),
    554            "EDIT_DISTANCE": _build_levenshtein,
    555            "FORMAT_DATE": _build_format_time(exp.TsOrDsToDate),
    556            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
    557            "JSON_EXTRACT_SCALAR": _build_extract_json_with_default_path(exp.JSONExtractScalar),
    558            "JSON_EXTRACT_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
    559            "JSON_QUERY": parser.build_extract_json_with_path(exp.JSONExtract),
    560            "JSON_QUERY_ARRAY": _build_extract_json_with_default_path(exp.JSONExtractArray),
    561            "JSON_VALUE": _build_extract_json_with_default_path(exp.JSONExtractScalar),
    562            "JSON_VALUE_ARRAY": _build_extract_json_with_default_path(exp.JSONValueArray),
    563            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
    564            "MD5": exp.MD5Digest.from_arg_list,
    565            "TO_HEX": _build_to_hex,
    566            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
    567                [seq_get(args, 1), seq_get(args, 0)]
    568            ),
    569            "PARSE_TIMESTAMP": _build_parse_timestamp,
    570            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    571            "REGEXP_EXTRACT": _build_regexp_extract(exp.RegexpExtract),
    572            "REGEXP_SUBSTR": _build_regexp_extract(exp.RegexpExtract),
    573            "REGEXP_EXTRACT_ALL": _build_regexp_extract(
    574                exp.RegexpExtractAll, default_group=exp.Literal.number(0)
    575            ),
    576            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
    577            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
    578            "SPLIT": lambda args: exp.Split(
    579                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
    580                this=seq_get(args, 0),
    581                expression=seq_get(args, 1) or exp.Literal.string(","),
    582            ),
    583            "STRPOS": exp.StrPosition.from_arg_list,
    584            "TIME": _build_time,
    585            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
    586            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
    587            "TIMESTAMP": _build_timestamp,
    588            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
    589            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
    590            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
    591                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
    592            ),
    593            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
    594                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
    595            ),
    596            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
    597            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
    598            "FORMAT_DATETIME": _build_format_time(exp.TsOrDsToDatetime),
    599            "FORMAT_TIMESTAMP": _build_format_time(exp.TsOrDsToTimestamp),
    600        }
    601
    602        FUNCTION_PARSERS = {
    603            **parser.Parser.FUNCTION_PARSERS,
    604            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    605            "MAKE_INTERVAL": lambda self: self._parse_make_interval(),
    606            "FEATURES_AT_TIME": lambda self: self._parse_features_at_time(),
    607        }
    608        FUNCTION_PARSERS.pop("TRIM")
    609
    610        NO_PAREN_FUNCTIONS = {
    611            **parser.Parser.NO_PAREN_FUNCTIONS,
    612            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    613        }
    614
    615        NESTED_TYPE_TOKENS = {
    616            *parser.Parser.NESTED_TYPE_TOKENS,
    617            TokenType.TABLE,
    618        }
    619
    620        PROPERTY_PARSERS = {
    621            **parser.Parser.PROPERTY_PARSERS,
    622            "NOT DETERMINISTIC": lambda self: self.expression(
    623                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    624            ),
    625            "OPTIONS": lambda self: self._parse_with_property(),
    626        }
    627
    628        CONSTRAINT_PARSERS = {
    629            **parser.Parser.CONSTRAINT_PARSERS,
    630            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    631        }
    632
    633        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
    634        RANGE_PARSERS.pop(TokenType.OVERLAPS)
    635
    636        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
    637
    638        DASHED_TABLE_PART_FOLLOW_TOKENS = {TokenType.DOT, TokenType.L_PAREN, TokenType.R_PAREN}
    639
    640        STATEMENT_PARSERS = {
    641            **parser.Parser.STATEMENT_PARSERS,
    642            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
    643            TokenType.END: lambda self: self._parse_as_command(self._prev),
    644            TokenType.FOR: lambda self: self._parse_for_in(),
    645            TokenType.EXPORT: lambda self: self._parse_export_data(),
    646        }
    647
    648        BRACKET_OFFSETS = {
    649            "OFFSET": (0, False),
    650            "ORDINAL": (1, False),
    651            "SAFE_OFFSET": (0, True),
    652            "SAFE_ORDINAL": (1, True),
    653        }
    654
    655        def _parse_for_in(self) -> exp.ForIn:
    656            this = self._parse_range()
    657            self._match_text_seq("DO")
    658            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
    659
    660        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
    661            this = super()._parse_table_part(schema=schema) or self._parse_number()
    662
    663            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
    664            if isinstance(this, exp.Identifier):
    665                table_name = this.name
    666                while self._match(TokenType.DASH, advance=False) and self._next:
    667                    start = self._curr
    668                    while self._is_connected() and not self._match_set(
    669                        self.DASHED_TABLE_PART_FOLLOW_TOKENS, advance=False
    670                    ):
    671                        self._advance()
    672
    673                    if start == self._curr:
    674                        break
    675
    676                    table_name += self._find_sql(start, self._prev)
    677
    678                this = exp.Identifier(
    679                    this=table_name, quoted=this.args.get("quoted")
    680                ).update_positions(this)
    681            elif isinstance(this, exp.Literal):
    682                table_name = this.name
    683
    684                if self._is_connected() and self._parse_var(any_token=True):
    685                    table_name += self._prev.text
    686
    687                this = exp.Identifier(this=table_name, quoted=True).update_positions(this)
    688
    689            return this
    690
    691        def _parse_table_parts(
    692            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
    693        ) -> exp.Table:
    694            table = super()._parse_table_parts(
    695                schema=schema, is_db_reference=is_db_reference, wildcard=True
    696            )
    697
    698            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
    699            if not table.catalog:
    700                if table.db:
    701                    previous_db = table.args["db"]
    702                    parts = table.db.split(".")
    703                    if len(parts) == 2 and not table.args["db"].quoted:
    704                        table.set(
    705                            "catalog", exp.Identifier(this=parts[0]).update_positions(previous_db)
    706                        )
    707                        table.set("db", exp.Identifier(this=parts[1]).update_positions(previous_db))
    708                else:
    709                    previous_this = table.this
    710                    parts = table.name.split(".")
    711                    if len(parts) == 2 and not table.this.quoted:
    712                        table.set(
    713                            "db", exp.Identifier(this=parts[0]).update_positions(previous_this)
    714                        )
    715                        table.set(
    716                            "this", exp.Identifier(this=parts[1]).update_positions(previous_this)
    717                        )
    718
    719            if isinstance(table.this, exp.Identifier) and any("." in p.name for p in table.parts):
    720                alias = table.this
    721                catalog, db, this, *rest = (
    722                    exp.to_identifier(p, quoted=True)
    723                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
    724                )
    725
    726                for part in (catalog, db, this):
    727                    if part:
    728                        part.update_positions(table.this)
    729
    730                if rest and this:
    731                    this = exp.Dot.build([this, *rest])  # type: ignore
    732
    733                table = exp.Table(
    734                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
    735                )
    736                table.meta["quoted_table"] = True
    737            else:
    738                alias = None
    739
    740            # The `INFORMATION_SCHEMA` views in BigQuery need to be qualified by a region or
    741            # dataset, so if the project identifier is omitted we need to fix the ast so that
    742            # the `INFORMATION_SCHEMA.X` bit is represented as a single (quoted) Identifier.
    743            # Otherwise, we wouldn't correctly qualify a `Table` node that references these
    744            # views, because it would seem like the "catalog" part is set, when it'd actually
    745            # be the region/dataset. Merging the two identifiers into a single one is done to
    746            # avoid producing a 4-part Table reference, which would cause issues in the schema
    747            # module, when there are 3-part table names mixed with information schema views.
    748            #
    749            # See: https://cloud.google.com/bigquery/docs/information-schema-intro#syntax
    750            table_parts = table.parts
    751            if len(table_parts) > 1 and table_parts[-2].name.upper() == "INFORMATION_SCHEMA":
    752                # We need to alias the table here to avoid breaking existing qualified columns.
    753                # This is expected to be safe, because if there's an actual alias coming up in
    754                # the token stream, it will overwrite this one. If there isn't one, we are only
    755                # exposing the name that can be used to reference the view explicitly (a no-op).
    756                exp.alias_(
    757                    table,
    758                    t.cast(exp.Identifier, alias or table_parts[-1]),
    759                    table=True,
    760                    copy=False,
    761                )
    762
    763                info_schema_view = f"{table_parts[-2].name}.{table_parts[-1].name}"
    764                new_this = exp.Identifier(this=info_schema_view, quoted=True).update_positions(
    765                    line=table_parts[-2].meta.get("line"),
    766                    col=table_parts[-1].meta.get("col"),
    767                    start=table_parts[-2].meta.get("start"),
    768                    end=table_parts[-1].meta.get("end"),
    769                )
    770                table.set("this", new_this)
    771                table.set("db", seq_get(table_parts, -3))
    772                table.set("catalog", seq_get(table_parts, -4))
    773
    774            return table
    775
    776        def _parse_column(self) -> t.Optional[exp.Expression]:
    777            column = super()._parse_column()
    778            if isinstance(column, exp.Column):
    779                parts = column.parts
    780                if any("." in p.name for p in parts):
    781                    catalog, db, table, this, *rest = (
    782                        exp.to_identifier(p, quoted=True)
    783                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
    784                    )
    785
    786                    if rest and this:
    787                        this = exp.Dot.build([this, *rest])  # type: ignore
    788
    789                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
    790                    column.meta["quoted_column"] = True
    791
    792            return column
    793
    794        @t.overload
    795        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
    796
    797        @t.overload
    798        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
    799
    800        def _parse_json_object(self, agg=False):
    801            json_object = super()._parse_json_object()
    802            array_kv_pair = seq_get(json_object.expressions, 0)
    803
    804            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
    805            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
    806            if (
    807                array_kv_pair
    808                and isinstance(array_kv_pair.this, exp.Array)
    809                and isinstance(array_kv_pair.expression, exp.Array)
    810            ):
    811                keys = array_kv_pair.this.expressions
    812                values = array_kv_pair.expression.expressions
    813
    814                json_object.set(
    815                    "expressions",
    816                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
    817                )
    818
    819            return json_object
    820
    821        def _parse_bracket(
    822            self, this: t.Optional[exp.Expression] = None
    823        ) -> t.Optional[exp.Expression]:
    824            bracket = super()._parse_bracket(this)
    825
    826            if this is bracket:
    827                return bracket
    828
    829            if isinstance(bracket, exp.Bracket):
    830                for expression in bracket.expressions:
    831                    name = expression.name.upper()
    832
    833                    if name not in self.BRACKET_OFFSETS:
    834                        break
    835
    836                    offset, safe = self.BRACKET_OFFSETS[name]
    837                    bracket.set("offset", offset)
    838                    bracket.set("safe", safe)
    839                    expression.replace(expression.expressions[0])
    840
    841            return bracket
    842
    843        def _parse_unnest(self, with_alias: bool = True) -> t.Optional[exp.Unnest]:
    844            unnest = super()._parse_unnest(with_alias=with_alias)
    845
    846            if not unnest:
    847                return None
    848
    849            unnest_expr = seq_get(unnest.expressions, 0)
    850            if unnest_expr:
    851                from sqlglot.optimizer.annotate_types import annotate_types
    852
    853                unnest_expr = annotate_types(unnest_expr, dialect=self.dialect)
    854
    855                # Unnesting a nested array (i.e array of structs) explodes the top-level struct fields,
    856                # in contrast to other dialects such as DuckDB which flattens only the array by default
    857                if unnest_expr.is_type(exp.DataType.Type.ARRAY) and any(
    858                    array_elem.is_type(exp.DataType.Type.STRUCT)
    859                    for array_elem in unnest_expr._type.expressions
    860                ):
    861                    unnest.set("explode_array", True)
    862
    863            return unnest
    864
    865        def _parse_make_interval(self) -> exp.MakeInterval:
    866            expr = exp.MakeInterval()
    867
    868            for arg_key in expr.arg_types:
    869                value = self._parse_lambda()
    870
    871                if not value:
    872                    break
    873
    874                # Non-named arguments are filled sequentially, (optionally) followed by named arguments
    875                # that can appear in any order e.g MAKE_INTERVAL(1, minute => 5, day => 2)
    876                if isinstance(value, exp.Kwarg):
    877                    arg_key = value.this.name
    878
    879                expr.set(arg_key, value)
    880
    881                self._match(TokenType.COMMA)
    882
    883            return expr
    884
    885        def _parse_features_at_time(self) -> exp.FeaturesAtTime:
    886            expr = self.expression(
    887                exp.FeaturesAtTime,
    888                this=(self._match(TokenType.TABLE) and self._parse_table())
    889                or self._parse_select(nested=True),
    890            )
    891
    892            while self._match(TokenType.COMMA):
    893                arg = self._parse_lambda()
    894
    895                # Get the LHS of the Kwarg and set the arg to that value, e.g
    896                # "num_rows => 1" sets the expr's `num_rows` arg
    897                if arg:
    898                    expr.set(arg.this.name, arg)
    899
    900            return expr
    901
    902        def _parse_export_data(self) -> exp.Export:
    903            self._match_text_seq("DATA")
    904
    905            return self.expression(
    906                exp.Export,
    907                connection=self._match_text_seq("WITH", "CONNECTION") and self._parse_table_parts(),
    908                options=self._parse_properties(),
    909                this=self._match_text_seq("AS") and self._parse_select(),
    910            )

