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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            "KEY": TokenType.KEY,
     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        }
     284
     285        DISJUNCTION = {
     286            **parser.Parser.DISJUNCTION,
     287            TokenType.DPIPE: exp.Or,
     288        }
     289
     290        TABLE_ALIAS_TOKENS = (
     291            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     292        )
     293
     294        RANGE_PARSERS = {
     295            **parser.Parser.RANGE_PARSERS,
     296            TokenType.MEMBER_OF: lambda self, this: self.expression(
     297                exp.JSONArrayContains,
     298                this=this,
     299                expression=self._parse_wrapped(self._parse_expression),
     300            ),
     301        }
     302
     303        FUNCTIONS = {
     304            **parser.Parser.FUNCTIONS,
     305            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
     306            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     307            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
     308            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     309            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     310            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     311            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     312            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     313            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
     314            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     315            "ISNULL": isnull_to_is_null,
     316            "LOCATE": locate_to_strposition,
     317            "MAKETIME": exp.TimeFromParts.from_arg_list,
     318            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     319            "MONTHNAME": lambda args: exp.TimeToStr(
     320                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     321                format=exp.Literal.string("%B"),
     322            ),
     323            "STR_TO_DATE": _str_to_date,
     324            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
     325            "TO_DAYS": lambda args: exp.paren(
     326                exp.DateDiff(
     327                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     328                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
     329                    unit=exp.var("DAY"),
     330                )
     331                + 1
     332            ),
     333            "WEEK": lambda args: exp.Week(
     334                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
     335            ),
     336            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     337            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     338        }
     339
     340        FUNCTION_PARSERS = {
     341            **parser.Parser.FUNCTION_PARSERS,
     342            "CHAR": lambda self: self._parse_chr(),
     343            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     344            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     345            "VALUES": lambda self: self.expression(
     346                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     347            ),
     348        }
     349
     350        STATEMENT_PARSERS = {
     351            **parser.Parser.STATEMENT_PARSERS,
     352            TokenType.SHOW: lambda self: self._parse_show(),
     353        }
     354
     355        SHOW_PARSERS = {
     356            "BINARY LOGS": _show_parser("BINARY LOGS"),
     357            "MASTER LOGS": _show_parser("BINARY LOGS"),
     358            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     359            "CHARACTER SET": _show_parser("CHARACTER SET"),
     360            "CHARSET": _show_parser("CHARACTER SET"),
     361            "COLLATION": _show_parser("COLLATION"),
     362            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     363            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     364            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     365            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     366            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     367            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     368            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     369            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     370            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     371            "DATABASES": _show_parser("DATABASES"),
     372            "SCHEMAS": _show_parser("DATABASES"),
     373            "ENGINE": _show_parser("ENGINE", target=True),
     374            "STORAGE ENGINES": _show_parser("ENGINES"),
     375            "ENGINES": _show_parser("ENGINES"),
     376            "ERRORS": _show_parser("ERRORS"),
     377            "EVENTS": _show_parser("EVENTS"),
     378            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     379            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     380            "GRANTS": _show_parser("GRANTS", target="FOR"),
     381            "INDEX": _show_parser("INDEX", target="FROM"),
     382            "MASTER STATUS": _show_parser("MASTER STATUS"),
     383            "OPEN TABLES": _show_parser("OPEN TABLES"),
     384            "PLUGINS": _show_parser("PLUGINS"),
     385            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     386            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     387            "PRIVILEGES": _show_parser("PRIVILEGES"),
     388            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     389            "PROCESSLIST": _show_parser("PROCESSLIST"),
     390            "PROFILE": _show_parser("PROFILE"),
     391            "PROFILES": _show_parser("PROFILES"),
     392            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     393            "REPLICAS": _show_parser("REPLICAS"),
     394            "SLAVE HOSTS": _show_parser("REPLICAS"),
     395            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     396            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     397            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     398            "SESSION STATUS": _show_parser("STATUS"),
     399            "STATUS": _show_parser("STATUS"),
     400            "TABLE STATUS": _show_parser("TABLE STATUS"),
     401            "FULL TABLES": _show_parser("TABLES", full=True),
     402            "TABLES": _show_parser("TABLES"),
     403            "TRIGGERS": _show_parser("TRIGGERS"),
     404            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     405            "SESSION VARIABLES": _show_parser("VARIABLES"),
     406            "VARIABLES": _show_parser("VARIABLES"),
     407            "WARNINGS": _show_parser("WARNINGS"),
     408        }
     409
     410        PROPERTY_PARSERS = {
     411            **parser.Parser.PROPERTY_PARSERS,
     412            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     413        }
     414
     415        SET_PARSERS = {
     416            **parser.Parser.SET_PARSERS,
     417            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     418            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     419            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     420            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     421            "NAMES": lambda self: self._parse_set_item_names(),
     422        }
     423
     424        CONSTRAINT_PARSERS = {
     425            **parser.Parser.CONSTRAINT_PARSERS,
     426            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     427            "INDEX": lambda self: self._parse_index_constraint(),
     428            "KEY": lambda self: self._parse_index_constraint(),
     429            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     430        }
     431
     432        ALTER_PARSERS = {
     433            **parser.Parser.ALTER_PARSERS,
     434            "MODIFY": lambda self: self._parse_alter_table_alter(),
     435        }
     436
     437        SCHEMA_UNNAMED_CONSTRAINTS = {
     438            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     439            "FULLTEXT",
     440            "INDEX",
     441            "KEY",
     442            "SPATIAL",
     443        }
     444
     445        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     446            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     447            "BLOCK": ("IO",),
     448            "CONTEXT": ("SWITCHES",),
     449            "PAGE": ("FAULTS",),
     450        }
     451
     452        TYPE_TOKENS = {
     453            *parser.Parser.TYPE_TOKENS,
     454            TokenType.SET,
     455        }
     456
     457        ENUM_TYPE_TOKENS = {
     458            *parser.Parser.ENUM_TYPE_TOKENS,
     459            TokenType.SET,
     460        }
     461
     462        LOG_DEFAULTS_TO_LN = True
     463        STRING_ALIASES = True
     464        VALUES_FOLLOWED_BY_PAREN = False
     465        SUPPORTS_PARTITION_SELECTION = True
     466
     467        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     468            this = self._parse_id_var()
     469            if not self._match(TokenType.L_PAREN):
     470                return this
     471
     472            expression = self._parse_number()
     473            self._match_r_paren()
     474            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     475
     476        def _parse_index_constraint(
     477            self, kind: t.Optional[str] = None
     478        ) -> exp.IndexColumnConstraint:
     479            if kind:
     480                self._match_texts(("INDEX", "KEY"))
     481
     482            this = self._parse_id_var(any_token=False)
     483            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     484            expressions = self._parse_wrapped_csv(self._parse_ordered)
     485
     486            options = []
     487            while True:
     488                if self._match_text_seq("KEY_BLOCK_SIZE"):
     489                    self._match(TokenType.EQ)
     490                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     491                elif self._match(TokenType.USING):
     492                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     493                elif self._match_text_seq("WITH", "PARSER"):
     494                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     495                elif self._match(TokenType.COMMENT):
     496                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     497                elif self._match_text_seq("VISIBLE"):
     498                    opt = exp.IndexConstraintOption(visible=True)
     499                elif self._match_text_seq("INVISIBLE"):
     500                    opt = exp.IndexConstraintOption(visible=False)
     501                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     502                    self._match(TokenType.EQ)
     503                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     504                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     505                    self._match(TokenType.EQ)
     506                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     507                else:
     508                    opt = None
     509
     510                if not opt:
     511                    break
     512
     513                options.append(opt)
     514
     515            return self.expression(
     516                exp.IndexColumnConstraint,
     517                this=this,
     518                expressions=expressions,
     519                kind=kind,
     520                index_type=index_type,
     521                options=options,
     522            )
     523
     524        def _parse_show_mysql(
     525            self,
     526            this: str,
     527            target: bool | str = False,
     528            full: t.Optional[bool] = None,
     529            global_: t.Optional[bool] = None,
     530        ) -> exp.Show:
     531            if target:
     532                if isinstance(target, str):
     533                    self._match_text_seq(target)
     534                target_id = self._parse_id_var()
     535            else:
     536                target_id = None
     537
     538            log = self._parse_string() if self._match_text_seq("IN") else None
     539
     540            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     541                position = self._parse_number() if self._match_text_seq("FROM") else None
     542                db = None
     543            else:
     544                position = None
     545                db = None
