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.dialects.dialect import (
      9    Dialect,
     10    NormalizationStrategy,
     11    arg_max_or_min_no_count,
     12    binary_from_function,
     13    date_add_interval_sql,
     14    datestrtodate_sql,
     15    build_formatted_time,
     16    filter_array_using_unnest,
     17    if_sql,
     18    inline_array_unless_query,
     19    max_or_greatest,
     20    min_or_least,
     21    no_ilike_sql,
     22    build_date_delta_with_interval,
     23    regexp_replace_sql,
     24    rename_func,
     25    sha256_sql,
     26    timestrtotime_sql,
     27    ts_or_ds_add_cast,
     28    unit_to_var,
     29)
     30from sqlglot.helper import seq_get, split_num_words
     31from sqlglot.tokens import TokenType
     32
     33if t.TYPE_CHECKING:
     34    from sqlglot._typing import E, Lit
     35
     36logger = logging.getLogger("sqlglot")
     37
     38
     39def _derived_table_values_to_unnest(self: BigQuery.Generator, expression: exp.Values) -> str:
     40    if not expression.find_ancestor(exp.From, exp.Join):
     41        return self.values_sql(expression)
     42
     43    structs = []
     44    alias = expression.args.get("alias")
     45    for tup in expression.find_all(exp.Tuple):
     46        field_aliases = (
     47            alias.columns
     48            if alias and alias.columns
     49            else (f"_c{i}" for i in range(len(tup.expressions)))
     50        )
     51        expressions = [
     52            exp.PropertyEQ(this=exp.to_identifier(name), expression=fld)
     53            for name, fld in zip(field_aliases, tup.expressions)
     54        ]
     55        structs.append(exp.Struct(expressions=expressions))
     56
     57    # Due to `UNNEST_COLUMN_ONLY`, it is expected that the table alias be contained in the columns expression
     58    alias_name_only = exp.TableAlias(columns=[alias.this]) if alias else None
     59    return self.unnest_sql(
     60        exp.Unnest(expressions=[exp.array(*structs, copy=False)], alias=alias_name_only)
     61    )
     62
     63
     64def _returnsproperty_sql(self: BigQuery.Generator, expression: exp.ReturnsProperty) -> str:
     65    this = expression.this
     66    if isinstance(this, exp.Schema):
     67        this = f"{self.sql(this, 'this')} <{self.expressions(this)}>"
     68    else:
     69        this = self.sql(this)
     70    return f"RETURNS {this}"
     71
     72
     73def _create_sql(self: BigQuery.Generator, expression: exp.Create) -> str:
     74    returns = expression.find(exp.ReturnsProperty)
     75    if expression.kind == "FUNCTION" and returns and returns.args.get("is_table"):
     76        expression.set("kind", "TABLE FUNCTION")
     77
     78        if isinstance(expression.expression, (exp.Subquery, exp.Literal)):
     79            expression.set("expression", expression.expression.this)
     80
     81    return self.create_sql(expression)
     82
     83
     84# https://issuetracker.google.com/issues/162294746
     85# workaround for bigquery bug when grouping by an expression and then ordering
     86# WITH x AS (SELECT 1 y)
     87# SELECT y + 1 z
     88# FROM x
     89# GROUP BY x + 1
     90# ORDER by z
     91def _alias_ordered_group(expression: exp.Expression) -> exp.Expression:
     92    if isinstance(expression, exp.Select):
     93        group = expression.args.get("group")
     94        order = expression.args.get("order")
     95
     96        if group and order:
     97            aliases = {
     98                select.this: select.args["alias"]
     99                for select in expression.selects
    100                if isinstance(select, exp.Alias)
    101            }
    102
    103            for grouped in group.expressions:
    104                if grouped.is_int:
    105                    continue
    106                alias = aliases.get(grouped)
    107                if alias:
    108                    grouped.replace(exp.column(alias))
    109
    110    return expression
    111
    112
    113def _pushdown_cte_column_names(expression: exp.Expression) -> exp.Expression:
    114    """BigQuery doesn't allow column names when defining a CTE, so we try to push them down."""
    115    if isinstance(expression, exp.CTE) and expression.alias_column_names:
    116        cte_query = expression.this
    117
    118        if cte_query.is_star:
    119            logger.warning(
    120                "Can't push down CTE column names for star queries. Run the query through"
    121                " the optimizer or use 'qualify' to expand the star projections first."
    122            )
    123            return expression
    124
    125        column_names = expression.alias_column_names
    126        expression.args["alias"].set("columns", None)
    127
    128        for name, select in zip(column_names, cte_query.selects):
    129            to_replace = select
    130
    131            if isinstance(select, exp.Alias):
    132                select = select.this
    133
    134            # Inner aliases are shadowed by the CTE column names
    135            to_replace.replace(exp.alias_(select, name))
    136
    137    return expression
    138
    139
    140def _build_parse_timestamp(args: t.List) -> exp.StrToTime:
    141    this = build_formatted_time(exp.StrToTime, "bigquery")([seq_get(args, 1), seq_get(args, 0)])
    142    this.set("zone", seq_get(args, 2))
    143    return this
    144
    145
    146def _build_timestamp(args: t.List) -> exp.Timestamp:
    147    timestamp = exp.Timestamp.from_arg_list(args)
    148    timestamp.set("with_tz", True)
    149    return timestamp
    150
    151
    152def _build_date(args: t.List) -> exp.Date | exp.DateFromParts:
    153    expr_type = exp.DateFromParts if len(args) == 3 else exp.Date
    154    return expr_type.from_arg_list(args)
    155
    156
    157def _build_to_hex(args: t.List) -> exp.Hex | exp.MD5:
    158    # TO_HEX(MD5(..)) is common in BigQuery, so it's parsed into MD5 to simplify its transpilation
    159    arg = seq_get(args, 0)
    160    return exp.MD5(this=arg.this) if isinstance(arg, exp.MD5Digest) else exp.LowerHex(this=arg)
    161
    162
    163def _array_contains_sql(self: BigQuery.Generator, expression: exp.ArrayContains) -> str:
    164    return self.sql(
    165        exp.Exists(
    166            this=exp.select("1")
    167            .from_(exp.Unnest(expressions=[expression.left]).as_("_unnest", table=["_col"]))
    168            .where(exp.column("_col").eq(expression.right))
    169        )
    170    )
    171
    172
    173def _ts_or_ds_add_sql(self: BigQuery.Generator, expression: exp.TsOrDsAdd) -> str:
    174    return date_add_interval_sql("DATE", "ADD")(self, ts_or_ds_add_cast(expression))
    175
    176
    177def _ts_or_ds_diff_sql(self: BigQuery.Generator, expression: exp.TsOrDsDiff) -> str:
    178    expression.this.replace(exp.cast(expression.this, exp.DataType.Type.TIMESTAMP))
    179    expression.expression.replace(exp.cast(expression.expression, exp.DataType.Type.TIMESTAMP))
    180    unit = unit_to_var(expression)
    181    return self.func("DATE_DIFF", expression.this, expression.expression, unit)
    182
    183
    184def _unix_to_time_sql(self: BigQuery.Generator, expression: exp.UnixToTime) -> str:
    185    scale = expression.args.get("scale")
    186    timestamp = expression.this
    187
    188    if scale in (None, exp.UnixToTime.SECONDS):
    189        return self.func("TIMESTAMP_SECONDS", timestamp)
    190    if scale == exp.UnixToTime.MILLIS:
    191        return self.func("TIMESTAMP_MILLIS", timestamp)
    192    if scale == exp.UnixToTime.MICROS:
    193        return self.func("TIMESTAMP_MICROS", timestamp)
    194
    195    unix_seconds = exp.cast(
    196        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)), exp.DataType.Type.BIGINT
    197    )
    198    return self.func("TIMESTAMP_SECONDS", unix_seconds)
    199
    200
    201def _build_time(args: t.List) -> exp.Func:
    202    if len(args) == 1:
    203        return exp.TsOrDsToTime(this=args[0])
    204    if len(args) == 2:
    205        return exp.Time.from_arg_list(args)
    206    return exp.TimeFromParts.from_arg_list(args)
    207
    208
    209def _build_datetime(args: t.List) -> exp.Func:
    210    if len(args) == 1:
    211        return exp.TsOrDsToTimestamp.from_arg_list(args)
    212    if len(args) == 2:
    213        return exp.Datetime.from_arg_list(args)
    214    return exp.TimestampFromParts.from_arg_list(args)
    215
    216
    217def _str_to_datetime_sql(
    218    self: BigQuery.Generator, expression: exp.StrToDate | exp.StrToTime
    219) -> str:
    220    this = self.sql(expression, "this")
    221    dtype = "DATE" if isinstance(expression, exp.StrToDate) else "TIMESTAMP"
    222
    223    if expression.args.get("safe"):
    224        fmt = self.format_time(
    225            expression,
    226            self.dialect.INVERSE_FORMAT_MAPPING,
    227            self.dialect.INVERSE_FORMAT_TRIE,
    228        )
    229        return f"SAFE_CAST({this} AS {dtype} FORMAT {fmt})"
    230
    231    fmt = self.format_time(expression)
    232    return self.func(f"PARSE_{dtype}", fmt, this, expression.args.get("zone"))
    233
    234
    235class BigQuery(Dialect):
    236    WEEK_OFFSET = -1
    237    UNNEST_COLUMN_ONLY = True
    238    SUPPORTS_USER_DEFINED_TYPES = False
    239    SUPPORTS_SEMI_ANTI_JOIN = False
    240    LOG_BASE_FIRST = False
    241    HEX_LOWERCASE = True
    242    FORCE_EARLY_ALIAS_REF_EXPANSION = True
    243    EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY = True
    244
    245    # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#case_sensitivity
    246    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
    247
    248    # bigquery udfs are case sensitive
    249    NORMALIZE_FUNCTIONS = False
    250
    251    # https://cloud.google.com/bigquery/docs/reference/standard-sql/format-elements#format_elements_date_time
    252    TIME_MAPPING = {
    253        "%D": "%m/%d/%y",
    254        "%E6S": "%S.%f",
    255    }
    256
    257    FORMAT_MAPPING = {
    258        "DD": "%d",
    259        "MM": "%m",
    260        "MON": "%b",
    261        "MONTH": "%B",
    262        "YYYY": "%Y",
    263        "YY": "%y",
    264        "HH": "%I",
    265        "HH12": "%I",
    266        "HH24": "%H",
    267        "MI": "%M",
    268        "SS": "%S",
    269        "SSSSS": "%f",
    270        "TZH": "%z",
    271    }
    272
    273    # The _PARTITIONTIME and _PARTITIONDATE pseudo-columns are not returned by a SELECT * statement
    274    # https://cloud.google.com/bigquery/docs/querying-partitioned-tables#query_an_ingestion-time_partitioned_table
    275    PSEUDOCOLUMNS = {"_PARTITIONTIME", "_PARTITIONDATE"}
    276
    277    def normalize_identifier(self, expression: E) -> E:
    278        if (
    279            isinstance(expression, exp.Identifier)
    280            and self.normalization_strategy is not NormalizationStrategy.CASE_SENSITIVE
    281        ):
    282            parent = expression.parent
    283            while isinstance(parent, exp.Dot):
    284                parent = parent.parent
    285
    286            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
    287            # by default. The following check uses a heuristic to detect tables based on whether
    288            # they are qualified. This should generally be correct, because tables in BigQuery
    289            # must be qualified with at least a dataset, unless @@dataset_id is set.
    290            case_sensitive = (
    291                isinstance(parent, exp.UserDefinedFunction)
    292                or (
    293                    isinstance(parent, exp.Table)
    294                    and parent.db
    295                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
    296                )
    297                or expression.meta.get("is_table")
    298            )
    299            if not case_sensitive:
    300                expression.set("this", expression.this.lower())
    301
    302        return expression
    303
    304    class Tokenizer(tokens.Tokenizer):
    305        QUOTES = ["'", '"', '"""', "'''"]
    306        COMMENTS = ["--", "#", ("/*", "*/")]
    307        IDENTIFIERS = ["`"]
    308        STRING_ESCAPES = ["\\"]
    309
    310        HEX_STRINGS = [("0x", ""), ("0X", "")]
    311
    312        BYTE_STRINGS = [
    313            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
    314        ]
    315
    316        RAW_STRINGS = [
    317            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
    318        ]
    319
    320        KEYWORDS = {
    321            **tokens.Tokenizer.KEYWORDS,
    322            "ANY TYPE": TokenType.VARIANT,
    323            "BEGIN": TokenType.COMMAND,
    324            "BEGIN TRANSACTION": TokenType.BEGIN,
    325            "BYTES": TokenType.BINARY,
    326            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    327            "DATETIME": TokenType.TIMESTAMP,
    328            "DECLARE": TokenType.COMMAND,
    329            "ELSEIF": TokenType.COMMAND,
    330            "EXCEPTION": TokenType.COMMAND,
    331            "FLOAT64": TokenType.DOUBLE,
    332            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
    333            "MODEL": TokenType.MODEL,
    334            "NOT DETERMINISTIC": TokenType.VOLATILE,
    335            "RECORD": TokenType.STRUCT,
    336            "TIMESTAMP": TokenType.TIMESTAMPTZ,
    337        }
    338        KEYWORDS.pop("DIV")
    339        KEYWORDS.pop("VALUES")
    340        KEYWORDS.pop("/*+")
    341
    342    class Parser(parser.Parser):
    343        PREFIXED_PIVOT_COLUMNS = True
    344        LOG_DEFAULTS_TO_LN = True
    345        SUPPORTS_IMPLICIT_UNNEST = True
    346
    347        FUNCTIONS = {
    348            **parser.Parser.FUNCTIONS,
    349            "DATE": _build_date,
    350            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    351            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    352            "DATE_TRUNC": lambda args: exp.DateTrunc(
    353                unit=exp.Literal.string(str(seq_get(args, 1))),
    354                this=seq_get(args, 0),
    355            ),
    356            "DATETIME": _build_datetime,
    357            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
    358            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
    359            "DIV": binary_from_function(exp.IntDiv),
    360            "FORMAT_DATE": lambda args: exp.TimeToStr(
    361                this=exp.TsOrDsToDate(this=seq_get(args, 1)), format=seq_get(args, 0)
    362            ),
    363            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
    364            "JSON_EXTRACT_SCALAR": lambda args: exp.JSONExtractScalar(
    365                this=seq_get(args, 0), expression=seq_get(args, 1) or exp.Literal.string("$")
    366            ),
    367            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
    368            "MD5": exp.MD5Digest.from_arg_list,
    369            "TO_HEX": _build_to_hex,
    370            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
    371                [seq_get(args, 1), seq_get(args, 0)]
    372            ),
    373            "PARSE_TIMESTAMP": _build_parse_timestamp,
    374            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    375            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    376                this=seq_get(args, 0),
    377                expression=seq_get(args, 1),
    378                position=seq_get(args, 2),
    379                occurrence=seq_get(args, 3),
    380                group=exp.Literal.number(1) if re.compile(args[1].name).groups == 1 else None,
    381            ),
    382            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
    383            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
    384            "SPLIT": lambda args: exp.Split(
    385                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
    386                this=seq_get(args, 0),
    387                expression=seq_get(args, 1) or exp.Literal.string(","),
    388            ),
    389            "TIME": _build_time,
    390            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
    391            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
    392            "TIMESTAMP": _build_timestamp,
    393            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
    394            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
    395            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
    396                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
    397            ),
    398            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
    399                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
    400            ),
    401            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
    402            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
    403        }
    404
    405        FUNCTION_PARSERS = {
    406            **parser.Parser.FUNCTION_PARSERS,
    407            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    408        }
    409        FUNCTION_PARSERS.pop("TRIM")
    410
    411        NO_PAREN_FUNCTIONS = {
    412            **parser.Parser.NO_PAREN_FUNCTIONS,
    413            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    414        }
    415
    416        NESTED_TYPE_TOKENS = {
    417            *parser.Parser.NESTED_TYPE_TOKENS,
    418            TokenType.TABLE,
    419        }
    420
    421        PROPERTY_PARSERS = {
    422            **parser.Parser.PROPERTY_PARSERS,
    423            "NOT DETERMINISTIC": lambda self: self.expression(
    424                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    425            ),
    426            "OPTIONS": lambda self: self._parse_with_property(),
    427        }
    428
    429        CONSTRAINT_PARSERS = {
    430            **parser.Parser.CONSTRAINT_PARSERS,
    431            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    432        }
    433
    434        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
    435        RANGE_PARSERS.pop(TokenType.OVERLAPS)
    436
    437        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
    438
    439        STATEMENT_PARSERS = {
    440            **parser.Parser.STATEMENT_PARSERS,
    441            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
    442            TokenType.END: lambda self: self._parse_as_command(self._prev),
    443            TokenType.FOR: lambda self: self._parse_for_in(),
    444        }
    445
    446        BRACKET_OFFSETS = {
    447            "OFFSET": (0, False),
    448            "ORDINAL": (1, False),
    449            "SAFE_OFFSET": (0, True),
    450            "SAFE_ORDINAL": (1, True),
    451        }
    452
    453        def _parse_for_in(self) -> exp.ForIn:
    454            this = self._parse_range()
    455            self._match_text_seq("DO")
    456            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
    457
    458        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
    459            this = super()._parse_table_part(schema=schema) or self._parse_number()
    460
    461            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
    462            if isinstance(this, exp.Identifier):
    463                table_name = this.name
    464                while self._match(TokenType.DASH, advance=False) and self._next:
    465                    text = ""
    466                    while self._curr and self._curr.token_type != TokenType.DOT:
    467                        self._advance()
    468                        text += self._prev.text
    469                    table_name += text
    470
    471                this = exp.Identifier(this=table_name, quoted=this.args.get("quoted"))
    472            elif isinstance(this, exp.Literal):
    473                table_name = this.name
    474
    475                if self._is_connected() and self._parse_var(any_token=True):
    476                    table_name += self._prev.text
    477
    478                this = exp.Identifier(this=table_name, quoted=True)
    479
    480            return this
    481
    482        def _parse_table_parts(
    483            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
    484        ) -> exp.Table:
    485            table = super()._parse_table_parts(
    486                schema=schema, is_db_reference=is_db_reference, wildcard=True
    487            )
    488
    489            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
    490            if not table.catalog:
    491                if table.db:
    492                    parts = table.db.split(".")
    493                    if len(parts) == 2 and not table.args["db"].quoted:
    494                        table.set("catalog", exp.Identifier(this=parts[0]))
    495                        table.set("db", exp.Identifier(this=parts[1]))
    496                else:
    497                    parts = table.name.split(".")
    498                    if len(parts) == 2 and not table.this.quoted:
    499                        table.set("db", exp.Identifier(this=parts[0]))
    500                        table.set("this", exp.Identifier(this=parts[1]))
    501
    502            if any("." in p.name for p in table.parts):
    503                catalog, db, this, *rest = (
    504                    exp.to_identifier(p, quoted=True)
    505                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
    506                )
    507
    508                if rest and this:
    509                    this = exp.Dot.build([this, *rest])  # type: ignore
    510
    511                table = exp.Table(
    512                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
    513                )
    514                table.meta["quoted_table"] = True
    515
    516            return table
    517
    518        def _parse_column(self) -> t.Optional[exp.Expression]:
    519            column = super()._parse_column()
    520            if isinstance(column, exp.Column):
    521                parts = column.parts
    522                if any("." in p.name for p in parts):
    523                    catalog, db, table, this, *rest = (
    524                        exp.to_identifier(p, quoted=True)
    525                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
    526                    )
    527
    528                    if rest and this:
    529                        this = exp.Dot.build([this, *rest])  # type: ignore
    530
    531                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
    532                    column.meta["quoted_column"] = True
    533
    534            return column
    535
    536        @t.overload
    537        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
    538
    539        @t.overload
    540        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
    541
    542        def _parse_json_object(self, agg=False):
    543            json_object = super()._parse_json_object()
    544            array_kv_pair = seq_get(json_object.expressions, 0)
    545
    546            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
    547            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
    548            if (
    549                array_kv_pair
    550                and isinstance(array_kv_pair.this, exp.Array)
    551                and isinstance(array_kv_pair.expression, exp.Array)
    552            ):
    553                keys = array_kv_pair.this.expressions
    554                values = array_kv_pair.expression.expressions
    555
    556                json_object.set(
    557                    "expressions",
    558                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
    559                )
    560
    561            return json_object
    562
    563        def _parse_bracket(
    564            self, this: t.Optional[exp.Expression] = None
    565        ) -> t.Optional[exp.Expression]:
    566            bracket = super()._parse_bracket(this)
    567
    568            if this is bracket:
    569                return bracket
    570
    571            if isinstance(bracket, exp.Bracket):
    572                for expression in bracket.expressions:
    573                    name = expression.name.upper()
    574
    575                    if name not in self.BRACKET_OFFSETS:
    576                        break
    577
    578                    offset, safe = self.BRACKET_OFFSETS[name]
    579                    bracket.set("offset", offset)
    580                    bracket.set("safe", safe)
    581                    expression.replace(expression.expressions[0])
    582
    583            return bracket
    584
    585    class Generator(generator.Generator):
    586        EXPLICIT_SET_OP = True
    587        INTERVAL_ALLOWS_PLURAL_FORM = False
    588        JOIN_HINTS = False
    589        QUERY_HINTS = False
    590        TABLE_HINTS = False
    591        LIMIT_FETCH = "LIMIT"
    592        RENAME_TABLE_WITH_DB = False
    593        NVL2_SUPPORTED = False
    594        UNNEST_WITH_ORDINALITY = False
    595        COLLATE_IS_FUNC = True
    596        LIMIT_ONLY_LITERALS = True
    597        SUPPORTS_TABLE_ALIAS_COLUMNS = False
    598        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
    599        JSON_KEY_VALUE_PAIR_SEP = ","
    600        NULL_ORDERING_SUPPORTED = False
    601        IGNORE_NULLS_IN_FUNC = True
    602        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    603        CAN_IMPLEMENT_ARRAY_ANY = True
    604        SUPPORTS_TO_NUMBER = False
    605        NAMED_PLACEHOLDER_TOKEN = "@"
    606        HEX_FUNC = "TO_HEX"
    607        WITH_PROPERTIES_PREFIX = "OPTIONS"
    608
    609        TRANSFORMS = {
    610            **generator.Generator.TRANSFORMS,
    611            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    612            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    613            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    614            exp.Array: inline_array_unless_query,
    615            exp.ArrayContains: _array_contains_sql,
    616            exp.ArrayFilter: filter_array_using_unnest,
    617            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    618            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
    619            exp.CollateProperty: lambda self, e: (
    620                f"DEFAULT COLLATE {self.sql(e, 'this')}"
    621                if e.args.get("default")
    622                else f"COLLATE {self.sql(e, 'this')}"
    623            ),
    624            exp.Commit: lambda *_: "COMMIT TRANSACTION",
    625            exp.CountIf: rename_func("COUNTIF"),
    626            exp.Create: _create_sql,
    627            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
    628            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
    629            exp.DateDiff: lambda self, e: self.func(
    630                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
    631            ),
    632            exp.DateFromParts: rename_func("DATE"),
    633            exp.DateStrToDate: datestrtodate_sql,
    634            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
    635            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
    636            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
    637            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    638            exp.FromTimeZone: lambda self, e: self.func(
    639                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
    640            ),
    641            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
    642            exp.GroupConcat: rename_func("STRING_AGG"),
    643            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
    644            exp.If: if_sql(false_value="NULL"),
    645            exp.ILike: no_ilike_sql,
    646            exp.IntDiv: rename_func("DIV"),
    647            exp.JSONFormat: rename_func("TO_JSON_STRING"),
    648            exp.Max: max_or_greatest,
    649            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
    650            exp.MD5Digest: rename_func("MD5"),
    651            exp.Min: min_or_least,
    652            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    653            exp.RegexpExtract: lambda self, e: self.func(
    654                "REGEXP_EXTRACT",
    655                e.this,
    656                e.expression,
    657                e.args.get("position"),
    658                e.args.get("occurrence"),
    659            ),
    660            exp.RegexpReplace: regexp_replace_sql,
    661            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    662            exp.ReturnsProperty: _returnsproperty_sql,
    663            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    664            exp.Select: transforms.preprocess(
    665                [
    666                    transforms.explode_to_unnest(),
    667                    transforms.unqualify_unnest,
    668                    transforms.eliminate_distinct_on,
    669                    _alias_ordered_group,
    670                    transforms.eliminate_semi_and_anti_joins,
    671                ]
    672            ),
    673            exp.SHA: rename_func("SHA1"),
    674            exp.SHA2: sha256_sql,
    675            exp.StabilityProperty: lambda self, e: (
    676                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    677            ),
    678            exp.StrToDate: _str_to_datetime_sql,
    679            exp.StrToTime: _str_to_datetime_sql,
    680            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    681            exp.TimeFromParts: rename_func("TIME"),
    682            exp.TimestampFromParts: rename_func("DATETIME"),
    683            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    684            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    685            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    686            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    687            exp.TimeStrToTime: timestrtotime_sql,
    688            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    689            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    690            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    691            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    692            exp.TsOrDsToTime: rename_func("TIME"),
    693            exp.TsOrDsToTimestamp: rename_func("DATETIME"),
    694            exp.Unhex: rename_func("FROM_HEX"),
    695            exp.UnixDate: rename_func("UNIX_DATE"),
    696            exp.UnixToTime: _unix_to_time_sql,
    697            exp.Values: _derived_table_values_to_unnest,
    698            exp.VariancePop: rename_func("VAR_POP"),
    699        }
    700
    701        SUPPORTED_JSON_PATH_PARTS = {
    702            exp.JSONPathKey,
    703            exp.JSONPathRoot,
    704            exp.JSONPathSubscript,
    705        }
    706
    707        TYPE_MAPPING = {
    708            **generator.Generator.TYPE_MAPPING,
    709            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    710            exp.DataType.Type.BIGINT: "INT64",
    711            exp.DataType.Type.BINARY: "BYTES",
    712            exp.DataType.Type.BOOLEAN: "BOOL",
    713            exp.DataType.Type.CHAR: "STRING",
    714            exp.DataType.Type.DECIMAL: "NUMERIC",
    715            exp.DataType.Type.DOUBLE: "FLOAT64",
    716            exp.DataType.Type.FLOAT: "FLOAT64",
    717            exp.DataType.Type.INT: "INT64",
    718            exp.DataType.Type.NCHAR: "STRING",
    719            exp.DataType.Type.NVARCHAR: "STRING",
    720            exp.DataType.Type.SMALLINT: "INT64",
    721            exp.DataType.Type.TEXT: "STRING",
    722            exp.DataType.Type.TIMESTAMP: "DATETIME",
    723            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    724            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    725            exp.DataType.Type.TINYINT: "INT64",
    726            exp.DataType.Type.VARBINARY: "BYTES",
    727            exp.DataType.Type.ROWVERSION: "BYTES",
    728            exp.DataType.Type.VARCHAR: "STRING",
    729            exp.DataType.Type.VARIANT: "ANY TYPE",
    730        }
    731
    732        PROPERTIES_LOCATION = {
    733            **generator.Generator.PROPERTIES_LOCATION,
    734            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    735            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    736        }
    737
    738        # WINDOW comes after QUALIFY
    739        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    740        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    741            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    742            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    743        }
    744
    745        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    746        RESERVED_KEYWORDS = {
    747            "all",
    748            "and",
    749            "any",
    750            "array",
    751            "as",
    752            "asc",
    753            "assert_rows_modified",
    754            "at",
    755            "between",
    756            "by",
    757            "case",
    758            "cast",
    759            "collate",
    760            "contains",
    761            "create",
    762            "cross",
    763            "cube",
    764            "current",
    765            "default",
    766            "define",
    767            "desc",
    768            "distinct",
    769            "else",
    770            "end",
    771            "enum",
    772            "escape",
    773            "except",
    774            "exclude",
    775            "exists",
    776            "extract",
    777            "false",
    778            "fetch",
    779            "following",
    780            "for",
    781            "from",
    782            "full",
    783            "group",
    784            "grouping",
    785            "groups",
    786            "hash",
    787            "having",
    788            "if",
    789            "ignore",
    790            "in",
    791            "inner",
    792            "intersect",
    793            "interval",
    794            "into",
    795            "is",
    796            "join",
    797            "lateral",
    798            "left",
    799            "like",
    800            "limit",
    801            "lookup",
    802            "merge",
    803            "natural",
    804            "new",
    805            "no",
    806            "not",
    807            "null",
    808            "nulls",
    809            "of",
    810            "on",
    811            "or",
    812            "order",
    813            "outer",
    814            "over",
    815            "partition",
    816            "preceding",
    817            "proto",
    818            "qualify",
    819            "range",
    820            "recursive",
    821            "respect",
    822            "right",
    823            "rollup",
    824            "rows",
    825            "select",
    826            "set",
    827            "some",
    828            "struct",
    829            "tablesample",
    830            "then",
    831            "to",
    832            "treat",
    833            "true",
    834            "unbounded",
    835            "union",
    836            "unnest",
    837            "using",
    838            "when",
    839            "where",
    840            "window",
    841            "with",
    842            "within",
    843        }
    844
    845        def mod_sql(self, expression: exp.Mod) -> str:
    846            this = expression.this
    847            expr = expression.expression
    848            return self.func(
    849                "MOD",
    850                this.unnest() if isinstance(this, exp.Paren) else this,
    851                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    852            )
    853
    854        def column_parts(self, expression: exp.Column) -> str:
    855            if expression.meta.get("quoted_column"):
    856                # If a column reference is of the form `dataset.table`.name, we need
    857                # to preserve the quoted table path, otherwise the reference breaks
    858                table_parts = ".".join(p.name for p in expression.parts[:-1])
    859                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    860                return f"{table_path}.{self.sql(expression, 'this')}"
    861
    862            return super().column_parts(expression)
    863
    864        def table_parts(self, expression: exp.Table) -> str:
    865            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    866            # we need to make sure the correct quoting is used in each case.
    867            #
    868            # For example, if there is a CTE x that clashes with a schema name, then the former will
    869            # return the table y in that schema, whereas the latter will return the CTE's y column:
    870            #
    871            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    872            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    873            if expression.meta.get("quoted_table"):
    874                table_parts = ".".join(p.name for p in expression.parts)
    875                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    876
    877            return super().table_parts(expression)
    878
    879        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    880            this = expression.this if isinstance(expression.this, exp.TsOrDsToDate) else expression
    881            return self.func("FORMAT_DATE", self.format_time(expression), this.this)
    882
    883        def eq_sql(self, expression: exp.EQ) -> str:
    884            # Operands of = cannot be NULL in BigQuery
    885            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    886                if not isinstance(expression.parent, exp.Update):
    887                    return "NULL"
    888
    889            return self.binary(expression, "=")
    890
    891        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    892            parent = expression.parent
    893
    894            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    895            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    896            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    897                return self.func(
    898                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    899                )
    900
    901            return super().attimezone_sql(expression)
    902
    903        def trycast_sql(self, expression: exp.TryCast) -> str:
    904            return self.cast_sql(expression, safe_prefix="SAFE_")
    905
    906        def bracket_sql(self, expression: exp.Bracket) -> str:
    907            this = expression.this
    908            expressions = expression.expressions
    909
    910            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    911                arg = expressions[0]
    912                if arg.type is None:
    913                    from sqlglot.optimizer.annotate_types import annotate_types
    914
    915                    arg = annotate_types(arg)
    916
    917                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    918                    # BQ doesn't support bracket syntax with string values for structs
    919                    return f"{self.sql(this)}.{arg.name}"
    920
    921            expressions_sql = self.expressions(expression, flat=True)
    922            offset = expression.args.get("offset")
    923
    924            if offset == 0:
    925                expressions_sql = f"OFFSET({expressions_sql})"
    926            elif offset == 1:
    927                expressions_sql = f"ORDINAL({expressions_sql})"
    928            elif offset is not None:
    929                self.unsupported(f"Unsupported array offset: {offset}")
    930
    931            if expression.args.get("safe"):
    932                expressions_sql = f"SAFE_{expressions_sql}"
    933
    934            return f"{self.sql(this)}[{expressions_sql}]"
    935
    936        def in_unnest_op(self, expression: exp.Unnest) -> str:
    937            return self.sql(expression)
    938
    939        def except_op(self, expression: exp.Except) -> str:
    940            if not expression.args.get("distinct"):
    941                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    942            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    943
    944        def intersect_op(self, expression: exp.Intersect) -> str:
    945            if not expression.args.get("distinct"):
    946                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    947            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    948
    949        def version_sql(self, expression: exp.Version) -> str:
    950            if expression.name == "TIMESTAMP":
    951                expression.set("this", "SYSTEM_TIME")
    952            return super().version_sql(expression)