Parser consumes a list of tokens produced by the Tokenizer and produces a parsed syntax tree.

###### Arguments:

- error_level: The desired error level. Default: ErrorLevel.IMMEDIATE
- error_message_context: The amount of context to capture from a query string when displaying the error message (in number of characters). Default: 100
- max_errors: Maximum number of error messages to include in a raised ParseError. This is only relevant if error_level is ErrorLevel.RAISE. Default: 3

PREFIXED_PIVOT_COLUMNS = True
LOG_DEFAULTS_TO_LN = True
SUPPORTS_IMPLICIT_UNNEST = True
ID_VAR_TOKENS = {<TokenType.SHOW: 'SHOW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SINK: 'SINK'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.MAP: 'MAP'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.APPLY: 'APPLY'>, <TokenType.RENAME: 'RENAME'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UINT128: 'UINT128'>, <TokenType.STAGE: 'STAGE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DIV: 'DIV'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.XML: 'XML'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.PUT: 'PUT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IS: 'IS'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.VAR: 'VAR'>, <TokenType.CUBE: 'CUBE'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.INT128: 'INT128'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.UINT: 'UINT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.COPY: 'COPY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BLOB: 'BLOB'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UUID: 'UUID'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.CASE: 'CASE'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANY: 'ANY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.END: 'END'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATE32: 'DATE32'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.SEMI: 'SEMI'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.BINARY: 'BINARY'>, <TokenType.RING: 'RING'>, <TokenType.TAG: 'TAG'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.GET: 'GET'>, <TokenType.POINT: 'POINT'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TOP: 'TOP'>, <TokenType.UINT256: 'UINT256'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FIRST: 'FIRST'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TRUE: 'TRUE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.ALL: 'ALL'>, <TokenType.KILL: 'KILL'>, <TokenType.LEFT: 'LEFT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.FULL: 'FULL'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.SET: 'SET'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.LIST: 'LIST'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ASOF: 'ASOF'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INET: 'INET'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.VOID: 'VOID'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.NAME: 'NAME'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DELETE: 'DELETE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATE: 'DATE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SOME: 'SOME'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>}
ALIAS_TOKENS = {<TokenType.SHOW: 'SHOW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SINK: 'SINK'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.MAP: 'MAP'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.APPLY: 'APPLY'>, <TokenType.RENAME: 'RENAME'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UINT128: 'UINT128'>, <TokenType.STAGE: 'STAGE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DIV: 'DIV'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.XML: 'XML'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.PUT: 'PUT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IS: 'IS'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.VAR: 'VAR'>, <TokenType.CUBE: 'CUBE'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.INT128: 'INT128'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.UINT: 'UINT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.COPY: 'COPY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BLOB: 'BLOB'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UUID: 'UUID'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.CASE: 'CASE'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANY: 'ANY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.END: 'END'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATE32: 'DATE32'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.SEMI: 'SEMI'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.BINARY: 'BINARY'>, <TokenType.RING: 'RING'>, <TokenType.TAG: 'TAG'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.GET: 'GET'>, <TokenType.POINT: 'POINT'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TOP: 'TOP'>, <TokenType.UINT256: 'UINT256'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FIRST: 'FIRST'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TRUE: 'TRUE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.ALL: 'ALL'>, <TokenType.KILL: 'KILL'>, <TokenType.LEFT: 'LEFT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.FULL: 'FULL'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.SET: 'SET'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.LIST: 'LIST'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ASOF: 'ASOF'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INET: 'INET'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.VOID: 'VOID'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.NAME: 'NAME'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DELETE: 'DELETE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATE: 'DATE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SOME: 'SOME'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>}
TABLE_ALIAS_TOKENS = {<TokenType.SHOW: 'SHOW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SINK: 'SINK'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.MAP: 'MAP'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.RENAME: 'RENAME'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UINT128: 'UINT128'>, <TokenType.STAGE: 'STAGE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DIV: 'DIV'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.XML: 'XML'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.PUT: 'PUT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IS: 'IS'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.VAR: 'VAR'>, <TokenType.CUBE: 'CUBE'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.INT128: 'INT128'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.UINT: 'UINT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.COPY: 'COPY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BLOB: 'BLOB'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UUID: 'UUID'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.CASE: 'CASE'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANY: 'ANY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.END: 'END'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATE32: 'DATE32'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MERGE: 'MERGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.SEMI: 'SEMI'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.BINARY: 'BINARY'>, <TokenType.RING: 'RING'>, <TokenType.TAG: 'TAG'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.GET: 'GET'>, <TokenType.POINT: 'POINT'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TOP: 'TOP'>, <TokenType.UINT256: 'UINT256'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FIRST: 'FIRST'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TRUE: 'TRUE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.ALL: 'ALL'>, <TokenType.KILL: 'KILL'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.SET: 'SET'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.LIST: 'LIST'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INET: 'INET'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.VOID: 'VOID'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.NAME: 'NAME'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DELETE: 'DELETE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATE: 'DATE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SOME: 'SOME'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>}
COMMENT_TABLE_ALIAS_TOKENS = {<TokenType.SHOW: 'SHOW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SINK: 'SINK'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.MAP: 'MAP'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.RENAME: 'RENAME'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UINT128: 'UINT128'>, <TokenType.STAGE: 'STAGE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DIV: 'DIV'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.XML: 'XML'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.PUT: 'PUT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.VAR: 'VAR'>, <TokenType.CUBE: 'CUBE'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.INT128: 'INT128'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.UINT: 'UINT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.COPY: 'COPY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BLOB: 'BLOB'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UUID: 'UUID'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.CASE: 'CASE'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANY: 'ANY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.END: 'END'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATE32: 'DATE32'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MERGE: 'MERGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.RING: 'RING'>, <TokenType.TAG: 'TAG'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.GET: 'GET'>, <TokenType.POINT: 'POINT'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TOP: 'TOP'>, <TokenType.UINT256: 'UINT256'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FIRST: 'FIRST'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TRUE: 'TRUE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.ALL: 'ALL'>, <TokenType.KILL: 'KILL'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.SET: 'SET'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.LIST: 'LIST'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INET: 'INET'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.VOID: 'VOID'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.NAME: 'NAME'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DELETE: 'DELETE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATE: 'DATE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SOME: 'SOME'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>}
UPDATE_ALIAS_TOKENS = {<TokenType.SHOW: 'SHOW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SINK: 'SINK'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.MAP: 'MAP'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.RENAME: 'RENAME'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UINT128: 'UINT128'>, <TokenType.STAGE: 'STAGE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DIV: 'DIV'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.XML: 'XML'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.PUT: 'PUT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IS: 'IS'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.VAR: 'VAR'>, <TokenType.CUBE: 'CUBE'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.INT128: 'INT128'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.UINT: 'UINT'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.COPY: 'COPY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.BLOB: 'BLOB'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.UUID: 'UUID'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.CASE: 'CASE'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANY: 'ANY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.END: 'END'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.ROW: 'ROW'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATE32: 'DATE32'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MERGE: 'MERGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.RING: 'RING'>, <TokenType.TAG: 'TAG'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.GET: 'GET'>, <TokenType.POINT: 'POINT'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TOP: 'TOP'>, <TokenType.UINT256: 'UINT256'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FIRST: 'FIRST'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TRUE: 'TRUE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.ALL: 'ALL'>, <TokenType.KILL: 'KILL'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.LIST: 'LIST'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INET: 'INET'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.VOID: 'VOID'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.NAME: 'NAME'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.INT: 'INT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INT256: 'INT256'>, <TokenType.DELETE: 'DELETE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.DATE: 'DATE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SOME: 'SOME'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>}
FUNCTIONS = {'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ADD_MONTHS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AddMonths'>>, 'AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.And'>>, 'ANONYMOUS_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnonymousAggFunc'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPLY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Apply'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <function Parser.<lambda>>, 'ARRAY_AGG': <function Parser.<lambda>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONCAT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcatAgg'>>, 'ARRAY_CONSTRUCT_COMPACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConstructCompact'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_CONTAINS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'ARRAY_HAS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_INTERSECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayIntersect'>>, 'ARRAY_INTERSECTION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayIntersect'>>, 'ARRAY_OVERLAPS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayOverlaps'>>, 'ARRAY_REMOVE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayRemove'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySort'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_TO_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CBRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cbrt'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <function Parser.<lambda>>, 'CHAR': <function Parser.<lambda>>, 'COALESCE': <function build_coalesce>, 'IFNULL': <function build_coalesce>, 'NVL': <function build_coalesce>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COLUMNS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Columns'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Contains'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CONVERT_TIMEZONE': <function build_convert_timezone>, 'CONVERT_TO_CHARSET': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConvertToCharset'>>, 'CORR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Corr'>>, 'COUNT': <function Parser.<lambda>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COUNTIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COVAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarPop'>>, 'COVAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarSamp'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_SCHEMA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentSchema'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <function _build_date>, 'DATE_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_BIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateBin'>>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <function BigQuery.Parser.<lambda>>, 'DATETIME': <function _build_datetime>, 'DATETIME_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Day'>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK_ISO': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeekIso'>>, 'ISODOW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeekIso'>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'ENDS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.EndsWith'>>, 'ENDSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.EndsWith'>>, 'EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exists'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXPLODING_GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodingGenerateSeries'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FEATURES_AT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FeaturesAtTime'>>, 'FIRST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.First'>>, 'FIRST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FirstValue'>>, 'FLATTEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Flatten'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'FROM_ISO8601_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromISO8601Timestamp'>>, 'GAP_FILL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GapFill'>>, 'GENERATE_DATE_ARRAY': <function Parser.