sqlglot.dialects.mysql API documentation

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# sqlglot.dialects.mysql

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      1from __future__ import annotations
      2
      3import typing as t
      4
      5from sqlglot import exp, generator, parser, tokens, transforms
      6from sqlglot.dialects.dialect import (
      7    Dialect,
      8    NormalizationStrategy,
      9    arrow_json_extract_sql,
     10    date_add_interval_sql,
     11    datestrtodate_sql,
     12    build_formatted_time,
     13    isnull_to_is_null,
     14    locate_to_strposition,
     15    max_or_greatest,
     16    min_or_least,
     17    no_ilike_sql,
     18    no_paren_current_date_sql,
     19    no_pivot_sql,
     20    no_tablesample_sql,
     21    no_trycast_sql,
     22    build_date_delta,
     23    build_date_delta_with_interval,
     24    rename_func,
     25    strposition_to_locate_sql,
     26    unit_to_var,
     27)
     28from sqlglot.helper import seq_get
     29from sqlglot.tokens import TokenType
     30
     31
     32def _show_parser(*args: t.Any, **kwargs: t.Any) -> t.Callable[[MySQL.Parser], exp.Show]:
     33    def _parse(self: MySQL.Parser) -> exp.Show:
     34        return self._parse_show_mysql(*args, **kwargs)
     35
     36    return _parse
     37
     38
     39def _date_trunc_sql(self: MySQL.Generator, expression: exp.DateTrunc) -> str:
     40    expr = self.sql(expression, "this")
     41    unit = expression.text("unit").upper()
     42
     43    if unit == "WEEK":
     44        concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')"
     45        date_format = "%Y %u %w"
     46    elif unit == "MONTH":
     47        concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')"
     48        date_format = "%Y %c %e"
     49    elif unit == "QUARTER":
     50        concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')"
     51        date_format = "%Y %c %e"
     52    elif unit == "YEAR":
     53        concat = f"CONCAT(YEAR({expr}), ' 1 1')"
     54        date_format = "%Y %c %e"
     55    else:
     56        if unit != "DAY":
     57            self.unsupported(f"Unexpected interval unit: {unit}")
     58        return self.func("DATE", expr)
     59
     60    return self.func("STR_TO_DATE", concat, f"'{date_format}'")
     61
     62
     63# All specifiers for time parts (as opposed to date parts)
     64# https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format
     65TIME_SPECIFIERS = {"f", "H", "h", "I", "i", "k", "l", "p", "r", "S", "s", "T"}
     66
     67
     68def _has_time_specifier(date_format: str) -> bool:
     69    i = 0
     70    length = len(date_format)
     71
     72    while i < length:
     73        if date_format[i] == "%":
     74            i += 1
     75            if i < length and date_format[i] in TIME_SPECIFIERS:
     76                return True
     77        i += 1
     78    return False
     79
     80
     81def _str_to_date(args: t.List) -> exp.StrToDate | exp.StrToTime:
     82    mysql_date_format = seq_get(args, 1)
     83    date_format = MySQL.format_time(mysql_date_format)
     84    this = seq_get(args, 0)
     85
     86    if mysql_date_format and _has_time_specifier(mysql_date_format.name):
     87        return exp.StrToTime(this=this, format=date_format)
     88
     89    return exp.StrToDate(this=this, format=date_format)
     90
     91
     92def _str_to_date_sql(
     93    self: MySQL.Generator, expression: exp.StrToDate | exp.StrToTime | exp.TsOrDsToDate
     94) -> str:
     95    return self.func("STR_TO_DATE", expression.this, self.format_time(expression))
     96
     97
     98def _trim_sql(self: MySQL.Generator, expression: exp.Trim) -> str:
     99    target = self.sql(expression, "this")
    100    trim_type = self.sql(expression, "position")
    101    remove_chars = self.sql(expression, "expression")
    102
    103    # Use TRIM/LTRIM/RTRIM syntax if the expression isn't mysql-specific
    104    if not remove_chars:
    105        return self.trim_sql(expression)
    106
    107    trim_type = f"{trim_type} " if trim_type else ""
    108    remove_chars = f"{remove_chars} " if remove_chars else ""
    109    from_part = "FROM " if trim_type or remove_chars else ""
    110    return f"TRIM({trim_type}{remove_chars}{from_part}{target})"
    111
    112
    113def _unix_to_time_sql(self: MySQL.Generator, expression: exp.UnixToTime) -> str:
    114    scale = expression.args.get("scale")
    115    timestamp = expression.this
    116
    117    if scale in (None, exp.UnixToTime.SECONDS):
    118        return self.func("FROM_UNIXTIME", timestamp, self.format_time(expression))
    119
    120    return self.func(
    121        "FROM_UNIXTIME",
    122        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)),
    123        self.format_time(expression),
    124    )
    125
    126
    127def date_add_sql(
    128    kind: str,
    129) -> t.Callable[[generator.Generator, exp.Expression], str]:
    130    def func(self: generator.Generator, expression: exp.Expression) -> str:
    131        return self.func(
    132            f"DATE_{kind}",
    133            expression.this,
    134            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
    135        )
    136
    137    return func
    138
    139
    140def _ts_or_ds_to_date_sql(self: MySQL.Generator, expression: exp.TsOrDsToDate) -> str:
    141    time_format = expression.args.get("format")
    142    return _str_to_date_sql(self, expression) if time_format else self.func("DATE", expression.this)
    143
    144
    145def _remove_ts_or_ds_to_date(
    146    to_sql: t.Optional[t.Callable[[MySQL.Generator, exp.Expression], str]] = None,
    147    args: t.Tuple[str, ...] = ("this",),
    148) -> t.Callable[[MySQL.Generator, exp.Func], str]:
    149    def func(self: MySQL.Generator, expression: exp.Func) -> str:
    150        for arg_key in args:
    151            arg = expression.args.get(arg_key)
    152            if isinstance(arg, exp.TsOrDsToDate) and not arg.args.get("format"):
    153                expression.set(arg_key, arg.this)
    154
    155        return to_sql(self, expression) if to_sql else self.function_fallback_sql(expression)
    156
    157    return func
    158
    159
    160class MySQL(Dialect):
    161    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
    162    IDENTIFIERS_CAN_START_WITH_DIGIT = True
    163
    164    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
    165    # behavior on Linux systems. For MacOS and Windows systems, one can override this
    166    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
    167    #
    168    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
    169    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
    170
    171    TIME_FORMAT = "'%Y-%m-%d %T'"
    172    DPIPE_IS_STRING_CONCAT = False
    173    SUPPORTS_USER_DEFINED_TYPES = False
    174    SUPPORTS_SEMI_ANTI_JOIN = False
    175    SAFE_DIVISION = True
    176
    177    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
    178    TIME_MAPPING = {
    179        "%M": "%B",
    180        "%c": "%-m",
    181        "%e": "%-d",
    182        "%h": "%I",
    183        "%i": "%M",
    184        "%s": "%S",
    185        "%u": "%W",
    186        "%k": "%-H",
    187        "%l": "%-I",
    188        "%T": "%H:%M:%S",
    189        "%W": "%a",
    190    }
    191
    192    class Tokenizer(tokens.Tokenizer):
    193        QUOTES = ["'", '"']
    194        COMMENTS = ["--", "#", ("/*", "*/")]
    195        IDENTIFIERS = ["`"]
    196        STRING_ESCAPES = ["'", '"', "\\"]
    197        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    198        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    199
    200        KEYWORDS = {
    201            **tokens.Tokenizer.KEYWORDS,
    202            "CHARSET": TokenType.CHARACTER_SET,
    203            "FORCE": TokenType.FORCE,
    204            "IGNORE": TokenType.IGNORE,
    205            "LOCK TABLES": TokenType.COMMAND,
    206            "LONGBLOB": TokenType.LONGBLOB,
    207            "LONGTEXT": TokenType.LONGTEXT,
    208            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    209            "TINYBLOB": TokenType.TINYBLOB,
    210            "TINYTEXT": TokenType.TINYTEXT,
    211            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    212            "MEDIUMINT": TokenType.MEDIUMINT,
    213            "MEMBER OF": TokenType.MEMBER_OF,
    214            "SEPARATOR": TokenType.SEPARATOR,
    215            "START": TokenType.BEGIN,
    216            "SIGNED": TokenType.BIGINT,
    217            "SIGNED INTEGER": TokenType.BIGINT,
    218            "UNLOCK TABLES": TokenType.COMMAND,
    219            "UNSIGNED": TokenType.UBIGINT,
    220            "UNSIGNED INTEGER": TokenType.UBIGINT,
    221            "YEAR": TokenType.YEAR,
    222            "_ARMSCII8": TokenType.INTRODUCER,
    223            "_ASCII": TokenType.INTRODUCER,
    224            "_BIG5": TokenType.INTRODUCER,
    225            "_BINARY": TokenType.INTRODUCER,
    226            "_CP1250": TokenType.INTRODUCER,
    227            "_CP1251": TokenType.INTRODUCER,
    228            "_CP1256": TokenType.INTRODUCER,
    229            "_CP1257": TokenType.INTRODUCER,
    230            "_CP850": TokenType.INTRODUCER,
    231            "_CP852": TokenType.INTRODUCER,
    232            "_CP866": TokenType.INTRODUCER,
    233            "_CP932": TokenType.INTRODUCER,
    234            "_DEC8": TokenType.INTRODUCER,
    235            "_EUCJPMS": TokenType.INTRODUCER,
    236            "_EUCKR": TokenType.INTRODUCER,
    237            "_GB18030": TokenType.INTRODUCER,
    238            "_GB2312": TokenType.INTRODUCER,
    239            "_GBK": TokenType.INTRODUCER,
    240            "_GEOSTD8": TokenType.INTRODUCER,
    241            "_GREEK": TokenType.INTRODUCER,
    242            "_HEBREW": TokenType.INTRODUCER,
    243            "_HP8": TokenType.INTRODUCER,
    244            "_KEYBCS2": TokenType.INTRODUCER,
    245            "_KOI8R": TokenType.INTRODUCER,
    246            "_KOI8U": TokenType.INTRODUCER,
    247            "_LATIN1": TokenType.INTRODUCER,
    248            "_LATIN2": TokenType.INTRODUCER,
    249            "_LATIN5": TokenType.INTRODUCER,
    250            "_LATIN7": TokenType.INTRODUCER,
    251            "_MACCE": TokenType.INTRODUCER,
    252            "_MACROMAN": TokenType.INTRODUCER,
    253            "_SJIS": TokenType.INTRODUCER,
    254            "_SWE7": TokenType.INTRODUCER,
    255            "_TIS620": TokenType.INTRODUCER,
    256            "_UCS2": TokenType.INTRODUCER,
    257            "_UJIS": TokenType.INTRODUCER,
    258            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    259            "_UTF8": TokenType.INTRODUCER,
    260            "_UTF16": TokenType.INTRODUCER,
    261            "_UTF16LE": TokenType.INTRODUCER,
    262            "_UTF32": TokenType.INTRODUCER,
    263            "_UTF8MB3": TokenType.INTRODUCER,
    264            "_UTF8MB4": TokenType.INTRODUCER,
    265            "@@": TokenType.SESSION_PARAMETER,
    266        }
    267
    268        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
    269
    270    class Parser(parser.Parser):
    271        FUNC_TOKENS = {
    272            *parser.Parser.FUNC_TOKENS,
    273            TokenType.DATABASE,
    274            TokenType.SCHEMA,
    275            TokenType.VALUES,
    276        }
    277
    278        CONJUNCTION = {
    279            **parser.Parser.CONJUNCTION,
    280            TokenType.DAMP: exp.And,
    281            TokenType.XOR: exp.Xor,
    282            TokenType.DPIPE: exp.Or,
    283        }
    284
    285        TABLE_ALIAS_TOKENS = (
    286            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    287        )
    288
    289        RANGE_PARSERS = {
    290            **parser.Parser.RANGE_PARSERS,
    291            TokenType.MEMBER_OF: lambda self, this: self.expression(
    292                exp.JSONArrayContains,
    293                this=this,
    294                expression=self._parse_wrapped(self._parse_expression),
    295            ),
    296        }
    297
    298        FUNCTIONS = {
    299            **parser.Parser.FUNCTIONS,
    300            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    301            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    302            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    303            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    304            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    305            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    306            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    307            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    308            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    309            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    310            "ISNULL": isnull_to_is_null,
    311            "LOCATE": locate_to_strposition,
    312            "MAKETIME": exp.TimeFromParts.from_arg_list,
    313            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    314            "MONTHNAME": lambda args: exp.TimeToStr(
    315                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    316                format=exp.Literal.string("%B"),
    317            ),
    318            "STR_TO_DATE": _str_to_date,
    319            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    320            "TO_DAYS": lambda args: exp.paren(
    321                exp.DateDiff(
    322                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    323                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    324                    unit=exp.var("DAY"),
    325                )
    326                + 1
    327            ),
    328            "WEEK": lambda args: exp.Week(
    329                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    330            ),
    331            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    332            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    333        }
    334
    335        FUNCTION_PARSERS = {
    336            **parser.Parser.FUNCTION_PARSERS,
    337            "CHAR": lambda self: self._parse_chr(),
    338            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    339            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    340            "VALUES": lambda self: self.expression(
    341                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    342            ),
    343        }
    344
    345        STATEMENT_PARSERS = {
    346            **parser.Parser.STATEMENT_PARSERS,
    347            TokenType.SHOW: lambda self: self._parse_show(),
    348        }
    349
    350        SHOW_PARSERS = {
    351            "BINARY LOGS": _show_parser("BINARY LOGS"),
    352            "MASTER LOGS": _show_parser("BINARY LOGS"),
    353            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    354            "CHARACTER SET": _show_parser("CHARACTER SET"),
    355            "CHARSET": _show_parser("CHARACTER SET"),
    356            "COLLATION": _show_parser("COLLATION"),
    357            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    358            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    359            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    360            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    361            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    362            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    363            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    364            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    365            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    366            "DATABASES": _show_parser("DATABASES"),
    367            "SCHEMAS": _show_parser("DATABASES"),
    368            "ENGINE": _show_parser("ENGINE", target=True),
    369            "STORAGE ENGINES": _show_parser("ENGINES"),
    370            "ENGINES": _show_parser("ENGINES"),
    371            "ERRORS": _show_parser("ERRORS"),
    372            "EVENTS": _show_parser("EVENTS"),
    373            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    374            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    375            "GRANTS": _show_parser("GRANTS", target="FOR"),
    376            "INDEX": _show_parser("INDEX", target="FROM"),
    377            "MASTER STATUS": _show_parser("MASTER STATUS"),
    378            "OPEN TABLES": _show_parser("OPEN TABLES"),
    379            "PLUGINS": _show_parser("PLUGINS"),
    380            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    381            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    382            "PRIVILEGES": _show_parser("PRIVILEGES"),
    383            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    384            "PROCESSLIST": _show_parser("PROCESSLIST"),
    385            "PROFILE": _show_parser("PROFILE"),
    386            "PROFILES": _show_parser("PROFILES"),
    387            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    388            "REPLICAS": _show_parser("REPLICAS"),
    389            "SLAVE HOSTS": _show_parser("REPLICAS"),
    390            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    391            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    392            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    393            "SESSION STATUS": _show_parser("STATUS"),
    394            "STATUS": _show_parser("STATUS"),
    395            "TABLE STATUS": _show_parser("TABLE STATUS"),
    396            "FULL TABLES": _show_parser("TABLES", full=True),
    397            "TABLES": _show_parser("TABLES"),
    398            "TRIGGERS": _show_parser("TRIGGERS"),
    399            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    400            "SESSION VARIABLES": _show_parser("VARIABLES"),
    401            "VARIABLES": _show_parser("VARIABLES"),
    402            "WARNINGS": _show_parser("WARNINGS"),
    403        }
    404
    405        PROPERTY_PARSERS = {
    406            **parser.Parser.PROPERTY_PARSERS,
    407            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    408        }
    409
    410        SET_PARSERS = {
    411            **parser.Parser.SET_PARSERS,
    412            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    413            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    414            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    415            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    416            "NAMES": lambda self: self._parse_set_item_names(),
    417        }
    418
    419        CONSTRAINT_PARSERS = {
    420            **parser.Parser.CONSTRAINT_PARSERS,
    421            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    422            "INDEX": lambda self: self._parse_index_constraint(),
    423            "KEY": lambda self: self._parse_index_constraint(),
    424            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    425        }
    426
    427        ALTER_PARSERS = {
    428            **parser.Parser.ALTER_PARSERS,
    429            "MODIFY": lambda self: self._parse_alter_table_alter(),
    430        }
    431
    432        SCHEMA_UNNAMED_CONSTRAINTS = {
    433            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    434            "FULLTEXT",
    435            "INDEX",
    436            "KEY",
    437            "SPATIAL",
    438        }
    439
    440        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    441            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    442            "BLOCK": ("IO",),
    443            "CONTEXT": ("SWITCHES",),
    444            "PAGE": ("FAULTS",),
    445        }
    446
    447        TYPE_TOKENS = {
    448            *parser.Parser.TYPE_TOKENS,
    449            TokenType.SET,
    450        }
    451
    452        ENUM_TYPE_TOKENS = {
    453            *parser.Parser.ENUM_TYPE_TOKENS,
    454            TokenType.SET,
    455        }
    456
    457        LOG_DEFAULTS_TO_LN = True
    458        STRING_ALIASES = True
    459        VALUES_FOLLOWED_BY_PAREN = False
    460        SUPPORTS_PARTITION_SELECTION = True
    461
    462        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    463            this = self._parse_id_var()
    464            if not self._match(TokenType.L_PAREN):
    465                return this
    466
    467            expression = self._parse_number()
    468            self._match_r_paren()
    469            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    470
    471        def _parse_index_constraint(
    472            self, kind: t.Optional[str] = None
    473        ) -> exp.IndexColumnConstraint:
    474            if kind:
    475                self._match_texts(("INDEX", "KEY"))
    476
    477            this = self._parse_id_var(any_token=False)