logger = <Logger sqlglot (WARNING)>
class BigQuery(sqlglot.dialects.dialect.Dialect): View Source

    236class BigQuery(Dialect):
    237    WEEK_OFFSET = -1
    238    UNNEST_COLUMN_ONLY = True
    239    SUPPORTS_USER_DEFINED_TYPES = False
    240    SUPPORTS_SEMI_ANTI_JOIN = False
    241    LOG_BASE_FIRST = False
    242    HEX_LOWERCASE = True
    243    FORCE_EARLY_ALIAS_REF_EXPANSION = True
    244    EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY = True
    245
    246    # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#case_sensitivity
    247    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_INSENSITIVE
    248
    249    # bigquery udfs are case sensitive
    250    NORMALIZE_FUNCTIONS = False
    251
    252    # https://cloud.google.com/bigquery/docs/reference/standard-sql/format-elements#format_elements_date_time
    253    TIME_MAPPING = {
    254        "%D": "%m/%d/%y",
    255        "%E6S": "%S.%f",
    256    }
    257
    258    FORMAT_MAPPING = {
    259        "DD": "%d",
    260        "MM": "%m",
    261        "MON": "%b",
    262        "MONTH": "%B",
    263        "YYYY": "%Y",
    264        "YY": "%y",
    265        "HH": "%I",
    266        "HH12": "%I",
    267        "HH24": "%H",
    268        "MI": "%M",
    269        "SS": "%S",
    270        "SSSSS": "%f",
    271        "TZH": "%z",
    272    }
    273
    274    # The _PARTITIONTIME and _PARTITIONDATE pseudo-columns are not returned by a SELECT * statement
    275    # https://cloud.google.com/bigquery/docs/querying-partitioned-tables#query_an_ingestion-time_partitioned_table
    276    PSEUDOCOLUMNS = {"_PARTITIONTIME", "_PARTITIONDATE"}
    277
    278    def normalize_identifier(self, expression: E) -> E:
    279        if (
    280            isinstance(expression, exp.Identifier)
    281            and self.normalization_strategy is not NormalizationStrategy.CASE_SENSITIVE
    282        ):
    283            parent = expression.parent
    284            while isinstance(parent, exp.Dot):
    285                parent = parent.parent
    286
    287            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
    288            # by default. The following check uses a heuristic to detect tables based on whether
    289            # they are qualified. This should generally be correct, because tables in BigQuery
    290            # must be qualified with at least a dataset, unless @@dataset_id is set.
    291            case_sensitive = (
    292                isinstance(parent, exp.UserDefinedFunction)
    293                or (
    294                    isinstance(parent, exp.Table)
    295                    and parent.db
    296                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
    297                )
    298                or expression.meta.get("is_table")
    299            )
    300            if not case_sensitive:
    301                expression.set("this", expression.this.lower())
    302
    303        return expression
    304
    305    class Tokenizer(tokens.Tokenizer):
    306        QUOTES = ["'", '"', '"""', "'''"]
    307        COMMENTS = ["--", "#", ("/*", "*/")]
    308        IDENTIFIERS = ["`"]
    309        STRING_ESCAPES = ["\\"]
    310
    311        HEX_STRINGS = [("0x", ""), ("0X", "")]
    312
    313        BYTE_STRINGS = [
    314            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
    315        ]
    316
    317        RAW_STRINGS = [
    318            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
    319        ]
    320
    321        KEYWORDS = {
    322            **tokens.Tokenizer.KEYWORDS,
    323            "ANY TYPE": TokenType.VARIANT,
    324            "BEGIN": TokenType.COMMAND,
    325            "BEGIN TRANSACTION": TokenType.BEGIN,
    326            "BYTES": TokenType.BINARY,
    327            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    328            "DATETIME": TokenType.TIMESTAMP,
    329            "DECLARE": TokenType.COMMAND,
    330            "ELSEIF": TokenType.COMMAND,
    331            "EXCEPTION": TokenType.COMMAND,
    332            "FLOAT64": TokenType.DOUBLE,
    333            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
    334            "MODEL": TokenType.MODEL,
    335            "NOT DETERMINISTIC": TokenType.VOLATILE,
    336            "RECORD": TokenType.STRUCT,
    337            "TIMESTAMP": TokenType.TIMESTAMPTZ,
    338        }
    339        KEYWORDS.pop("DIV")
    340        KEYWORDS.pop("VALUES")
    341        KEYWORDS.pop("/*+")
    342
    343    class Parser(parser.Parser):
    344        PREFIXED_PIVOT_COLUMNS = True
    345        LOG_DEFAULTS_TO_LN = True
    346        SUPPORTS_IMPLICIT_UNNEST = True
    347
    348        FUNCTIONS = {
    349            **parser.Parser.FUNCTIONS,
    350            "DATE": _build_date,
    351            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    352            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    353            "DATE_TRUNC": lambda args: exp.DateTrunc(
    354                unit=exp.Literal.string(str(seq_get(args, 1))),
    355                this=seq_get(args, 0),
    356            ),
    357            "DATETIME": _build_datetime,
    358            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
    359            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
    360            "DIV": binary_from_function(exp.IntDiv),
    361            "FORMAT_DATE": lambda args: exp.TimeToStr(
    362                this=exp.TsOrDsToDate(this=seq_get(args, 1)), format=seq_get(args, 0)
    363            ),
    364            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
    365            "JSON_EXTRACT_SCALAR": lambda args: exp.JSONExtractScalar(
    366                this=seq_get(args, 0), expression=seq_get(args, 1) or exp.Literal.string("$")
    367            ),
    368            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
    369            "MD5": exp.MD5Digest.from_arg_list,
    370            "TO_HEX": _build_to_hex,
    371            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
    372                [seq_get(args, 1), seq_get(args, 0)]
    373            ),
    374            "PARSE_TIMESTAMP": _build_parse_timestamp,
    375            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    376            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    377                this=seq_get(args, 0),
    378                expression=seq_get(args, 1),
    379                position=seq_get(args, 2),
    380                occurrence=seq_get(args, 3),
    381                group=exp.Literal.number(1) if re.compile(args[1].name).groups == 1 else None,
    382            ),
    383            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
    384            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
    385            "SPLIT": lambda args: exp.Split(
    386                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
    387                this=seq_get(args, 0),
    388                expression=seq_get(args, 1) or exp.Literal.string(","),
    389            ),
    390            "TIME": _build_time,
    391            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
    392            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
    393            "TIMESTAMP": _build_timestamp,
    394            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
    395            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
    396            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
    397                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
    398            ),
    399            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
    400                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
    401            ),
    402            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
    403            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
    404        }
    405
    406        FUNCTION_PARSERS = {
    407            **parser.Parser.FUNCTION_PARSERS,
    408            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    409        }
    410        FUNCTION_PARSERS.pop("TRIM")
    411
    412        NO_PAREN_FUNCTIONS = {
    413            **parser.Parser.NO_PAREN_FUNCTIONS,
    414            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    415        }
    416
    417        NESTED_TYPE_TOKENS = {
    418            *parser.Parser.NESTED_TYPE_TOKENS,
    419            TokenType.TABLE,
    420        }
    421
    422        PROPERTY_PARSERS = {
    423            **parser.Parser.PROPERTY_PARSERS,
    424            "NOT DETERMINISTIC": lambda self: self.expression(
    425                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    426            ),
    427            "OPTIONS": lambda self: self._parse_with_property(),
    428        }
    429
    430        CONSTRAINT_PARSERS = {
    431            **parser.Parser.CONSTRAINT_PARSERS,
    432            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    433        }
    434
    435        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
    436        RANGE_PARSERS.pop(TokenType.OVERLAPS)
    437
    438        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
    439
    440        STATEMENT_PARSERS = {
    441            **parser.Parser.STATEMENT_PARSERS,
    442            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
    443            TokenType.END: lambda self: self._parse_as_command(self._prev),
    444            TokenType.FOR: lambda self: self._parse_for_in(),
    445        }
    446
    447        BRACKET_OFFSETS = {
    448            "OFFSET": (0, False),
    449            "ORDINAL": (1, False),
    450            "SAFE_OFFSET": (0, True),
    451            "SAFE_ORDINAL": (1, True),
    452        }
    453
    454        def _parse_for_in(self) -> exp.ForIn:
    455            this = self._parse_range()
    456            self._match_text_seq("DO")
    457            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
    458
    459        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
    460            this = super()._parse_table_part(schema=schema) or self._parse_number()
    461
    462            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
    463            if isinstance(this, exp.Identifier):
    464                table_name = this.name
    465                while self._match(TokenType.DASH, advance=False) and self._next:
    466                    text = ""
    467                    while self._curr and self._curr.token_type != TokenType.DOT:
    468                        self._advance()
    469                        text += self._prev.text
    470                    table_name += text
    471
    472                this = exp.Identifier(this=table_name, quoted=this.args.get("quoted"))
    473            elif isinstance(this, exp.Literal):
    474                table_name = this.name
    475
    476                if self._is_connected() and self._parse_var(any_token=True):
    477                    table_name += self._prev.text
    478
    479                this = exp.Identifier(this=table_name, quoted=True)
    480
    481            return this
    482
    483        def _parse_table_parts(
    484            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
    485        ) -> exp.Table:
    486            table = super()._parse_table_parts(
    487                schema=schema, is_db_reference=is_db_reference, wildcard=True
    488            )
    489
    490            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
    491            if not table.catalog:
    492                if table.db:
    493                    parts = table.db.split(".")
    494                    if len(parts) == 2 and not table.args["db"].quoted:
    495                        table.set("catalog", exp.Identifier(this=parts[0]))
    496                        table.set("db", exp.Identifier(this=parts[1]))
    497                else:
    498                    parts = table.name.split(".")
    499                    if len(parts) == 2 and not table.this.quoted:
    500                        table.set("db", exp.Identifier(this=parts[0]))
    501                        table.set("this", exp.Identifier(this=parts[1]))
    502
    503            if any("." in p.name for p in table.parts):
    504                catalog, db, this, *rest = (
    505                    exp.to_identifier(p, quoted=True)
    506                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
    507                )
    508
    509                if rest and this:
    510                    this = exp.Dot.build([this, *rest])  # type: ignore
    511
    512                table = exp.Table(
    513                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
    514                )
    515                table.meta["quoted_table"] = True
    516
    517            return table
    518
    519        def _parse_column(self) -> t.Optional[exp.Expression]:
    520            column = super()._parse_column()
    521            if isinstance(column, exp.Column):
    522                parts = column.parts
    523                if any("." in p.name for p in parts):
    524                    catalog, db, table, this, *rest = (
    525                        exp.to_identifier(p, quoted=True)
    526                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
    527                    )
    528
    529                    if rest and this:
    530                        this = exp.Dot.build([this, *rest])  # type: ignore
    531
    532                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
    533                    column.meta["quoted_column"] = True
    534
    535            return column
    536
    537        @t.overload
    538        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
    539
    540        @t.overload
    541        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
    542
    543        def _parse_json_object(self, agg=False):
    544            json_object = super()._parse_json_object()
    545            array_kv_pair = seq_get(json_object.expressions, 0)
    546
    547            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
    548            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
    549            if (
    550                array_kv_pair
    551                and isinstance(array_kv_pair.this, exp.Array)
    552                and isinstance(array_kv_pair.expression, exp.Array)
    553            ):
    554                keys = array_kv_pair.this.expressions
    555                values = array_kv_pair.expression.expressions
    556
    557                json_object.set(
    558                    "expressions",
    559                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
    560                )
    561
    562            return json_object
    563
    564        def _parse_bracket(
    565            self, this: t.Optional[exp.Expression] = None
    566        ) -> t.Optional[exp.Expression]:
    567            bracket = super()._parse_bracket(this)
    568
    569            if this is bracket:
    570                return bracket
    571
    572            if isinstance(bracket, exp.Bracket):
    573                for expression in bracket.expressions:
    574                    name = expression.name.upper()
    575
    576                    if name not in self.BRACKET_OFFSETS:
    577                        break
    578
    579                    offset, safe = self.BRACKET_OFFSETS[name]
    580                    bracket.set("offset", offset)
    581                    bracket.set("safe", safe)
    582                    expression.replace(expression.expressions[0])
    583
    584            return bracket
    585
    586    class Generator(generator.Generator):
    587        EXPLICIT_SET_OP = True
    588        INTERVAL_ALLOWS_PLURAL_FORM = False
    589        JOIN_HINTS = False
    590        QUERY_HINTS = False
    591        TABLE_HINTS = False
    592        LIMIT_FETCH = "LIMIT"
    593        RENAME_TABLE_WITH_DB = False
    594        NVL2_SUPPORTED = False
    595        UNNEST_WITH_ORDINALITY = False