<lambda>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GENERATE_TIMESTAMP_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateTimestampArray'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <function build_hex>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'IIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'INLINE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Inline'>>, 'INT64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Int64'>>, 'IS_ASCII': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsAscii'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBContains'>>, 'JSONB_EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExists'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'J_S_O_N_B_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBObjectAgg'>>, 'J_S_O_N_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONCast'>>, 'J_S_O_N_EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExists'>>, 'JSON_EXTRACT': <function build_extract_json_with_path.<locals>._builder>, 'JSON_EXTRACT_ARRAY': <function _build_extract_json_with_default_path.<locals>._builder>, 'JSON_EXTRACT_SCALAR': <function _build_extract_json_with_default_path.<locals>._builder>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'J_S_O_N_VALUE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONValueArray'>>, 'LAG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lag'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastValue'>>, 'LEAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lead'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <function BigQuery.Parser.<lambda>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CHAR_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CHARACTER_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.List'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function build_logarithm>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <function build_lower>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LOWER_HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LowerHex'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAKE_INTERVAL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MakeInterval'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MEDIAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Median'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Month'>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NORMALIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Normalize'>>, 'NTH_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NthValue'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OBJECT_INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ObjectInsert'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Or'>>, 'OVERLAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Overlay'>>, 'PAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pad'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'QUARTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quarter'>>, 'RAND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDOM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Randn'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <function _build_regexp_extract.<locals>._builder>, 'REGEXP_EXTRACT_ALL': <function _build_regexp_extract.<locals>._builder>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SIGN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SIGNUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <function BigQuery.Parser.<lambda>>, 'SPLIT_PART': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SplitPart'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'ST_DISTANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StDistance'>>, 'ST_POINT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StPoint'>>, 'ST_MAKEPOINT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StPoint'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToDate'>>, 'STR_TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToMap'>>, 'STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToTime'>>, 'STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrToUnix'>>, 'STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.String'>>, 'STRING_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'SPLIT_BY_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRTOK_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUBSTR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME': <function _build_time>, 'TIME_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIMEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <function _build_timestamp>, 'TIMESTAMP_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'TIMESTAMPDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDays'>>, 'TO_DOUBLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDouble'>>, 'TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToMap'>>, 'TO_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToNumber'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Try'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'TS_OR_DS_TO_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDatetime'>>, 'TS_OR_DS_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTime'>>, 'TS_OR_DS_TO_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTimestamp'>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNICODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unicode'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, 'UNIX_SECONDS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixSeconds'>>, 'UNIX_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToStr'>>, 'UNIX_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNIX_TO_TIME_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTimeStr'>>, 'UNNEST': <function Parser.<lambda>>, 'UPPER': <function build_upper>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GEN_RANDOM_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GENERATE_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'UUID_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'VAR_MAP': <function build_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Week'>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'XMLELEMENT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLElement'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Year'>>, 'ARRAYAGG': <function Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'JSON_EXTRACT_PATH_TEXT': <function build_extract_json_with_path.<locals>._builder>, 'LIKE': <function build_like>, 'LOG2': <function Parser.<lambda>>, 'LOG10': <function Parser.<lambda>>, 'LPAD': <function Parser.<lambda>>, 'LEFTPAD': <function Parser.<lambda>>, 'LTRIM': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'RIGHTPAD': <function Parser.<lambda>>, 'RPAD': <function Parser.<lambda>>, 'RTRIM': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'STRPOS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'CHARINDEX': <function Parser.<lambda>>, 'INSTR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'LOCATE': <function Parser.<lambda>>, 'TO_HEX': <function _build_to_hex>, 'CONTAINS_SUBSTR': <function _build_contains_substring>, 'DIV': <function binary_from_function.<locals>.<lambda>>, 'EDIT_DISTANCE': <function _build_levenshtein>, 'FORMAT_DATE': <function _build_format_time.<locals>._builder>, 'GENERATE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'JSON_QUERY': <function build_extract_json_with_path.<locals>._builder>, 'JSON_QUERY_ARRAY': <function _build_extract_json_with_default_path.<locals>._builder>, 'JSON_VALUE': <function _build_extract_json_with_default_path.<locals>._builder>, 'JSON_VALUE_ARRAY': <function _build_extract_json_with_default_path.<locals>._builder>, 'PARSE_DATE': <function BigQuery.Parser.<lambda>>, 'PARSE_TIMESTAMP': <function _build_parse_timestamp>, 'REGEXP_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_SUBSTR': <function _build_regexp_extract.<locals>._builder>, 'SHA256': <function BigQuery.Parser.<lambda>>, 'SHA512': <function BigQuery.Parser.<lambda>>, 'TIMESTAMP_MICROS': <function BigQuery.Parser.<lambda>>, 'TIMESTAMP_MILLIS': <function BigQuery.Parser.<lambda>>, 'TIMESTAMP_SECONDS': <function BigQuery.Parser.<lambda>>, 'TO_JSON_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'FORMAT_DATETIME': <function _build_format_time.<locals>._builder>, 'FORMAT_TIMESTAMP': <function _build_format_time.<locals>._builder>}
FUNCTION_PARSERS = {'ARG_MAX': <function Parser.<dictcomp>.<lambda>>, 'ARGMAX': <function Parser.<dictcomp>.<lambda>>, 'MAX_BY': <function Parser.<dictcomp>.<lambda>>, 'ARG_MIN': <function Parser.<dictcomp>.<lambda>>, 'ARGMIN': <function Parser.<dictcomp>.<lambda>>, 'MIN_BY': <function Parser.<dictcomp>.<lambda>>, 'CAST': <function Parser.<lambda>>, 'CEIL': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'FLOOR': <function Parser.<lambda>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'NORMALIZE': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'OVERLAY': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'XMLELEMENT': <function Parser.<lambda>>, 'XMLTABLE': <function Parser.<lambda>>, 'ARRAY': <function BigQuery.Parser.<lambda>>, 'MAKE_INTERVAL': <function BigQuery.Parser.<lambda>>, 'FEATURES_AT_TIME': <function BigQuery.Parser.<lambda>>}
NO_PAREN_FUNCTIONS = {<TokenType.CURRENT_DATE: 'CURRENT_DATE'>: <class 'sqlglot.expressions.CurrentDate'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>: <class 'sqlglot.expressions.CurrentDatetime'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>: <class 'sqlglot.expressions.CurrentTime'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>: <class 'sqlglot.expressions.CurrentTimestamp'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>: <class 'sqlglot.expressions.CurrentUser'>}
NESTED_TYPE_TOKENS = {<TokenType.TABLE: 'TABLE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.RANGE: 'RANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UNION: 'UNION'>, <TokenType.MAP: 'MAP'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.ARRAY: 'ARRAY'>}
PROPERTY_PARSERS = {'ALLOWED_VALUES': <function Parser.<lambda>>, 'ALGORITHM': <function Parser.<lambda>>, 'AUTO': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'BACKUP': <function Parser.<lambda>>, 'BLOCKCOMPRESSION': <function Parser.<lambda>>, 'CHARSET': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECKSUM': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'CONTAINS': <function Parser.<lambda>>, 'COPY': <function Parser.<lambda>>, 'DATABLOCKSIZE': <function Parser.<lambda>>, 'DATA_DELETION': <function Parser.<lambda>>, 'DEFINER': <function Parser.<lambda>>, 'DETERMINISTIC': <function Parser.<lambda>>, 'DISTRIBUTED': <function Parser.<lambda>>, 'DUPLICATE': <function Parser.<lambda>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'EMPTY': <function Parser.<lambda>>, 'ENGINE': <function Parser.<lambda>>, 'ENVIRONMENT': <function Parser.<lambda>>, 'EXECUTE': <function Parser.<lambda>>, 'EXTERNAL': <function Parser.<lambda>>, 'FALLBACK': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'FREESPACE': <function Parser.<lambda>>, 'GLOBAL': <function Parser.<lambda>>, 'HEAP': <function Parser.<lambda>>, 'ICEBERG': <function Parser.<lambda>>, 'IMMUTABLE': <function Parser.<lambda>>, 'INHERITS': <function Parser.<lambda>>, 'INPUT': <function Parser.<lambda>>, 'JOURNAL': <function Parser.<lambda>>, 'LANGUAGE': <function Parser.<lambda>>, 'LAYOUT': <function Parser.<lambda>>, 'LIFETIME': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'LOCATION': <function Parser.<lambda>>, 'LOCK': <function Parser.<lambda>>, 'LOCKING': <function Parser.<lambda>>, 'LOG': <function Parser.<lambda>>, 'MATERIALIZED': <function Parser.<lambda>>, 'MERGEBLOCKRATIO': <function Parser.<lambda>>, 'MODIFIES': <function Parser.<lambda>>, 'MULTISET': <function Parser.<lambda>>, 'NO': <function Parser.<lambda>>, 'ON': <function Parser.<lambda>>, 'ORDER BY': <function Parser.<lambda>>, 'OUTPUT': <function Parser.<lambda>>, 'PARTITION': <function Parser.<lambda>>, 'PARTITION BY': <function Parser.<lambda>>, 'PARTITIONED BY': <function Parser.<lambda>>, 'PARTITIONED_BY': <function Parser.<lambda>>, 'PRIMARY KEY': <function Parser.<lambda>>, 'RANGE': <function Parser.<lambda>>, 'READS': <function Parser.<lambda>>, 'REMOTE': <function Parser.<lambda>>, 'RETURNS': <function Parser.<lambda>>, 'STRICT': <function Parser.<lambda>>, 'STREAMING': <function Parser.<lambda>>, 'ROW': <function Parser.<lambda>>, 'ROW_FORMAT': <function Parser.<lambda>>, 'SAMPLE': <function Parser.<lambda>>, 'SECURE': <function Parser.<lambda>>, 'SECURITY': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'SETTINGS': <function Parser.<lambda>>, 'SHARING': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'SOURCE': <function Parser.<lambda>>, 'STABLE': <function Parser.<lambda>>, 'STORED': <function Parser.<lambda>>, 'SYSTEM_VERSIONING': <function Parser.<lambda>>, 'TBLPROPERTIES': <function Parser.<lambda>>, 'TEMP': <function Parser.<lambda>>, 'TEMPORARY': <function Parser.<lambda>>, 'TO': <function Parser.<lambda>>, 'TRANSIENT': <function Parser.<lambda>>, 'TRANSFORM': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'USING': <function Parser.<lambda>>, 'UNLOGGED': <function Parser.<lambda>>, 'VOLATILE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>, 'NOT DETERMINISTIC': <function BigQuery.Parser.<lambda>>, 'OPTIONS': <function BigQuery.Parser.<lambda>>}
CONSTRAINT_PARSERS = {'AUTOINCREMENT': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'CASESPECIFIC': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECK': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'COMPRESS': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'NONCLUSTERED': <function Parser.<lambda>>, 'DEFAULT': <function Parser.<lambda>>, 'ENCODE': <function Parser.<lambda>>, 'EPHEMERAL': <function Parser.<lambda>>, 'EXCLUDE': <function Parser.<lambda>>, 'FOREIGN KEY': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'GENERATED': <function Parser.<lambda>>, 'IDENTITY': <function Parser.<lambda>>, 'INLINE': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'NOT': <function Parser.<lambda>>, 'NULL': <function Parser.<lambda>>, 'ON': <function Parser.<lambda>>, 'PATH': <function Parser.<lambda>>, 'PERIOD': <function Parser.<lambda>>, 'PRIMARY KEY': <function Parser.<lambda>>, 'REFERENCES': <function Parser.<lambda>>, 'TITLE': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'UNIQUE': <function Parser.<lambda>>, 'UPPERCASE': <function Parser.<lambda>>, 'WATERMARK': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>, 'BUCKET': <function Parser.<lambda>>, 'TRUNCATE': <function Parser.<lambda>>, 'OPTIONS': <function BigQuery.Parser.<lambda>>}
RANGE_PARSERS = {<TokenType.AT_GT: 'AT_GT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.LT_AT: 'LT_AT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>}
NULL_TOKENS = {<TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.NULL: 'NULL'>}
DASHED_TABLE_PART_FOLLOW_TOKENS = {<TokenType.DOT: 'DOT'>, <TokenType.L_PAREN: 'L_PAREN'>, <TokenType.R_PAREN: 'R_PAREN'>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.ANALYZE: 'ANALYZE'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COPY: 'COPY'>: <function Parser.<lambda>>, <TokenType.CREATE: 'CREATE'>: <function Parser.<lambda>>, <TokenType.DELETE: 'DELETE'>: <function Parser.<lambda>>, <TokenType.DESC: 'DESC'>: <function Parser.<lambda>>, <TokenType.DESCRIBE: 'DESCRIBE'>: <function Parser.<lambda>>, <TokenType.DROP: 'DROP'>: <function Parser.<lambda>>, <TokenType.GRANT: 'GRANT'>: <function Parser.<lambda>>, <TokenType.INSERT: 'INSERT'>: <function Parser.<lambda>>, <TokenType.KILL: 'KILL'>: <function Parser.<lambda>>, <TokenType.LOAD: 'LOAD'>: <function Parser.<lambda>>, <TokenType.MERGE: 'MERGE'>: <function Parser.<lambda>>, <TokenType.PIVOT: 'PIVOT'>: <function Parser.<lambda>>, <TokenType.PRAGMA: 'PRAGMA'>: <function Parser.<lambda>>, <TokenType.REFRESH: 'REFRESH'>: <function Parser.<lambda>>, <TokenType.ROLLBACK: 'ROLLBACK'>: <function Parser.<lambda>>, <TokenType.SET: 'SET'>: <function Parser.<lambda>>, <TokenType.TRUNCATE: 'TRUNCATE'>: <function Parser.<lambda>>, <TokenType.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UNPIVOT: 'UNPIVOT'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <function Parser.<lambda>>, <TokenType.SEMICOLON: 'SEMICOLON'>: <function Parser.<lambda>>, <TokenType.ELSE: 'ELSE'>: <function BigQuery.Parser.<lambda>>, <TokenType.END: 'END'>: <function BigQuery.Parser.<lambda>>, <TokenType.FOR: 'FOR'>: <function BigQuery.Parser.<lambda>>, <TokenType.EXPORT: 'EXPORT'>: <function BigQuery.Parser.<lambda>>}
BRACKET_OFFSETS = {'OFFSET': (0, False), 'ORDINAL': (1, False), 'SAFE_OFFSET': (0, True), 'SAFE_ORDINAL': (1, True)}
SHOW_TRIE: Dict = {}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}