     546
     547                if self._match(TokenType.FROM):
     548                    db = self._parse_id_var()
     549                elif self._match(TokenType.DOT):
     550                    db = target_id
     551                    target_id = self._parse_id_var()
     552
     553            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     554
     555            like = self._parse_string() if self._match_text_seq("LIKE") else None
     556            where = self._parse_where()
     557
     558            if this == "PROFILE":
     559                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     560                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     561                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     562                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     563            else:
     564                types, query = None, None
     565                offset, limit = self._parse_oldstyle_limit()
     566
     567            mutex = True if self._match_text_seq("MUTEX") else None
     568            mutex = False if self._match_text_seq("STATUS") else mutex
     569
     570            return self.expression(
     571                exp.Show,
     572                this=this,
     573                target=target_id,
     574                full=full,
     575                log=log,
     576                position=position,
     577                db=db,
     578                channel=channel,
     579                like=like,
     580                where=where,
     581                types=types,
     582                query=query,
     583                offset=offset,
     584                limit=limit,
     585                mutex=mutex,
     586                **{"global": global_},  # type: ignore
     587            )
     588
     589        def _parse_oldstyle_limit(
     590            self,
     591        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     592            limit = None
     593            offset = None
     594            if self._match_text_seq("LIMIT"):
     595                parts = self._parse_csv(self._parse_number)
     596                if len(parts) == 1:
     597                    limit = parts[0]
     598                elif len(parts) == 2:
     599                    limit = parts[1]
     600                    offset = parts[0]
     601
     602            return offset, limit
     603
     604        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     605            this = self._parse_string() or self._parse_unquoted_field()
     606            return self.expression(exp.SetItem, this=this, kind=kind)
     607
     608        def _parse_set_item_names(self) -> exp.Expression:
     609            charset = self._parse_string() or self._parse_unquoted_field()
     610            if self._match_text_seq("COLLATE"):
     611                collate = self._parse_string() or self._parse_unquoted_field()
     612            else:
     613                collate = None
     614
     615            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     616
     617        def _parse_type(
     618            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     619        ) -> t.Optional[exp.Expression]:
     620            # mysql binary is special and can work anywhere, even in order by operations
     621            # it operates like a no paren func
     622            if self._match(TokenType.BINARY, advance=False):
     623                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     624
     625                if isinstance(data_type, exp.DataType):
     626                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     627
     628            return super()._parse_type(
     629                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     630            )
     631
     632        def _parse_chr(self) -> t.Optional[exp.Expression]:
     633            expressions = self._parse_csv(self._parse_assignment)
     634            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
     635
     636            if len(expressions) > 1:
     637                kwargs["expressions"] = expressions[1:]
     638
     639            if self._match(TokenType.USING):
     640                kwargs["charset"] = self._parse_var()
     641
     642            return self.expression(exp.Chr, **kwargs)
     643
     644        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     645            def concat_exprs(
     646                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     647            ) -> exp.Expression:
     648                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     649                    concat_exprs = [
     650                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     651                    ]
     652                    node.set("expressions", concat_exprs)
     653                    return node
     654                if len(exprs) == 1:
     655                    return exprs[0]
     656                return self.expression(exp.Concat, expressions=args, safe=True)
     657
     658            args = self._parse_csv(self._parse_lambda)
     659
     660            if args:
     661                order = args[-1] if isinstance(args[-1], exp.Order) else None
     662
     663                if order:
     664                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     665                    # remove 'expr' from exp.Order and add it back to args
     666                    args[-1] = order.this
     667                    order.set("this", concat_exprs(order.this, args))
     668
     669                this = order or concat_exprs(args[0], args)
     670            else:
     671                this = None
     672
     673            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     674
     675            return self.expression(exp.GroupConcat, this=this, separator=separator)
     676
     677    class Generator(generator.Generator):
     678        INTERVAL_ALLOWS_PLURAL_FORM = False
     679        LOCKING_READS_SUPPORTED = True
     680        NULL_ORDERING_SUPPORTED = None
     681        JOIN_HINTS = False
     682        TABLE_HINTS = True
     683        DUPLICATE_KEY_UPDATE_WITH_SET = False
     684        QUERY_HINT_SEP = " "
     685        VALUES_AS_TABLE = False
     686        NVL2_SUPPORTED = False
     687        LAST_DAY_SUPPORTS_DATE_PART = False
     688        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     689        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     690        JSON_KEY_VALUE_PAIR_SEP = ","
     691        SUPPORTS_TO_NUMBER = False
     692        PARSE_JSON_NAME = None
     693        PAD_FILL_PATTERN_IS_REQUIRED = True
     694
     695        TRANSFORMS = {
     696            **generator.Generator.TRANSFORMS,
     697            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     698            exp.CurrentDate: no_paren_current_date_sql,
     699            exp.DateDiff: _remove_ts_or_ds_to_date(
     700                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     701            ),
     702            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     703            exp.DateStrToDate: datestrtodate_sql,
     704            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     705            exp.DateTrunc: _date_trunc_sql,
     706            exp.Day: _remove_ts_or_ds_to_date(),
     707            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     708            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     709            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     710            exp.GroupConcat: lambda self,
     711            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     712            exp.ILike: no_ilike_sql,
     713            exp.JSONExtractScalar: arrow_json_extract_sql,
     714            exp.Max: max_or_greatest,
     715            exp.Min: min_or_least,
     716            exp.Month: _remove_ts_or_ds_to_date(),
     717            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     718            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     719            exp.Pivot: no_pivot_sql,
     720            exp.Select: transforms.preprocess(
     721                [
     722                    transforms.eliminate_distinct_on,
     723                    transforms.eliminate_semi_and_anti_joins,
     724                    transforms.eliminate_qualify,
     725                    transforms.eliminate_full_outer_join,
     726                ]
     727            ),
     728            exp.StrPosition: strposition_to_locate_sql,
     729            exp.StrToDate: _str_to_date_sql,
     730            exp.StrToTime: _str_to_date_sql,
     731            exp.Stuff: rename_func("INSERT"),
     732            exp.TableSample: no_tablesample_sql,
     733            exp.TimeFromParts: rename_func("MAKETIME"),
     734            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     735            exp.TimestampDiff: lambda self, e: self.func(
     736                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     737            ),
     738            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     739            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     740            exp.TimeStrToTime: lambda self, e: self.sql(
     741                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
     742            ),
     743            exp.TimeToStr: _remove_ts_or_ds_to_date(
     744                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     745            ),
     746            exp.Trim: _trim_sql,
     747            exp.TryCast: no_trycast_sql,
     748            exp.TsOrDsAdd: date_add_sql("ADD"),
     749            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     750            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     751            exp.UnixToTime: _unix_to_time_sql,
     752            exp.Week: _remove_ts_or_ds_to_date(),
     753            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     754            exp.Year: _remove_ts_or_ds_to_date(),
     755        }
     756
     757        UNSIGNED_TYPE_MAPPING = {
     758            exp.DataType.Type.UBIGINT: "BIGINT",
     759            exp.DataType.Type.UINT: "INT",
     760            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     761            exp.DataType.Type.USMALLINT: "SMALLINT",
     762            exp.DataType.Type.UTINYINT: "TINYINT",
     763            exp.DataType.Type.UDECIMAL: "DECIMAL",
     764        }
     765
     766        TIMESTAMP_TYPE_MAPPING = {
     767            exp.DataType.Type.TIMESTAMP: "DATETIME",
     768            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     769            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     770        }
     771
     772        TYPE_MAPPING = {
     773            **generator.Generator.TYPE_MAPPING,
     774            **UNSIGNED_TYPE_MAPPING,
     775            **TIMESTAMP_TYPE_MAPPING,
     776        }
     777
     778        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     779        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     780        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     781        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     782        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     783        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     784
     785        PROPERTIES_LOCATION = {
     786            **generator.Generator.PROPERTIES_LOCATION,
     787            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     788            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     789        }
     790
     791        LIMIT_FETCH = "LIMIT"
     792
     793        LIMIT_ONLY_LITERALS = True
     794
     795        CHAR_CAST_MAPPING = dict.fromkeys(
     796            (
     797                exp.DataType.Type.LONGTEXT,
     798                exp.DataType.Type.LONGBLOB,
     799                exp.DataType.Type.MEDIUMBLOB,
     800                exp.DataType.Type.MEDIUMTEXT,
     801                exp.DataType.Type.TEXT,
     802                exp.DataType.Type.TINYBLOB,
     803                exp.DataType.Type.TINYTEXT,
     804                exp.DataType.Type.VARCHAR,
     805            ),
     806            "CHAR",
     807        )
     808        SIGNED_CAST_MAPPING = dict.fromkeys(
     809            (
     810                exp.DataType.Type.BIGINT,
     811                exp.DataType.Type.BOOLEAN,
     812                exp.DataType.Type.INT,
     813                exp.DataType.Type.SMALLINT,
     814                exp.DataType.Type.TINYINT,
     815                exp.DataType.Type.MEDIUMINT,
     816            ),
     817            "SIGNED",
     818        )
     819
     820        # MySQL doesn't support many datatypes in cast.