    478            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    479            expressions = self._parse_wrapped_csv(self._parse_ordered)
    480
    481            options = []
    482            while True:
    483                if self._match_text_seq("KEY_BLOCK_SIZE"):
    484                    self._match(TokenType.EQ)
    485                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    486                elif self._match(TokenType.USING):
    487                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    488                elif self._match_text_seq("WITH", "PARSER"):
    489                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    490                elif self._match(TokenType.COMMENT):
    491                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    492                elif self._match_text_seq("VISIBLE"):
    493                    opt = exp.IndexConstraintOption(visible=True)
    494                elif self._match_text_seq("INVISIBLE"):
    495                    opt = exp.IndexConstraintOption(visible=False)
    496                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    497                    self._match(TokenType.EQ)
    498                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    499                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    500                    self._match(TokenType.EQ)
    501                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    502                else:
    503                    opt = None
    504
    505                if not opt:
    506                    break
    507
    508                options.append(opt)
    509
    510            return self.expression(
    511                exp.IndexColumnConstraint,
    512                this=this,
    513                expressions=expressions,
    514                kind=kind,
    515                index_type=index_type,
    516                options=options,
    517            )
    518
    519        def _parse_show_mysql(
    520            self,
    521            this: str,
    522            target: bool | str = False,
    523            full: t.Optional[bool] = None,
    524            global_: t.Optional[bool] = None,
    525        ) -> exp.Show:
    526            if target:
    527                if isinstance(target, str):
    528                    self._match_text_seq(target)
    529                target_id = self._parse_id_var()
    530            else:
    531                target_id = None
    532
    533            log = self._parse_string() if self._match_text_seq("IN") else None
    534
    535            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    536                position = self._parse_number() if self._match_text_seq("FROM") else None
    537                db = None
    538            else:
    539                position = None
    540                db = None
    541
    542                if self._match(TokenType.FROM):
    543                    db = self._parse_id_var()
    544                elif self._match(TokenType.DOT):
    545                    db = target_id
    546                    target_id = self._parse_id_var()
    547
    548            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    549
    550            like = self._parse_string() if self._match_text_seq("LIKE") else None
    551            where = self._parse_where()
    552
    553            if this == "PROFILE":
    554                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    555                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    556                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    557                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    558            else:
    559                types, query = None, None
    560                offset, limit = self._parse_oldstyle_limit()
    561
    562            mutex = True if self._match_text_seq("MUTEX") else None
    563            mutex = False if self._match_text_seq("STATUS") else mutex
    564
    565            return self.expression(
    566                exp.Show,
    567                this=this,
    568                target=target_id,
    569                full=full,
    570                log=log,
    571                position=position,
    572                db=db,
    573                channel=channel,
    574                like=like,
    575                where=where,
    576                types=types,
    577                query=query,
    578                offset=offset,
    579                limit=limit,
    580                mutex=mutex,
    581                **{"global": global_},  # type: ignore
    582            )
    583
    584        def _parse_oldstyle_limit(
    585            self,
    586        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    587            limit = None
    588            offset = None
    589            if self._match_text_seq("LIMIT"):
    590                parts = self._parse_csv(self._parse_number)
    591                if len(parts) == 1:
    592                    limit = parts[0]
    593                elif len(parts) == 2:
    594                    limit = parts[1]
    595                    offset = parts[0]
    596
    597            return offset, limit
    598
    599        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    600            this = self._parse_string() or self._parse_id_var()
    601            return self.expression(exp.SetItem, this=this, kind=kind)
    602
    603        def _parse_set_item_names(self) -> exp.Expression:
    604            charset = self._parse_string() or self._parse_id_var()
    605            if self._match_text_seq("COLLATE"):
    606                collate = self._parse_string() or self._parse_id_var()
    607            else:
    608                collate = None
    609
    610            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    611
    612        def _parse_type(
    613            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    614        ) -> t.Optional[exp.Expression]:
    615            # mysql binary is special and can work anywhere, even in order by operations
    616            # it operates like a no paren func
    617            if self._match(TokenType.BINARY, advance=False):
    618                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    619
    620                if isinstance(data_type, exp.DataType):
    621                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    622
    623            return super()._parse_type(
    624                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    625            )
    626
    627        def _parse_chr(self) -> t.Optional[exp.Expression]:
    628            expressions = self._parse_csv(self._parse_conjunction)
    629            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
    630
    631            if len(expressions) > 1:
    632                kwargs["expressions"] = expressions[1:]
    633
    634            if self._match(TokenType.USING):
    635                kwargs["charset"] = self._parse_var()
    636
    637            return self.expression(exp.Chr, **kwargs)
    638
    639        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    640            def concat_exprs(
    641                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    642            ) -> exp.Expression:
    643                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    644                    concat_exprs = [
    645                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    646                    ]
    647                    node.set("expressions", concat_exprs)
    648                    return node
    649                if len(exprs) == 1:
    650                    return exprs[0]
    651                return self.expression(exp.Concat, expressions=args, safe=True)
    652
    653            args = self._parse_csv(self._parse_lambda)
    654
    655            if args:
    656                order = args[-1] if isinstance(args[-1], exp.Order) else None
    657
    658                if order:
    659                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    660                    # remove 'expr' from exp.Order and add it back to args
    661                    args[-1] = order.this
    662                    order.set("this", concat_exprs(order.this, args))
    663
    664                this = order or concat_exprs(args[0], args)
    665            else:
    666                this = None
    667
    668            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    669
    670            return self.expression(exp.GroupConcat, this=this, separator=separator)
    671
    672    class Generator(generator.Generator):
    673        LOCKING_READS_SUPPORTED = True
    674        NULL_ORDERING_SUPPORTED = None
    675        JOIN_HINTS = False
    676        TABLE_HINTS = True
    677        DUPLICATE_KEY_UPDATE_WITH_SET = False
    678        QUERY_HINT_SEP = " "
    679        VALUES_AS_TABLE = False
    680        NVL2_SUPPORTED = False
    681        LAST_DAY_SUPPORTS_DATE_PART = False
    682        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
    683        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
    684        JSON_KEY_VALUE_PAIR_SEP = ","
    685        SUPPORTS_TO_NUMBER = False
    686
    687        TRANSFORMS = {
    688            **generator.Generator.TRANSFORMS,
    689            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
    690            exp.CurrentDate: no_paren_current_date_sql,
    691            exp.DateDiff: _remove_ts_or_ds_to_date(
    692                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
    693            ),
    694            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
    695            exp.DateStrToDate: datestrtodate_sql,
    696            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
    697            exp.DateTrunc: _date_trunc_sql,
    698            exp.Day: _remove_ts_or_ds_to_date(),
    699            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
    700            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
    701            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
    702            exp.GroupConcat: lambda self,
    703            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    704            exp.ILike: no_ilike_sql,
    705            exp.JSONExtractScalar: arrow_json_extract_sql,
    706            exp.Max: max_or_greatest,
    707            exp.Min: min_or_least,
    708            exp.Month: _remove_ts_or_ds_to_date(),
    709            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    710            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
    711            exp.ParseJSON: lambda self, e: self.sql(e, "this"),
    712            exp.Pivot: no_pivot_sql,
    713            exp.Select: transforms.preprocess(
    714                [
    715                    transforms.eliminate_distinct_on,
    716                    transforms.eliminate_semi_and_anti_joins,
    717                    transforms.eliminate_qualify,
    718                    transforms.eliminate_full_outer_join,
    719                ]
    720            ),
    721            exp.StrPosition: strposition_to_locate_sql,
    722            exp.StrToDate: _str_to_date_sql,
    723            exp.StrToTime: _str_to_date_sql,
    724            exp.Stuff: rename_func("INSERT"),
    725            exp.TableSample: no_tablesample_sql,
    726            exp.TimeFromParts: rename_func("MAKETIME"),
    727            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
    728            exp.TimestampDiff: lambda self, e: self.func(
    729                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
    730            ),
    731            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
    732            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    733            exp.TimeStrToTime: lambda self, e: self.sql(
    734                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
    735            ),
    736            exp.TimeToStr: _remove_ts_or_ds_to_date(
    737                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
    738            ),
    739            exp.Trim: _trim_sql,
    740            exp.TryCast: no_trycast_sql,
    741            exp.TsOrDsAdd: date_add_sql("ADD"),
    742            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
    743            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    744            exp.UnixToTime: _unix_to_time_sql,
    745            exp.Week: _remove_ts_or_ds_to_date(),
    746            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
    747            exp.Year: _remove_ts_or_ds_to_date(),
    748        }
    749
    750        UNSIGNED_TYPE_MAPPING = {
    751            exp.DataType.Type.UBIGINT: "BIGINT",
    752            exp.DataType.Type.UINT: "INT",
    753            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
    754            exp.DataType.Type.USMALLINT: "SMALLINT",
    755            exp.DataType.Type.UTINYINT: "TINYINT",
    756            exp.DataType.Type.UDECIMAL: "DECIMAL",
    757        }
    758
    759        TIMESTAMP_TYPE_MAPPING = {
    760            exp.DataType.Type.TIMESTAMP: "DATETIME",
    761            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    762            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    763        }
    764
    765        TYPE_MAPPING = {
    766            **generator.Generator.TYPE_MAPPING,
    767            **UNSIGNED_TYPE_MAPPING,
    768            **TIMESTAMP_TYPE_MAPPING,
    769        }
    770
    771        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    772        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    773        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
    774        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    775        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    776        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
    777
    778        PROPERTIES_LOCATION = {
    779            **generator.Generator.PROPERTIES_LOCATION,
    780            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    781            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    782        }
    783
    784        LIMIT_FETCH = "LIMIT"
    785
    786        LIMIT_ONLY_LITERALS = True
    787
    788        CHAR_CAST_MAPPING = dict.fromkeys(
    789            (
    790                exp.DataType.Type.LONGTEXT,
    791                exp.DataType.Type.LONGBLOB,
    792                exp.DataType.Type.MEDIUMBLOB,
    793                exp.DataType.Type.MEDIUMTEXT,
    794                exp.DataType.Type.TEXT,
    795                exp.DataType.Type.TINYBLOB,
    796                exp.DataType.Type.TINYTEXT,
    797                exp.DataType.Type.VARCHAR,
    798            ),
    799            "CHAR",
    800        )
    801        SIGNED_CAST_MAPPING = dict.fromkeys(
    802            (
    803                exp.DataType.Type.BIGINT,
    804                exp.DataType.Type.BOOLEAN,
    805                exp.DataType.Type.INT,
    806                exp.DataType.Type.SMALLINT,
    807                exp.DataType.Type.TINYINT,
    808                exp.DataType.Type.MEDIUMINT,
    809            ),
    810            "SIGNED",
    811        )
    812
    813        # MySQL doesn't support many datatypes in cast.
    814        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
    815        CAST_MAPPING = {
    816            **CHAR_CAST_MAPPING,
    817            **SIGNED_CAST_MAPPING,
    818            exp.DataType.Type.UBIGINT: "UNSIGNED",
    819        }
    820
    821        TIMESTAMP_FUNC_TYPES = {
    822            exp.DataType.Type.TIMESTAMPTZ,
    823            exp.DataType.Type.TIMESTAMPLTZ,
    824        }
    825
    826        def dpipe_sql(self, expression: exp.DPipe) -> str:
    827            return self.func("CONCAT", *expression.flatten())
    828
    829        def extract_sql(self, expression: exp.Extract) -> str:
    830            unit = expression.name
    831            if unit and unit.lower() == "epoch":
    832                return self.func("UNIX_TIMESTAMP", expression.expression)
    833
    834            return super().extract_sql(expression)
    835
    836        def datatype_sql(self, expression: exp.DataType) -> str:
    837            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    838            result = super().datatype_sql(expression)
    839            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    840                result = f"{result} UNSIGNED"
    841            return result
    842
    843        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    844            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    845
    846        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    847            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    848                return self.func("TIMESTAMP", expression.this)
    849
    850            to = self.CAST_MAPPING.get(expression.to.this)
    851
    852            if to:
    853                expression.to.set("this", to)
    854            return super().cast_sql(expression)
    855
    856        def show_sql(self, expression: exp.Show) -> str:
    857            this = f" {expression.name}"
    858            full = " FULL" if expression.args.get("full") else ""
    859            global_ = " GLOBAL" if expression.args.get("global") else ""
    860
    861            target = self.sql(expression, "target")
    862            target = f" {target}" if target else ""
    863            if expression.name in ("COLUMNS", "INDEX"):
    864                target = f" FROM{target}"
    865            elif expression.name == "GRANTS":
    866                target = f" FOR{target}"
    867
    868            db = self._prefixed_sql("FROM", expression, "db")
    869
    870            like = self._prefixed_sql("LIKE", expression, "like")
    871            where = self.sql(expression, "where")
    872
    873            types = self.expressions(expression, key="types")
    874            types = f" {types}" if types else types
    875            query = self._prefixed_sql("FOR QUERY", expression, "query")
    876
    877            if expression.name == "PROFILE":
    878                offset = self._prefixed_sql("OFFSET", expression, "offset")
    879                limit = self._prefixed_sql("LIMIT", expression, "limit")
    880            else:
    881                offset = ""
    882                limit = self._oldstyle_limit_sql(expression)
    883
    884            log = self._prefixed_sql("IN", expression, "log")
    885            position = self._prefixed_sql("FROM", expression, "position")
    886
    887            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    888
    889            if expression.name == "ENGINE":
    890                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    891            else:
    892                mutex_or_status = ""
    893
    894            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    895
    896        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    897            dtype = self.sql(expression, "dtype")
    898            if not dtype:
    899                return super().altercolumn_sql(expression)
    900
    901            this = self.sql(expression, "this")
    902            return f"MODIFY COLUMN {this} {dtype}"
    903
    904        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    905            sql = self.sql(expression, arg)
    906            return f" {prefix} {sql}" if sql else ""
    907
    908        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    909            limit = self.sql(expression, "limit")
    910            offset = self.sql(expression, "offset")
    911            if limit:
    912                limit_offset = f"{offset}, {limit}" if offset else limit
    913                return f" LIMIT {limit_offset}"
    914            return ""
    915
    916        def chr_sql(self, expression: exp.Chr) -> str:
    917            this = self.expressions(sqls=[expression.this] + expression.expressions)
    918            charset = expression.args.get("charset")
    919            using = f" USING {self.sql(charset)}" if charset else ""
    920            return f"CHAR({this}{using})"
    921
    922        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    923            unit = expression.args.get("unit")
    924
    925            # Pick an old-enough date to avoid negative timestamp diffs
    926            start_ts = "'0000-01-01 00:00:00'"
    927
    928            # Source: https://stackoverflow.com/a/32955740
    929            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    930            interval = exp.Interval(this=timestamp_diff, unit=unit)
    931            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    932
    933            return self.sql(dateadd)