##### Inherited Members

sqlglot.parser.Parser
  Parser
  STRUCT_TYPE_TOKENS
  ENUM_TYPE_TOKENS
  AGGREGATE_TYPE_TOKENS
  TYPE_TOKENS
  SIGNED_TO_UNSIGNED_TYPE_TOKEN
  SUBQUERY_PREDICATES
  RESERVED_TOKENS
  DB_CREATABLES
  CREATABLES
  ALTERABLES
  COLON_PLACEHOLDER_TOKENS
  ARRAY_CONSTRUCTORS
  TRIM_TYPES
  FUNC_TOKENS
  CONJUNCTION
  ASSIGNMENT
  DISJUNCTION
  EQUALITY
  COMPARISON
  BITWISE
  TERM
  FACTOR
  EXPONENT
  TIMES
  TIMESTAMPS
  SET_OPERATIONS
  JOIN_METHODS
  JOIN_SIDES
  JOIN_KINDS
  JOIN_HINTS
  LAMBDAS
  COLUMN_OPERATORS
  EXPRESSION_PARSERS
  UNARY_PARSERS
  STRING_PARSERS
  NUMERIC_PARSERS
  PRIMARY_PARSERS
  PLACEHOLDER_PARSERS
  PIPE_SYNTAX_TRANSFORM_PARSERS
  ALTER_PARSERS
  ALTER_ALTER_PARSERS
  SCHEMA_UNNAMED_CONSTRAINTS
  NO_PAREN_FUNCTION_PARSERS
  INVALID_FUNC_NAME_TOKENS
  FUNCTIONS_WITH_ALIASED_ARGS
  KEY_VALUE_DEFINITIONS
  QUERY_MODIFIER_PARSERS
  SET_PARSERS
  SHOW_PARSERS
  TYPE_LITERAL_PARSERS
  TYPE_CONVERTERS
  DDL_SELECT_TOKENS
  PRE_VOLATILE_TOKENS
  TRANSACTION_KIND
  TRANSACTION_CHARACTERISTICS
  CONFLICT_ACTIONS
  CREATE_SEQUENCE
  ISOLATED_LOADING_OPTIONS
  USABLES
  CAST_ACTIONS
  SCHEMA_BINDING_OPTIONS
  PROCEDURE_OPTIONS
  EXECUTE_AS_OPTIONS
  KEY_CONSTRAINT_OPTIONS
  WINDOW_EXCLUDE_OPTIONS
  INSERT_ALTERNATIVES
  CLONE_KEYWORDS
  HISTORICAL_DATA_PREFIX
  HISTORICAL_DATA_KIND
  OPCLASS_FOLLOW_KEYWORDS
  OPTYPE_FOLLOW_TOKENS
  TABLE_INDEX_HINT_TOKENS
  VIEW_ATTRIBUTES
  WINDOW_ALIAS_TOKENS
  WINDOW_BEFORE_PAREN_TOKENS
  WINDOW_SIDES
  JSON_KEY_VALUE_SEPARATOR_TOKENS
  FETCH_TOKENS
  ADD_CONSTRAINT_TOKENS
  DISTINCT_TOKENS
  UNNEST_OFFSET_ALIAS_TOKENS
  SELECT_START_TOKENS
  COPY_INTO_VARLEN_OPTIONS
  IS_JSON_PREDICATE_KIND
  ODBC_DATETIME_LITERALS
  ON_CONDITION_TOKENS
  PRIVILEGE_FOLLOW_TOKENS
  DESCRIBE_STYLES
  ANALYZE_STYLES
  ANALYZE_EXPRESSION_PARSERS
  PARTITION_KEYWORDS
  AMBIGUOUS_ALIAS_TOKENS
  OPERATION_MODIFIERS
  RECURSIVE_CTE_SEARCH_KIND
  MODIFIABLES
  STRICT_CAST
  IDENTIFY_PIVOT_STRINGS
  TABLESAMPLE_CSV
  DEFAULT_SAMPLING_METHOD
  SET_REQUIRES_ASSIGNMENT_DELIMITER
  TRIM_PATTERN_FIRST
  STRING_ALIASES
  MODIFIERS_ATTACHED_TO_SET_OP
  SET_OP_MODIFIERS
  NO_PAREN_IF_COMMANDS
  JSON_ARROWS_REQUIRE_JSON_TYPE
  COLON_IS_VARIANT_EXTRACT
  VALUES_FOLLOWED_BY_PAREN
  INTERVAL_SPANS
  SUPPORTS_PARTITION_SELECTION
  WRAPPED_TRANSFORM_COLUMN_CONSTRAINT
  OPTIONAL_ALIAS_TOKEN_CTE
  ALTER_RENAME_REQUIRES_COLUMN
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  parse_set_operation
  errors
  sql