     821        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     822        CAST_MAPPING = {
     823            **CHAR_CAST_MAPPING,
     824            **SIGNED_CAST_MAPPING,
     825            exp.DataType.Type.UBIGINT: "UNSIGNED",
     826        }
     827
     828        TIMESTAMP_FUNC_TYPES = {
     829            exp.DataType.Type.TIMESTAMPTZ,
     830            exp.DataType.Type.TIMESTAMPLTZ,
     831        }
     832
     833        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     834        RESERVED_KEYWORDS = {
     835            "accessible",
     836            "add",
     837            "all",
     838            "alter",
     839            "analyze",
     840            "and",
     841            "as",
     842            "asc",
     843            "asensitive",
     844            "before",
     845            "between",
     846            "bigint",
     847            "binary",
     848            "blob",
     849            "both",
     850            "by",
     851            "call",
     852            "cascade",
     853            "case",
     854            "change",
     855            "char",
     856            "character",
     857            "check",
     858            "collate",
     859            "column",
     860            "condition",
     861            "constraint",
     862            "continue",
     863            "convert",
     864            "create",
     865            "cross",
     866            "cube",
     867            "cume_dist",
     868            "current_date",
     869            "current_time",
     870            "current_timestamp",
     871            "current_user",
     872            "cursor",
     873            "database",
     874            "databases",
     875            "day_hour",
     876            "day_microsecond",
     877            "day_minute",
     878            "day_second",
     879            "dec",
     880            "decimal",
     881            "declare",
     882            "default",
     883            "delayed",
     884            "delete",
     885            "dense_rank",
     886            "desc",
     887            "describe",
     888            "deterministic",
     889            "distinct",
     890            "distinctrow",
     891            "div",
     892            "double",
     893            "drop",
     894            "dual",
     895            "each",
     896            "else",
     897            "elseif",
     898            "empty",
     899            "enclosed",
     900            "escaped",
     901            "except",
     902            "exists",
     903            "exit",
     904            "explain",
     905            "false",
     906            "fetch",
     907            "first_value",
     908            "float",
     909            "float4",
     910            "float8",
     911            "for",
     912            "force",
     913            "foreign",
     914            "from",
     915            "fulltext",
     916            "function",
     917            "generated",
     918            "get",
     919            "grant",
     920            "group",
     921            "grouping",
     922            "groups",
     923            "having",
     924            "high_priority",
     925            "hour_microsecond",
     926            "hour_minute",
     927            "hour_second",
     928            "if",
     929            "ignore",
     930            "in",
     931            "index",
     932            "infile",
     933            "inner",
     934            "inout",
     935            "insensitive",
     936            "insert",
     937            "int",
     938            "int1",
     939            "int2",
     940            "int3",
     941            "int4",
     942            "int8",
     943            "integer",
     944            "intersect",
     945            "interval",
     946            "into",
     947            "io_after_gtids",
     948            "io_before_gtids",
     949            "is",
     950            "iterate",
     951            "join",
     952            "json_table",
     953            "key",
     954            "keys",
     955            "kill",
     956            "lag",
     957            "last_value",
     958            "lateral",
     959            "lead",
     960            "leading",
     961            "leave",
     962            "left",
     963            "like",
     964            "limit",
     965            "linear",
     966            "lines",
     967            "load",
     968            "localtime",
     969            "localtimestamp",
     970            "lock",
     971            "long",
     972            "longblob",
     973            "longtext",
     974            "loop",
     975            "low_priority",
     976            "master_bind",
     977            "master_ssl_verify_server_cert",
     978            "match",
     979            "maxvalue",
     980            "mediumblob",
     981            "mediumint",
     982            "mediumtext",
     983            "middleint",
     984            "minute_microsecond",
     985            "minute_second",
     986            "mod",
     987            "modifies",
     988            "natural",
     989            "not",
     990            "no_write_to_binlog",
     991            "nth_value",
     992            "ntile",
     993            "null",
     994            "numeric",
     995            "of",
     996            "on",
     997            "optimize",
     998            "optimizer_costs",
     999            "option",
    1000            "optionally",
    1001            "or",
    1002            "order",
    1003            "out",
    1004            "outer",
    1005            "outfile",
    1006            "over",
    1007            "partition",
    1008            "percent_rank",
    1009            "precision",
    1010            "primary",
    1011            "procedure",
    1012            "purge",
    1013            "range",
    1014            "rank",
    1015            "read",
    1016            "reads",
    1017            "read_write",
    1018            "real",
    1019            "recursive",
    1020            "references",
    1021            "regexp",
    1022            "release",
    1023            "rename",
    1024            "repeat",
    1025            "replace",
    1026            "require",
    1027            "resignal",
    1028            "restrict",
    1029            "return",
    1030            "revoke",
    1031            "right",
    1032            "rlike",
    1033            "row",
    1034            "rows",
    1035            "row_number",
    1036            "schema",
    1037            "schemas",
    1038            "second_microsecond",
    1039            "select",
    1040            "sensitive",
    1041            "separator",
    1042            "set",
    1043            "show",
    1044            "signal",
    1045            "smallint",
    1046            "spatial",
    1047            "specific",
    1048            "sql",
    1049            "sqlexception",
    1050            "sqlstate",
    1051            "sqlwarning",
    1052            "sql_big_result",
    1053            "sql_calc_found_rows",
    1054            "sql_small_result",
    1055            "ssl",
    1056            "starting",
    1057            "stored",
    1058            "straight_join",
    1059            "system",
    1060            "table",
    1061            "terminated",
    1062            "then",
    1063            "tinyblob",
    1064            "tinyint",
    1065            "tinytext",
    1066            "to",
    1067            "trailing",
    1068            "trigger",
    1069            "true",
    1070            "undo",
    1071            "union",
    1072            "unique",
    1073            "unlock",
    1074            "unsigned",
    1075            "update",
    1076            "usage",
    1077            "use",
    1078            "using",
    1079            "utc_date",
    1080            "utc_time",
    1081            "utc_timestamp",
    1082            "values",
    1083            "varbinary",
    1084            "varchar",
    1085            "varcharacter",
    1086            "varying",
    1087            "virtual",
    1088            "when",
    1089            "where",
    1090            "while",
    1091            "window",
    1092            "with",
    1093            "write",
    1094            "xor",
    1095            "year_month",
    1096            "zerofill",
    1097        }
    1098
    1099        def array_sql(self, expression: exp.Array) -> str:
    1100            self.unsupported("Arrays are not supported by MySQL")
    1101            return self.function_fallback_sql(expression)
    1102
    1103        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1104            self.unsupported("Array operations are not supported by MySQL")
    1105            return self.function_fallback_sql(expression)
    1106
    1107        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1108            return self.func("CONCAT", *expression.flatten())
    1109
    1110        def extract_sql(self, expression: exp.Extract) -> str:
    1111            unit = expression.name
    1112            if unit and unit.lower() == "epoch":
    1113                return self.func("UNIX_TIMESTAMP", expression.expression)
    1114
    1115            return super().extract_sql(expression)
    1116
    1117        def datatype_sql(self, expression: exp.DataType) -> str:
    1118            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1119            result = super().datatype_sql(expression)
    1120            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1121                result = f"{result} UNSIGNED"
    1122            return result
    1123
    1124        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1125            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1126
    1127        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1128            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1129                return self.func("TIMESTAMP", expression.this)
    1130
    1131            to = self.CAST_MAPPING.get(expression.to.this)
    1132
    1133            if to:
    1134                expression.to.set("this", to)
    1135            return super().cast_sql(expression)
    1136
    1137        def show_sql(self, expression: exp.Show) -> str:
    1138            this = f" {expression.name}"
    1139            full = " FULL" if expression.args.get("full") else ""
    1140            global_ = " GLOBAL" if expression.args.get("global") else ""
    1141
    1142            target = self.sql(expression, "target")
    1143            target = f" {target}" if target else ""
    1144            if expression.name in ("COLUMNS", "INDEX"):
    1145                target = f" FROM{target}"
    1146            elif expression.name == "GRANTS":