TIME_SPECIFIERS = {'f', 's', 'p', 'k', 'r', 'H', 'h', 'I', 'l', 'i', 'T', 'S'}
def date_add_sql( kind: str) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]: View Source

    128def date_add_sql(
    129    kind: str,
    130) -> t.Callable[[generator.Generator, exp.Expression], str]:
    131    def func(self: generator.Generator, expression: exp.Expression) -> str:
    132        return self.func(
    133            f"DATE_{kind}",
    134            expression.this,
    135            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
    136        )
    137
    138    return func

class MySQL(sqlglot.dialects.dialect.Dialect): View Source

    161class MySQL(Dialect):
    162    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
    163    IDENTIFIERS_CAN_START_WITH_DIGIT = True
    164
    165    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
    166    # behavior on Linux systems. For MacOS and Windows systems, one can override this
    167    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
    168    #
    169    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
    170    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
    171
    172    TIME_FORMAT = "'%Y-%m-%d %T'"
    173    DPIPE_IS_STRING_CONCAT = False
    174    SUPPORTS_USER_DEFINED_TYPES = False
    175    SUPPORTS_SEMI_ANTI_JOIN = False
    176    SAFE_DIVISION = True
    177
    178    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
    179    TIME_MAPPING = {
    180        "%M": "%B",
    181        "%c": "%-m",
    182        "%e": "%-d",
    183        "%h": "%I",
    184        "%i": "%M",
    185        "%s": "%S",
    186        "%u": "%W",
    187        "%k": "%-H",
    188        "%l": "%-I",
    189        "%T": "%H:%M:%S",
    190        "%W": "%a",
    191    }
    192
    193    class Tokenizer(tokens.Tokenizer):
    194        QUOTES = ["'", '"']
    195        COMMENTS = ["--", "#", ("/*", "*/")]
    196        IDENTIFIERS = ["`"]
    197        STRING_ESCAPES = ["'", '"', "\\"]
    198        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    199        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    200
    201        KEYWORDS = {
    202            **tokens.Tokenizer.KEYWORDS,
    203            "CHARSET": TokenType.CHARACTER_SET,
    204            "FORCE": TokenType.FORCE,
    205            "IGNORE": TokenType.IGNORE,
    206            "LOCK TABLES": TokenType.COMMAND,
    207            "LONGBLOB": TokenType.LONGBLOB,
    208            "LONGTEXT": TokenType.LONGTEXT,
    209            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    210            "TINYBLOB": TokenType.TINYBLOB,
    211            "TINYTEXT": TokenType.TINYTEXT,
    212            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    213            "MEDIUMINT": TokenType.MEDIUMINT,
    214            "MEMBER OF": TokenType.MEMBER_OF,
    215            "SEPARATOR": TokenType.SEPARATOR,
    216            "START": TokenType.BEGIN,
    217            "SIGNED": TokenType.BIGINT,
    218            "SIGNED INTEGER": TokenType.BIGINT,
    219            "UNLOCK TABLES": TokenType.COMMAND,
    220            "UNSIGNED": TokenType.UBIGINT,
    221            "UNSIGNED INTEGER": TokenType.UBIGINT,
    222            "YEAR": TokenType.YEAR,
    223            "_ARMSCII8": TokenType.INTRODUCER,
    224            "_ASCII": TokenType.INTRODUCER,
    225            "_BIG5": TokenType.INTRODUCER,
    226            "_BINARY": TokenType.INTRODUCER,
    227            "_CP1250": TokenType.INTRODUCER,
    228            "_CP1251": TokenType.INTRODUCER,
    229            "_CP1256": TokenType.INTRODUCER,
    230            "_CP1257": TokenType.INTRODUCER,
    231            "_CP850": TokenType.INTRODUCER,
    232            "_CP852": TokenType.INTRODUCER,
    233            "_CP866": TokenType.INTRODUCER,
    234            "_CP932": TokenType.INTRODUCER,
    235            "_DEC8": TokenType.INTRODUCER,
    236            "_EUCJPMS": TokenType.INTRODUCER,
    237            "_EUCKR": TokenType.INTRODUCER,
    238            "_GB18030": TokenType.INTRODUCER,
    239            "_GB2312": TokenType.INTRODUCER,
    240            "_GBK": TokenType.INTRODUCER,
    241            "_GEOSTD8": TokenType.INTRODUCER,
    242            "_GREEK": TokenType.INTRODUCER,
    243            "_HEBREW": TokenType.INTRODUCER,
    244            "_HP8": TokenType.INTRODUCER,
    245            "_KEYBCS2": TokenType.INTRODUCER,
    246            "_KOI8R": TokenType.INTRODUCER,
    247            "_KOI8U": TokenType.INTRODUCER,
    248            "_LATIN1": TokenType.INTRODUCER,
    249            "_LATIN2": TokenType.INTRODUCER,
    250            "_LATIN5": TokenType.INTRODUCER,
    251            "_LATIN7": TokenType.INTRODUCER,
    252            "_MACCE": TokenType.INTRODUCER,
    253            "_MACROMAN": TokenType.INTRODUCER,
    254            "_SJIS": TokenType.INTRODUCER,
    255            "_SWE7": TokenType.INTRODUCER,
    256            "_TIS620": TokenType.INTRODUCER,
    257            "_UCS2": TokenType.INTRODUCER,
    258            "_UJIS": TokenType.INTRODUCER,
    259            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    260            "_UTF8": TokenType.INTRODUCER,
    261            "_UTF16": TokenType.INTRODUCER,
    262            "_UTF16LE": TokenType.INTRODUCER,
    263            "_UTF32": TokenType.INTRODUCER,
    264            "_UTF8MB3": TokenType.INTRODUCER,
    265            "_UTF8MB4": TokenType.INTRODUCER,
    266            "@@": TokenType.SESSION_PARAMETER,
    267        }
    268
    269        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
    270
    271    class Parser(parser.Parser):
    272        FUNC_TOKENS = {
    273            *parser.Parser.FUNC_TOKENS,
    274            TokenType.DATABASE,
    275            TokenType.SCHEMA,
    276            TokenType.VALUES,
    277        }
    278
    279        CONJUNCTION = {
    280            **parser.Parser.CONJUNCTION,
    281            TokenType.DAMP: exp.And,
    282            TokenType.XOR: exp.Xor,
    283            TokenType.DPIPE: exp.Or,
    284        }
    285
    286        TABLE_ALIAS_TOKENS = (
    287            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    288        )
    289
    290        RANGE_PARSERS = {
    291            **parser.Parser.RANGE_PARSERS,
    292            TokenType.MEMBER_OF: lambda self, this: self.expression(
    293                exp.JSONArrayContains,
    294                this=this,
    295                expression=self._parse_wrapped(self._parse_expression),
    296            ),
    297        }
    298
    299        FUNCTIONS = {
    300            **parser.Parser.FUNCTIONS,
    301            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    302            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    303            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    304            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    305            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    306            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    307            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    308            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    309            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    310            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    311            "ISNULL": isnull_to_is_null,
    312            "LOCATE": locate_to_strposition,
    313            "MAKETIME": exp.TimeFromParts.from_arg_list,
    314            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    315            "MONTHNAME": lambda args: exp.TimeToStr(
    316                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    317                format=exp.Literal.string("%B"),
    318            ),
    319            "STR_TO_DATE": _str_to_date,
    320            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    321            "TO_DAYS": lambda args: exp.paren(
    322                exp.DateDiff(
    323                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    324                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    325                    unit=exp.var("DAY"),
    326                )
    327                + 1
    328            ),
    329            "WEEK": lambda args: exp.Week(
    330                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    331            ),
    332            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    333            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    334        }
    335
    336        FUNCTION_PARSERS = {
    337            **parser.Parser.FUNCTION_PARSERS,
    338            "CHAR": lambda self: self._parse_chr(),
    339            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    340            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    341            "VALUES": lambda self: self.expression(
    342                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    343            ),
    344        }
    345
    346        STATEMENT_PARSERS = {
    347            **parser.Parser.STATEMENT_PARSERS,
    348            TokenType.SHOW: lambda self: self._parse_show(),
    349        }
    350
    351        SHOW_PARSERS = {
    352            "BINARY LOGS": _show_parser("BINARY LOGS"),
    353            "MASTER LOGS": _show_parser("BINARY LOGS"),
    354            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    355            "CHARACTER SET": _show_parser("CHARACTER SET"),
    356            "CHARSET": _show_parser("CHARACTER SET"),
    357            "COLLATION": _show_parser("COLLATION"),
    358            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    359            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    360            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    361            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    362            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    363            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    364            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    365            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    366            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    367            "DATABASES": _show_parser("DATABASES"),
    368            "SCHEMAS": _show_parser("DATABASES"),
    369            "ENGINE": _show_parser("ENGINE", target=True),
    370            "STORAGE ENGINES": _show_parser("ENGINES"),
    371            "ENGINES": _show_parser("ENGINES"),
    372            "ERRORS": _show_parser("ERRORS"),
    373            "EVENTS": _show_parser("EVENTS"),
    374            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    375            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    376            "GRANTS": _show_parser("GRANTS", target="FOR"),
    377            "INDEX": _show_parser("INDEX", target="FROM"),
    378            "MASTER STATUS": _show_parser("MASTER STATUS"),
    379            "OPEN TABLES": _show_parser("OPEN TABLES"),
    380            "PLUGINS": _show_parser("PLUGINS"),
    381            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    382            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    383            "PRIVILEGES": _show_parser("PRIVILEGES"),
    384            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    385            "PROCESSLIST": _show_parser("PROCESSLIST"),
    386            "PROFILE": _show_parser("PROFILE"),
    387            "PROFILES": _show_parser("PROFILES"),
    388            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    389            "REPLICAS": _show_parser("REPLICAS"),
    390            "SLAVE HOSTS": _show_parser("REPLICAS"),
    391            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    392            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    393            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    394            "SESSION STATUS": _show_parser("STATUS"),
    395            "STATUS": _show_parser("STATUS"),
    396            "TABLE STATUS": _show_parser("TABLE STATUS"),
    397            "FULL TABLES": _show_parser("TABLES", full=True),
    398            "TABLES": _show_parser("TABLES"),
    399            "TRIGGERS": _show_parser("TRIGGERS"),
    400            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    401            "SESSION VARIABLES": _show_parser("VARIABLES"),
    402            "VARIABLES": _show_parser("VARIABLES"),
    403            "WARNINGS": _show_parser("WARNINGS"),
    404        }
    405
    406        PROPERTY_PARSERS = {
    407            **parser.Parser.PROPERTY_PARSERS,
    408            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    409        }
    410
    411        SET_PARSERS = {
    412            **parser.Parser.SET_PARSERS,
    413            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    414            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    415            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    416            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    417            "NAMES": lambda self: self._parse_set_item_names(),
    418        }
    419
    420        CONSTRAINT_PARSERS = {
    421            **parser.Parser.CONSTRAINT_PARSERS,
    422            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    423            "INDEX": lambda self: self._parse_index_constraint(),
    424            "KEY": lambda self: self._parse_index_constraint(),
    425            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    426        }
    427
    428        ALTER_PARSERS = {
    429            **parser.Parser.ALTER_PARSERS,
    430            "MODIFY": lambda self: self._parse_alter_table_alter(),
    431        }
    432
    433        SCHEMA_UNNAMED_CONSTRAINTS = {
    434            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    435            "FULLTEXT",
    436            "INDEX",
    437            "KEY",
    438            "SPATIAL",
    439        }
    440
    441        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    442            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    443            "BLOCK": ("IO",),
    444            "CONTEXT": ("SWITCHES",),
    445            "PAGE": ("FAULTS",),
    446        }
    447
    448        TYPE_TOKENS = {
    449            *parser.Parser.TYPE_TOKENS,
    450            TokenType.SET,
    451        }
    452
    453        ENUM_TYPE_TOKENS = {
    454            *parser.Parser.ENUM_TYPE_TOKENS,
    455            TokenType.SET,
    456        }
    457
    458        LOG_DEFAULTS_TO_LN = True
    459        STRING_ALIASES = True
    460        VALUES_FOLLOWED_BY_PAREN = False
    461        SUPPORTS_PARTITION_SELECTION = True
    462
    463        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    464            this = self._parse_id_var()
    465            if not self._match(TokenType.L_PAREN):
    466                return this
    467
    468            expression = self._parse_number()
    469            self._match_r_paren()
    470            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    471
    472        def _parse_index_constraint(
    473            self, kind: t.Optional[str] = None
    474        ) -> exp.IndexColumnConstraint:
    475            if kind:
    476                self._match_texts(("INDEX", "KEY"))
    477
    478            this = self._parse_id_var(any_token=False)
    479            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    480            expressions = self._parse_wrapped_csv(self._parse_ordered)
    481
    482            options = []
    483            while True:
    484                if self._match_text_seq("KEY_BLOCK_SIZE"):
    485                    self._match(TokenType.EQ)
    486                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    487                elif self._match(TokenType.USING):
    488                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    489                elif self._match_text_seq("WITH", "PARSER"):
    490                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    491                elif self._match(TokenType.COMMENT):
    492                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    493                elif self._match_text_seq("VISIBLE"):
    494                    opt = exp.IndexConstraintOption(visible=True)
    495                elif self._match_text_seq("INVISIBLE"):
    496                    opt = exp.IndexConstraintOption(visible=False)
    497                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    498                    self._match(TokenType.EQ)
    499                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    500                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    501                    self._match(TokenType.EQ)
    502                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    503                else:
    504                    opt = None
    505
    506                if not opt:
    507                    break
    508
    509                options.append(opt)
    510
    511            return self.expression(
    512                exp.IndexColumnConstraint,
    513                this=this,
    514                expressions=expressions,
    515                kind=kind,
    516                index_type=index_type,
    517                options=options,
    518            )
    519
    520        def _parse_show_mysql(
    521            self,
    522            this: str,
    523            target: bool | str = False,
    524            full: t.Optional[bool] = None,
    525            global_: t.Optional[bool] = None,
    526        ) -> exp.Show:
    527            if target:
    528                if isinstance(target, str):
    529                    self._match_text_seq(target)
    530                target_id = self._parse_id_var()
    531            else:
    532                target_id = None
    533
    534            log = self._parse_string() if self._match_text_seq("IN") else None
    535
    536            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    537                position = self._parse_number() if self._match_text_seq("FROM") else None
    538                db = None