class BigQuery.Generator(sqlglot.generator.Generator): View Source

     912    class Generator(generator.Generator):
     913        INTERVAL_ALLOWS_PLURAL_FORM = False
     914        JOIN_HINTS = False
     915        QUERY_HINTS = False
     916        TABLE_HINTS = False
     917        LIMIT_FETCH = "LIMIT"
     918        RENAME_TABLE_WITH_DB = False
     919        NVL2_SUPPORTED = False
     920        UNNEST_WITH_ORDINALITY = False
     921        COLLATE_IS_FUNC = True
     922        LIMIT_ONLY_LITERALS = True
     923        SUPPORTS_TABLE_ALIAS_COLUMNS = False
     924        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
     925        JSON_KEY_VALUE_PAIR_SEP = ","
     926        NULL_ORDERING_SUPPORTED = False
     927        IGNORE_NULLS_IN_FUNC = True
     928        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
     929        CAN_IMPLEMENT_ARRAY_ANY = True
     930        SUPPORTS_TO_NUMBER = False
     931        NAMED_PLACEHOLDER_TOKEN = "@"
     932        HEX_FUNC = "TO_HEX"
     933        WITH_PROPERTIES_PREFIX = "OPTIONS"
     934        SUPPORTS_EXPLODING_PROJECTIONS = False
     935        EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE = False
     936        SUPPORTS_UNIX_SECONDS = True
     937
     938        TRANSFORMS = {
     939            **generator.Generator.TRANSFORMS,
     940            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
     941            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
     942            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
     943            exp.Array: inline_array_unless_query,
     944            exp.ArrayContains: _array_contains_sql,
     945            exp.ArrayFilter: filter_array_using_unnest,
     946            exp.ArrayRemove: filter_array_using_unnest,
     947            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
     948            exp.CollateProperty: lambda self, e: (
     949                f"DEFAULT COLLATE {self.sql(e, 'this')}"
     950                if e.args.get("default")
     951                else f"COLLATE {self.sql(e, 'this')}"
     952            ),
     953            exp.Commit: lambda *_: "COMMIT TRANSACTION",
     954            exp.CountIf: rename_func("COUNTIF"),
     955            exp.Create: _create_sql,
     956            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
     957            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
     958            exp.DateDiff: lambda self, e: self.func(
     959                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
     960            ),
     961            exp.DateFromParts: rename_func("DATE"),
     962            exp.DateStrToDate: datestrtodate_sql,
     963            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
     964            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
     965            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
     966            exp.DateTrunc: lambda self, e: self.func(
     967                "DATE_TRUNC", e.this, e.text("unit"), e.args.get("zone")
     968            ),
     969            exp.FromTimeZone: lambda self, e: self.func(
     970                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
     971            ),
     972            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
     973            exp.GroupConcat: lambda self, e: groupconcat_sql(
     974                self, e, func_name="STRING_AGG", within_group=False
     975            ),
     976            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
     977            exp.HexString: lambda self, e: self.hexstring_sql(e, binary_function_repr="FROM_HEX"),
     978            exp.If: if_sql(false_value="NULL"),
     979            exp.ILike: no_ilike_sql,
     980            exp.IntDiv: rename_func("DIV"),
     981            exp.Int64: rename_func("INT64"),
     982            exp.JSONExtract: _json_extract_sql,
     983            exp.JSONExtractArray: _json_extract_sql,
     984            exp.JSONExtractScalar: _json_extract_sql,
     985            exp.JSONFormat: rename_func("TO_JSON_STRING"),
     986            exp.Levenshtein: _levenshtein_sql,
     987            exp.Max: max_or_greatest,
     988            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
     989            exp.MD5Digest: rename_func("MD5"),
     990            exp.Min: min_or_least,
     991            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
     992            exp.RegexpExtract: lambda self, e: self.func(
     993                "REGEXP_EXTRACT",
     994                e.this,
     995                e.expression,
     996                e.args.get("position"),
     997                e.args.get("occurrence"),
     998            ),
     999            exp.RegexpExtractAll: lambda self, e: self.func(
    1000                "REGEXP_EXTRACT_ALL", e.this, e.expression
    1001            ),
    1002            exp.RegexpReplace: regexp_replace_sql,
    1003            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    1004            exp.ReturnsProperty: _returnsproperty_sql,
    1005            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    1006            exp.Select: transforms.preprocess(
    1007                [
    1008                    transforms.explode_projection_to_unnest(),
    1009                    transforms.unqualify_unnest,
    1010                    transforms.eliminate_distinct_on,
    1011                    _alias_ordered_group,
    1012                    transforms.eliminate_semi_and_anti_joins,
    1013                ]
    1014            ),
    1015            exp.SHA: rename_func("SHA1"),
    1016            exp.SHA2: sha256_sql,
    1017            exp.StabilityProperty: lambda self, e: (
    1018                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    1019            ),
    1020            exp.String: rename_func("STRING"),
    1021            exp.StrPosition: lambda self, e: (
    1022                strposition_sql(
    1023                    self, e, func_name="INSTR", supports_position=True, supports_occurrence=True
    1024                )
    1025            ),
    1026            exp.StrToDate: _str_to_datetime_sql,
    1027            exp.StrToTime: _str_to_datetime_sql,
    1028            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    1029            exp.TimeFromParts: rename_func("TIME"),
    1030            exp.TimestampFromParts: rename_func("DATETIME"),
    1031            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    1032            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    1033            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    1034            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    1035            exp.TimeStrToTime: timestrtotime_sql,
    1036            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    1037            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    1038            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    1039            exp.TsOrDsToTime: rename_func("TIME"),
    1040            exp.TsOrDsToDatetime: rename_func("DATETIME"),
    1041            exp.TsOrDsToTimestamp: rename_func("TIMESTAMP"),
    1042            exp.Unhex: rename_func("FROM_HEX"),
    1043            exp.UnixDate: rename_func("UNIX_DATE"),
    1044            exp.UnixToTime: _unix_to_time_sql,
    1045            exp.Uuid: lambda *_: "GENERATE_UUID()",
    1046            exp.Values: _derived_table_values_to_unnest,
    1047            exp.VariancePop: rename_func("VAR_POP"),
    1048            exp.SafeDivide: rename_func("SAFE_DIVIDE"),
    1049        }
    1050
    1051        SUPPORTED_JSON_PATH_PARTS = {
    1052            exp.JSONPathKey,
    1053            exp.JSONPathRoot,
    1054            exp.JSONPathSubscript,
    1055        }
    1056
    1057        TYPE_MAPPING = {
    1058            **generator.Generator.TYPE_MAPPING,
    1059            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    1060            exp.DataType.Type.BIGINT: "INT64",
    1061            exp.DataType.Type.BINARY: "BYTES",
    1062            exp.DataType.Type.BLOB: "BYTES",
    1063            exp.DataType.Type.BOOLEAN: "BOOL",
    1064            exp.DataType.Type.CHAR: "STRING",
    1065            exp.DataType.Type.DECIMAL: "NUMERIC",
    1066            exp.DataType.Type.DOUBLE: "FLOAT64",
    1067            exp.DataType.Type.FLOAT: "FLOAT64",
    1068            exp.DataType.Type.INT: "INT64",
    1069            exp.DataType.Type.NCHAR: "STRING",
    1070            exp.DataType.Type.NVARCHAR: "STRING",
    1071            exp.DataType.Type.SMALLINT: "INT64",
    1072            exp.DataType.Type.TEXT: "STRING",
    1073            exp.DataType.Type.TIMESTAMP: "DATETIME",
    1074            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
    1075            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    1076            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    1077            exp.DataType.Type.TINYINT: "INT64",
    1078            exp.DataType.Type.ROWVERSION: "BYTES",
    1079            exp.DataType.Type.UUID: "STRING",
    1080            exp.DataType.Type.VARBINARY: "BYTES",
    1081            exp.DataType.Type.VARCHAR: "STRING",
    1082            exp.DataType.Type.VARIANT: "ANY TYPE",
    1083        }
    1084
    1085        PROPERTIES_LOCATION = {
    1086            **generator.Generator.PROPERTIES_LOCATION,
    1087            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    1088            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    1089        }
    1090
    1091        # WINDOW comes after QUALIFY
    1092        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    1093        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    1094            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    1095            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    1096        }