    1147                target = f" FOR{target}"
    1148
    1149            db = self._prefixed_sql("FROM", expression, "db")
    1150
    1151            like = self._prefixed_sql("LIKE", expression, "like")
    1152            where = self.sql(expression, "where")
    1153
    1154            types = self.expressions(expression, key="types")
    1155            types = f" {types}" if types else types
    1156            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1157
    1158            if expression.name == "PROFILE":
    1159                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1160                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1161            else:
    1162                offset = ""
    1163                limit = self._oldstyle_limit_sql(expression)
    1164
    1165            log = self._prefixed_sql("IN", expression, "log")
    1166            position = self._prefixed_sql("FROM", expression, "position")
    1167
    1168            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1169
    1170            if expression.name == "ENGINE":
    1171                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1172            else:
    1173                mutex_or_status = ""
    1174
    1175            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1176
    1177        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1178            dtype = self.sql(expression, "dtype")
    1179            if not dtype:
    1180                return super().altercolumn_sql(expression)
    1181
    1182            this = self.sql(expression, "this")
    1183            return f"MODIFY COLUMN {this} {dtype}"
    1184
    1185        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1186            sql = self.sql(expression, arg)
    1187            return f" {prefix} {sql}" if sql else ""
    1188
    1189        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1190            limit = self.sql(expression, "limit")
    1191            offset = self.sql(expression, "offset")
    1192            if limit:
    1193                limit_offset = f"{offset}, {limit}" if offset else limit
    1194                return f" LIMIT {limit_offset}"
    1195            return ""
    1196
    1197        def chr_sql(self, expression: exp.Chr) -> str:
    1198            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1199            charset = expression.args.get("charset")
    1200            using = f" USING {self.sql(charset)}" if charset else ""
    1201            return f"CHAR({this}{using})"
    1202
    1203        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1204            unit = expression.args.get("unit")
    1205
    1206            # Pick an old-enough date to avoid negative timestamp diffs
    1207            start_ts = "'0000-01-01 00:00:00'"
    1208
    1209            # Source: https://stackoverflow.com/a/32955740
    1210            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1211            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1212            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1213
    1214            return self.sql(dateadd)

TIME_SPECIFIERS = {'h', 'H', 'i', 'l', 's', 'k', 'f', 'I', 'T', 'S', 'r', 'p'}
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            "KEY": TokenType.KEY,
     207            "LOCK TABLES": TokenType.COMMAND,
     208            "LONGBLOB": TokenType.LONGBLOB,
     209            "LONGTEXT": TokenType.LONGTEXT,
     210            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
     211            "TINYBLOB": TokenType.TINYBLOB,
     212            "TINYTEXT": TokenType.TINYTEXT,
     213            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
     214            "MEDIUMINT": TokenType.MEDIUMINT,
     215            "MEMBER OF": TokenType.MEMBER_OF,
     216            "SEPARATOR": TokenType.SEPARATOR,
     217            "START": TokenType.BEGIN,
     218            "SIGNED": TokenType.BIGINT,
     219            "SIGNED INTEGER": TokenType.BIGINT,
     220            "UNLOCK TABLES": TokenType.COMMAND,
     221            "UNSIGNED": TokenType.UBIGINT,
     222            "UNSIGNED INTEGER": TokenType.UBIGINT,
     223            "YEAR": TokenType.YEAR,
     224            "_ARMSCII8": TokenType.INTRODUCER,
     225            "_ASCII": TokenType.INTRODUCER,
     226            "_BIG5": TokenType.INTRODUCER,
     227            "_BINARY": TokenType.INTRODUCER,
     228            "_CP1250": TokenType.INTRODUCER,
     229            "_CP1251": TokenType.INTRODUCER,
     230            "_CP1256": TokenType.INTRODUCER,
     231            "_CP1257": TokenType.INTRODUCER,
     232            "_CP850": TokenType.INTRODUCER,
     233            "_CP852": TokenType.INTRODUCER,
     234            "_CP866": TokenType.INTRODUCER,
     235            "_CP932": TokenType.INTRODUCER,
     236            "_DEC8": TokenType.INTRODUCER,
     237            "_EUCJPMS": TokenType.INTRODUCER,
     238            "_EUCKR": TokenType.INTRODUCER,
     239            "_GB18030": TokenType.INTRODUCER,
     240            "_GB2312": TokenType.INTRODUCER,
     241            "_GBK": TokenType.INTRODUCER,
     242            "_GEOSTD8": TokenType.INTRODUCER,
     243            "_GREEK": TokenType.INTRODUCER,
     244            "_HEBREW": TokenType.INTRODUCER,
     245            "_HP8": TokenType.INTRODUCER,
     246            "_KEYBCS2": TokenType.INTRODUCER,
     247            "_KOI8R": TokenType.INTRODUCER,
     248            "_KOI8U": TokenType.INTRODUCER,
     249            "_LATIN1": TokenType.INTRODUCER,
     250            "_LATIN2": TokenType.INTRODUCER,
     251            "_LATIN5": TokenType.INTRODUCER,
     252            "_LATIN7": TokenType.INTRODUCER,
     253            "_MACCE": TokenType.INTRODUCER,
     254            "_MACROMAN": TokenType.INTRODUCER,
     255            "_SJIS": TokenType.INTRODUCER,
     256            "_SWE7": TokenType.INTRODUCER,
     257            "_TIS620": TokenType.INTRODUCER,
     258            "_UCS2": TokenType.INTRODUCER,
     259            "_UJIS": TokenType.INTRODUCER,
     260            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
     261            "_UTF8": TokenType.INTRODUCER,
     262            "_UTF16": TokenType.INTRODUCER,
     263            "_UTF16LE": TokenType.INTRODUCER,
     264            "_UTF32": TokenType.INTRODUCER,
     265            "_UTF8MB3": TokenType.INTRODUCER,
     266            "_UTF8MB4": TokenType.INTRODUCER,
     267            "@@": TokenType.SESSION_PARAMETER,
     268        }
     269
     270        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
     271
     272    class Parser(parser.Parser):
     273        FUNC_TOKENS = {
     274            *parser.Parser.FUNC_TOKENS,
     275            TokenType.DATABASE,
     276            TokenType.SCHEMA,
     277            TokenType.VALUES,
     278        }
     279
     280        CONJUNCTION = {
     281            **parser.Parser.CONJUNCTION,
     282            TokenType.DAMP: exp.And,
     283            TokenType.XOR: exp.Xor,
     284        }
     285
     286        DISJUNCTION = {
     287            **parser.Parser.DISJUNCTION,
     288            TokenType.DPIPE: exp.Or,
     289        }
     290
     291        TABLE_ALIAS_TOKENS = (
     292            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     293        )
     294
     295        RANGE_PARSERS = {
     296            **parser.Parser.RANGE_PARSERS,
     297            TokenType.MEMBER_OF: lambda self, this: self.expression(
     298                exp.JSONArrayContains,
     299                this=this,
     300                expression=self._parse_wrapped(self._parse_expression),
     301            ),
     302        }
     303
     304        FUNCTIONS = {
     305            **parser.Parser.FUNCTIONS,
     306            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
     307            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     308            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
     309            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     310            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     311            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     312            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     313            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     314            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
     315            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     316            "ISNULL": isnull_to_is_null,
     317            "LOCATE": locate_to_strposition,
     318            "MAKETIME": exp.TimeFromParts.from_arg_list,
     319            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     320            "MONTHNAME": lambda args: exp.TimeToStr(
     321                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     322                format=exp.Literal.string("%B"),
     323            ),
     324            "STR_TO_DATE": _str_to_date,
     325            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
     326            "TO_DAYS": lambda args: exp.paren(
     327                exp.DateDiff(
     328                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     329                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
     330                    unit=exp.var("DAY"),
     331                )
     332                + 1
     333            ),
     334            "WEEK": lambda args: exp.Week(
     335                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
     336            ),
     337            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     338            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     339        }
     340
     341        FUNCTION_PARSERS = {
     342            **parser.Parser.FUNCTION_PARSERS,
     343            "CHAR": lambda self: self._parse_chr(),
     344            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     345            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     346            "VALUES": lambda self: self.expression(
     347                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     348            ),
     349        }
     350
     351        STATEMENT_PARSERS = {
     352            **parser.Parser.STATEMENT_PARSERS,
     353            TokenType.SHOW: lambda self: self._parse_show(),
     354        }
     355
     356        SHOW_PARSERS = {
     357            "BINARY LOGS": _show_parser("BINARY LOGS"),
     358            "MASTER LOGS": _show_parser("BINARY LOGS"),
     359            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     360            "CHARACTER SET": _show_parser("CHARACTER SET"),
     361            "CHARSET": _show_parser("CHARACTER SET"),
     362            "COLLATION": _show_parser("COLLATION"),