    539            else:
    540                position = None
    541                db = None
    542
    543                if self._match(TokenType.FROM):
    544                    db = self._parse_id_var()
    545                elif self._match(TokenType.DOT):
    546                    db = target_id
    547                    target_id = self._parse_id_var()
    548
    549            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    550
    551            like = self._parse_string() if self._match_text_seq("LIKE") else None
    552            where = self._parse_where()
    553
    554            if this == "PROFILE":
    555                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    556                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    557                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    558                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    559            else:
    560                types, query = None, None
    561                offset, limit = self._parse_oldstyle_limit()
    562
    563            mutex = True if self._match_text_seq("MUTEX") else None
    564            mutex = False if self._match_text_seq("STATUS") else mutex
    565
    566            return self.expression(
    567                exp.Show,
    568                this=this,
    569                target=target_id,
    570                full=full,
    571                log=log,
    572                position=position,
    573                db=db,
    574                channel=channel,
    575                like=like,
    576                where=where,
    577                types=types,
    578                query=query,
    579                offset=offset,
    580                limit=limit,
    581                mutex=mutex,
    582                **{"global": global_},  # type: ignore
    583            )
    584
    585        def _parse_oldstyle_limit(
    586            self,
    587        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    588            limit = None
    589            offset = None
    590            if self._match_text_seq("LIMIT"):
    591                parts = self._parse_csv(self._parse_number)
    592                if len(parts) == 1:
    593                    limit = parts[0]
    594                elif len(parts) == 2:
    595                    limit = parts[1]
    596                    offset = parts[0]
    597
    598            return offset, limit
    599
    600        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    601            this = self._parse_string() or self._parse_id_var()
    602            return self.expression(exp.SetItem, this=this, kind=kind)
    603
    604        def _parse_set_item_names(self) -> exp.Expression:
    605            charset = self._parse_string() or self._parse_id_var()
    606            if self._match_text_seq("COLLATE"):
    607                collate = self._parse_string() or self._parse_id_var()
    608            else:
    609                collate = None
    610
    611            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    612
    613        def _parse_type(
    614            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    615        ) -> t.Optional[exp.Expression]:
    616            # mysql binary is special and can work anywhere, even in order by operations
    617            # it operates like a no paren func
    618            if self._match(TokenType.BINARY, advance=False):
    619                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    620
    621                if isinstance(data_type, exp.DataType):
    622                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    623
    624            return super()._parse_type(
    625                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    626            )
    627
    628        def _parse_chr(self) -> t.Optional[exp.Expression]:
    629            expressions = self._parse_csv(self._parse_conjunction)
    630            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
    631
    632            if len(expressions) > 1:
    633                kwargs["expressions"] = expressions[1:]
    634
    635            if self._match(TokenType.USING):
    636                kwargs["charset"] = self._parse_var()
    637
    638            return self.expression(exp.Chr, **kwargs)
    639
    640        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    641            def concat_exprs(
    642                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    643            ) -> exp.Expression:
    644                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    645                    concat_exprs = [
    646                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    647                    ]
    648                    node.set("expressions", concat_exprs)
    649                    return node
    650                if len(exprs) == 1:
    651                    return exprs[0]
    652                return self.expression(exp.Concat, expressions=args, safe=True)
    653
    654            args = self._parse_csv(self._parse_lambda)
    655
    656            if args:
    657                order = args[-1] if isinstance(args[-1], exp.Order) else None
    658
    659                if order:
    660                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    661                    # remove 'expr' from exp.Order and add it back to args
    662                    args[-1] = order.this
    663                    order.set("this", concat_exprs(order.this, args))
    664
    665                this = order or concat_exprs(args[0], args)
    666            else:
    667                this = None
    668
    669            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    670
    671            return self.expression(exp.GroupConcat, this=this, separator=separator)
    672
    673    class Generator(generator.Generator):
    674        LOCKING_READS_SUPPORTED = True
    675        NULL_ORDERING_SUPPORTED = None
    676        JOIN_HINTS = False
    677        TABLE_HINTS = True
    678        DUPLICATE_KEY_UPDATE_WITH_SET = False
    679        QUERY_HINT_SEP = " "
    680        VALUES_AS_TABLE = False
    681        NVL2_SUPPORTED = False
    682        LAST_DAY_SUPPORTS_DATE_PART = False
    683        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
    684        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
    685        JSON_KEY_VALUE_PAIR_SEP = ","
    686        SUPPORTS_TO_NUMBER = False
    687
    688        TRANSFORMS = {
    689            **generator.Generator.TRANSFORMS,
    690            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
    691            exp.CurrentDate: no_paren_current_date_sql,
    692            exp.DateDiff: _remove_ts_or_ds_to_date(
    693                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
    694            ),
    695            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
    696            exp.DateStrToDate: datestrtodate_sql,
    697            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
    698            exp.DateTrunc: _date_trunc_sql,
    699            exp.Day: _remove_ts_or_ds_to_date(),
    700            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
    701            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
    702            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
    703            exp.GroupConcat: lambda self,
    704            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    705            exp.ILike: no_ilike_sql,
    706            exp.JSONExtractScalar: arrow_json_extract_sql,
    707            exp.Max: max_or_greatest,
    708            exp.Min: min_or_least,
    709            exp.Month: _remove_ts_or_ds_to_date(),
    710            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    711            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
    712            exp.ParseJSON: lambda self, e: self.sql(e, "this"),
    713            exp.Pivot: no_pivot_sql,
    714            exp.Select: transforms.preprocess(
    715                [
    716                    transforms.eliminate_distinct_on,
    717                    transforms.eliminate_semi_and_anti_joins,
    718                    transforms.eliminate_qualify,
    719                    transforms.eliminate_full_outer_join,
    720                ]
    721            ),
    722            exp.StrPosition: strposition_to_locate_sql,
    723            exp.StrToDate: _str_to_date_sql,
    724            exp.StrToTime: _str_to_date_sql,
    725            exp.Stuff: rename_func("INSERT"),
    726            exp.TableSample: no_tablesample_sql,
    727            exp.TimeFromParts: rename_func("MAKETIME"),
    728            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
    729            exp.TimestampDiff: lambda self, e: self.func(
    730                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
    731            ),
    732            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
    733            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    734            exp.TimeStrToTime: lambda self, e: self.sql(
    735                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
    736            ),
    737            exp.TimeToStr: _remove_ts_or_ds_to_date(
    738                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
    739            ),
    740            exp.Trim: _trim_sql,
    741            exp.TryCast: no_trycast_sql,
    742            exp.TsOrDsAdd: date_add_sql("ADD"),
    743            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
    744            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    745            exp.UnixToTime: _unix_to_time_sql,
    746            exp.Week: _remove_ts_or_ds_to_date(),
    747            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
    748            exp.Year: _remove_ts_or_ds_to_date(),
    749        }
    750
    751        UNSIGNED_TYPE_MAPPING = {
    752            exp.DataType.Type.UBIGINT: "BIGINT",
    753            exp.DataType.Type.UINT: "INT",
    754            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
    755            exp.DataType.Type.USMALLINT: "SMALLINT",
    756            exp.DataType.Type.UTINYINT: "TINYINT",
    757            exp.DataType.Type.UDECIMAL: "DECIMAL",
    758        }
    759
    760        TIMESTAMP_TYPE_MAPPING = {
    761            exp.DataType.Type.TIMESTAMP: "DATETIME",
    762            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    763            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    764        }
    765
    766        TYPE_MAPPING = {
    767            **generator.Generator.TYPE_MAPPING,
    768            **UNSIGNED_TYPE_MAPPING,
    769            **TIMESTAMP_TYPE_MAPPING,
    770        }
    771
    772        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    773        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    774        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
    775        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    776        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    777        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
    778
    779        PROPERTIES_LOCATION = {
    780            **generator.Generator.PROPERTIES_LOCATION,
    781            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    782            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    783        }
    784
    785        LIMIT_FETCH = "LIMIT"
    786
    787        LIMIT_ONLY_LITERALS = True
    788
    789        CHAR_CAST_MAPPING = dict.fromkeys(
    790            (
    791                exp.DataType.Type.LONGTEXT,
    792                exp.DataType.Type.LONGBLOB,
    793                exp.DataType.Type.MEDIUMBLOB,
    794                exp.DataType.Type.MEDIUMTEXT,
    795                exp.DataType.Type.TEXT,
    796                exp.DataType.Type.TINYBLOB,
    797                exp.DataType.Type.TINYTEXT,
    798                exp.DataType.Type.VARCHAR,
    799            ),
    800            "CHAR",
    801        )
    802        SIGNED_CAST_MAPPING = dict.fromkeys(
    803            (
    804                exp.DataType.Type.BIGINT,
    805                exp.DataType.Type.BOOLEAN,
    806                exp.DataType.Type.INT,
    807                exp.DataType.Type.SMALLINT,
    808                exp.DataType.Type.TINYINT,
    809                exp.DataType.Type.MEDIUMINT,
    810            ),
    811            "SIGNED",
    812        )
    813
    814        # MySQL doesn't support many datatypes in cast.
    815        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
    816        CAST_MAPPING = {
    817            **CHAR_CAST_MAPPING,
    818            **SIGNED_CAST_MAPPING,
    819            exp.DataType.Type.UBIGINT: "UNSIGNED",
    820        }
    821
    822        TIMESTAMP_FUNC_TYPES = {
    823            exp.DataType.Type.TIMESTAMPTZ,
    824            exp.DataType.Type.TIMESTAMPLTZ,
    825        }
    826
    827        def dpipe_sql(self, expression: exp.DPipe) -> str:
    828            return self.func("CONCAT", *expression.flatten())
    829
    830        def extract_sql(self, expression: exp.Extract) -> str:
    831            unit = expression.name
    832            if unit and unit.lower() == "epoch":
    833                return self.func("UNIX_TIMESTAMP", expression.expression)
    834
    835            return super().extract_sql(expression)
    836
    837        def datatype_sql(self, expression: exp.DataType) -> str:
    838            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    839            result = super().datatype_sql(expression)
    840            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    841                result = f"{result} UNSIGNED"
    842            return result
    843
    844        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    845            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    846
    847        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    848            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    849                return self.func("TIMESTAMP", expression.this)
    850
    851            to = self.CAST_MAPPING.get(expression.to.this)
    852
    853            if to:
    854                expression.to.set("this", to)
    855            return super().cast_sql(expression)
    856
    857        def show_sql(self, expression: exp.Show) -> str:
    858            this = f" {expression.name}"
    859            full = " FULL" if expression.args.get("full") else ""
    860            global_ = " GLOBAL" if expression.args.get("global") else ""
    861
    862            target = self.sql(expression, "target")
    863            target = f" {target}" if target else ""
    864            if expression.name in ("COLUMNS", "INDEX"):
    865                target = f" FROM{target}"
    866            elif expression.name == "GRANTS":
    867                target = f" FOR{target}"
    868
    869            db = self._prefixed_sql("FROM", expression, "db")
    870
    871            like = self._prefixed_sql("LIKE", expression, "like")
    872            where = self.sql(expression, "where")
    873
    874            types = self.expressions(expression, key="types")
    875            types = f" {types}" if types else types
    876            query = self._prefixed_sql("FOR QUERY", expression, "query")
    877
    878            if expression.name == "PROFILE":
    879                offset = self._prefixed_sql("OFFSET", expression, "offset")
    880                limit = self._prefixed_sql("LIMIT", expression, "limit")
    881            else:
    882                offset = ""
    883                limit = self._oldstyle_limit_sql(expression)
    884
    885            log = self._prefixed_sql("IN", expression, "log")
    886            position = self._prefixed_sql("FROM", expression, "position")
    887
    888            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    889
    890            if expression.name == "ENGINE":
    891                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    892            else:
    893                mutex_or_status = ""
    894
    895            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    896
    897        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    898            dtype = self.sql(expression, "dtype")
    899            if not dtype:
    900                return super().altercolumn_sql(expression)
    901
    902            this = self.sql(expression, "this")
    903            return f"MODIFY COLUMN {this} {dtype}"
    904
    905        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    906            sql = self.sql(expression, arg)
    907            return f" {prefix} {sql}" if sql else ""
    908
    909        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    910            limit = self.sql(expression, "limit")
    911            offset = self.sql(expression, "offset")
    912            if limit:
    913                limit_offset = f"{offset}, {limit}" if offset else limit
    914                return f" LIMIT {limit_offset}"
    915            return ""
    916
    917        def chr_sql(self, expression: exp.Chr) -> str:
    918            this = self.expressions(sqls=[expression.this] + expression.expressions)
    919            charset = expression.args.get("charset")
    920            using = f" USING {self.sql(charset)}" if charset else ""
    921            return f"CHAR({this}{using})"
    922
    923        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    924            unit = expression.args.get("unit")
    925
    926            # Pick an old-enough date to avoid negative timestamp diffs
    927            start_ts = "'0000-01-01 00:00:00'"
    928
    929            # Source: https://stackoverflow.com/a/32955740
    930            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    931            interval = exp.Interval(this=timestamp_diff, unit=unit)
    932            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    933
    934            return self.sql(dateadd)

IDENTIFIERS_CAN_START_WITH_DIGIT = True

Whether an unquoted identifier can start with a digit.