    1097
    1098        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    1099        RESERVED_KEYWORDS = {
    1100            "all",
    1101            "and",
    1102            "any",
    1103            "array",
    1104            "as",
    1105            "asc",
    1106            "assert_rows_modified",
    1107            "at",
    1108            "between",
    1109            "by",
    1110            "case",
    1111            "cast",
    1112            "collate",
    1113            "contains",
    1114            "create",
    1115            "cross",
    1116            "cube",
    1117            "current",
    1118            "default",
    1119            "define",
    1120            "desc",
    1121            "distinct",
    1122            "else",
    1123            "end",
    1124            "enum",
    1125            "escape",
    1126            "except",
    1127            "exclude",
    1128            "exists",
    1129            "extract",
    1130            "false",
    1131            "fetch",
    1132            "following",
    1133            "for",
    1134            "from",
    1135            "full",
    1136            "group",
    1137            "grouping",
    1138            "groups",
    1139            "hash",
    1140            "having",
    1141            "if",
    1142            "ignore",
    1143            "in",
    1144            "inner",
    1145            "intersect",
    1146            "interval",
    1147            "into",
    1148            "is",
    1149            "join",
    1150            "lateral",
    1151            "left",
    1152            "like",
    1153            "limit",
    1154            "lookup",
    1155            "merge",
    1156            "natural",
    1157            "new",
    1158            "no",
    1159            "not",
    1160            "null",
    1161            "nulls",
    1162            "of",
    1163            "on",
    1164            "or",
    1165            "order",
    1166            "outer",
    1167            "over",
    1168            "partition",
    1169            "preceding",
    1170            "proto",
    1171            "qualify",
    1172            "range",
    1173            "recursive",
    1174            "respect",
    1175            "right",
    1176            "rollup",
    1177            "rows",
    1178            "select",
    1179            "set",
    1180            "some",
    1181            "struct",
    1182            "tablesample",
    1183            "then",
    1184            "to",
    1185            "treat",
    1186            "true",
    1187            "unbounded",
    1188            "union",
    1189            "unnest",
    1190            "using",
    1191            "when",
    1192            "where",
    1193            "window",
    1194            "with",
    1195            "within",
    1196        }
    1197
    1198        def mod_sql(self, expression: exp.Mod) -> str:
    1199            this = expression.this
    1200            expr = expression.expression
    1201            return self.func(
    1202                "MOD",
    1203                this.unnest() if isinstance(this, exp.Paren) else this,
    1204                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    1205            )
    1206
    1207        def column_parts(self, expression: exp.Column) -> str:
    1208            if expression.meta.get("quoted_column"):
    1209                # If a column reference is of the form `dataset.table`.name, we need
    1210                # to preserve the quoted table path, otherwise the reference breaks
    1211                table_parts = ".".join(p.name for p in expression.parts[:-1])
    1212                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    1213                return f"{table_path}.{self.sql(expression, 'this')}"
    1214
    1215            return super().column_parts(expression)
    1216
    1217        def table_parts(self, expression: exp.Table) -> str:
    1218            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    1219            # we need to make sure the correct quoting is used in each case.
    1220            #
    1221            # For example, if there is a CTE x that clashes with a schema name, then the former will
    1222            # return the table y in that schema, whereas the latter will return the CTE's y column:
    1223            #
    1224            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    1225            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    1226            if expression.meta.get("quoted_table"):
    1227                table_parts = ".".join(p.name for p in expression.parts)
    1228                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    1229
    1230            return super().table_parts(expression)
    1231
    1232        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    1233            this = expression.this
    1234            if isinstance(this, exp.TsOrDsToDatetime):
    1235                func_name = "FORMAT_DATETIME"
    1236            elif isinstance(this, exp.TsOrDsToTimestamp):
    1237                func_name = "FORMAT_TIMESTAMP"
    1238            else:
    1239                func_name = "FORMAT_DATE"
    1240
    1241            time_expr = (
    1242                this
    1243                if isinstance(this, (exp.TsOrDsToDatetime, exp.TsOrDsToTimestamp, exp.TsOrDsToDate))
    1244                else expression
    1245            )
    1246            return self.func(
    1247                func_name, self.format_time(expression), time_expr.this, expression.args.get("zone")
    1248            )
    1249
    1250        def eq_sql(self, expression: exp.EQ) -> str:
    1251            # Operands of = cannot be NULL in BigQuery
    1252            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    1253                if not isinstance(expression.parent, exp.Update):
    1254                    return "NULL"
    1255
    1256            return self.binary(expression, "=")
    1257
    1258        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1259            parent = expression.parent
    1260
    1261            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    1262            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    1263            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    1264                return self.func(
    1265                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    1266                )
    1267
    1268            return super().attimezone_sql(expression)
    1269
    1270        def trycast_sql(self, expression: exp.TryCast) -> str:
    1271            return self.cast_sql(expression, safe_prefix="SAFE_")
    1272
    1273        def bracket_sql(self, expression: exp.Bracket) -> str:
    1274            this = expression.this
    1275            expressions = expression.expressions
    1276
    1277            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    1278                arg = expressions[0]
    1279                if arg.type is None:
    1280                    from sqlglot.optimizer.annotate_types import annotate_types
    1281
    1282                    arg = annotate_types(arg, dialect=self.dialect)
    1283
    1284                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    1285                    # BQ doesn't support bracket syntax with string values for structs
    1286                    return f"{self.sql(this)}.{arg.name}"
    1287
    1288            expressions_sql = self.expressions(expression, flat=True)
    1289            offset = expression.args.get("offset")
    1290
    1291            if offset == 0:
    1292                expressions_sql = f"OFFSET({expressions_sql})"
    1293            elif offset == 1:
    1294                expressions_sql = f"ORDINAL({expressions_sql})"
    1295            elif offset is not None:
    1296                self.unsupported(f"Unsupported array offset: {offset}")
    1297
    1298            if expression.args.get("safe"):
    1299                expressions_sql = f"SAFE_{expressions_sql}"
    1300
    1301            return f"{self.sql(this)}[{expressions_sql}]"
    1302
    1303        def in_unnest_op(self, expression: exp.Unnest) -> str:
    1304            return self.sql(expression)
    1305
    1306        def version_sql(self, expression: exp.Version) -> str:
    1307            if expression.name == "TIMESTAMP":
    1308                expression.set("this", "SYSTEM_TIME")
    1309            return super().version_sql(expression)
    1310
    1311        def contains_sql(self, expression: exp.Contains) -> str:
    1312            this = expression.this
    1313            expr = expression.expression
    1314
    1315            if isinstance(this, exp.Lower) and isinstance(expr, exp.Lower):
    1316                this = this.this
    1317                expr = expr.this
    1318
    1319            return self.func("CONTAINS_SUBSTR", this, expr)
    1320
    1321        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1322            this = expression.this
    1323
    1324            # This ensures that inline type-annotated ARRAY literals like ARRAY<INT64>[1, 2, 3]
    1325            # are roundtripped unaffected. The inner check excludes ARRAY(SELECT ...) expressions,
    1326            # because they aren't literals and so the above syntax is invalid BigQuery.
    1327            if isinstance(this, exp.Array):
    1328                elem = seq_get(this.expressions, 0)
    1329                if not (elem and elem.find(exp.Query)):
    1330                    return f"{self.sql(expression, 'to')}{self.sql(this)}"
    1331
    1332            return super().cast_sql(expression, safe_prefix=safe_prefix)

Generator converts a given syntax tree to the corresponding SQL string.