     363            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     364            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     365            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     366            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     367            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     368            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     369            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     370            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     371            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     372            "DATABASES": _show_parser("DATABASES"),
     373            "SCHEMAS": _show_parser("DATABASES"),
     374            "ENGINE": _show_parser("ENGINE", target=True),
     375            "STORAGE ENGINES": _show_parser("ENGINES"),
     376            "ENGINES": _show_parser("ENGINES"),
     377            "ERRORS": _show_parser("ERRORS"),
     378            "EVENTS": _show_parser("EVENTS"),
     379            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     380            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     381            "GRANTS": _show_parser("GRANTS", target="FOR"),
     382            "INDEX": _show_parser("INDEX", target="FROM"),
     383            "MASTER STATUS": _show_parser("MASTER STATUS"),
     384            "OPEN TABLES": _show_parser("OPEN TABLES"),
     385            "PLUGINS": _show_parser("PLUGINS"),
     386            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     387            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     388            "PRIVILEGES": _show_parser("PRIVILEGES"),
     389            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     390            "PROCESSLIST": _show_parser("PROCESSLIST"),
     391            "PROFILE": _show_parser("PROFILE"),
     392            "PROFILES": _show_parser("PROFILES"),
     393            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     394            "REPLICAS": _show_parser("REPLICAS"),
     395            "SLAVE HOSTS": _show_parser("REPLICAS"),
     396            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     397            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     398            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     399            "SESSION STATUS": _show_parser("STATUS"),
     400            "STATUS": _show_parser("STATUS"),
     401            "TABLE STATUS": _show_parser("TABLE STATUS"),
     402            "FULL TABLES": _show_parser("TABLES", full=True),
     403            "TABLES": _show_parser("TABLES"),
     404            "TRIGGERS": _show_parser("TRIGGERS"),
     405            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     406            "SESSION VARIABLES": _show_parser("VARIABLES"),
     407            "VARIABLES": _show_parser("VARIABLES"),
     408            "WARNINGS": _show_parser("WARNINGS"),
     409        }
     410
     411        PROPERTY_PARSERS = {
     412            **parser.Parser.PROPERTY_PARSERS,
     413            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     414        }
     415
     416        SET_PARSERS = {
     417            **parser.Parser.SET_PARSERS,
     418            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     419            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     420            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     421            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     422            "NAMES": lambda self: self._parse_set_item_names(),
     423        }
     424
     425        CONSTRAINT_PARSERS = {
     426            **parser.Parser.CONSTRAINT_PARSERS,
     427            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     428            "INDEX": lambda self: self._parse_index_constraint(),
     429            "KEY": lambda self: self._parse_index_constraint(),
     430            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     431        }
     432
     433        ALTER_PARSERS = {
     434            **parser.Parser.ALTER_PARSERS,
     435            "MODIFY": lambda self: self._parse_alter_table_alter(),
     436        }
     437
     438        SCHEMA_UNNAMED_CONSTRAINTS = {
     439            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     440            "FULLTEXT",
     441            "INDEX",
     442            "KEY",
     443            "SPATIAL",
     444        }
     445
     446        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     447            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     448            "BLOCK": ("IO",),
     449            "CONTEXT": ("SWITCHES",),
     450            "PAGE": ("FAULTS",),
     451        }
     452
     453        TYPE_TOKENS = {
     454            *parser.Parser.TYPE_TOKENS,
     455            TokenType.SET,
     456        }
     457
     458        ENUM_TYPE_TOKENS = {
     459            *parser.Parser.ENUM_TYPE_TOKENS,
     460            TokenType.SET,
     461        }
     462
     463        LOG_DEFAULTS_TO_LN = True
     464        STRING_ALIASES = True
     465        VALUES_FOLLOWED_BY_PAREN = False
     466        SUPPORTS_PARTITION_SELECTION = True
     467
     468        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     469            this = self._parse_id_var()
     470            if not self._match(TokenType.L_PAREN):
     471                return this
     472
     473            expression = self._parse_number()
     474            self._match_r_paren()
     475            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     476
     477        def _parse_index_constraint(
     478            self, kind: t.Optional[str] = None
     479        ) -> exp.IndexColumnConstraint:
     480            if kind:
     481                self._match_texts(("INDEX", "KEY"))
     482
     483            this = self._parse_id_var(any_token=False)
     484            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     485            expressions = self._parse_wrapped_csv(self._parse_ordered)
     486
     487            options = []
     488            while True:
     489                if self._match_text_seq("KEY_BLOCK_SIZE"):
     490                    self._match(TokenType.EQ)
     491                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     492                elif self._match(TokenType.USING):
     493                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     494                elif self._match_text_seq("WITH", "PARSER"):
     495                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     496                elif self._match(TokenType.COMMENT):
     497                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     498                elif self._match_text_seq("VISIBLE"):
     499                    opt = exp.IndexConstraintOption(visible=True)
     500                elif self._match_text_seq("INVISIBLE"):
     501                    opt = exp.IndexConstraintOption(visible=False)
     502                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     503                    self._match(TokenType.EQ)
     504                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     505                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     506                    self._match(TokenType.EQ)
     507                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     508                else:
     509                    opt = None
     510
     511                if not opt:
     512                    break
     513
     514                options.append(opt)
     515
     516            return self.expression(
     517                exp.IndexColumnConstraint,
     518                this=this,
     519                expressions=expressions,
     520                kind=kind,
     521                index_type=index_type,
     522                options=options,
     523            )
     524
     525        def _parse_show_mysql(
     526            self,
     527            this: str,
     528            target: bool | str = False,
     529            full: t.Optional[bool] = None,
     530            global_: t.Optional[bool] = None,
     531        ) -> exp.Show:
     532            if target:
     533                if isinstance(target, str):
     534                    self._match_text_seq(target)
     535                target_id = self._parse_id_var()
     536            else:
     537                target_id = None
     538
     539            log = self._parse_string() if self._match_text_seq("IN") else None
     540
     541            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     542                position = self._parse_number() if self._match_text_seq("FROM") else None
     543                db = None
     544            else:
     545                position = None
     546                db = None
     547
     548                if self._match(TokenType.FROM):
     549                    db = self._parse_id_var()
     550                elif self._match(TokenType.DOT):
     551                    db = target_id
     552                    target_id = self._parse_id_var()
     553
     554            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     555
     556            like = self._parse_string() if self._match_text_seq("LIKE") else None
     557            where = self._parse_where()
     558
     559            if this == "PROFILE":
     560                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     561                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     562                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     563                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     564            else:
     565                types, query = None, None
     566                offset, limit = self._parse_oldstyle_limit()
     567
     568            mutex = True if self._match_text_seq("MUTEX") else None
     569            mutex = False if self._match_text_seq("STATUS") else mutex
     570
     571            return self.expression(
     572                exp.Show,
     573                this=this,
     574                target=target_id,
     575                full=full,
     576                log=log,
     577                position=position,
     578                db=db,
     579                channel=channel,
     580                like=like,
     581                where=where,
     582                types=types,
     583                query=query,
     584                offset=offset,
     585                limit=limit,
     586                mutex=mutex,
     587                **{"global": global_},  # type: ignore
     588            )
     589
     590        def _parse_oldstyle_limit(
     591            self,
     592        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     593            limit = None