NORMALIZATION_STRATEGY = <NormalizationStrategy.CASE_SENSITIVE: 'CASE_SENSITIVE'>

Specifies the strategy according to which identifiers should be normalized.

TIME_FORMAT = "'%Y-%m-%d %T'"
DPIPE_IS_STRING_CONCAT = False

Whether the DPIPE token (`||`) is a string concatenation operator.

SUPPORTS_USER_DEFINED_TYPES = False

Whether user-defined data types are supported.

SUPPORTS_SEMI_ANTI_JOIN = False

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

SAFE_DIVISION = True

Whether division by zero throws an error (`False`) or returns NULL (`True`).

TIME_MAPPING: Dict[str, str] = {'%M': '%B', '%c': '%-m', '%e': '%-d', '%h': '%I', '%i': '%M', '%s': '%S', '%u': '%W', '%k': '%-H', '%l': '%-I', '%T': '%H:%M:%S', '%W': '%a'}

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

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 'MySQL.Tokenizer'>
parser_class = <class 'MySQL.Parser'>
generator_class = <class 'MySQL.Generator'>
TIME_TRIE: Dict = {'%': {'M': {0: True}, 'c': {0: True}, 'e': {0: True}, 'h': {0: True}, 'i': {0: True}, 's': {0: True}, 'u': {0: True}, 'k': {0: True}, 'l': {0: True}, 'T': {0: True}, 'W': {0: True}}}
FORMAT_TRIE: Dict = {'%': {'M': {0: True}, 'c': {0: True}, 'e': {0: True}, 'h': {0: True}, 'i': {0: True}, 's': {0: True}, 'u': {0: True}, 'k': {0: True}, 'l': {0: True}, 'T': {0: True}, 'W': {0: True}}}
INVERSE_TIME_MAPPING: Dict[str, str] = {'%B': '%M', '%-m': '%c', '%-d': '%e', '%I': '%h', '%M': '%i', '%S': '%s', '%W': '%u', '%-H': '%k', '%-I': '%l', '%H:%M:%S': '%T', '%a': '%W'}
INVERSE_TIME_TRIE: Dict = {'%': {'B': {0: True}, '-': {'m': {0: True}, 'd': {0: True}, 'H': {0: True}, 'I': {0: True}}, 'I': {0: True}, 'M': {0: True}, 'S': {0: True}, 'W': {0: True}, 'H': {':': {'%': {'M': {':': {'%': {'S': {0: True}}}}}}}, 'a': {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] = "b'"
BIT_END: Optional[str] = "'"
HEX_START: Optional[str] = "x'"
HEX_END: Optional[str] = "'"
BYTE_START: Optional[str] = None
BYTE_END: Optional[str] = None
UNICODE_START: Optional[str] = None
UNICODE_END: Optional[str] = None

##### Inherited Members

sqlglot.dialects.dialect.Dialect
  Dialect
  INDEX_OFFSET
  WEEK_OFFSET
  UNNEST_COLUMN_ONLY
  ALIAS_POST_TABLESAMPLE
  TABLESAMPLE_SIZE_IS_PERCENT
  STRICT_STRING_CONCAT
  NORMALIZE_FUNCTIONS
  LOG_BASE_FIRST
  NULL_ORDERING
  TYPED_DIVISION
  CONCAT_COALESCE
  HEX_LOWERCASE
  DATE_FORMAT
  DATEINT_FORMAT
  FORMAT_MAPPING
  PSEUDOCOLUMNS
  PREFER_CTE_ALIAS_COLUMN
  COPY_PARAMS_ARE_CSV
  get_or_raise
  format_time
  normalize_identifier
  case_sensitive
  can_identify
  quote_identifier
  to_json_path
  parse
  parse_into
  generate
  transpile
  tokenize
  tokenizer
  parser
  generator

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

    193    class Tokenizer(tokens.Tokenizer):
    194        QUOTES = ["'", '"']
    195        COMMENTS = ["--", "#", ("/*", "*/")]
    196        IDENTIFIERS = ["`"]
    197        STRING_ESCAPES = ["'", '"', "\\"]
    198        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    199        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    200
    201        KEYWORDS = {
    202            **tokens.Tokenizer.KEYWORDS,
    203            "CHARSET": TokenType.CHARACTER_SET,
    204            "FORCE": TokenType.FORCE,
    205            "IGNORE": TokenType.IGNORE,
    206            "LOCK TABLES": TokenType.COMMAND,
    207            "LONGBLOB": TokenType.LONGBLOB,
    208            "LONGTEXT": TokenType.LONGTEXT,
    209            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    210            "TINYBLOB": TokenType.TINYBLOB,
    211            "TINYTEXT": TokenType.TINYTEXT,
    212            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    213            "MEDIUMINT": TokenType.MEDIUMINT,
    214            "MEMBER OF": TokenType.MEMBER_OF,
    215            "SEPARATOR": TokenType.SEPARATOR,
    216            "START": TokenType.BEGIN,
    217            "SIGNED": TokenType.BIGINT,
    218            "SIGNED INTEGER": TokenType.BIGINT,
    219            "UNLOCK TABLES": TokenType.COMMAND,
    220            "UNSIGNED": TokenType.UBIGINT,
    221            "UNSIGNED INTEGER": TokenType.UBIGINT,
    222            "YEAR": TokenType.YEAR,
    223            "_ARMSCII8": TokenType.INTRODUCER,
    224            "_ASCII": TokenType.INTRODUCER,
    225            "_BIG5": TokenType.INTRODUCER,
    226            "_BINARY": TokenType.INTRODUCER,
    227            "_CP1250": TokenType.INTRODUCER,
    228            "_CP1251": TokenType.INTRODUCER,
    229            "_CP1256": TokenType.INTRODUCER,
    230            "_CP1257": TokenType.INTRODUCER,
    231            "_CP850": TokenType.INTRODUCER,
    232            "_CP852": TokenType.INTRODUCER,
    233            "_CP866": TokenType.INTRODUCER,
    234            "_CP932": TokenType.INTRODUCER,
    235            "_DEC8": TokenType.INTRODUCER,
    236            "_EUCJPMS": TokenType.INTRODUCER,
    237            "_EUCKR": TokenType.INTRODUCER,
    238            "_GB18030": TokenType.INTRODUCER,
    239            "_GB2312": TokenType.INTRODUCER,
    240            "_GBK": TokenType.INTRODUCER,
    241            "_GEOSTD8": TokenType.INTRODUCER,
    242            "_GREEK": TokenType.INTRODUCER,
    243            "_HEBREW": TokenType.INTRODUCER,
    244            "_HP8": TokenType.INTRODUCER,
    245            "_KEYBCS2": TokenType.INTRODUCER,
    246            "_KOI8R": TokenType.INTRODUCER,
    247            "_KOI8U": TokenType.INTRODUCER,
    248            "_LATIN1": TokenType.INTRODUCER,
    249            "_LATIN2": TokenType.INTRODUCER,
    250            "_LATIN5": TokenType.INTRODUCER,
    251            "_LATIN7": TokenType.INTRODUCER,
    252            "_MACCE": TokenType.INTRODUCER,
    253            "_MACROMAN": TokenType.INTRODUCER,
    254            "_SJIS": TokenType.INTRODUCER,
    255            "_SWE7": TokenType.INTRODUCER,
    256            "_TIS620": TokenType.INTRODUCER,
    257            "_UCS2": TokenType.INTRODUCER,
    258            "_UJIS": TokenType.INTRODUCER,
    259            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    260            "_UTF8": TokenType.INTRODUCER,
    261            "_UTF16": TokenType.INTRODUCER,
    262            "_UTF16LE": TokenType.INTRODUCER,
    263            "_UTF32": TokenType.INTRODUCER,
    264            "_UTF8MB3": TokenType.INTRODUCER,
    265            "_UTF8MB4": TokenType.INTRODUCER,
    266            "@@": TokenType.SESSION_PARAMETER,
    267        }
    268
    269        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}

QUOTES = ["'", '"']
COMMENTS = ['--', '#', ('/*', '*/')]
IDENTIFIERS = ['`']
STRING_ESCAPES = ["'", '"', '\\']
BIT_STRINGS = [("b'", "'"), ("B'", "'"), ('0b', '')]
HEX_STRINGS = [("x'", "'"), ("X'", "'"), ('0x', '')]
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.HINT: 'HINT'>, '==': <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.BEGIN: 'BEGIN'>, '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'>, 'DIV': <TokenType.DIV: 'DIV'>, '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'>, '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'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, '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'>, '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'>, '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.TIMESTAMP: 'TIMESTAMP'>, '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.DATETIME: 'DATETIME'>, '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'>, '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'>, 'CHARSET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'FORCE': <TokenType.FORCE: 'FORCE'>, 'IGNORE': <TokenType.IGNORE: 'IGNORE'>, 'LOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'MEMBER OF': <TokenType.MEMBER_OF: 'MEMBER_OF'>, 'SEPARATOR': <TokenType.SEPARATOR: 'SEPARATOR'>, 'START': <TokenType.BEGIN: 'BEGIN'>, 'SIGNED': <TokenType.BIGINT: 'BIGINT'>, 'SIGNED INTEGER': <TokenType.BIGINT: 'BIGINT'>, 'UNLOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'UNSIGNED': <TokenType.UBIGINT: 'UBIGINT'>, 'UNSIGNED INTEGER': <TokenType.UBIGINT: 'UBIGINT'>, 'YEAR': <TokenType.YEAR: 'YEAR'>, '_ARMSCII8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_ASCII': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BIG5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BINARY': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1250': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1251': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1256': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1257': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP850': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP852': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP866': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP932': <TokenType.INTRODUCER: 'INTRODUCER'>, '_DEC8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCJPMS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCKR': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB18030': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB2312': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GBK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GEOSTD8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GREEK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HEBREW': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HP8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KEYBCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8R': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8U': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN1': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACCE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACROMAN': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SWE7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_TIS620': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16LE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF32': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB3': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB4': <TokenType.INTRODUCER: 'INTRODUCER'>, '@@': <TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>}
COMMANDS = {<TokenType.REPLACE: 'REPLACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.FETCH: 'FETCH'>, <TokenType.COMMAND: 'COMMAND'>}

##### Inherited Members

sqlglot.tokens.Tokenizer
  Tokenizer
  SINGLE_TOKENS
  BYTE_STRINGS
  RAW_STRINGS
  HEREDOC_STRINGS
  UNICODE_STRINGS
  IDENTIFIER_ESCAPES
  VAR_SINGLE_TOKENS
  HEREDOC_TAG_IS_IDENTIFIER
  HEREDOC_STRING_ALTERNATIVE
  WHITE_SPACE
  COMMAND_PREFIX_TOKENS
  NUMERIC_LITERALS
  dialect
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