    596        COLLATE_IS_FUNC = True
    597        LIMIT_ONLY_LITERALS = True
    598        SUPPORTS_TABLE_ALIAS_COLUMNS = False
    599        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
    600        JSON_KEY_VALUE_PAIR_SEP = ","
    601        NULL_ORDERING_SUPPORTED = False
    602        IGNORE_NULLS_IN_FUNC = True
    603        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    604        CAN_IMPLEMENT_ARRAY_ANY = True
    605        SUPPORTS_TO_NUMBER = False
    606        NAMED_PLACEHOLDER_TOKEN = "@"
    607        HEX_FUNC = "TO_HEX"
    608        WITH_PROPERTIES_PREFIX = "OPTIONS"
    609
    610        TRANSFORMS = {
    611            **generator.Generator.TRANSFORMS,
    612            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    613            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    614            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    615            exp.Array: inline_array_unless_query,
    616            exp.ArrayContains: _array_contains_sql,
    617            exp.ArrayFilter: filter_array_using_unnest,
    618            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    619            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
    620            exp.CollateProperty: lambda self, e: (
    621                f"DEFAULT COLLATE {self.sql(e, 'this')}"
    622                if e.args.get("default")
    623                else f"COLLATE {self.sql(e, 'this')}"
    624            ),
    625            exp.Commit: lambda *_: "COMMIT TRANSACTION",
    626            exp.CountIf: rename_func("COUNTIF"),
    627            exp.Create: _create_sql,
    628            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
    629            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
    630            exp.DateDiff: lambda self, e: self.func(
    631                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
    632            ),
    633            exp.DateFromParts: rename_func("DATE"),
    634            exp.DateStrToDate: datestrtodate_sql,
    635            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
    636            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
    637            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
    638            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    639            exp.FromTimeZone: lambda self, e: self.func(
    640                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
    641            ),
    642            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
    643            exp.GroupConcat: rename_func("STRING_AGG"),
    644            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
    645            exp.If: if_sql(false_value="NULL"),
    646            exp.ILike: no_ilike_sql,
    647            exp.IntDiv: rename_func("DIV"),
    648            exp.JSONFormat: rename_func("TO_JSON_STRING"),
    649            exp.Max: max_or_greatest,
    650            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
    651            exp.MD5Digest: rename_func("MD5"),
    652            exp.Min: min_or_least,
    653            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    654            exp.RegexpExtract: lambda self, e: self.func(
    655                "REGEXP_EXTRACT",
    656                e.this,
    657                e.expression,
    658                e.args.get("position"),
    659                e.args.get("occurrence"),
    660            ),
    661            exp.RegexpReplace: regexp_replace_sql,
    662            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    663            exp.ReturnsProperty: _returnsproperty_sql,
    664            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    665            exp.Select: transforms.preprocess(
    666                [
    667                    transforms.explode_to_unnest(),
    668                    transforms.unqualify_unnest,
    669                    transforms.eliminate_distinct_on,
    670                    _alias_ordered_group,
    671                    transforms.eliminate_semi_and_anti_joins,
    672                ]
    673            ),
    674            exp.SHA: rename_func("SHA1"),
    675            exp.SHA2: sha256_sql,
    676            exp.StabilityProperty: lambda self, e: (
    677                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    678            ),
    679            exp.StrToDate: _str_to_datetime_sql,
    680            exp.StrToTime: _str_to_datetime_sql,
    681            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    682            exp.TimeFromParts: rename_func("TIME"),
    683            exp.TimestampFromParts: rename_func("DATETIME"),
    684            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    685            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    686            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    687            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    688            exp.TimeStrToTime: timestrtotime_sql,
    689            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    690            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    691            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    692            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    693            exp.TsOrDsToTime: rename_func("TIME"),
    694            exp.TsOrDsToTimestamp: rename_func("DATETIME"),
    695            exp.Unhex: rename_func("FROM_HEX"),
    696            exp.UnixDate: rename_func("UNIX_DATE"),
    697            exp.UnixToTime: _unix_to_time_sql,
    698            exp.Values: _derived_table_values_to_unnest,
    699            exp.VariancePop: rename_func("VAR_POP"),
    700        }
    701
    702        SUPPORTED_JSON_PATH_PARTS = {
    703            exp.JSONPathKey,
    704            exp.JSONPathRoot,
    705            exp.JSONPathSubscript,
    706        }
    707
    708        TYPE_MAPPING = {
    709            **generator.Generator.TYPE_MAPPING,
    710            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    711            exp.DataType.Type.BIGINT: "INT64",
    712            exp.DataType.Type.BINARY: "BYTES",
    713            exp.DataType.Type.BOOLEAN: "BOOL",
    714            exp.DataType.Type.CHAR: "STRING",
    715            exp.DataType.Type.DECIMAL: "NUMERIC",
    716            exp.DataType.Type.DOUBLE: "FLOAT64",
    717            exp.DataType.Type.FLOAT: "FLOAT64",
    718            exp.DataType.Type.INT: "INT64",
    719            exp.DataType.Type.NCHAR: "STRING",
    720            exp.DataType.Type.NVARCHAR: "STRING",
    721            exp.DataType.Type.SMALLINT: "INT64",
    722            exp.DataType.Type.TEXT: "STRING",
    723            exp.DataType.Type.TIMESTAMP: "DATETIME",
    724            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    725            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    726            exp.DataType.Type.TINYINT: "INT64",
    727            exp.DataType.Type.VARBINARY: "BYTES",
    728            exp.DataType.Type.ROWVERSION: "BYTES",
    729            exp.DataType.Type.VARCHAR: "STRING",
    730            exp.DataType.Type.VARIANT: "ANY TYPE",
    731        }
    732
    733        PROPERTIES_LOCATION = {
    734            **generator.Generator.PROPERTIES_LOCATION,
    735            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    736            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    737        }
    738
    739        # WINDOW comes after QUALIFY
    740        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    741        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    742            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    743            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    744        }
    745
    746        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    747        RESERVED_KEYWORDS = {
    748            "all",
    749            "and",
    750            "any",
    751            "array",
    752            "as",
    753            "asc",
    754            "assert_rows_modified",
    755            "at",
    756            "between",
    757            "by",
    758            "case",
    759            "cast",
    760            "collate",
    761            "contains",
    762            "create",
    763            "cross",
    764            "cube",
    765            "current",
    766            "default",
    767            "define",
    768            "desc",
    769            "distinct",
    770            "else",
    771            "end",
    772            "enum",
    773            "escape",
    774            "except",
    775            "exclude",
    776            "exists",
    777            "extract",
    778            "false",
    779            "fetch",
    780            "following",
    781            "for",
    782            "from",
    783            "full",
    784            "group",
    785            "grouping",
    786            "groups",
    787            "hash",
    788            "having",
    789            "if",
    790            "ignore",
    791            "in",
    792            "inner",
    793            "intersect",
    794            "interval",
    795            "into",
    796            "is",
    797            "join",
    798            "lateral",
    799            "left",
    800            "like",
    801            "limit",
    802            "lookup",
    803            "merge",
    804            "natural",
    805            "new",
    806            "no",
    807            "not",
    808            "null",
    809            "nulls",
    810            "of",
    811            "on",
    812            "or",
    813            "order",
    814            "outer",
    815            "over",
    816            "partition",
    817            "preceding",
    818            "proto",
    819            "qualify",
    820            "range",
    821            "recursive",
    822            "respect",
    823            "right",
    824            "rollup",
    825            "rows",
    826            "select",
    827            "set",
    828            "some",
    829            "struct",
    830            "tablesample",
    831            "then",
    832            "to",
    833            "treat",
    834            "true",
    835            "unbounded",
    836            "union",
    837            "unnest",
    838            "using",
    839            "when",
    840            "where",
    841            "window",
    842            "with",
    843            "within",
    844        }
    845
    846        def mod_sql(self, expression: exp.Mod) -> str:
    847            this = expression.this
    848            expr = expression.expression
    849            return self.func(
    850                "MOD",
    851                this.unnest() if isinstance(this, exp.Paren) else this,
    852                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    853            )
    854
    855        def column_parts(self, expression: exp.Column) -> str:
    856            if expression.meta.get("quoted_column"):
    857                # If a column reference is of the form `dataset.table`.name, we need
    858                # to preserve the quoted table path, otherwise the reference breaks
    859                table_parts = ".".join(p.name for p in expression.parts[:-1])
    860                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    861                return f"{table_path}.{self.sql(expression, 'this')}"
    862
    863            return super().column_parts(expression)
    864
    865        def table_parts(self, expression: exp.Table) -> str:
    866            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    867            # we need to make sure the correct quoting is used in each case.
    868            #
    869            # For example, if there is a CTE x that clashes with a schema name, then the former will
    870            # return the table y in that schema, whereas the latter will return the CTE's y column:
    871            #
    872            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    873            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    874            if expression.meta.get("quoted_table"):
    875                table_parts = ".".join(p.name for p in expression.parts)
    876                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    877
    878            return super().table_parts(expression)
    879
    880        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    881            this = expression.this if isinstance(expression.this, exp.TsOrDsToDate) else expression
    882            return self.func("FORMAT_DATE", self.format_time(expression), this.this)
    883
    884        def eq_sql(self, expression: exp.EQ) -> str:
    885            # Operands of = cannot be NULL in BigQuery
    886            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    887                if not isinstance(expression.parent, exp.Update):
    888                    return "NULL"
    889
    890            return self.binary(expression, "=")
    891
    892        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    893            parent = expression.parent
    894
    895            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    896            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    897            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    898                return self.func(
    899                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    900                )
    901
    902            return super().attimezone_sql(expression)
    903
    904        def trycast_sql(self, expression: exp.TryCast) -> str:
    905            return self.cast_sql(expression, safe_prefix="SAFE_")
    906
    907        def bracket_sql(self, expression: exp.Bracket) -> str:
    908            this = expression.this
    909            expressions = expression.expressions
    910
    911            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    912                arg = expressions[0]
    913                if arg.type is None:
    914                    from sqlglot.optimizer.annotate_types import annotate_types
    915
    916                    arg = annotate_types(arg)
    917
    918                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    919                    # BQ doesn't support bracket syntax with string values for structs
    920                    return f"{self.sql(this)}.{arg.name}"
    921
    922            expressions_sql = self.expressions(expression, flat=True)
    923            offset = expression.args.get("offset")
    924
    925            if offset == 0:
    926                expressions_sql = f"OFFSET({expressions_sql})"
    927            elif offset == 1:
    928                expressions_sql = f"ORDINAL({expressions_sql})"
    929            elif offset is not None:
    930                self.unsupported(f"Unsupported array offset: {offset}")
    931
    932            if expression.args.get("safe"):
    933                expressions_sql = f"SAFE_{expressions_sql}"
    934
    935            return f"{self.sql(this)}[{expressions_sql}]"
    936
    937        def in_unnest_op(self, expression: exp.Unnest) -> str:
    938            return self.sql(expression)
    939
    940        def except_op(self, expression: exp.Except) -> str:
    941            if not expression.args.get("distinct"):
    942                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    943            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    944
    945        def intersect_op(self, expression: exp.Intersect) -> str:
    946            if not expression.args.get("distinct"):
    947                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    948            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    949
    950        def version_sql(self, expression: exp.Version) -> str:
    951            if expression.name == "TIMESTAMP":
    952                expression.set("this", "SYSTEM_TIME")
    953            return super().version_sql(expression)