     594            offset = None
     595            if self._match_text_seq("LIMIT"):
     596                parts = self._parse_csv(self._parse_number)
     597                if len(parts) == 1:
     598                    limit = parts[0]
     599                elif len(parts) == 2:
     600                    limit = parts[1]
     601                    offset = parts[0]
     602
     603            return offset, limit
     604
     605        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     606            this = self._parse_string() or self._parse_unquoted_field()
     607            return self.expression(exp.SetItem, this=this, kind=kind)
     608
     609        def _parse_set_item_names(self) -> exp.Expression:
     610            charset = self._parse_string() or self._parse_unquoted_field()
     611            if self._match_text_seq("COLLATE"):
     612                collate = self._parse_string() or self._parse_unquoted_field()
     613            else:
     614                collate = None
     615
     616            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     617
     618        def _parse_type(
     619            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     620        ) -> t.Optional[exp.Expression]:
     621            # mysql binary is special and can work anywhere, even in order by operations
     622            # it operates like a no paren func
     623            if self._match(TokenType.BINARY, advance=False):
     624                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     625
     626                if isinstance(data_type, exp.DataType):
     627                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     628
     629            return super()._parse_type(
     630                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     631            )
     632
     633        def _parse_chr(self) -> t.Optional[exp.Expression]:
     634            expressions = self._parse_csv(self._parse_assignment)
     635            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
     636
     637            if len(expressions) > 1:
     638                kwargs["expressions"] = expressions[1:]
     639
     640            if self._match(TokenType.USING):
     641                kwargs["charset"] = self._parse_var()
     642
     643            return self.expression(exp.Chr, **kwargs)
     644
     645        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     646            def concat_exprs(
     647                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     648            ) -> exp.Expression:
     649                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     650                    concat_exprs = [
     651                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     652                    ]
     653                    node.set("expressions", concat_exprs)
     654                    return node
     655                if len(exprs) == 1:
     656                    return exprs[0]
     657                return self.expression(exp.Concat, expressions=args, safe=True)
     658
     659            args = self._parse_csv(self._parse_lambda)
     660
     661            if args:
     662                order = args[-1] if isinstance(args[-1], exp.Order) else None
     663
     664                if order:
     665                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     666                    # remove 'expr' from exp.Order and add it back to args
     667                    args[-1] = order.this
     668                    order.set("this", concat_exprs(order.this, args))
     669
     670                this = order or concat_exprs(args[0], args)
     671            else:
     672                this = None
     673
     674            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     675
     676            return self.expression(exp.GroupConcat, this=this, separator=separator)
     677
     678    class Generator(generator.Generator):
     679        INTERVAL_ALLOWS_PLURAL_FORM = False
     680        LOCKING_READS_SUPPORTED = True
     681        NULL_ORDERING_SUPPORTED = None
     682        JOIN_HINTS = False
     683        TABLE_HINTS = True
     684        DUPLICATE_KEY_UPDATE_WITH_SET = False
     685        QUERY_HINT_SEP = " "
     686        VALUES_AS_TABLE = False
     687        NVL2_SUPPORTED = False
     688        LAST_DAY_SUPPORTS_DATE_PART = False
     689        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     690        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     691        JSON_KEY_VALUE_PAIR_SEP = ","
     692        SUPPORTS_TO_NUMBER = False
     693        PARSE_JSON_NAME = None
     694        PAD_FILL_PATTERN_IS_REQUIRED = True
     695
     696        TRANSFORMS = {
     697            **generator.Generator.TRANSFORMS,
     698            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     699            exp.CurrentDate: no_paren_current_date_sql,
     700            exp.DateDiff: _remove_ts_or_ds_to_date(
     701                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     702            ),
     703            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     704            exp.DateStrToDate: datestrtodate_sql,
     705            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     706            exp.DateTrunc: _date_trunc_sql,
     707            exp.Day: _remove_ts_or_ds_to_date(),
     708            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     709            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     710            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     711            exp.GroupConcat: lambda self,
     712            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     713            exp.ILike: no_ilike_sql,
     714            exp.JSONExtractScalar: arrow_json_extract_sql,
     715            exp.Max: max_or_greatest,
     716            exp.Min: min_or_least,
     717            exp.Month: _remove_ts_or_ds_to_date(),
     718            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     719            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     720            exp.Pivot: no_pivot_sql,
     721            exp.Select: transforms.preprocess(
     722                [
     723                    transforms.eliminate_distinct_on,
     724                    transforms.eliminate_semi_and_anti_joins,
     725                    transforms.eliminate_qualify,
     726                    transforms.eliminate_full_outer_join,
     727                ]
     728            ),
     729            exp.StrPosition: strposition_to_locate_sql,
     730            exp.StrToDate: _str_to_date_sql,
     731            exp.StrToTime: _str_to_date_sql,
     732            exp.Stuff: rename_func("INSERT"),
     733            exp.TableSample: no_tablesample_sql,
     734            exp.TimeFromParts: rename_func("MAKETIME"),
     735            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     736            exp.TimestampDiff: lambda self, e: self.func(
     737                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     738            ),
     739            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     740            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     741            exp.TimeStrToTime: lambda self, e: self.sql(
     742                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
     743            ),
     744            exp.TimeToStr: _remove_ts_or_ds_to_date(
     745                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     746            ),
     747            exp.Trim: _trim_sql,
     748            exp.TryCast: no_trycast_sql,
     749            exp.TsOrDsAdd: date_add_sql("ADD"),
     750            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     751            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     752            exp.UnixToTime: _unix_to_time_sql,
     753            exp.Week: _remove_ts_or_ds_to_date(),
     754            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     755            exp.Year: _remove_ts_or_ds_to_date(),
     756        }
     757
     758        UNSIGNED_TYPE_MAPPING = {
     759            exp.DataType.Type.UBIGINT: "BIGINT",
     760            exp.DataType.Type.UINT: "INT",
     761            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     762            exp.DataType.Type.USMALLINT: "SMALLINT",
     763            exp.DataType.Type.UTINYINT: "TINYINT",
     764            exp.DataType.Type.UDECIMAL: "DECIMAL",
     765        }
     766
     767        TIMESTAMP_TYPE_MAPPING = {
     768            exp.DataType.Type.TIMESTAMP: "DATETIME",
     769            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     770            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     771        }
     772
     773        TYPE_MAPPING = {
     774            **generator.Generator.TYPE_MAPPING,
     775            **UNSIGNED_TYPE_MAPPING,
     776            **TIMESTAMP_TYPE_MAPPING,
     777        }
     778
     779        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     780        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     781        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     782        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     783        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     784        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     785
     786        PROPERTIES_LOCATION = {
     787            **generator.Generator.PROPERTIES_LOCATION,
     788            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     789            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     790        }
     791
     792        LIMIT_FETCH = "LIMIT"
     793
     794        LIMIT_ONLY_LITERALS = True
     795
     796        CHAR_CAST_MAPPING = dict.fromkeys(
     797            (
     798                exp.DataType.Type.LONGTEXT,
     799                exp.DataType.Type.LONGBLOB,
     800                exp.DataType.Type.MEDIUMBLOB,
     801                exp.DataType.Type.MEDIUMTEXT,
     802                exp.DataType.Type.TEXT,
     803                exp.DataType.Type.TINYBLOB,
     804                exp.DataType.Type.TINYTEXT,
     805                exp.DataType.Type.VARCHAR,
     806            ),
     807            "CHAR",
     808        )
     809        SIGNED_CAST_MAPPING = dict.fromkeys(
     810            (
     811                exp.DataType.Type.BIGINT,
     812                exp.DataType.Type.BOOLEAN,
     813                exp.DataType.Type.INT,
     814                exp.DataType.Type.SMALLINT,
     815                exp.DataType.Type.TINYINT,
     816                exp.DataType.Type.MEDIUMINT,
     817            ),
     818            "SIGNED",
     819        )
     820
     821        # MySQL doesn't support many datatypes in cast.