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

    271    class Parser(parser.Parser):
    272        FUNC_TOKENS = {
    273            *parser.Parser.FUNC_TOKENS,
    274            TokenType.DATABASE,
    275            TokenType.SCHEMA,
    276            TokenType.VALUES,
    277        }
    278
    279        CONJUNCTION = {
    280            **parser.Parser.CONJUNCTION,
    281            TokenType.DAMP: exp.And,
    282            TokenType.XOR: exp.Xor,
    283            TokenType.DPIPE: exp.Or,
    284        }
    285
    286        TABLE_ALIAS_TOKENS = (
    287            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    288        )
    289
    290        RANGE_PARSERS = {
    291            **parser.Parser.RANGE_PARSERS,
    292            TokenType.MEMBER_OF: lambda self, this: self.expression(
    293                exp.JSONArrayContains,
    294                this=this,
    295                expression=self._parse_wrapped(self._parse_expression),
    296            ),
    297        }
    298
    299        FUNCTIONS = {
    300            **parser.Parser.FUNCTIONS,
    301            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    302            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    303            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    304            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    305            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    306            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    307            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    308            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    309            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    310            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    311            "ISNULL": isnull_to_is_null,
    312            "LOCATE": locate_to_strposition,
    313            "MAKETIME": exp.TimeFromParts.from_arg_list,
    314            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    315            "MONTHNAME": lambda args: exp.TimeToStr(
    316                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    317                format=exp.Literal.string("%B"),
    318            ),
    319            "STR_TO_DATE": _str_to_date,
    320            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    321            "TO_DAYS": lambda args: exp.paren(
    322                exp.DateDiff(
    323                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    324                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    325                    unit=exp.var("DAY"),
    326                )
    327                + 1
    328            ),
    329            "WEEK": lambda args: exp.Week(
    330                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    331            ),
    332            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    333            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    334        }
    335
    336        FUNCTION_PARSERS = {
    337            **parser.Parser.FUNCTION_PARSERS,
    338            "CHAR": lambda self: self._parse_chr(),
    339            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    340            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    341            "VALUES": lambda self: self.expression(
    342                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    343            ),
    344        }
    345
    346        STATEMENT_PARSERS = {
    347            **parser.Parser.STATEMENT_PARSERS,
    348            TokenType.SHOW: lambda self: self._parse_show(),
    349        }
    350
    351        SHOW_PARSERS = {
    352            "BINARY LOGS": _show_parser("BINARY LOGS"),
    353            "MASTER LOGS": _show_parser("BINARY LOGS"),
    354            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    355            "CHARACTER SET": _show_parser("CHARACTER SET"),
    356            "CHARSET": _show_parser("CHARACTER SET"),
    357            "COLLATION": _show_parser("COLLATION"),
    358            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    359            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    360            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    361            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    362            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    363            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    364            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    365            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    366            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    367            "DATABASES": _show_parser("DATABASES"),
    368            "SCHEMAS": _show_parser("DATABASES"),
    369            "ENGINE": _show_parser("ENGINE", target=True),
    370            "STORAGE ENGINES": _show_parser("ENGINES"),
    371            "ENGINES": _show_parser("ENGINES"),
    372            "ERRORS": _show_parser("ERRORS"),
    373            "EVENTS": _show_parser("EVENTS"),
    374            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    375            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    376            "GRANTS": _show_parser("GRANTS", target="FOR"),
    377            "INDEX": _show_parser("INDEX", target="FROM"),
    378            "MASTER STATUS": _show_parser("MASTER STATUS"),
    379            "OPEN TABLES": _show_parser("OPEN TABLES"),
    380            "PLUGINS": _show_parser("PLUGINS"),
    381            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    382            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    383            "PRIVILEGES": _show_parser("PRIVILEGES"),
    384            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    385            "PROCESSLIST": _show_parser("PROCESSLIST"),
    386            "PROFILE": _show_parser("PROFILE"),
    387            "PROFILES": _show_parser("PROFILES"),
    388            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    389            "REPLICAS": _show_parser("REPLICAS"),
    390            "SLAVE HOSTS": _show_parser("REPLICAS"),
    391            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    392            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    393            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    394            "SESSION STATUS": _show_parser("STATUS"),
    395            "STATUS": _show_parser("STATUS"),
    396            "TABLE STATUS": _show_parser("TABLE STATUS"),
    397            "FULL TABLES": _show_parser("TABLES", full=True),
    398            "TABLES": _show_parser("TABLES"),
    399            "TRIGGERS": _show_parser("TRIGGERS"),
    400            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    401            "SESSION VARIABLES": _show_parser("VARIABLES"),
    402            "VARIABLES": _show_parser("VARIABLES"),
    403            "WARNINGS": _show_parser("WARNINGS"),
    404        }
    405
    406        PROPERTY_PARSERS = {
    407            **parser.Parser.PROPERTY_PARSERS,
    408            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    409        }
    410
    411        SET_PARSERS = {
    412            **parser.Parser.SET_PARSERS,
    413            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    414            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    415            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    416            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    417            "NAMES": lambda self: self._parse_set_item_names(),
    418        }
    419
    420        CONSTRAINT_PARSERS = {
    421            **parser.Parser.CONSTRAINT_PARSERS,
    422            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    423            "INDEX": lambda self: self._parse_index_constraint(),
    424            "KEY": lambda self: self._parse_index_constraint(),
    425            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    426        }
    427
    428        ALTER_PARSERS = {
    429            **parser.Parser.ALTER_PARSERS,
    430            "MODIFY": lambda self: self._parse_alter_table_alter(),
    431        }
    432
    433        SCHEMA_UNNAMED_CONSTRAINTS = {
    434            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    435            "FULLTEXT",
    436            "INDEX",
    437            "KEY",
    438            "SPATIAL",
    439        }
    440
    441        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    442            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    443            "BLOCK": ("IO",),
    444            "CONTEXT": ("SWITCHES",),
    445            "PAGE": ("FAULTS",),
    446        }
    447
    448        TYPE_TOKENS = {
    449            *parser.Parser.TYPE_TOKENS,
    450            TokenType.SET,
    451        }
    452
    453        ENUM_TYPE_TOKENS = {
    454            *parser.Parser.ENUM_TYPE_TOKENS,
    455            TokenType.SET,
    456        }
    457
    458        LOG_DEFAULTS_TO_LN = True
    459        STRING_ALIASES = True
    460        VALUES_FOLLOWED_BY_PAREN = False
    461        SUPPORTS_PARTITION_SELECTION = True
    462
    463        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    464            this = self._parse_id_var()
    465            if not self._match(TokenType.L_PAREN):
    466                return this
    467
    468            expression = self._parse_number()
    469            self._match_r_paren()
    470            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    471
    472        def _parse_index_constraint(
    473            self, kind: t.Optional[str] = None
    474        ) -> exp.IndexColumnConstraint:
    475            if kind:
    476                self._match_texts(("INDEX", "KEY"))
    477
    478            this = self._parse_id_var(any_token=False)
    479            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    480            expressions = self._parse_wrapped_csv(self._parse_ordered)
    481
    482            options = []
    483            while True:
    484                if self._match_text_seq("KEY_BLOCK_SIZE"):
    485                    self._match(TokenType.EQ)
    486                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    487                elif self._match(TokenType.USING):
    488                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    489                elif self._match_text_seq("WITH", "PARSER"):
    490                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    491                elif self._match(TokenType.COMMENT):
    492                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    493                elif self._match_text_seq("VISIBLE"):
    494                    opt = exp.IndexConstraintOption(visible=True)
    495                elif self._match_text_seq("INVISIBLE"):
    496                    opt = exp.IndexConstraintOption(visible=False)
    497                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    498                    self._match(TokenType.EQ)
    499                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    500                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    501                    self._match(TokenType.EQ)
    502                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    503                else:
    504                    opt = None
    505
    506                if not opt:
    507                    break
    508
    509                options.append(opt)
    510
    511            return self.expression(
    512                exp.IndexColumnConstraint,
    513                this=this,
    514                expressions=expressions,
    515                kind=kind,
    516                index_type=index_type,
    517                options=options,
    518            )
    519
    520        def _parse_show_mysql(
    521            self,
    522            this: str,
    523            target: bool | str = False,
    524            full: t.Optional[bool] = None,
    525            global_: t.Optional[bool] = None,
    526        ) -> exp.Show:
    527            if target:
    528                if isinstance(target, str):
    529                    self._match_text_seq(target)
    530                target_id = self._parse_id_var()
    531            else:
    532                target_id = None
    533
    534            log = self._parse_string() if self._match_text_seq("IN") else None
    535
    536            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    537                position = self._parse_number() if self._match_text_seq("FROM") else None
    538                db = None
    539            else:
    540                position = None
    541                db = None
    542
    543                if self._match(TokenType.FROM):
    544                    db = self._parse_id_var()
    545                elif self._match(TokenType.DOT):
    546                    db = target_id
    547                    target_id = self._parse_id_var()
    548
    549            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    550
    551            like = self._parse_string() if self._match_text_seq("LIKE") else None
    552            where = self._parse_where()
    553
    554            if this == "PROFILE":
    555                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    556                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    557                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    558                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    559            else:
    560                types, query = None, None
    561                offset, limit = self._parse_oldstyle_limit()
    562
    563            mutex = True if self._match_text_seq("MUTEX") else None
    564            mutex = False if self._match_text_seq("STATUS") else mutex
    565
    566            return self.expression(
    567                exp.Show,
    568                this=this,
    569                target=target_id,
    570                full=full,
    571                log=log,
    572                position=position,
    573                db=db,
    574                channel=channel,
    575                like=like,
    576                where=where,
    577                types=types,
    578                query=query,
    579                offset=offset,
    580                limit=limit,
    581                mutex=mutex,
    582                **{"global": global_},  # type: ignore
    583            )
    584
    585        def _parse_oldstyle_limit(
    586            self,
    587        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    588            limit = None
    589            offset = None
    590            if self._match_text_seq("LIMIT"):
    591                parts = self._parse_csv(self._parse_number)
    592                if len(parts) == 1:
    593                    limit = parts[0]
    594                elif len(parts) == 2:
    595                    limit = parts[1]
    596                    offset = parts[0]
    597
    598            return offset, limit
    599
    600        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    601            this = self._parse_string() or self._parse_id_var()
    602            return self.expression(exp.SetItem, this=this, kind=kind)
    603
    604        def _parse_set_item_names(self) -> exp.Expression:
    605            charset = self._parse_string() or self._parse_id_var()
    606            if self._match_text_seq("COLLATE"):
    607                collate = self._parse_string() or self._parse_id_var()
    608            else:
    609                collate = None
    610
    611            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    612
    613        def _parse_type(
    614            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    615        ) -> t.Optional[exp.Expression]:
    616            # mysql binary is special and can work anywhere, even in order by operations
    617            # it operates like a no paren func
    618            if self._match(TokenType.BINARY, advance=False):
    619                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    620
    621                if isinstance(data_type, exp.DataType):
    622                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    623
    624            return super()._parse_type(
    625                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    626            )
    627
    628        def _parse_chr(self) -> t.Optional[exp.Expression]:
    629            expressions = self._parse_csv(self._parse_conjunction)
    630            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
    631
    632            if len(expressions) > 1:
    633                kwargs["expressions"] = expressions[1:]
    634
    635            if self._match(TokenType.USING):
    636                kwargs["charset"] = self._parse_var()
    637
    638            return self.expression(exp.Chr, **kwargs)
    639
    640        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    641            def concat_exprs(
    642                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    643            ) -> exp.Expression:
    644                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    645                    concat_exprs = [
    646                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    647                    ]
    648                    node.set("expressions", concat_exprs)
    649                    return node
    650                if len(exprs) == 1:
    651                    return exprs[0]
    652                return self.expression(exp.Concat, expressions=args, safe=True)
    653
    654            args = self._parse_csv(self._parse_lambda)
    655
    656            if args:
    657                order = args[-1] if isinstance(args[-1], exp.Order) else None
    658
    659                if order:
    660                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    661                    # remove 'expr' from exp.Order and add it back to args
    662                    args[-1] = order.this
    663                    order.set("this", concat_exprs(order.this, args))
    664
    665                this = order or concat_exprs(args[0], args)
    666            else:
    667                this = None
    668
    669            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    670
    671            return self.expression(exp.GroupConcat, this=this, separator=separator)