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" (which is done in _qualify_columns()) 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"

EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY = True

Whether alias reference expansion before qualification should only happen for the GROUP BY clause.

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'}

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.

def normalize_identifier(self, expression: ~E) -> ~E: View Source

    278    def normalize_identifier(self, expression: E) -> E:
    279        if (
    280            isinstance(expression, exp.Identifier)
    281            and self.normalization_strategy is not NormalizationStrategy.CASE_SENSITIVE
    282        ):
    283            parent = expression.parent
    284            while isinstance(parent, exp.Dot):
    285                parent = parent.parent
    286
    287            # In BigQuery, CTEs are case-insensitive, but UDF and table names are case-sensitive
    288            # by default. The following check uses a heuristic to detect tables based on whether
    289            # they are qualified. This should generally be correct, because tables in BigQuery
    290            # must be qualified with at least a dataset, unless @@dataset_id is set.
    291            case_sensitive = (
    292                isinstance(parent, exp.UserDefinedFunction)
    293                or (
    294                    isinstance(parent, exp.Table)
    295                    and parent.db
    296                    and (parent.meta.get("quoted_table") or not parent.meta.get("maybe_column"))
    297                )
    298                or expression.meta.get("is_table")
    299            )
    300            if not case_sensitive:
    301                expression.set("this", expression.this.lower())
    302
    303        return 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}}}}}
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'}
INVERSE_TIME_TRIE: Dict = {'%': {'m': {'/': {'%': {'d': {'/': {'%': {'y': {0: True}}}}}}}, 'S': {'.': {'%': {'f': {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}}}
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

##### Inherited Members

sqlglot.dialects.dialect.Dialect
  Dialect
  INDEX_OFFSET
  ALIAS_POST_TABLESAMPLE
  TABLESAMPLE_SIZE_IS_PERCENT
  IDENTIFIERS_CAN_START_WITH_DIGIT
  DPIPE_IS_STRING_CONCAT
  STRICT_STRING_CONCAT
  COPY_PARAMS_ARE_CSV
  NULL_ORDERING
  TYPED_DIVISION
  SAFE_DIVISION
  CONCAT_COALESCE
  DATE_FORMAT
  DATEINT_FORMAT
  TIME_FORMAT
  PREFER_CTE_ALIAS_COLUMN
  SUPPORTS_ORDER_BY_ALL
  DATE_PART_MAPPING
  TYPE_TO_EXPRESSIONS
  ANNOTATORS
  get_or_raise
  format_time
  settings
  case_sensitive
  can_identify
  quote_identifier
  to_json_path
  parse
  parse_into
  generate
  transpile
  tokenize
  tokenizer
  jsonpath_tokenizer
  parser
  generator

class BigQuery.Tokenizer(sqlglot.tokens.Tokenizer): View Source

    305    class Tokenizer(tokens.Tokenizer):
    306        QUOTES = ["'", '"', '"""', "'''"]
    307        COMMENTS = ["--", "#", ("/*", "*/")]
    308        IDENTIFIERS = ["`"]
    309        STRING_ESCAPES = ["\\"]
    310
    311        HEX_STRINGS = [("0x", ""), ("0X", "")]
    312
    313        BYTE_STRINGS = [
    314            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("b", "B")
    315        ]
    316
    317        RAW_STRINGS = [
    318            (prefix + q, q) for q in t.cast(t.List[str], QUOTES) for prefix in ("r", "R")
    319        ]
    320
    321        KEYWORDS = {
    322            **tokens.Tokenizer.KEYWORDS,
    323            "ANY TYPE": TokenType.VARIANT,
    324            "BEGIN": TokenType.COMMAND,
    325            "BEGIN TRANSACTION": TokenType.BEGIN,
    326            "BYTES": TokenType.BINARY,
    327            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    328            "DATETIME": TokenType.TIMESTAMP,
    329            "DECLARE": TokenType.COMMAND,
    330            "ELSEIF": TokenType.COMMAND,
    331            "EXCEPTION": TokenType.COMMAND,
    332            "FLOAT64": TokenType.DOUBLE,
    333            "FOR SYSTEM_TIME": TokenType.TIMESTAMP_SNAPSHOT,
    334            "MODEL": TokenType.MODEL,
    335            "NOT DETERMINISTIC": TokenType.VOLATILE,
    336            "RECORD": TokenType.STRUCT,
    337            "TIMESTAMP": TokenType.TIMESTAMPTZ,
    338        }
    339        KEYWORDS.pop("DIV")
    340        KEYWORDS.pop("VALUES")
    341        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'''", "'''")]
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.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'>, '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_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'>, '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'>, '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'>, 'INT128': <TokenType.INT128: 'INT128'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, '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'>, '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.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, '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'>, 'BYTES': <TokenType.BINARY: 'BINARY'>, 'CURRENT_DATETIME': <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, 'DECLARE': <TokenType.COMMAND: 'COMMAND'>, 'ELSEIF': <TokenType.COMMAND: 'COMMAND'>, 'EXCEPTION': <TokenType.COMMAND: 'COMMAND'>, '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
  IDENTIFIER_ESCAPES
  VAR_SINGLE_TOKENS
  HEREDOC_TAG_IS_IDENTIFIER
  HEREDOC_STRING_ALTERNATIVE
  STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS
  WHITE_SPACE
  COMMANDS
  COMMAND_PREFIX_TOKENS
  NUMERIC_LITERALS
  dialect
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