     822        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     823        CAST_MAPPING = {
     824            **CHAR_CAST_MAPPING,
     825            **SIGNED_CAST_MAPPING,
     826            exp.DataType.Type.UBIGINT: "UNSIGNED",
     827        }
     828
     829        TIMESTAMP_FUNC_TYPES = {
     830            exp.DataType.Type.TIMESTAMPTZ,
     831            exp.DataType.Type.TIMESTAMPLTZ,
     832        }
     833
     834        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     835        RESERVED_KEYWORDS = {
     836            "accessible",
     837            "add",
     838            "all",
     839            "alter",
     840            "analyze",
     841            "and",
     842            "as",
     843            "asc",
     844            "asensitive",
     845            "before",
     846            "between",
     847            "bigint",
     848            "binary",
     849            "blob",
     850            "both",
     851            "by",
     852            "call",
     853            "cascade",
     854            "case",
     855            "change",
     856            "char",
     857            "character",
     858            "check",
     859            "collate",
     860            "column",
     861            "condition",
     862            "constraint",
     863            "continue",
     864            "convert",
     865            "create",
     866            "cross",
     867            "cube",
     868            "cume_dist",
     869            "current_date",
     870            "current_time",
     871            "current_timestamp",
     872            "current_user",
     873            "cursor",
     874            "database",
     875            "databases",
     876            "day_hour",
     877            "day_microsecond",
     878            "day_minute",
     879            "day_second",
     880            "dec",
     881            "decimal",
     882            "declare",
     883            "default",
     884            "delayed",
     885            "delete",
     886            "dense_rank",
     887            "desc",
     888            "describe",
     889            "deterministic",
     890            "distinct",
     891            "distinctrow",
     892            "div",
     893            "double",
     894            "drop",
     895            "dual",
     896            "each",
     897            "else",
     898            "elseif",
     899            "empty",
     900            "enclosed",
     901            "escaped",
     902            "except",
     903            "exists",
     904            "exit",
     905            "explain",
     906            "false",
     907            "fetch",
     908            "first_value",
     909            "float",
     910            "float4",
     911            "float8",
     912            "for",
     913            "force",
     914            "foreign",
     915            "from",
     916            "fulltext",
     917            "function",
     918            "generated",
     919            "get",
     920            "grant",
     921            "group",
     922            "grouping",
     923            "groups",
     924            "having",
     925            "high_priority",
     926            "hour_microsecond",
     927            "hour_minute",
     928            "hour_second",
     929            "if",
     930            "ignore",
     931            "in",
     932            "index",
     933            "infile",
     934            "inner",
     935            "inout",
     936            "insensitive",
     937            "insert",
     938            "int",
     939            "int1",
     940            "int2",
     941            "int3",
     942            "int4",
     943            "int8",
     944            "integer",
     945            "intersect",
     946            "interval",
     947            "into",
     948            "io_after_gtids",
     949            "io_before_gtids",
     950            "is",
     951            "iterate",
     952            "join",
     953            "json_table",
     954            "key",
     955            "keys",
     956            "kill",
     957            "lag",
     958            "last_value",
     959            "lateral",
     960            "lead",
     961            "leading",
     962            "leave",
     963            "left",
     964            "like",
     965            "limit",
     966            "linear",
     967            "lines",
     968            "load",
     969            "localtime",
     970            "localtimestamp",
     971            "lock",
     972            "long",
     973            "longblob",
     974            "longtext",
     975            "loop",
     976            "low_priority",
     977            "master_bind",
     978            "master_ssl_verify_server_cert",
     979            "match",
     980            "maxvalue",
     981            "mediumblob",
     982            "mediumint",
     983            "mediumtext",
     984            "middleint",
     985            "minute_microsecond",
     986            "minute_second",
     987            "mod",
     988            "modifies",
     989            "natural",
     990            "not",
     991            "no_write_to_binlog",
     992            "nth_value",
     993            "ntile",
     994            "null",
     995            "numeric",
     996            "of",
     997            "on",
     998            "optimize",
     999            "optimizer_costs",
    1000            "option",
    1001            "optionally",
    1002            "or",
    1003            "order",
    1004            "out",
    1005            "outer",
    1006            "outfile",
    1007            "over",
    1008            "partition",
    1009            "percent_rank",
    1010            "precision",
    1011            "primary",
    1012            "procedure",
    1013            "purge",
    1014            "range",
    1015            "rank",
    1016            "read",
    1017            "reads",
    1018            "read_write",
    1019            "real",
    1020            "recursive",
    1021            "references",
    1022            "regexp",
    1023            "release",
    1024            "rename",
    1025            "repeat",
    1026            "replace",
    1027            "require",
    1028            "resignal",
    1029            "restrict",
    1030            "return",
    1031            "revoke",
    1032            "right",
    1033            "rlike",
    1034            "row",
    1035            "rows",
    1036            "row_number",
    1037            "schema",
    1038            "schemas",
    1039            "second_microsecond",
    1040            "select",
    1041            "sensitive",
    1042            "separator",
    1043            "set",
    1044            "show",
    1045            "signal",
    1046            "smallint",
    1047            "spatial",
    1048            "specific",
    1049            "sql",
    1050            "sqlexception",
    1051            "sqlstate",
    1052            "sqlwarning",
    1053            "sql_big_result",
    1054            "sql_calc_found_rows",
    1055            "sql_small_result",
    1056            "ssl",
    1057            "starting",
    1058            "stored",
    1059            "straight_join",
    1060            "system",
    1061            "table",
    1062            "terminated",
    1063            "then",
    1064            "tinyblob",
    1065            "tinyint",
    1066            "tinytext",
    1067            "to",
    1068            "trailing",
    1069            "trigger",
    1070            "true",
    1071            "undo",
    1072            "union",
    1073            "unique",
    1074            "unlock",
    1075            "unsigned",
    1076            "update",
    1077            "usage",
    1078            "use",
    1079            "using",
    1080            "utc_date",
    1081            "utc_time",
    1082            "utc_timestamp",
    1083            "values",
    1084            "varbinary",
    1085            "varchar",
    1086            "varcharacter",
    1087            "varying",
    1088            "virtual",
    1089            "when",
    1090            "where",
    1091            "while",
    1092            "window",
    1093            "with",
    1094            "write",
    1095            "xor",
    1096            "year_month",
    1097            "zerofill",
    1098        }
    1099
    1100        def array_sql(self, expression: exp.Array) -> str:
    1101            self.unsupported("Arrays are not supported by MySQL")
    1102            return self.function_fallback_sql(expression)
    1103
    1104        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1105            self.unsupported("Array operations are not supported by MySQL")
    1106            return self.function_fallback_sql(expression)
    1107
    1108        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1109            return self.func("CONCAT", *expression.flatten())
    1110
    1111        def extract_sql(self, expression: exp.Extract) -> str:
    1112            unit = expression.name
    1113            if unit and unit.lower() == "epoch":
    1114                return self.func("UNIX_TIMESTAMP", expression.expression)
    1115
    1116            return super().extract_sql(expression)