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

FUNC_TOKENS = {<TokenType.MONEY: 'MONEY'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INDEX: 'INDEX'>, <TokenType.UINT256: 'UINT256'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.INT128: 'INT128'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.INT256: 'INT256'>, <TokenType.GLOB: 'GLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULL: 'NULL'>, <TokenType.XOR: 'XOR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DATE: 'DATE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.MERGE: 'MERGE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.BINARY: 'BINARY'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.BIT: 'BIT'>, <TokenType.UINT: 'UINT'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.UUID: 'UUID'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.LEFT: 'LEFT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.VAR: 'VAR'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.MAP: 'MAP'>, <TokenType.IPV4: 'IPV4'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.INT: 'INT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.LIKE: 'LIKE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.JSON: 'JSON'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.TIME: 'TIME'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.NESTED: 'NESTED'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.INSERT: 'INSERT'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ANY: 'ANY'>, <TokenType.VALUES: 'VALUES'>, <TokenType.INET: 'INET'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ALL: 'ALL'>, <TokenType.NAME: 'NAME'>, <TokenType.SOME: 'SOME'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.YEAR: 'YEAR'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.ROW: 'ROW'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.TINYBLOB: 'TINYBLOB'>}
CONJUNCTION = {<TokenType.AND: 'AND'>: <class 'sqlglot.expressions.And'>, <TokenType.OR: 'OR'>: <class 'sqlglot.expressions.Or'>, <TokenType.DAMP: 'DAMP'>: <class 'sqlglot.expressions.And'>, <TokenType.XOR: 'XOR'>: <class 'sqlglot.expressions.Xor'>, <TokenType.DPIPE: 'DPIPE'>: <class 'sqlglot.expressions.Or'>}
TABLE_ALIAS_TOKENS = {<TokenType.KILL: 'KILL'>, <TokenType.MONEY: 'MONEY'>, <TokenType.COPY: 'COPY'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TAG: 'TAG'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.ASC: 'ASC'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VIEW: 'VIEW'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INDEX: 'INDEX'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.UINT256: 'UINT256'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.CACHE: 'CACHE'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.INT128: 'INT128'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.INT256: 'INT256'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NULL: 'NULL'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.SET: 'SET'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.SHOW: 'SHOW'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.DATE: 'DATE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.MERGE: 'MERGE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.BINARY: 'BINARY'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.BIT: 'BIT'>, <TokenType.UINT: 'UINT'>, <TokenType.UUID: 'UUID'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.FALSE: 'FALSE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.TOP: 'TOP'>, <TokenType.SUPER: 'SUPER'>, <TokenType.CASE: 'CASE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.VAR: 'VAR'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.LOAD: 'LOAD'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.KEEP: 'KEEP'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.END: 'END'>, <TokenType.MAP: 'MAP'>, <TokenType.IPV4: 'IPV4'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.TRUE: 'TRUE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.NEXT: 'NEXT'>, <TokenType.INT: 'INT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.IS: 'IS'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.FINAL: 'FINAL'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.ROWS: 'ROWS'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.JSON: 'JSON'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.DELETE: 'DELETE'>, <TokenType.TIME: 'TIME'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.NESTED: 'NESTED'>, <TokenType.SEMI: 'SEMI'>, <TokenType.DESC: 'DESC'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.ANY: 'ANY'>, <TokenType.DIV: 'DIV'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.INET: 'INET'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ALL: 'ALL'>, <TokenType.NAME: 'NAME'>, <TokenType.SOME: 'SOME'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.YEAR: 'YEAR'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.ROW: 'ROW'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.MODEL: 'MODEL'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.TINYBLOB: 'TINYBLOB'>}
RANGE_PARSERS = {<TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.OVERLAPS: 'OVERLAPS'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>.<lambda>>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>, <TokenType.MEMBER_OF: 'MEMBER_OF'>: <function MySQL.Parser.<lambda>>}
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'>>, '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 MySQL.Parser.<lambda>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeAdd'>>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeSub'>>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <function MySQL.Parser.<lambda>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <function MySQL.Parser.<lambda>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <function MySQL.Parser.<lambda>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <function MySQL.Parser.<lambda>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, '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'>>, '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_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 build_extract_json_with_path.<locals>._builder>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, '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.MD5'>>, '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': <function MySQL.Parser.<lambda>>, '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'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, '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'>>, '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': <function _str_to_date>, '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'>>, '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_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMPDIFF': <function build_date_delta.<locals>._builder>, '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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, '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': <function MySQL.Parser.<lambda>>, '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'>>, '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': <function MySQL.Parser.<lambda>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <function MySQL.Parser.<lambda>>, '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': <function MySQL.Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'JSON_EXTRACT_PATH_TEXT': <function build_extract_json_with_path.<locals>._builder>, 'LIKE': <function build_like>, 'LOG2': <function Parser.<lambda>>, 'LOG10': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'TO_HEX': <function build_hex>, 'DATE_FORMAT': <function build_formatted_time.<locals>._builder>, 'INSTR': <function MySQL.Parser.<lambda>>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'ISNULL': <function isnull_to_is_null>, 'LOCATE': <function locate_to_strposition>, 'MAKETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MONTHNAME': <function MySQL.Parser.<lambda>>}
FUNCTION_PARSERS = {'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <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>>, 'TRIM': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'CHAR': <function MySQL.Parser.<lambda>>, 'GROUP_CONCAT': <function MySQL.Parser.<lambda>>, 'VALUES': <function MySQL.Parser.<lambda>>}
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.SHOW: 'SHOW'>: <function MySQL.Parser.<lambda>>}
SHOW_PARSERS = {'BINARY LOGS': <function _show_parser.<locals>._parse>, 'MASTER LOGS': <function _show_parser.<locals>._parse>, 'BINLOG EVENTS': <function _show_parser.<locals>._parse>, 'CHARACTER SET': <function _show_parser.<locals>._parse>, 'CHARSET': <function _show_parser.<locals>._parse>, 'COLLATION': <function _show_parser.<locals>._parse>, 'FULL COLUMNS': <function _show_parser.<locals>._parse>, 'COLUMNS': <function _show_parser.<locals>._parse>, 'CREATE DATABASE': <function _show_parser.<locals>._parse>, 'CREATE EVENT': <function _show_parser.<locals>._parse>, 'CREATE FUNCTION': <function _show_parser.<locals>._parse>, 'CREATE PROCEDURE': <function _show_parser.<locals>._parse>, 'CREATE TABLE': <function _show_parser.<locals>._parse>, 'CREATE TRIGGER': <function _show_parser.<locals>._parse>, 'CREATE VIEW': <function _show_parser.<locals>._parse>, 'DATABASES': <function _show_parser.<locals>._parse>, 'SCHEMAS': <function _show_parser.<locals>._parse>, 'ENGINE': <function _show_parser.<locals>._parse>, 'STORAGE ENGINES': <function _show_parser.<locals>._parse>, 'ENGINES': <function _show_parser.<locals>._parse>, 'ERRORS': <function _show_parser.<locals>._parse>, 'EVENTS': <function _show_parser.<locals>._parse>, 'FUNCTION CODE': <function _show_parser.<locals>._parse>, 'FUNCTION STATUS': <function _show_parser.<locals>._parse>, 'GRANTS': <function _show_parser.<locals>._parse>, 'INDEX': <function _show_parser.<locals>._parse>, 'MASTER STATUS': <function _show_parser.<locals>._parse>, 'OPEN TABLES': <function _show_parser.<locals>._parse>, 'PLUGINS': <function _show_parser.<locals>._parse>, 'PROCEDURE CODE': <function _show_parser.<locals>._parse>, 'PROCEDURE STATUS': <function _show_parser.<locals>._parse>, 'PRIVILEGES': <function _show_parser.<locals>._parse>, 'FULL PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROFILE': <function _show_parser.<locals>._parse>, 'PROFILES': <function _show_parser.<locals>._parse>, 'RELAYLOG EVENTS': <function _show_parser.<locals>._parse>, 'REPLICAS': <function _show_parser.<locals>._parse>, 'SLAVE HOSTS': <function _show_parser.<locals>._parse>, 'REPLICA STATUS': <function _show_parser.<locals>._parse>, 'SLAVE STATUS': <function _show_parser.<locals>._parse>, 'GLOBAL STATUS': <function _show_parser.<locals>._parse>, 'SESSION STATUS': <function _show_parser.<locals>._parse>, 'STATUS': <function _show_parser.<locals>._parse>, 'TABLE STATUS': <function _show_parser.<locals>._parse>, 'FULL TABLES': <function _show_parser.<locals>._parse>, 'TABLES': <function _show_parser.<locals>._parse>, 'TRIGGERS': <function _show_parser.<locals>._parse>, 'GLOBAL VARIABLES': <function _show_parser.<locals>._parse>, 'SESSION VARIABLES': <function _show_parser.<locals>._parse>, 'VARIABLES': <function _show_parser.<locals>._parse>, 'WARNINGS': <function _show_parser.<locals>._parse>}
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>>, '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 MySQL.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>>, '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>>}
SET_PARSERS = {'GLOBAL': <function Parser.<lambda>>, 'LOCAL': <function Parser.<lambda>>, 'SESSION': <function Parser.<lambda>>, 'TRANSACTION': <function Parser.<lambda>>, 'PERSIST': <function MySQL.Parser.<lambda>>, 'PERSIST_ONLY': <function MySQL.Parser.<lambda>>, 'CHARACTER SET': <function MySQL.Parser.<lambda>>, 'CHARSET': <function MySQL.Parser.<lambda>>, 'NAMES': <function MySQL.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>>, 'FULLTEXT': <function MySQL.Parser.<lambda>>, 'INDEX': <function MySQL.Parser.<lambda>>, 'KEY': <function MySQL.Parser.<lambda>>, 'SPATIAL': <function MySQL.Parser.<lambda>>}
ALTER_PARSERS = {'ADD': <function Parser.<lambda>>, 'ALTER': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'DELETE': <function Parser.<lambda>>, 'DROP': <function Parser.<lambda>>, 'RENAME': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'MODIFY': <function MySQL.Parser.<lambda>>}
SCHEMA_UNNAMED_CONSTRAINTS = {'EXCLUDE', 'FULLTEXT', 'KEY', 'UNIQUE', 'LIKE', 'CHECK', 'FOREIGN KEY', 'PERIOD', 'SPATIAL', 'PRIMARY KEY', 'INDEX'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.MONEY: 'MONEY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TEXT: 'TEXT'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATE32: 'DATE32'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.INT: 'INT'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.UINT256: 'UINT256'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.INT128: 'INT128'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INT256: 'INT256'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.NULL: 'NULL'>, <TokenType.JSON: 'JSON'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.TIME: 'TIME'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.NESTED: 'NESTED'>, <TokenType.SET: 'SET'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.INET: 'INET'>, <TokenType.DATE: 'DATE'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BINARY: 'BINARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.NAME: 'NAME'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.YEAR: 'YEAR'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.BIT: 'BIT'>, <TokenType.UINT: 'UINT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UUID: 'UUID'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.IPV4: 'IPV4'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>}
ENUM_TYPE_TOKENS = {<TokenType.ENUM: 'ENUM'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.SET: 'SET'>, <TokenType.ENUM16: 'ENUM16'>}
LOG_DEFAULTS_TO_LN = True
STRING_ALIASES = True
VALUES_FOLLOWED_BY_PAREN = False
SUPPORTS_PARTITION_SELECTION = True
SHOW_TRIE: Dict = {'BINARY': {'LOGS': {0: True}}, 'MASTER': {'LOGS': {0: True}, 'STATUS': {0: True}}, 'BINLOG': {'EVENTS': {0: True}}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'COLLATION': {0: True}, 'FULL': {'COLUMNS': {0: True}, 'PROCESSLIST': {0: True}, 'TABLES': {0: True}}, 'COLUMNS': {0: True}, 'CREATE': {'DATABASE': {0: True}, 'EVENT': {0: True}, 'FUNCTION': {0: True}, 'PROCEDURE': {0: True}, 'TABLE': {0: True}, 'TRIGGER': {0: True}, 'VIEW': {0: True}}, 'DATABASES': {0: True}, 'SCHEMAS': {0: True}, 'ENGINE': {0: True}, 'STORAGE': {'ENGINES': {0: True}}, 'ENGINES': {0: True}, 'ERRORS': {0: True}, 'EVENTS': {0: True}, 'FUNCTION': {'CODE': {0: True}, 'STATUS': {0: True}}, 'GRANTS': {0: True}, 'INDEX': {0: True}, 'OPEN': {'TABLES': {0: True}}, 'PLUGINS': {0: True}, 'PROCEDURE': {'CODE': {0: True}, 'STATUS': {0: True}}, 'PRIVILEGES': {0: True}, 'PROCESSLIST': {0: True}, 'PROFILE': {0: True}, 'PROFILES': {0: True}, 'RELAYLOG': {'EVENTS': {0: True}}, 'REPLICAS': {0: True}, 'SLAVE': {'HOSTS': {0: True}, 'STATUS': {0: True}}, 'REPLICA': {'STATUS': {0: True}}, 'GLOBAL': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'SESSION': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'STATUS': {0: True}, 'TABLE': {'STATUS': {0: True}}, 'TABLES': {0: True}, 'TRIGGERS': {0: True}, 'VARIABLES': {0: True}, 'WARNINGS': {0: True}}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}, 'PERSIST': {0: True}, 'PERSIST_ONLY': {0: True}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'NAMES': {0: True}}

##### Inherited Members

sqlglot.parser.Parser
  Parser
  NO_PAREN_FUNCTIONS
  STRUCT_TYPE_TOKENS
  NESTED_TYPE_TOKENS
  AGGREGATE_TYPE_TOKENS
  SIGNED_TO_UNSIGNED_TYPE_TOKEN
  SUBQUERY_PREDICATES
  RESERVED_TOKENS
  DB_CREATABLES
  CREATABLES
  ID_VAR_TOKENS
  INTERVAL_VARS
  ALIAS_TOKENS
  COMMENT_TABLE_ALIAS_TOKENS
  UPDATE_ALIAS_TOKENS
  TRIM_TYPES
  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_ALTER_PARSERS
  NO_PAREN_FUNCTION_PARSERS
  INVALID_FUNC_NAME_TOKENS
  FUNCTIONS_WITH_ALIASED_ARGS
  KEY_VALUE_DEFINITIONS
  QUERY_MODIFIER_PARSERS
  TYPE_LITERAL_PARSERS
  TYPE_CONVERTER
  DDL_SELECT_TOKENS
  PRE_VOLATILE_TOKENS
  TRANSACTION_KIND
  TRANSACTION_CHARACTERISTICS
  CONFLICT_ACTIONS
  CREATE_SEQUENCE
  ISOLATED_LOADING_OPTIONS
  USABLES
  CAST_ACTIONS
  INSERT_ALTERNATIVES
  CLONE_KEYWORDS
  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
  NULL_TOKENS
  UNNEST_OFFSET_ALIAS_TOKENS
  SELECT_START_TOKENS
  STRICT_CAST
  PREFIXED_PIVOT_COLUMNS
  IDENTIFY_PIVOT_STRINGS
  ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
  TABLESAMPLE_CSV
  DEFAULT_SAMPLING_METHOD
  SET_REQUIRES_ASSIGNMENT_DELIMITER
  TRIM_PATTERN_FIRST
  MODIFIERS_ATTACHED_TO_UNION
  UNION_MODIFIERS
  NO_PAREN_IF_COMMANDS
  JSON_ARROWS_REQUIRE_JSON_TYPE
  COLON_IS_JSON_EXTRACT
  SUPPORTS_IMPLICIT_UNNEST
  INTERVAL_SPANS
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  errors
  sql