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

    343    class Parser(parser.Parser):
    344        PREFIXED_PIVOT_COLUMNS = True
    345        LOG_DEFAULTS_TO_LN = True
    346        SUPPORTS_IMPLICIT_UNNEST = True
    347
    348        FUNCTIONS = {
    349            **parser.Parser.FUNCTIONS,
    350            "DATE": _build_date,
    351            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    352            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    353            "DATE_TRUNC": lambda args: exp.DateTrunc(
    354                unit=exp.Literal.string(str(seq_get(args, 1))),
    355                this=seq_get(args, 0),
    356            ),
    357            "DATETIME": _build_datetime,
    358            "DATETIME_ADD": build_date_delta_with_interval(exp.DatetimeAdd),
    359            "DATETIME_SUB": build_date_delta_with_interval(exp.DatetimeSub),
    360            "DIV": binary_from_function(exp.IntDiv),
    361            "FORMAT_DATE": lambda args: exp.TimeToStr(
    362                this=exp.TsOrDsToDate(this=seq_get(args, 1)), format=seq_get(args, 0)
    363            ),
    364            "GENERATE_ARRAY": exp.GenerateSeries.from_arg_list,
    365            "JSON_EXTRACT_SCALAR": lambda args: exp.JSONExtractScalar(
    366                this=seq_get(args, 0), expression=seq_get(args, 1) or exp.Literal.string("$")
    367            ),
    368            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
    369            "MD5": exp.MD5Digest.from_arg_list,
    370            "TO_HEX": _build_to_hex,
    371            "PARSE_DATE": lambda args: build_formatted_time(exp.StrToDate, "bigquery")(
    372                [seq_get(args, 1), seq_get(args, 0)]
    373            ),
    374            "PARSE_TIMESTAMP": _build_parse_timestamp,
    375            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    376            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    377                this=seq_get(args, 0),
    378                expression=seq_get(args, 1),
    379                position=seq_get(args, 2),
    380                occurrence=seq_get(args, 3),
    381                group=exp.Literal.number(1) if re.compile(args[1].name).groups == 1 else None,
    382            ),
    383            "SHA256": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(256)),
    384            "SHA512": lambda args: exp.SHA2(this=seq_get(args, 0), length=exp.Literal.number(512)),
    385            "SPLIT": lambda args: exp.Split(
    386                # https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split
    387                this=seq_get(args, 0),
    388                expression=seq_get(args, 1) or exp.Literal.string(","),
    389            ),
    390            "TIME": _build_time,
    391            "TIME_ADD": build_date_delta_with_interval(exp.TimeAdd),
    392            "TIME_SUB": build_date_delta_with_interval(exp.TimeSub),
    393            "TIMESTAMP": _build_timestamp,
    394            "TIMESTAMP_ADD": build_date_delta_with_interval(exp.TimestampAdd),
    395            "TIMESTAMP_SUB": build_date_delta_with_interval(exp.TimestampSub),
    396            "TIMESTAMP_MICROS": lambda args: exp.UnixToTime(
    397                this=seq_get(args, 0), scale=exp.UnixToTime.MICROS
    398            ),
    399            "TIMESTAMP_MILLIS": lambda args: exp.UnixToTime(
    400                this=seq_get(args, 0), scale=exp.UnixToTime.MILLIS
    401            ),
    402            "TIMESTAMP_SECONDS": lambda args: exp.UnixToTime(this=seq_get(args, 0)),
    403            "TO_JSON_STRING": exp.JSONFormat.from_arg_list,
    404        }
    405
    406        FUNCTION_PARSERS = {
    407            **parser.Parser.FUNCTION_PARSERS,
    408            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    409        }
    410        FUNCTION_PARSERS.pop("TRIM")
    411
    412        NO_PAREN_FUNCTIONS = {
    413            **parser.Parser.NO_PAREN_FUNCTIONS,
    414            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    415        }
    416
    417        NESTED_TYPE_TOKENS = {
    418            *parser.Parser.NESTED_TYPE_TOKENS,
    419            TokenType.TABLE,
    420        }
    421
    422        PROPERTY_PARSERS = {
    423            **parser.Parser.PROPERTY_PARSERS,
    424            "NOT DETERMINISTIC": lambda self: self.expression(
    425                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    426            ),
    427            "OPTIONS": lambda self: self._parse_with_property(),
    428        }
    429
    430        CONSTRAINT_PARSERS = {
    431            **parser.Parser.CONSTRAINT_PARSERS,
    432            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    433        }
    434
    435        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
    436        RANGE_PARSERS.pop(TokenType.OVERLAPS)
    437
    438        NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
    439
    440        STATEMENT_PARSERS = {
    441            **parser.Parser.STATEMENT_PARSERS,
    442            TokenType.ELSE: lambda self: self._parse_as_command(self._prev),
    443            TokenType.END: lambda self: self._parse_as_command(self._prev),
    444            TokenType.FOR: lambda self: self._parse_for_in(),
    445        }
    446
    447        BRACKET_OFFSETS = {
    448            "OFFSET": (0, False),
    449            "ORDINAL": (1, False),
    450            "SAFE_OFFSET": (0, True),
    451            "SAFE_ORDINAL": (1, True),
    452        }
    453
    454        def _parse_for_in(self) -> exp.ForIn:
    455            this = self._parse_range()
    456            self._match_text_seq("DO")
    457            return self.expression(exp.ForIn, this=this, expression=self._parse_statement())
    458
    459        def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:
    460            this = super()._parse_table_part(schema=schema) or self._parse_number()
    461
    462            # https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#table_names
    463            if isinstance(this, exp.Identifier):
    464                table_name = this.name
    465                while self._match(TokenType.DASH, advance=False) and self._next:
    466                    text = ""
    467                    while self._curr and self._curr.token_type != TokenType.DOT:
    468                        self._advance()
    469                        text += self._prev.text
    470                    table_name += text
    471
    472                this = exp.Identifier(this=table_name, quoted=this.args.get("quoted"))
    473            elif isinstance(this, exp.Literal):
    474                table_name = this.name
    475
    476                if self._is_connected() and self._parse_var(any_token=True):
    477                    table_name += self._prev.text
    478
    479                this = exp.Identifier(this=table_name, quoted=True)
    480
    481            return this
    482
    483        def _parse_table_parts(
    484            self, schema: bool = False, is_db_reference: bool = False, wildcard: bool = False
    485        ) -> exp.Table:
    486            table = super()._parse_table_parts(
    487                schema=schema, is_db_reference=is_db_reference, wildcard=True
    488            )
    489
    490            # proj-1.db.tbl -- `1.` is tokenized as a float so we need to unravel it here
    491            if not table.catalog:
    492                if table.db:
    493                    parts = table.db.split(".")
    494                    if len(parts) == 2 and not table.args["db"].quoted:
    495                        table.set("catalog", exp.Identifier(this=parts[0]))
    496                        table.set("db", exp.Identifier(this=parts[1]))
    497                else:
    498                    parts = table.name.split(".")
    499                    if len(parts) == 2 and not table.this.quoted:
    500                        table.set("db", exp.Identifier(this=parts[0]))
    501                        table.set("this", exp.Identifier(this=parts[1]))
    502
    503            if any("." in p.name for p in table.parts):
    504                catalog, db, this, *rest = (
    505                    exp.to_identifier(p, quoted=True)
    506                    for p in split_num_words(".".join(p.name for p in table.parts), ".", 3)
    507                )
    508
    509                if rest and this:
    510                    this = exp.Dot.build([this, *rest])  # type: ignore
    511
    512                table = exp.Table(
    513                    this=this, db=db, catalog=catalog, pivots=table.args.get("pivots")
    514                )
    515                table.meta["quoted_table"] = True
    516
    517            return table
    518
    519        def _parse_column(self) -> t.Optional[exp.Expression]:
    520            column = super()._parse_column()
    521            if isinstance(column, exp.Column):
    522                parts = column.parts
    523                if any("." in p.name for p in parts):
    524                    catalog, db, table, this, *rest = (
    525                        exp.to_identifier(p, quoted=True)
    526                        for p in split_num_words(".".join(p.name for p in parts), ".", 4)
    527                    )
    528
    529                    if rest and this:
    530                        this = exp.Dot.build([this, *rest])  # type: ignore
    531
    532                    column = exp.Column(this=this, table=table, db=db, catalog=catalog)
    533                    column.meta["quoted_column"] = True
    534
    535            return column
    536
    537        @t.overload
    538        def _parse_json_object(self, agg: Lit[False]) -> exp.JSONObject: ...
    539
    540        @t.overload
    541        def _parse_json_object(self, agg: Lit[True]) -> exp.JSONObjectAgg: ...
    542
    543        def _parse_json_object(self, agg=False):
    544            json_object = super()._parse_json_object()
    545            array_kv_pair = seq_get(json_object.expressions, 0)
    546
    547            # Converts BQ's "signature 2" of JSON_OBJECT into SQLGlot's canonical representation
    548            # https://cloud.google.com/bigquery/docs/reference/standard-sql/json_functions#json_object_signature2
    549            if (
    550                array_kv_pair
    551                and isinstance(array_kv_pair.this, exp.Array)
    552                and isinstance(array_kv_pair.expression, exp.Array)
    553            ):
    554                keys = array_kv_pair.this.expressions
    555                values = array_kv_pair.expression.expressions
    556
    557                json_object.set(
    558                    "expressions",
    559                    [exp.JSONKeyValue(this=k, expression=v) for k, v in zip(keys, values)],
    560                )
    561
    562            return json_object
    563
    564        def _parse_bracket(
    565            self, this: t.Optional[exp.Expression] = None
    566        ) -> t.Optional[exp.Expression]:
    567            bracket = super()._parse_bracket(this)
    568
    569            if this is bracket:
    570                return bracket
    571
    572            if isinstance(bracket, exp.Bracket):
    573                for expression in bracket.expressions:
    574                    name = expression.name.upper()
    575
    576                    if name not in self.BRACKET_OFFSETS:
    577                        break
    578
    579                    offset, safe = self.BRACKET_OFFSETS[name]
    580                    bracket.set("offset", offset)
    581                    bracket.set("safe", safe)
    582                    expression.replace(expression.expressions[0])
    583
    584            return bracket

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
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'>>, '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'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Array'>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, '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_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_OVERLAPS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayOverlaps'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, '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'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CORR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Corr'>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, '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_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>, '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 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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'>>, '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'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, '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'>>, 'GAP_FILL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GapFill'>>, 'GENERATE_DATE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateDateArray'>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, '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'>>, '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_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'>>, 'JSON_EXTRACT': <function build_extract_json_with_path.<locals>._builder>, 'JSON_EXTRACT_SCALAR': <function BigQuery.Parser.<lambda>>, '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'>>, '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'>>, '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'>>, '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'>>, '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'>>, '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'>>, '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 BigQuery.Parser.<lambda>>, '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>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, '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_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'>>, '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'>>, '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_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_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'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, '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'>>, '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'>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, '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'>>, '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>>, 'MOD': <function build_mod>, 'RPAD': <function Parser.<lambda>>, 'RIGHTPAD': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'TO_HEX': <function _build_to_hex>, 'DIV': <function binary_from_function.<locals>.<lambda>>, 'FORMAT_DATE': <function BigQuery.Parser.<lambda>>, 'GENERATE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, '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'>>, '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'>>}
FUNCTION_PARSERS = {'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <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>>, 'OPENJSON': <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>>, 'ARRAY': <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.ARRAY: 'ARRAY'>, <TokenType.NESTED: 'NESTED'>, <TokenType.TABLE: 'TABLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.MAP: 'MAP'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.LIST: 'LIST'>}
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>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'ENGINE': <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>>, 'ROW': <function Parser.<lambda>>, 'ROW_FORMAT': <function Parser.<lambda>>, 'SAMPLE': <function Parser.<lambda>>, 'SECURE': <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>>, 'WITH': <function Parser.<lambda>>, 'OPTIONS': <function BigQuery.Parser.<lambda>>}
RANGE_PARSERS = {<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.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'>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <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.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.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>>}
BRACKET_OFFSETS = {'OFFSET': (0, False), 'ORDINAL': (1, False), 'SAFE_OFFSET': (0, True), 'SAFE_ORDINAL': (1, True)}
ID_VAR_TOKENS = {<TokenType.UNNEST: 'UNNEST'>, <TokenType.TEXT: 'TEXT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.ANY: 'ANY'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.FULL: 'FULL'>, <TokenType.LIST: 'LIST'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TRUE: 'TRUE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TAG: 'TAG'>, <TokenType.UINT256: 'UINT256'>, <TokenType.SUPER: 'SUPER'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.LEFT: 'LEFT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.ASOF: 'ASOF'>, <TokenType.ALL: 'ALL'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.TOP: 'TOP'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.JSONB: 'JSONB'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.ROW: 'ROW'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.SEMI: 'SEMI'>, <TokenType.IPV4: 'IPV4'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.DELETE: 'DELETE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.DIV: 'DIV'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.FALSE: 'FALSE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.USE: 'USE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.SOME: 'SOME'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.CASE: 'CASE'>, <TokenType.INT: 'INT'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.ASC: 'ASC'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.NESTED: 'NESTED'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.INT128: 'INT128'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.CACHE: 'CACHE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.NAME: 'NAME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.NULL: 'NULL'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.COPY: 'COPY'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INET: 'INET'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.VAR: 'VAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.SHOW: 'SHOW'>, <TokenType.DATE: 'DATE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.XML: 'XML'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.MAP: 'MAP'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.DATE32: 'DATE32'>, <TokenType.DESC: 'DESC'>, <TokenType.ENUM: 'ENUM'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.TIME: 'TIME'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.IS: 'IS'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.KEEP: 'KEEP'>, <TokenType.INDEX: 'INDEX'>, <TokenType.UINT128: 'UINT128'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.JSON: 'JSON'>, <TokenType.SET: 'SET'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.BIT: 'BIT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.END: 'END'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.UINT: 'UINT'>, <TokenType.KILL: 'KILL'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.UUID: 'UUID'>, <TokenType.APPLY: 'APPLY'>, <TokenType.INT256: 'INT256'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.ANTI: 'ANTI'>}
TABLE_ALIAS_TOKENS = {<TokenType.UNNEST: 'UNNEST'>, <TokenType.TEXT: 'TEXT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.ANY: 'ANY'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.LIST: 'LIST'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.TRUE: 'TRUE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TAG: 'TAG'>, <TokenType.UINT256: 'UINT256'>, <TokenType.SUPER: 'SUPER'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.YEAR: 'YEAR'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.IPV6: 'IPV6'>, <TokenType.ALL: 'ALL'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.TOP: 'TOP'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.JSONB: 'JSONB'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.ROW: 'ROW'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.IPV4: 'IPV4'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.SEMI: 'SEMI'>, <TokenType.DELETE: 'DELETE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.DIV: 'DIV'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.FALSE: 'FALSE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.USE: 'USE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.SOME: 'SOME'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.CASE: 'CASE'>, <TokenType.INT: 'INT'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.ASC: 'ASC'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.NESTED: 'NESTED'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.INT128: 'INT128'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.CACHE: 'CACHE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.NAME: 'NAME'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.NULL: 'NULL'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.COPY: 'COPY'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INET: 'INET'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.VAR: 'VAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.SHOW: 'SHOW'>, <TokenType.DATE: 'DATE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.XML: 'XML'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.MAP: 'MAP'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.DATE32: 'DATE32'>, <TokenType.DESC: 'DESC'>, <TokenType.ENUM: 'ENUM'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.TIME: 'TIME'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.IS: 'IS'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.KEEP: 'KEEP'>, <TokenType.INDEX: 'INDEX'>, <TokenType.UINT128: 'UINT128'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.JSON: 'JSON'>, <TokenType.SET: 'SET'>, <TokenType.BIT: 'BIT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.END: 'END'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.UINT: 'UINT'>, <TokenType.KILL: 'KILL'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.UUID: 'UUID'>, <TokenType.INT256: 'INT256'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.ANTI: 'ANTI'>}
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
  INTERVAL_VARS
  ALIAS_TOKENS
  ARRAY_CONSTRUCTORS
  COMMENT_TABLE_ALIAS_TOKENS
  UPDATE_ALIAS_TOKENS
  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
  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
  KEY_CONSTRAINT_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
  STRICT_CAST
  IDENTIFY_PIVOT_STRINGS
  ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
  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
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  errors
  sql