###### Arguments:

- pretty: Whether to format the produced SQL string. Default: False.
- 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 or 'always': Always quote. 'safe': Only quote identifiers that are case insensitive.
- normalize: Whether to normalize identifiers to lowercase. Default: False.
- pad: The pad size in a formatted string. For example, this affects the indentation of a projection in a query, relative to its nesting level. Default: 2.
- indent: The indentation size in a formatted string. For example, this affects the indentation of subqueries and filters under a `WHERE` clause. Default: 2.
- normalize_functions: How to normalize function names. Possible values are: "upper" or True (default): Convert names to uppercase. "lower": Convert names to lowercase. False: Disables function name normalization.
- unsupported_level: Determines the generator's behavior when it encounters unsupported expressions. Default ErrorLevel.WARN.
- max_unsupported: Maximum number of unsupported messages to include in a raised UnsupportedError. This is only relevant if unsupported_level is ErrorLevel.RAISE. Default: 3
- leading_comma: Whether the comma is leading or trailing in select expressions. This is only relevant when generating in pretty mode. Default: False
- max_text_width: The max number of characters in a segment before creating new lines in pretty mode. The default is on the smaller end because the length only represents a segment and not the true line length. Default: 80
- comments: Whether to preserve comments in the output SQL code. Default: True

INTERVAL_ALLOWS_PLURAL_FORM = False
JOIN_HINTS = False
QUERY_HINTS = False
TABLE_HINTS = False
LIMIT_FETCH = 'LIMIT'
RENAME_TABLE_WITH_DB = False
NVL2_SUPPORTED = False
UNNEST_WITH_ORDINALITY = False
COLLATE_IS_FUNC = True
LIMIT_ONLY_LITERALS = True
SUPPORTS_TABLE_ALIAS_COLUMNS = False
UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
JSON_KEY_VALUE_PAIR_SEP = ','
NULL_ORDERING_SUPPORTED = False
IGNORE_NULLS_IN_FUNC = True
JSON_PATH_SINGLE_QUOTE_ESCAPE = True
CAN_IMPLEMENT_ARRAY_ANY = True
SUPPORTS_TO_NUMBER = False
NAMED_PLACEHOLDER_TOKEN = '@'
HEX_FUNC = 'TO_HEX'
WITH_PROPERTIES_PREFIX = 'OPTIONS'
SUPPORTS_EXPLODING_PROJECTIONS = False
EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE = False
SUPPORTS_UNIX_SECONDS = True
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnalyzeColumns'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnalyzeWith'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayContainsAll'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayOverlaps'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Ceil'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConnectByRoot'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConvertToCharset'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CredentialsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DynamicProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EmptyProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EnviromentProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Except'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Floor'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Get'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Intersect'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Int64'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.LanguageProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LocationProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LogProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.MaterializedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NonClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Operator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PartitionedByBucket'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PartitionByTruncate'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PivotAny'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Put'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function _returnsproperty_sql>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SharingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.Stream'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StreamingTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SwapTable'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Tags'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Union'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UsingTemplateProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UsingData'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Uuid'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithProcedureOptions'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ForceProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ApproxDistinct'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArgMax'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.ArgMin'>: <function arg_max_or_min_no_count.<locals>._arg_max_or_min_sql>, <class 'sqlglot.expressions.Array'>: <function inline_array_unless_query>, <class 'sqlglot.expressions.ArrayContains'>: <function _array_contains_sql>, <class 'sqlglot.expressions.ArrayFilter'>: <function filter_array_using_unnest>, <class 'sqlglot.expressions.ArrayRemove'>: <function filter_array_using_unnest>, <class 'sqlglot.expressions.Cast'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.CollateProperty'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.Commit'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.CountIf'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Create'>: <function _create_sql>, <class 'sqlglot.expressions.CTE'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.DateAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.DateDiff'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.DateFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.DatetimeAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.DatetimeSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.DateTrunc'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.FromTimeZone'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.GenerateSeries'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.GroupConcat'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.Hex'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.HexString'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.If'>: <function if_sql.<locals>._if_sql>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.IntDiv'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function _json_extract_sql>, <class 'sqlglot.expressions.JSONExtractArray'>: <function _json_extract_sql>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function _json_extract_sql>, <class 'sqlglot.expressions.JSONFormat'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Levenshtein'>: <function _levenshtein_sql>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.MD5'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.MD5Digest'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.PartitionedByProperty'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpExtract'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpExtractAll'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.RegexpReplace'>: <function regexp_replace_sql>, <class 'sqlglot.expressions.RegexpLike'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Rollback'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.SHA'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.SHA2'>: <function sha256_sql>, <class 'sqlglot.expressions.String'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.StrPosition'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.StrToDate'>: <function _str_to_datetime_sql>, <class 'sqlglot.expressions.StrToTime'>: <function _str_to_datetime_sql>, <class 'sqlglot.expressions.TimeAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampDiff'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeStrToTime'>: <function timestrtotime_sql>, <class 'sqlglot.expressions.Transaction'>: <function BigQuery.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function _ts_or_ds_add_sql>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function _ts_or_ds_diff_sql>, <class 'sqlglot.expressions.TsOrDsToTime'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDatetime'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TsOrDsToTimestamp'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Unhex'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.UnixDate'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.Values'>: <function _derived_table_values_to_unnest>, <class 'sqlglot.expressions.VariancePop'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.SafeDivide'>: <function rename_func.<locals>.<lambda>>}
SUPPORTED_JSON_PATH_PARTS = {<class 'sqlglot.expressions.JSONPathSubscript'>, <class 'sqlglot.expressions.JSONPathKey'>, <class 'sqlglot.expressions.JSONPathRoot'>}
TYPE_MAPPING = {<Type.DATETIME2: 'DATETIME2'>: 'TIMESTAMP', <Type.NCHAR: 'NCHAR'>: 'STRING', <Type.NVARCHAR: 'NVARCHAR'>: 'STRING', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.BLOB: 'BLOB'>: 'BYTES', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'BYTES', <Type.SMALLDATETIME: 'SMALLDATETIME'>: 'TIMESTAMP', <Type.BIGDECIMAL: 'BIGDECIMAL'>: 'BIGNUMERIC', <Type.BIGINT: 'BIGINT'>: 'INT64', <Type.BINARY: 'BINARY'>: 'BYTES', <Type.BOOLEAN: 'BOOLEAN'>: 'BOOL', <Type.CHAR: 'CHAR'>: 'STRING', <Type.DECIMAL: 'DECIMAL'>: 'NUMERIC', <Type.DOUBLE: 'DOUBLE'>: 'FLOAT64', <Type.FLOAT: 'FLOAT'>: 'FLOAT64', <Type.INT: 'INT'>: 'INT64', <Type.SMALLINT: 'SMALLINT'>: 'INT64', <Type.TEXT: 'TEXT'>: 'STRING', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP', <Type.TINYINT: 'TINYINT'>: 'INT64', <Type.UUID: 'UUID'>: 'STRING', <Type.VARBINARY: 'VARBINARY'>: 'BYTES', <Type.VARCHAR: 'VARCHAR'>: 'STRING', <Type.VARIANT: 'VARIANT'>: 'ANY TYPE'}
PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AllowedValuesProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BackupProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistributedByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DuplicateKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DataDeletionProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DynamicProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EmptyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EncodeProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EnviromentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.IncludeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedOfProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Property'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SampleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SecureProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SecurityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SharingProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SequenceProperties'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StorageHandlerProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StreamingTableProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Tags'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.TransformModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.UnloggedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.UsingTemplateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithProcedureOptions'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ForceProperty'>: <Location.POST_CREATE: 'POST_CREATE'>}
AFTER_HAVING_MODIFIER_TRANSFORMS = {'qualify': <function Generator.<lambda>>, 'windows': <function Generator.<lambda>>}
RESERVED_KEYWORDS = {'in', 'no', 'at', 'right', 'unbounded', 'cube', 'true', 'respect', 'contains', 'assert_rows_modified', 'escape', 'tablesample', 'all', 'cast', 'else', 'outer', 'on', 'grouping', 'case', 'with', 'following', 'window', 'interval', 'rollup', 'exclude', 'of', 'new', 'having', 'merge', 'cross', 'lookup', 'unnest', 'is', 'default', 'inner', 'except', 'if', 'like', 'desc', 'fetch', 'left', 'qualify', 'order', 'recursive', 'extract', 'as', 'between', 'join', 'where', 'preceding', 'some', 'hash', 'for', 'lateral', 'any', 'when', 'natural', 'proto', 'then', 'array', 'enum', 'union', 'range', 'by', 'not', 'define', 'and', 'group', 'or', 'partition', 'into', 'end', 'false', 'over', 'collate', 'struct', 'limit', 'null', 'within', 'full', 'to', 'distinct', 'from', 'nulls', 'exists', 'current', 'using', 'intersect', 'groups', 'rows', 'treat', 'asc', 'select', 'set', 'ignore', 'create'}
def mod_sql(self, expression: sqlglot.expressions.Mod) -> str: View Source

    1198        def mod_sql(self, expression: exp.Mod) -> str:
    1199            this = expression.this
    1200            expr = expression.expression
    1201            return self.func(
    1202                "MOD",
    1203                this.unnest() if isinstance(this, exp.Paren) else this,
    1204                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    1205            )

def column_parts(self, expression: sqlglot.expressions.Column) -> str: View Source

    1207        def column_parts(self, expression: exp.Column) -> str:
    1208            if expression.meta.get("quoted_column"):
    1209                # If a column reference is of the form `dataset.table`.name, we need
    1210                # to preserve the quoted table path, otherwise the reference breaks
    1211                table_parts = ".".join(p.name for p in expression.parts[:-1])
    1212                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    1213                return f"{table_path}.{self.sql(expression, 'this')}"
    1214
    1215            return super().column_parts(expression)

def table_parts(self, expression: sqlglot.expressions.Table) -> str: View Source

    1217        def table_parts(self, expression: exp.Table) -> str:
    1218            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    1219            # we need to make sure the correct quoting is used in each case.
    1220            #
    1221            # For example, if there is a CTE x that clashes with a schema name, then the former will
    1222            # return the table y in that schema, whereas the latter will return the CTE's y column:
    1223            #
    1224            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    1225            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    1226            if expression.meta.get("quoted_table"):
    1227                table_parts = ".".join(p.name for p in expression.parts)
    1228                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    1229
    1230            return super().table_parts(expression)

def timetostr_sql(self, expression: sqlglot.expressions.TimeToStr) -> str: View Source