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

    673    class Generator(generator.Generator):
    674        LOCKING_READS_SUPPORTED = True
    675        NULL_ORDERING_SUPPORTED = None
    676        JOIN_HINTS = False
    677        TABLE_HINTS = True
    678        DUPLICATE_KEY_UPDATE_WITH_SET = False
    679        QUERY_HINT_SEP = " "
    680        VALUES_AS_TABLE = False
    681        NVL2_SUPPORTED = False
    682        LAST_DAY_SUPPORTS_DATE_PART = False
    683        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
    684        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
    685        JSON_KEY_VALUE_PAIR_SEP = ","
    686        SUPPORTS_TO_NUMBER = False
    687
    688        TRANSFORMS = {
    689            **generator.Generator.TRANSFORMS,
    690            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
    691            exp.CurrentDate: no_paren_current_date_sql,
    692            exp.DateDiff: _remove_ts_or_ds_to_date(
    693                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
    694            ),
    695            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
    696            exp.DateStrToDate: datestrtodate_sql,
    697            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
    698            exp.DateTrunc: _date_trunc_sql,
    699            exp.Day: _remove_ts_or_ds_to_date(),
    700            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
    701            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
    702            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
    703            exp.GroupConcat: lambda self,
    704            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
    705            exp.ILike: no_ilike_sql,
    706            exp.JSONExtractScalar: arrow_json_extract_sql,
    707            exp.Max: max_or_greatest,
    708            exp.Min: min_or_least,
    709            exp.Month: _remove_ts_or_ds_to_date(),
    710            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
    711            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
    712            exp.ParseJSON: lambda self, e: self.sql(e, "this"),
    713            exp.Pivot: no_pivot_sql,
    714            exp.Select: transforms.preprocess(
    715                [
    716                    transforms.eliminate_distinct_on,
    717                    transforms.eliminate_semi_and_anti_joins,
    718                    transforms.eliminate_qualify,
    719                    transforms.eliminate_full_outer_join,
    720                ]
    721            ),
    722            exp.StrPosition: strposition_to_locate_sql,
    723            exp.StrToDate: _str_to_date_sql,
    724            exp.StrToTime: _str_to_date_sql,
    725            exp.Stuff: rename_func("INSERT"),
    726            exp.TableSample: no_tablesample_sql,
    727            exp.TimeFromParts: rename_func("MAKETIME"),
    728            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
    729            exp.TimestampDiff: lambda self, e: self.func(
    730                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
    731            ),
    732            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
    733            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    734            exp.TimeStrToTime: lambda self, e: self.sql(
    735                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
    736            ),
    737            exp.TimeToStr: _remove_ts_or_ds_to_date(
    738                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
    739            ),
    740            exp.Trim: _trim_sql,
    741            exp.TryCast: no_trycast_sql,
    742            exp.TsOrDsAdd: date_add_sql("ADD"),
    743            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
    744            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    745            exp.UnixToTime: _unix_to_time_sql,
    746            exp.Week: _remove_ts_or_ds_to_date(),
    747            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
    748            exp.Year: _remove_ts_or_ds_to_date(),
    749        }
    750
    751        UNSIGNED_TYPE_MAPPING = {
    752            exp.DataType.Type.UBIGINT: "BIGINT",
    753            exp.DataType.Type.UINT: "INT",
    754            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
    755            exp.DataType.Type.USMALLINT: "SMALLINT",
    756            exp.DataType.Type.UTINYINT: "TINYINT",
    757            exp.DataType.Type.UDECIMAL: "DECIMAL",
    758        }
    759
    760        TIMESTAMP_TYPE_MAPPING = {
    761            exp.DataType.Type.TIMESTAMP: "DATETIME",
    762            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    763            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
    764        }
    765
    766        TYPE_MAPPING = {
    767            **generator.Generator.TYPE_MAPPING,
    768            **UNSIGNED_TYPE_MAPPING,
    769            **TIMESTAMP_TYPE_MAPPING,
    770        }
    771
    772        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    773        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    774        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
    775        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    776        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    777        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
    778
    779        PROPERTIES_LOCATION = {
    780            **generator.Generator.PROPERTIES_LOCATION,
    781            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    782            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    783        }
    784
    785        LIMIT_FETCH = "LIMIT"
    786
    787        LIMIT_ONLY_LITERALS = True
    788
    789        CHAR_CAST_MAPPING = dict.fromkeys(
    790            (
    791                exp.DataType.Type.LONGTEXT,
    792                exp.DataType.Type.LONGBLOB,
    793                exp.DataType.Type.MEDIUMBLOB,
    794                exp.DataType.Type.MEDIUMTEXT,
    795                exp.DataType.Type.TEXT,
    796                exp.DataType.Type.TINYBLOB,
    797                exp.DataType.Type.TINYTEXT,
    798                exp.DataType.Type.VARCHAR,
    799            ),
    800            "CHAR",
    801        )
    802        SIGNED_CAST_MAPPING = dict.fromkeys(
    803            (
    804                exp.DataType.Type.BIGINT,
    805                exp.DataType.Type.BOOLEAN,
    806                exp.DataType.Type.INT,
    807                exp.DataType.Type.SMALLINT,
    808                exp.DataType.Type.TINYINT,
    809                exp.DataType.Type.MEDIUMINT,
    810            ),
    811            "SIGNED",
    812        )
    813
    814        # MySQL doesn't support many datatypes in cast.
    815        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
    816        CAST_MAPPING = {
    817            **CHAR_CAST_MAPPING,
    818            **SIGNED_CAST_MAPPING,
    819            exp.DataType.Type.UBIGINT: "UNSIGNED",
    820        }
    821
    822        TIMESTAMP_FUNC_TYPES = {
    823            exp.DataType.Type.TIMESTAMPTZ,
    824            exp.DataType.Type.TIMESTAMPLTZ,
    825        }
    826
    827        def dpipe_sql(self, expression: exp.DPipe) -> str:
    828            return self.func("CONCAT", *expression.flatten())
    829
    830        def extract_sql(self, expression: exp.Extract) -> str:
    831            unit = expression.name
    832            if unit and unit.lower() == "epoch":
    833                return self.func("UNIX_TIMESTAMP", expression.expression)
    834
    835            return super().extract_sql(expression)
    836
    837        def datatype_sql(self, expression: exp.DataType) -> str:
    838            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    839            result = super().datatype_sql(expression)
    840            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    841                result = f"{result} UNSIGNED"
    842            return result
    843
    844        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    845            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    846
    847        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    848            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    849                return self.func("TIMESTAMP", expression.this)
    850
    851            to = self.CAST_MAPPING.get(expression.to.this)
    852
    853            if to:
    854                expression.to.set("this", to)
    855            return super().cast_sql(expression)
    856
    857        def show_sql(self, expression: exp.Show) -> str:
    858            this = f" {expression.name}"
    859            full = " FULL" if expression.args.get("full") else ""
    860            global_ = " GLOBAL" if expression.args.get("global") else ""
    861
    862            target = self.sql(expression, "target")
    863            target = f" {target}" if target else ""
    864            if expression.name in ("COLUMNS", "INDEX"):
    865                target = f" FROM{target}"
    866            elif expression.name == "GRANTS":
    867                target = f" FOR{target}"
    868
    869            db = self._prefixed_sql("FROM", expression, "db")
    870
    871            like = self._prefixed_sql("LIKE", expression, "like")
    872            where = self.sql(expression, "where")
    873
    874            types = self.expressions(expression, key="types")
    875            types = f" {types}" if types else types
    876            query = self._prefixed_sql("FOR QUERY", expression, "query")
    877
    878            if expression.name == "PROFILE":
    879                offset = self._prefixed_sql("OFFSET", expression, "offset")
    880                limit = self._prefixed_sql("LIMIT", expression, "limit")
    881            else:
    882                offset = ""
    883                limit = self._oldstyle_limit_sql(expression)
    884
    885            log = self._prefixed_sql("IN", expression, "log")
    886            position = self._prefixed_sql("FROM", expression, "position")
    887
    888            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    889
    890            if expression.name == "ENGINE":
    891                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    892            else:
    893                mutex_or_status = ""
    894
    895            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    896
    897        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    898            dtype = self.sql(expression, "dtype")
    899            if not dtype:
    900                return super().altercolumn_sql(expression)
    901
    902            this = self.sql(expression, "this")
    903            return f"MODIFY COLUMN {this} {dtype}"
    904
    905        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    906            sql = self.sql(expression, arg)
    907            return f" {prefix} {sql}" if sql else ""
    908
    909        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    910            limit = self.sql(expression, "limit")
    911            offset = self.sql(expression, "offset")
    912            if limit:
    913                limit_offset = f"{offset}, {limit}" if offset else limit
    914                return f" LIMIT {limit_offset}"
    915            return ""
    916
    917        def chr_sql(self, expression: exp.Chr) -> str:
    918            this = self.expressions(sqls=[expression.this] + expression.expressions)
    919            charset = expression.args.get("charset")
    920            using = f" USING {self.sql(charset)}" if charset else ""
    921            return f"CHAR({this}{using})"
    922
    923        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    924            unit = expression.args.get("unit")
    925
    926            # Pick an old-enough date to avoid negative timestamp diffs
    927            start_ts = "'0000-01-01 00:00:00'"
    928
    929            # Source: https://stackoverflow.com/a/32955740
    930            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    931            interval = exp.Interval(this=timestamp_diff, unit=unit)
    932            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    933
    934            return self.sql(dateadd)

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

LOCKING_READS_SUPPORTED = True
NULL_ORDERING_SUPPORTED = None
JOIN_HINTS = False
TABLE_HINTS = True
DUPLICATE_KEY_UPDATE_WITH_SET = False
QUERY_HINT_SEP = ' '
VALUES_AS_TABLE = False
NVL2_SUPPORTED = False
LAST_DAY_SUPPORTS_DATE_PART = False
JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
JSON_PATH_BRACKETED_KEY_SUPPORTED = False
JSON_KEY_VALUE_PAIR_SEP = ','
SUPPORTS_TO_NUMBER = False
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathFilter'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRecursive'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathScript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSelector'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSlice'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathUnion'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <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.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <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 arrow_json_extract_sql>, <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.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <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 Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <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.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayAgg'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDate'>: <function no_paren_current_date_sql>, <class 'sqlglot.expressions.DateDiff'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateAdd'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateSub'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateTrunc'>: <function _date_trunc_sql>, <class 'sqlglot.expressions.Day'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfMonth'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfWeek'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.GroupConcat'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.Month'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.NullSafeEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.NullSafeNEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.ParseJSON'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrPosition'>: <function strposition_to_locate_sql>, <class 'sqlglot.expressions.StrToDate'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.StrToTime'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.Stuff'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TableSample'>: <function no_tablesample_sql>, <class 'sqlglot.expressions.TimeFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Trim'>: <function _trim_sql>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function date_add_sql.<locals>.func>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function _ts_or_ds_to_date_sql>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.Week'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.WeekOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Year'>: <function _remove_ts_or_ds_to_date.<locals>.func>}
UNSIGNED_TYPE_MAPPING = {<Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL'}
TIMESTAMP_TYPE_MAPPING = {<Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
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.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_WITH: 'POST_WITH'>, <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.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.UNSUPPORTED: 'UNSUPPORTED'>, <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.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
LIMIT_FETCH = 'LIMIT'
LIMIT_ONLY_LITERALS = True
CHAR_CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR'}
SIGNED_CAST_MAPPING = {<Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED'}
CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR', <Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED', <Type.UBIGINT: 'UBIGINT'>: 'UNSIGNED'}
TIMESTAMP_FUNC_TYPES = {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>}
def dpipe_sql(self, expression: sqlglot.expressions.DPipe) -> str: View Source

    827        def dpipe_sql(self, expression: exp.DPipe) -> str:
    828            return self.func("CONCAT", *expression.flatten())

def extract_sql(self, expression: sqlglot.expressions.Extract) -> str: View Source

    830        def extract_sql(self, expression: exp.Extract) -> str:
    831            unit = expression.name
    832            if unit and unit.lower() == "epoch":
    833                return self.func("UNIX_TIMESTAMP", expression.expression)
    834
    835            return super().extract_sql(expression)

def datatype_sql(self, expression: sqlglot.expressions.DataType) -> str: View Source

    837        def datatype_sql(self, expression: exp.DataType) -> str:
    838            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    839            result = super().datatype_sql(expression)
    840            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    841                result = f"{result} UNSIGNED"
    842            return result

def jsonarraycontains_sql(self, expression: sqlglot.expressions.JSONArrayContains) -> str: View Source

    844        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    845            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"

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

    847        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    848            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    849                return self.func("TIMESTAMP", expression.this)
    850
    851            to = self.CAST_MAPPING.get(expression.to.this)
    852
    853            if to:
    854                expression.to.set("this", to)
    855            return super().cast_sql(expression)

def show_sql(self, expression: sqlglot.expressions.Show) -> str: View Source

    857        def show_sql(self, expression: exp.Show) -> str:
    858            this = f" {expression.name}"
    859            full = " FULL" if expression.args.get("full") else ""
    860            global_ = " GLOBAL" if expression.args.get("global") else ""
    861
    862            target = self.sql(expression, "target")
    863            target = f" {target}" if target else ""
    864            if expression.name in ("COLUMNS", "INDEX"):
    865                target = f" FROM{target}"
    866            elif expression.name == "GRANTS":
    867                target = f" FOR{target}"
    868
    869            db = self._prefixed_sql("FROM", expression, "db")
    870
    871            like = self._prefixed_sql("LIKE", expression, "like")
    872            where = self.sql(expression, "where")
    873
    874            types = self.expressions(expression, key="types")
    875            types = f" {types}" if types else types
    876            query = self._prefixed_sql("FOR QUERY", expression, "query")
    877
    878            if expression.name == "PROFILE":
    879                offset = self._prefixed_sql("OFFSET", expression, "offset")
    880                limit = self._prefixed_sql("LIMIT", expression, "limit")
    881            else:
    882                offset = ""
    883                limit = self._oldstyle_limit_sql(expression)
    884
    885            log = self._prefixed_sql("IN", expression, "log")
    886            position = self._prefixed_sql("FROM", expression, "position")
    887
    888            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    889
    890            if expression.name == "ENGINE":
    891                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    892            else:
    893                mutex_or_status = ""
    894
    895            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"

def altercolumn_sql(self, expression: sqlglot.expressions.AlterColumn) -> str: View Source

    897        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    898            dtype = self.sql(expression, "dtype")
    899            if not dtype:
    900                return super().altercolumn_sql(expression)
    901
    902            this = self.sql(expression, "this")
    903            return f"MODIFY COLUMN {this} {dtype}"

def chr_sql(self, expression: sqlglot.expressions.Chr) -> str: View Source

    917        def chr_sql(self, expression: exp.Chr) -> str:
    918            this = self.expressions(sqls=[expression.this] + expression.expressions)
    919            charset = expression.args.get("charset")
    920            using = f" USING {self.sql(charset)}" if charset else ""
    921            return f"CHAR({this}{using})"

def timestamptrunc_sql(self, expression: sqlglot.expressions.TimestampTrunc) -> str: View Source

    923        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    924            unit = expression.args.get("unit")
    925
    926            # Pick an old-enough date to avoid negative timestamp diffs
    927            start_ts = "'0000-01-01 00:00:00'"
    928
    929            # Source: https://stackoverflow.com/a/32955740
    930            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    931            interval = exp.Interval(this=timestamp_diff, unit=unit)
    932            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    933
    934            return self.sql(dateadd)

SELECT_KINDS: Tuple[str, ...] = ()
TRY_SUPPORTED = False
AFTER_HAVING_MODIFIER_TRANSFORMS = {'qualify': <function Generator.<lambda>>, 'windows': <function Generator.<lambda>>}

##### Inherited Members

sqlglot.generator.Generator
  Generator
  IGNORE_NULLS_IN_FUNC
  EXPLICIT_UNION
  WRAP_DERIVED_VALUES
  CREATE_FUNCTION_RETURN_AS
  MATCHED_BY_SOURCE
  SINGLE_STRING_INTERVAL
  INTERVAL_ALLOWS_PLURAL_FORM
  RENAME_TABLE_WITH_DB
  GROUPINGS_SEP
  INDEX_ON
  QUERY_HINTS
  IS_BOOL_ALLOWED
  LIMIT_IS_TOP
  RETURNING_END
  COLUMN_JOIN_MARKS_SUPPORTED
  EXTRACT_ALLOWS_QUOTES
  TZ_TO_WITH_TIME_ZONE
  ALTER_TABLE_INCLUDE_COLUMN_KEYWORD
  UNNEST_WITH_ORDINALITY
  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
  COLLATE_IS_FUNC
  DATA_TYPE_SPECIFIERS_ALLOWED
  ENSURE_BOOLS
  CTE_RECURSIVE_KEYWORD_REQUIRED
  SUPPORTS_SINGLE_ARG_CONCAT
  SUPPORTS_TABLE_ALIAS_COLUMNS
  UNPIVOT_ALIASES_ARE_IDENTIFIERS
  INSERT_OVERWRITE
  SUPPORTS_SELECT_INTO
  SUPPORTS_UNLOGGED_TABLES
  SUPPORTS_CREATE_TABLE_LIKE
  LIKE_PROPERTY_INSIDE_SCHEMA
  MULTI_ARG_DISTINCT
  JSON_PATH_SINGLE_QUOTE_ESCAPE
  SUPPORTED_JSON_PATH_PARTS
  CAN_IMPLEMENT_ARRAY_ANY
  OUTER_UNION_MODIFIERS
  COPY_PARAMS_ARE_WRAPPED
  COPY_PARAMS_EQ_REQUIRED
  COPY_HAS_INTO_KEYWORD
  STAR_EXCEPT
  HEX_FUNC
  WITH_PROPERTIES_PREFIX
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  NAMED_PLACEHOLDER_TOKEN
  RESERVED_KEYWORDS
  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_parts
  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
  directory_sql
  delete_sql
  drop_sql
  except_sql
  except_op
  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
  intersect_op
  introducer_sql
  kill_sql
  pseudotype_sql
  objectidentifier_sql
  onconflict_sql
  returning_sql
  rowformatdelimitedproperty_sql
  withtablehint_sql
  indextablehint_sql
  historicaldata_sql
  table_parts
  table_sql
  tablesample_sql
  pivot_sql
  version_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
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