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

    586    class Generator(generator.Generator):
    587        EXPLICIT_SET_OP = True
    588        INTERVAL_ALLOWS_PLURAL_FORM = False
    589        JOIN_HINTS = False
    590        QUERY_HINTS = False
    591        TABLE_HINTS = False
    592        LIMIT_FETCH = "LIMIT"
    593        RENAME_TABLE_WITH_DB = False
    594        NVL2_SUPPORTED = False
    595        UNNEST_WITH_ORDINALITY = False
    596        COLLATE_IS_FUNC = True
    597        LIMIT_ONLY_LITERALS = True
    598        SUPPORTS_TABLE_ALIAS_COLUMNS = False
    599        UNPIVOT_ALIASES_ARE_IDENTIFIERS = False
    600        JSON_KEY_VALUE_PAIR_SEP = ","
    601        NULL_ORDERING_SUPPORTED = False
    602        IGNORE_NULLS_IN_FUNC = True
    603        JSON_PATH_SINGLE_QUOTE_ESCAPE = True
    604        CAN_IMPLEMENT_ARRAY_ANY = True
    605        SUPPORTS_TO_NUMBER = False
    606        NAMED_PLACEHOLDER_TOKEN = "@"
    607        HEX_FUNC = "TO_HEX"
    608        WITH_PROPERTIES_PREFIX = "OPTIONS"
    609
    610        TRANSFORMS = {
    611            **generator.Generator.TRANSFORMS,
    612            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    613            exp.ArgMax: arg_max_or_min_no_count("MAX_BY"),
    614            exp.ArgMin: arg_max_or_min_no_count("MIN_BY"),
    615            exp.Array: inline_array_unless_query,
    616            exp.ArrayContains: _array_contains_sql,
    617            exp.ArrayFilter: filter_array_using_unnest,
    618            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    619            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
    620            exp.CollateProperty: lambda self, e: (
    621                f"DEFAULT COLLATE {self.sql(e, 'this')}"
    622                if e.args.get("default")
    623                else f"COLLATE {self.sql(e, 'this')}"
    624            ),
    625            exp.Commit: lambda *_: "COMMIT TRANSACTION",
    626            exp.CountIf: rename_func("COUNTIF"),
    627            exp.Create: _create_sql,
    628            exp.CTE: transforms.preprocess([_pushdown_cte_column_names]),
    629            exp.DateAdd: date_add_interval_sql("DATE", "ADD"),
    630            exp.DateDiff: lambda self, e: self.func(
    631                "DATE_DIFF", e.this, e.expression, unit_to_var(e)
    632            ),
    633            exp.DateFromParts: rename_func("DATE"),
    634            exp.DateStrToDate: datestrtodate_sql,
    635            exp.DateSub: date_add_interval_sql("DATE", "SUB"),
    636            exp.DatetimeAdd: date_add_interval_sql("DATETIME", "ADD"),
    637            exp.DatetimeSub: date_add_interval_sql("DATETIME", "SUB"),
    638            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    639            exp.FromTimeZone: lambda self, e: self.func(
    640                "DATETIME", self.func("TIMESTAMP", e.this, e.args.get("zone")), "'UTC'"
    641            ),
    642            exp.GenerateSeries: rename_func("GENERATE_ARRAY"),
    643            exp.GroupConcat: rename_func("STRING_AGG"),
    644            exp.Hex: lambda self, e: self.func("UPPER", self.func("TO_HEX", self.sql(e, "this"))),
    645            exp.If: if_sql(false_value="NULL"),
    646            exp.ILike: no_ilike_sql,
    647            exp.IntDiv: rename_func("DIV"),
    648            exp.JSONFormat: rename_func("TO_JSON_STRING"),
    649            exp.Max: max_or_greatest,
    650            exp.MD5: lambda self, e: self.func("TO_HEX", self.func("MD5", e.this)),
    651            exp.MD5Digest: rename_func("MD5"),
    652            exp.Min: min_or_least,
    653            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    654            exp.RegexpExtract: lambda self, e: self.func(
    655                "REGEXP_EXTRACT",
    656                e.this,
    657                e.expression,
    658                e.args.get("position"),
    659                e.args.get("occurrence"),
    660            ),
    661            exp.RegexpReplace: regexp_replace_sql,
    662            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    663            exp.ReturnsProperty: _returnsproperty_sql,
    664            exp.Rollback: lambda *_: "ROLLBACK TRANSACTION",
    665            exp.Select: transforms.preprocess(
    666                [
    667                    transforms.explode_to_unnest(),
    668                    transforms.unqualify_unnest,
    669                    transforms.eliminate_distinct_on,
    670                    _alias_ordered_group,
    671                    transforms.eliminate_semi_and_anti_joins,
    672                ]
    673            ),
    674            exp.SHA: rename_func("SHA1"),
    675            exp.SHA2: sha256_sql,
    676            exp.StabilityProperty: lambda self, e: (
    677                "DETERMINISTIC" if e.name == "IMMUTABLE" else "NOT DETERMINISTIC"
    678            ),
    679            exp.StrToDate: _str_to_datetime_sql,
    680            exp.StrToTime: _str_to_datetime_sql,
    681            exp.TimeAdd: date_add_interval_sql("TIME", "ADD"),
    682            exp.TimeFromParts: rename_func("TIME"),
    683            exp.TimestampFromParts: rename_func("DATETIME"),
    684            exp.TimeSub: date_add_interval_sql("TIME", "SUB"),
    685            exp.TimestampAdd: date_add_interval_sql("TIMESTAMP", "ADD"),
    686            exp.TimestampDiff: rename_func("TIMESTAMP_DIFF"),
    687            exp.TimestampSub: date_add_interval_sql("TIMESTAMP", "SUB"),
    688            exp.TimeStrToTime: timestrtotime_sql,
    689            exp.Transaction: lambda *_: "BEGIN TRANSACTION",
    690            exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression),
    691            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    692            exp.TsOrDsDiff: _ts_or_ds_diff_sql,
    693            exp.TsOrDsToTime: rename_func("TIME"),
    694            exp.TsOrDsToTimestamp: rename_func("DATETIME"),
    695            exp.Unhex: rename_func("FROM_HEX"),
    696            exp.UnixDate: rename_func("UNIX_DATE"),
    697            exp.UnixToTime: _unix_to_time_sql,
    698            exp.Values: _derived_table_values_to_unnest,
    699            exp.VariancePop: rename_func("VAR_POP"),
    700        }
    701
    702        SUPPORTED_JSON_PATH_PARTS = {
    703            exp.JSONPathKey,
    704            exp.JSONPathRoot,
    705            exp.JSONPathSubscript,
    706        }
    707
    708        TYPE_MAPPING = {
    709            **generator.Generator.TYPE_MAPPING,
    710            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    711            exp.DataType.Type.BIGINT: "INT64",
    712            exp.DataType.Type.BINARY: "BYTES",
    713            exp.DataType.Type.BOOLEAN: "BOOL",
    714            exp.DataType.Type.CHAR: "STRING",
    715            exp.DataType.Type.DECIMAL: "NUMERIC",
    716            exp.DataType.Type.DOUBLE: "FLOAT64",
    717            exp.DataType.Type.FLOAT: "FLOAT64",
    718            exp.DataType.Type.INT: "INT64",
    719            exp.DataType.Type.NCHAR: "STRING",
    720            exp.DataType.Type.NVARCHAR: "STRING",
    721            exp.DataType.Type.SMALLINT: "INT64",
    722            exp.DataType.Type.TEXT: "STRING",
    723            exp.DataType.Type.TIMESTAMP: "DATETIME",
    724            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    725            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    726            exp.DataType.Type.TINYINT: "INT64",
    727            exp.DataType.Type.VARBINARY: "BYTES",
    728            exp.DataType.Type.ROWVERSION: "BYTES",
    729            exp.DataType.Type.VARCHAR: "STRING",
    730            exp.DataType.Type.VARIANT: "ANY TYPE",
    731        }
    732
    733        PROPERTIES_LOCATION = {
    734            **generator.Generator.PROPERTIES_LOCATION,
    735            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    736            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    737        }
    738
    739        # WINDOW comes after QUALIFY
    740        # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#window_clause
    741        AFTER_HAVING_MODIFIER_TRANSFORMS = {
    742            "qualify": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["qualify"],
    743            "windows": generator.Generator.AFTER_HAVING_MODIFIER_TRANSFORMS["windows"],
    744        }
    745
    746        # from: https://cloud.google.com/bigquery/docs/reference/standard-sql/lexical#reserved_keywords
    747        RESERVED_KEYWORDS = {
    748            "all",
    749            "and",
    750            "any",
    751            "array",
    752            "as",
    753            "asc",
    754            "assert_rows_modified",
    755            "at",
    756            "between",
    757            "by",
    758            "case",
    759            "cast",
    760            "collate",
    761            "contains",
    762            "create",
    763            "cross",
    764            "cube",
    765            "current",
    766            "default",
    767            "define",
    768            "desc",
    769            "distinct",
    770            "else",
    771            "end",
    772            "enum",
    773            "escape",
    774            "except",
    775            "exclude",
    776            "exists",
    777            "extract",
    778            "false",
    779            "fetch",
    780            "following",
    781            "for",
    782            "from",
    783            "full",
    784            "group",
    785            "grouping",
    786            "groups",
    787            "hash",
    788            "having",
    789            "if",
    790            "ignore",
    791            "in",
    792            "inner",
    793            "intersect",
    794            "interval",
    795            "into",
    796            "is",
    797            "join",
    798            "lateral",
    799            "left",
    800            "like",
    801            "limit",
    802            "lookup",
    803            "merge",
    804            "natural",
    805            "new",
    806            "no",
    807            "not",
    808            "null",
    809            "nulls",
    810            "of",
    811            "on",
    812            "or",
    813            "order",
    814            "outer",
    815            "over",
    816            "partition",
    817            "preceding",
    818            "proto",
    819            "qualify",
    820            "range",
    821            "recursive",
    822            "respect",
    823            "right",
    824            "rollup",
    825            "rows",
    826            "select",
    827            "set",
    828            "some",
    829            "struct",
    830            "tablesample",
    831            "then",
    832            "to",
    833            "treat",
    834            "true",
    835            "unbounded",
    836            "union",
    837            "unnest",
    838            "using",
    839            "when",
    840            "where",
    841            "window",
    842            "with",
    843            "within",
    844        }
    845
    846        def mod_sql(self, expression: exp.Mod) -> str:
    847            this = expression.this
    848            expr = expression.expression
    849            return self.func(
    850                "MOD",
    851                this.unnest() if isinstance(this, exp.Paren) else this,
    852                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    853            )
    854
    855        def column_parts(self, expression: exp.Column) -> str:
    856            if expression.meta.get("quoted_column"):
    857                # If a column reference is of the form `dataset.table`.name, we need
    858                # to preserve the quoted table path, otherwise the reference breaks
    859                table_parts = ".".join(p.name for p in expression.parts[:-1])
    860                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    861                return f"{table_path}.{self.sql(expression, 'this')}"
    862
    863            return super().column_parts(expression)
    864
    865        def table_parts(self, expression: exp.Table) -> str:
    866            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    867            # we need to make sure the correct quoting is used in each case.
    868            #
    869            # For example, if there is a CTE x that clashes with a schema name, then the former will
    870            # return the table y in that schema, whereas the latter will return the CTE's y column:
    871            #
    872            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    873            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    874            if expression.meta.get("quoted_table"):
    875                table_parts = ".".join(p.name for p in expression.parts)
    876                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    877
    878            return super().table_parts(expression)
    879
    880        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    881            this = expression.this if isinstance(expression.this, exp.TsOrDsToDate) else expression
    882            return self.func("FORMAT_DATE", self.format_time(expression), this.this)
    883
    884        def eq_sql(self, expression: exp.EQ) -> str:
    885            # Operands of = cannot be NULL in BigQuery
    886            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    887                if not isinstance(expression.parent, exp.Update):
    888                    return "NULL"
    889
    890            return self.binary(expression, "=")
    891
    892        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    893            parent = expression.parent
    894
    895            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    896            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    897            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    898                return self.func(
    899                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    900                )
    901
    902            return super().attimezone_sql(expression)
    903
    904        def trycast_sql(self, expression: exp.TryCast) -> str:
    905            return self.cast_sql(expression, safe_prefix="SAFE_")
    906
    907        def bracket_sql(self, expression: exp.Bracket) -> str:
    908            this = expression.this
    909            expressions = expression.expressions
    910
    911            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    912                arg = expressions[0]
    913                if arg.type is None:
    914                    from sqlglot.optimizer.annotate_types import annotate_types
    915
    916                    arg = annotate_types(arg)
    917
    918                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    919                    # BQ doesn't support bracket syntax with string values for structs
    920                    return f"{self.sql(this)}.{arg.name}"
    921
    922            expressions_sql = self.expressions(expression, flat=True)
    923            offset = expression.args.get("offset")
    924
    925            if offset == 0:
    926                expressions_sql = f"OFFSET({expressions_sql})"
    927            elif offset == 1:
    928                expressions_sql = f"ORDINAL({expressions_sql})"
    929            elif offset is not None:
    930                self.unsupported(f"Unsupported array offset: {offset}")
    931
    932            if expression.args.get("safe"):
    933                expressions_sql = f"SAFE_{expressions_sql}"
    934
    935            return f"{self.sql(this)}[{expressions_sql}]"
    936
    937        def in_unnest_op(self, expression: exp.Unnest) -> str:
    938            return self.sql(expression)
    939
    940        def except_op(self, expression: exp.Except) -> str:
    941            if not expression.args.get("distinct"):
    942                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    943            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    944
    945        def intersect_op(self, expression: exp.Intersect) -> str:
    946            if not expression.args.get("distinct"):
    947                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    948            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    949
    950        def version_sql(self, expression: exp.Version) -> str:
    951            if expression.name == "TIMESTAMP":
    952                expression.set("this", "SYSTEM_TIME")
    953            return super().version_sql(expression)