    1232        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    1233            this = expression.this
    1234            if isinstance(this, exp.TsOrDsToDatetime):
    1235                func_name = "FORMAT_DATETIME"
    1236            elif isinstance(this, exp.TsOrDsToTimestamp):
    1237                func_name = "FORMAT_TIMESTAMP"
    1238            else:
    1239                func_name = "FORMAT_DATE"
    1240
    1241            time_expr = (
    1242                this
    1243                if isinstance(this, (exp.TsOrDsToDatetime, exp.TsOrDsToTimestamp, exp.TsOrDsToDate))
    1244                else expression
    1245            )
    1246            return self.func(
    1247                func_name, self.format_time(expression), time_expr.this, expression.args.get("zone")
    1248            )

def eq_sql(self, expression: sqlglot.expressions.EQ) -> str: View Source

    1250        def eq_sql(self, expression: exp.EQ) -> str:
    1251            # Operands of = cannot be NULL in BigQuery
    1252            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    1253                if not isinstance(expression.parent, exp.Update):
    1254                    return "NULL"
    1255
    1256            return self.binary(expression, "=")

def attimezone_sql(self, expression: sqlglot.expressions.AtTimeZone) -> str: View Source

    1258        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1259            parent = expression.parent
    1260
    1261            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    1262            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    1263            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    1264                return self.func(
    1265                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    1266                )
    1267
    1268            return super().attimezone_sql(expression)

def trycast_sql(self, expression: sqlglot.expressions.TryCast) -> str: View Source

    1270        def trycast_sql(self, expression: exp.TryCast) -> str:
    1271            return self.cast_sql(expression, safe_prefix="SAFE_")

def bracket_sql(self, expression: sqlglot.expressions.Bracket) -> str: View Source

    1273        def bracket_sql(self, expression: exp.Bracket) -> str:
    1274            this = expression.this
    1275            expressions = expression.expressions
    1276
    1277            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    1278                arg = expressions[0]
    1279                if arg.type is None:
    1280                    from sqlglot.optimizer.annotate_types import annotate_types
    1281
    1282                    arg = annotate_types(arg, dialect=self.dialect)
    1283
    1284                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    1285                    # BQ doesn't support bracket syntax with string values for structs
    1286                    return f"{self.sql(this)}.{arg.name}"
    1287
    1288            expressions_sql = self.expressions(expression, flat=True)
    1289            offset = expression.args.get("offset")
    1290
    1291            if offset == 0:
    1292                expressions_sql = f"OFFSET({expressions_sql})"
    1293            elif offset == 1:
    1294                expressions_sql = f"ORDINAL({expressions_sql})"
    1295            elif offset is not None:
    1296                self.unsupported(f"Unsupported array offset: {offset}")
    1297
    1298            if expression.args.get("safe"):
    1299                expressions_sql = f"SAFE_{expressions_sql}"
    1300
    1301            return f"{self.sql(this)}[{expressions_sql}]"

def in_unnest_op(self, expression: sqlglot.expressions.Unnest) -> str: View Source

    1303        def in_unnest_op(self, expression: exp.Unnest) -> str:
    1304            return self.sql(expression)

def version_sql(self, expression: sqlglot.expressions.Version) -> str: View Source

    1306        def version_sql(self, expression: exp.Version) -> str:
    1307            if expression.name == "TIMESTAMP":
    1308                expression.set("this", "SYSTEM_TIME")
    1309            return super().version_sql(expression)

def contains_sql(self, expression: sqlglot.expressions.Contains) -> str: View Source

    1311        def contains_sql(self, expression: exp.Contains) -> str:
    1312            this = expression.this
    1313            expr = expression.expression
    1314
    1315            if isinstance(this, exp.Lower) and isinstance(expr, exp.Lower):
    1316                this = this.this
    1317                expr = expr.this
    1318
    1319            return self.func("CONTAINS_SUBSTR", this, expr)

def cast_sql( self, expression: sqlglot.expressions.Cast, safe_prefix: Optional[str] = None) -> str: View Source

    1321        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1322            this = expression.this
    1323
    1324            # This ensures that inline type-annotated ARRAY literals like ARRAY<INT64>[1, 2, 3]
    1325            # are roundtripped unaffected. The inner check excludes ARRAY(SELECT ...) expressions,
    1326            # because they aren't literals and so the above syntax is invalid BigQuery.
    1327            if isinstance(this, exp.Array):
    1328                elem = seq_get(this.expressions, 0)
    1329                if not (elem and elem.find(exp.Query)):
    1330                    return f"{self.sql(expression, 'to')}{self.sql(this)}"
    1331
    1332            return super().cast_sql(expression, safe_prefix=safe_prefix)

TRY_SUPPORTED = False
SUPPORTS_UESCAPE = False

##### Inherited Members

sqlglot.generator.Generator
  Generator
  LOCKING_READS_SUPPORTED
  WRAP_DERIVED_VALUES
  CREATE_FUNCTION_RETURN_AS
  MATCHED_BY_SOURCE
  SINGLE_STRING_INTERVAL
  GROUPINGS_SEP
  INDEX_ON
  QUERY_HINT_SEP
  IS_BOOL_ALLOWED
  DUPLICATE_KEY_UPDATE_WITH_SET
  LIMIT_IS_TOP
  RETURNING_END
  EXTRACT_ALLOWS_QUOTES
  TZ_TO_WITH_TIME_ZONE
  SELECT_KINDS
  VALUES_AS_TABLE
  ALTER_TABLE_INCLUDE_COLUMN_KEYWORD
  AGGREGATE_FILTER_SUPPORTED
  SEMI_ANTI_JOIN_WITH_SIDE
  COMPUTED_COLUMN_WITH_TYPE
  SUPPORTS_TABLE_COPY
  TABLESAMPLE_REQUIRES_PARENS
  TABLESAMPLE_SIZE_IS_ROWS
  TABLESAMPLE_KEYWORDS
  TABLESAMPLE_WITH_METHOD
  TABLESAMPLE_SEED_KEYWORD
  DATA_TYPE_SPECIFIERS_ALLOWED
  ENSURE_BOOLS
  CTE_RECURSIVE_KEYWORD_REQUIRED
  SUPPORTS_SINGLE_ARG_CONCAT
  LAST_DAY_SUPPORTS_DATE_PART
  INSERT_OVERWRITE
  SUPPORTS_SELECT_INTO
  SUPPORTS_UNLOGGED_TABLES
  SUPPORTS_CREATE_TABLE_LIKE
  LIKE_PROPERTY_INSIDE_SCHEMA
  MULTI_ARG_DISTINCT
  JSON_TYPE_REQUIRED_FOR_EXTRACTION
  JSON_PATH_BRACKETED_KEY_SUPPORTED
  SUPPORTS_WINDOW_EXCLUDE
  SET_OP_MODIFIERS
  COPY_PARAMS_ARE_WRAPPED
  COPY_PARAMS_EQ_REQUIRED
  COPY_HAS_INTO_KEYWORD
  STAR_EXCEPT
  QUOTE_JSON_PATH
  PAD_FILL_PATTERN_IS_REQUIRED
  ARRAY_CONCAT_IS_VAR_LEN
  SUPPORTS_CONVERT_TIMEZONE
  SUPPORTS_MEDIAN
  ALTER_SET_WRAPPED
  PARSE_JSON_NAME
  ARRAY_SIZE_NAME
  ALTER_SET_TYPE
  ARRAY_SIZE_DIM_REQUIRED
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  EXPRESSION_PRECEDES_PROPERTIES_CREATABLES
  WITH_SEPARATED_COMMENTS
  EXCLUDE_COMMENTS
  UNWRAPPED_INTERVAL_VALUES
  PARAMETERIZABLE_TEXT_TYPES
  EXPRESSIONS_WITHOUT_NESTED_CTES
  RESPECT_IGNORE_NULLS_UNSUPPORTED_EXPRESSIONS
  SENTINEL_LINE_BREAK
  pretty
  identify
  normalize
  pad
  unsupported_level
  max_unsupported
  leading_comma
  max_text_width
  comments
  dialect
  normalize_functions
  unsupported_messages
  generate
  preprocess
  unsupported
  sep
  seg
  sanitize_comment
  maybe_comment
  wrap
  no_identify
  normalize_func
  indent
  sql
  uncache_sql
  cache_sql
  characterset_sql
  column_sql
  columnposition_sql
  columndef_sql
  columnconstraint_sql
  computedcolumnconstraint_sql
  autoincrementcolumnconstraint_sql
  compresscolumnconstraint_sql
  generatedasidentitycolumnconstraint_sql
  generatedasrowcolumnconstraint_sql
  periodforsystemtimeconstraint_sql
  notnullcolumnconstraint_sql
  primarykeycolumnconstraint_sql
  uniquecolumnconstraint_sql
  createable_sql
  create_sql
  sequenceproperties_sql
  clone_sql
  describe_sql
  heredoc_sql
  prepend_ctes
  with_sql
  cte_sql
  tablealias_sql
  bitstring_sql
  hexstring_sql
  bytestring_sql
  unicodestring_sql
  rawstring_sql
  datatypeparam_sql
  datatype_sql
  directory_sql
  delete_sql
  drop_sql
  set_operation
  set_operations
  fetch_sql
  limitoptions_sql
  filter_sql
  hint_sql
  indexparameters_sql
  index_sql
  identifier_sql
  hex_sql
  lowerhex_sql
  inputoutputformat_sql
  national_sql
  partition_sql
  properties_sql
  root_properties
  properties
  with_properties
  locate_properties
  property_name
  property_sql
  likeproperty_sql
  fallbackproperty_sql
  journalproperty_sql
  freespaceproperty_sql
  checksumproperty_sql
  mergeblockratioproperty_sql
  datablocksizeproperty_sql
  blockcompressionproperty_sql
  isolatedloadingproperty_sql
  partitionboundspec_sql
  partitionedofproperty_sql
  lockingproperty_sql
  withdataproperty_sql
  withsystemversioningproperty_sql
  insert_sql
  introducer_sql
  kill_sql
  pseudotype_sql
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