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

EXPLICIT_SET_OP = 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'
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.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <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.CopyGrantsProperty'>: <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.EncodeColumnConstraint'>: <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.ExternalProperty'>: <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.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function Generator.<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.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <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.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.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TagColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <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.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <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.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <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.ArraySize'>: <function rename_func.<locals>.<lambda>>, <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 rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Hex'>: <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.JSONFormat'>: <function rename_func.<locals>.<lambda>>, <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.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.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.Trim'>: <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.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>>}
SUPPORTED_JSON_PATH_PARTS = {<class 'sqlglot.expressions.JSONPathKey'>, <class 'sqlglot.expressions.JSONPathSubscript'>, <class 'sqlglot.expressions.JSONPathRoot'>}
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'STRING', <Type.NVARCHAR: 'NVARCHAR'>: 'STRING', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'BYTES', <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.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP', <Type.TINYINT: 'TINYINT'>: 'INT64', <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.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.EngineProperty'>: <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.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.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.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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.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.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
AFTER_HAVING_MODIFIER_TRANSFORMS = {'qualify': <function Generator.<lambda>>, 'windows': <function Generator.<lambda>>}
RESERVED_KEYWORDS = {'select', 'inner', 'using', 'nulls', 'right', 'end', 'lookup', 'qualify', 'and', 'assert_rows_modified', 'new', 'except', 'struct', 'merge', 'into', 'lateral', 'or', 'having', 'as', 'exists', 'some', 'like', 'where', 'full', 'join', 'default', 'cube', 'tablesample', 'unnest', 'respect', 'else', 'desc', 'enum', 'distinct', 'grouping', 'then', 'case', 'order', 'define', 'proto', 'group', 'partition', 'preceding', 'contains', 'no', 'intersect', 'to', 'treat', 'all', 'when', 'by', 'interval', 'for', 'is', 'current', 'over', 'of', 'on', 'create', 'null', 'left', 'cast', 'groups', 'limit', 'window', 'at', 'between', 'any', 'rows', 'array', 'rollup', 'natural', 'union', 'recursive', 'asc', 'false', 'not', 'set', 'collate', 'range', 'exclude', 'with', 'true', 'unbounded', 'escape', 'hash', 'following', 'ignore', 'fetch', 'extract', 'outer', 'from', 'in', 'within', 'cross', 'if'}
def mod_sql(self, expression: sqlglot.expressions.Mod) -> str: View Source

    846        def mod_sql(self, expression: exp.Mod) -> str:
    847            this = expression.this
    848            expr = expression.expression
    849            return self.func(
    850                "MOD",
    851                this.unnest() if isinstance(this, exp.Paren) else this,
    852                expr.unnest() if isinstance(expr, exp.Paren) else expr,
    853            )

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

    855        def column_parts(self, expression: exp.Column) -> str:
    856            if expression.meta.get("quoted_column"):
    857                # If a column reference is of the form `dataset.table`.name, we need
    858                # to preserve the quoted table path, otherwise the reference breaks
    859                table_parts = ".".join(p.name for p in expression.parts[:-1])
    860                table_path = self.sql(exp.Identifier(this=table_parts, quoted=True))
    861                return f"{table_path}.{self.sql(expression, 'this')}"
    862
    863            return super().column_parts(expression)

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

    865        def table_parts(self, expression: exp.Table) -> str:
    866            # Depending on the context, `x.y` may not resolve to the same data source as `x`.`y`, so
    867            # we need to make sure the correct quoting is used in each case.
    868            #
    869            # For example, if there is a CTE x that clashes with a schema name, then the former will
    870            # return the table y in that schema, whereas the latter will return the CTE's y column:
    871            #
    872            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x.y`   -> cross join
    873            # - WITH x AS (SELECT [1, 2] AS y) SELECT * FROM x, `x`.`y` -> implicit unnest
    874            if expression.meta.get("quoted_table"):
    875                table_parts = ".".join(p.name for p in expression.parts)
    876                return self.sql(exp.Identifier(this=table_parts, quoted=True))
    877
    878            return super().table_parts(expression)

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

    880        def timetostr_sql(self, expression: exp.TimeToStr) -> str:
    881            this = expression.this if isinstance(expression.this, exp.TsOrDsToDate) else expression
    882            return self.func("FORMAT_DATE", self.format_time(expression), this.this)

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

    884        def eq_sql(self, expression: exp.EQ) -> str:
    885            # Operands of = cannot be NULL in BigQuery
    886            if isinstance(expression.left, exp.Null) or isinstance(expression.right, exp.Null):
    887                if not isinstance(expression.parent, exp.Update):
    888                    return "NULL"
    889
    890            return self.binary(expression, "=")

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

    892        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    893            parent = expression.parent
    894
    895            # BigQuery allows CAST(.. AS {STRING|TIMESTAMP} [FORMAT <fmt> [AT TIME ZONE <tz>]]).
    896            # Only the TIMESTAMP one should use the below conversion, when AT TIME ZONE is included.
    897            if not isinstance(parent, exp.Cast) or not parent.to.is_type("text"):
    898                return self.func(
    899                    "TIMESTAMP", self.func("DATETIME", expression.this, expression.args.get("zone"))
    900                )
    901
    902            return super().attimezone_sql(expression)

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

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

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

    907        def bracket_sql(self, expression: exp.Bracket) -> str:
    908            this = expression.this
    909            expressions = expression.expressions
    910
    911            if len(expressions) == 1 and this and this.is_type(exp.DataType.Type.STRUCT):
    912                arg = expressions[0]
    913                if arg.type is None:
    914                    from sqlglot.optimizer.annotate_types import annotate_types
    915
    916                    arg = annotate_types(arg)
    917
    918                if arg.type and arg.type.this in exp.DataType.TEXT_TYPES:
    919                    # BQ doesn't support bracket syntax with string values for structs
    920                    return f"{self.sql(this)}.{arg.name}"
    921
    922            expressions_sql = self.expressions(expression, flat=True)
    923            offset = expression.args.get("offset")
    924
    925            if offset == 0:
    926                expressions_sql = f"OFFSET({expressions_sql})"
    927            elif offset == 1:
    928                expressions_sql = f"ORDINAL({expressions_sql})"
    929            elif offset is not None:
    930                self.unsupported(f"Unsupported array offset: {offset}")
    931
    932            if expression.args.get("safe"):
    933                expressions_sql = f"SAFE_{expressions_sql}"
    934
    935            return f"{self.sql(this)}[{expressions_sql}]"

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

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

def except_op(self, expression: sqlglot.expressions.Except) -> str: View Source

    940        def except_op(self, expression: exp.Except) -> str:
    941            if not expression.args.get("distinct"):
    942                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    943            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"

def intersect_op(self, expression: sqlglot.expressions.Intersect) -> str: View Source

    945        def intersect_op(self, expression: exp.Intersect) -> str:
    946            if not expression.args.get("distinct"):
    947                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    948            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"

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

    950        def version_sql(self, expression: exp.Version) -> str:
    951            if expression.name == "TIMESTAMP":
    952                expression.set("this", "SYSTEM_TIME")
    953            return super().version_sql(expression)

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
  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
  PARSE_JSON_NAME
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  WITH_SEPARATED_COMMENTS
  EXCLUDE_COMMENTS
  UNWRAPPED_INTERVAL_VALUES
  PARAMETERIZABLE_TEXT_TYPES
  EXPRESSIONS_WITHOUT_NESTED_CTES
  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
  pad_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
  transformcolumnconstraint_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
  except_sql
  fetch_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
  intersect_sql
  introducer_sql
  kill_sql
  pseudotype_sql
  objectidentifier_sql
  onconflict_sql
  returning_sql
  rowformatdelimitedproperty_sql
  withtablehint_sql
  indextablehint_sql
  historicaldata_sql
  table_sql
  tablesample_sql
  pivot_sql
  tuple_sql
  update_sql
  values_sql
  var_sql
  into_sql
  from_sql
  group_sql
  having_sql
  connect_sql
  prior_sql
  join_sql
  lambda_sql
  lateral_op
  lateral_sql
  limit_sql
  offset_sql
  setitem_sql
  set_sql
  pragma_sql
  lock_sql
  literal_sql
  escape_str
  loaddata_sql
  null_sql
  boolean_sql
  order_sql
  withfill_sql
  cluster_sql
  distribute_sql
  sort_sql
  ordered_sql
  matchrecognizemeasure_sql
  matchrecognize_sql
  query_modifiers
  options_modifier
  queryoption_sql
  offset_limit_modifiers
  after_limit_modifiers
  select_sql
  schema_sql
  schema_columns_sql
  star_sql
  parameter_sql
  sessionparameter_sql
  placeholder_sql
  subquery_sql
  qualify_sql
  set_operations
  union_sql
  union_op
  unnest_sql
  prewhere_sql
  where_sql
  window_sql
  partition_by_sql
  windowspec_sql
  withingroup_sql
  between_sql
  bracket_offset_expressions
  all_sql
  any_sql
  exists_sql
  case_sql
  constraint_sql
  nextvaluefor_sql
  extract_sql
  trim_sql
  convert_concat_args
  concat_sql
  concatws_sql
  check_sql
  foreignkey_sql
  primarykey_sql
  if_sql
  matchagainst_sql
  jsonkeyvalue_sql
  jsonpath_sql
  json_path_part
  formatjson_sql
  jsonobject_sql
  jsonobjectagg_sql
  jsonarray_sql
  jsonarrayagg_sql
  jsoncolumndef_sql
  jsonschema_sql
  jsontable_sql
  openjsoncolumndef_sql
  openjson_sql
  in_sql
  interval_sql
  return_sql
  reference_sql
  anonymous_sql
  paren_sql
  neg_sql
  not_sql
  alias_sql
  pivotalias_sql
  aliases_sql
  atindex_sql
  fromtimezone_sql
  add_sql
  and_sql
  or_sql
  xor_sql
  connector_sql
  bitwiseand_sql
  bitwiseleftshift_sql
  bitwisenot_sql
  bitwiseor_sql
  bitwiserightshift_sql
  bitwisexor_sql
  cast_sql
  currentdate_sql
  currenttimestamp_sql
  collate_sql
  command_sql
  comment_sql
  mergetreettlaction_sql
  mergetreettl_sql
  transaction_sql
  commit_sql
  rollback_sql
  altercolumn_sql
  alterdiststyle_sql
  altersortkey_sql
  renametable_sql
  renamecolumn_sql
  alterset_sql
  altertable_sql
  add_column_sql
  droppartition_sql
  addconstraint_sql
  distinct_sql
  ignorenulls_sql
  respectnulls_sql
  havingmax_sql
  intdiv_sql
  dpipe_sql
  div_sql
  overlaps_sql
  distance_sql
  dot_sql
  propertyeq_sql
  escape_sql
  glob_sql
  gt_sql
  gte_sql
  ilike_sql
  ilikeany_sql
  is_sql
  like_sql
  likeany_sql
  similarto_sql
  lt_sql
  lte_sql
  mul_sql
  neq_sql
  nullsafeeq_sql
  nullsafeneq_sql
  slice_sql
  sub_sql
  try_sql
  log_sql
  use_sql
  binary
  function_fallback_sql
  func
  format_args
  too_wide
  format_time
  expressions
  op_expressions
  naked_property
  tag_sql
  token_sql
  userdefinedfunction_sql
  joinhint_sql
  kwarg_sql
  when_sql
  merge_sql
  tochar_sql
  tonumber_sql
  dictproperty_sql
  dictrange_sql
  dictsubproperty_sql
  oncluster_sql
  clusteredbyproperty_sql
  anyvalue_sql
  querytransform_sql
  indexconstraintoption_sql
  checkcolumnconstraint_sql
  indexcolumnconstraint_sql
  nvl2_sql
  comprehension_sql
  columnprefix_sql
  opclass_sql
  predict_sql
  forin_sql
  refresh_sql
  operator_sql
  toarray_sql
  tsordstotime_sql
  tsordstotimestamp_sql
  tsordstodate_sql
  unixdate_sql
  lastday_sql
  dateadd_sql
  arrayany_sql
  generateseries_sql
  struct_sql
  partitionrange_sql
  truncatetable_sql
  convert_sql
  copyparameter_sql
  credentials_sql
  copy_sql
  semicolon_sql
  datadeletionproperty_sql
  maskingpolicycolumnconstraint_sql
  gapfill_sql
  scope_resolution
  scoperesolution_sql
  parsejson_sql
  length_sql
  rand_sql
  strtodate_sql
  strtotime_sql
  changes_sql
  pad_sql