    1117
    1118        def datatype_sql(self, expression: exp.DataType) -> str:
    1119            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1120            result = super().datatype_sql(expression)
    1121            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1122                result = f"{result} UNSIGNED"
    1123            return result
    1124
    1125        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1126            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1127
    1128        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1129            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1130                return self.func("TIMESTAMP", expression.this)
    1131
    1132            to = self.CAST_MAPPING.get(expression.to.this)
    1133
    1134            if to:
    1135                expression.to.set("this", to)
    1136            return super().cast_sql(expression)
    1137
    1138        def show_sql(self, expression: exp.Show) -> str:
    1139            this = f" {expression.name}"
    1140            full = " FULL" if expression.args.get("full") else ""
    1141            global_ = " GLOBAL" if expression.args.get("global") else ""
    1142
    1143            target = self.sql(expression, "target")
    1144            target = f" {target}" if target else ""
    1145            if expression.name in ("COLUMNS", "INDEX"):
    1146                target = f" FROM{target}"
    1147            elif expression.name == "GRANTS":
    1148                target = f" FOR{target}"
    1149
    1150            db = self._prefixed_sql("FROM", expression, "db")
    1151
    1152            like = self._prefixed_sql("LIKE", expression, "like")
    1153            where = self.sql(expression, "where")
    1154
    1155            types = self.expressions(expression, key="types")
    1156            types = f" {types}" if types else types
    1157            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1158
    1159            if expression.name == "PROFILE":
    1160                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1161                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1162            else:
    1163                offset = ""
    1164                limit = self._oldstyle_limit_sql(expression)
    1165
    1166            log = self._prefixed_sql("IN", expression, "log")
    1167            position = self._prefixed_sql("FROM", expression, "position")
    1168
    1169            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1170
    1171            if expression.name == "ENGINE":
    1172                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1173            else:
    1174                mutex_or_status = ""
    1175
    1176            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1177
    1178        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1179            dtype = self.sql(expression, "dtype")
    1180            if not dtype:
    1181                return super().altercolumn_sql(expression)
    1182
    1183            this = self.sql(expression, "this")
    1184            return f"MODIFY COLUMN {this} {dtype}"
    1185
    1186        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1187            sql = self.sql(expression, arg)
    1188            return f" {prefix} {sql}" if sql else ""
    1189
    1190        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1191            limit = self.sql(expression, "limit")
    1192            offset = self.sql(expression, "offset")
    1193            if limit:
    1194                limit_offset = f"{offset}, {limit}" if offset else limit
    1195                return f" LIMIT {limit_offset}"
    1196            return ""
    1197
    1198        def chr_sql(self, expression: exp.Chr) -> str:
    1199            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1200            charset = expression.args.get("charset")
    1201            using = f" USING {self.sql(charset)}" if charset else ""
    1202            return f"CHAR({this}{using})"
    1203
    1204        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1205            unit = expression.args.get("unit")
    1206
    1207            # Pick an old-enough date to avoid negative timestamp diffs
    1208            start_ts = "'0000-01-01 00:00:00'"
    1209
    1210            # Source: https://stackoverflow.com/a/32955740
    1211            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1212            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1213            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1214
    1215            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.

SUPPORTS_COLUMN_JOIN_MARKS = False

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

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

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

tokenizer_class = <class 'MySQL.Tokenizer'>
jsonpath_tokenizer_class = <class 'sqlglot.tokens.JSONPathTokenizer'>
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}}}
INVERSE_FORMAT_MAPPING: Dict[str, str] = {}
INVERSE_FORMAT_TRIE: Dict = {}
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
  COPY_PARAMS_ARE_CSV
  NORMALIZE_FUNCTIONS
  LOG_BASE_FIRST
  NULL_ORDERING
  TYPED_DIVISION
  CONCAT_COALESCE
  HEX_LOWERCASE
  DATE_FORMAT
  DATEINT_FORMAT
  FORMAT_MAPPING
  PSEUDOCOLUMNS
  PREFER_CTE_ALIAS_COLUMN
  FORCE_EARLY_ALIAS_REF_EXPANSION
  EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY
  SUPPORTS_ORDER_BY_ALL
  DATE_PART_MAPPING
  get_or_raise
  format_time
  settings
  normalize_identifier
  case_sensitive
  can_identify
  quote_identifier
  to_json_path
  parse
  parse_into
  generate
  transpile
  tokenize
  tokenizer
  jsonpath_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            "KEY": TokenType.KEY,
    207            "LOCK TABLES": TokenType.COMMAND,
    208            "LONGBLOB": TokenType.LONGBLOB,
    209            "LONGTEXT": TokenType.LONGTEXT,
    210            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    211            "TINYBLOB": TokenType.TINYBLOB,
    212            "TINYTEXT": TokenType.TINYTEXT,
    213            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    214            "MEDIUMINT": TokenType.MEDIUMINT,
    215            "MEMBER OF": TokenType.MEMBER_OF,
    216            "SEPARATOR": TokenType.SEPARATOR,
    217            "START": TokenType.BEGIN,
    218            "SIGNED": TokenType.BIGINT,
    219            "SIGNED INTEGER": TokenType.BIGINT,
    220            "UNLOCK TABLES": TokenType.COMMAND,
    221            "UNSIGNED": TokenType.UBIGINT,
    222            "UNSIGNED INTEGER": TokenType.UBIGINT,
    223            "YEAR": TokenType.YEAR,
    224            "_ARMSCII8": TokenType.INTRODUCER,
    225            "_ASCII": TokenType.INTRODUCER,
    226            "_BIG5": TokenType.INTRODUCER,
    227            "_BINARY": TokenType.INTRODUCER,
    228            "_CP1250": TokenType.INTRODUCER,
    229            "_CP1251": TokenType.INTRODUCER,
    230            "_CP1256": TokenType.INTRODUCER,
    231            "_CP1257": TokenType.INTRODUCER,
    232            "_CP850": TokenType.INTRODUCER,
    233            "_CP852": TokenType.INTRODUCER,
    234            "_CP866": TokenType.INTRODUCER,
    235            "_CP932": TokenType.INTRODUCER,
    236            "_DEC8": TokenType.INTRODUCER,
    237            "_EUCJPMS": TokenType.INTRODUCER,
    238            "_EUCKR": TokenType.INTRODUCER,
    239            "_GB18030": TokenType.INTRODUCER,
    240            "_GB2312": TokenType.INTRODUCER,
    241            "_GBK": TokenType.INTRODUCER,
    242            "_GEOSTD8": TokenType.INTRODUCER,
    243            "_GREEK": TokenType.INTRODUCER,
    244            "_HEBREW": TokenType.INTRODUCER,
    245            "_HP8": TokenType.INTRODUCER,
    246            "_KEYBCS2": TokenType.INTRODUCER,
    247            "_KOI8R": TokenType.INTRODUCER,
    248            "_KOI8U": TokenType.INTRODUCER,
    249            "_LATIN1": TokenType.INTRODUCER,
    250            "_LATIN2": TokenType.INTRODUCER,
    251            "_LATIN5": TokenType.INTRODUCER,
    252            "_LATIN7": TokenType.INTRODUCER,
    253            "_MACCE": TokenType.INTRODUCER,
    254            "_MACROMAN": TokenType.INTRODUCER,
    255            "_SJIS": TokenType.INTRODUCER,
    256            "_SWE7": TokenType.INTRODUCER,
    257            "_TIS620": TokenType.INTRODUCER,
    258            "_UCS2": TokenType.INTRODUCER,
    259            "_UJIS": TokenType.INTRODUCER,
    260            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    261            "_UTF8": TokenType.INTRODUCER,
    262            "_UTF16": TokenType.INTRODUCER,
    263            "_UTF16LE": TokenType.INTRODUCER,
    264            "_UTF32": TokenType.INTRODUCER,
    265            "_UTF8MB3": TokenType.INTRODUCER,
    266            "_UTF8MB4": TokenType.INTRODUCER,
    267            "@@": TokenType.SESSION_PARAMETER,
    268        }
    269
    270        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'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, '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'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.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'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'CHARSET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'FORCE': <TokenType.FORCE: 'FORCE'>, 'IGNORE': <TokenType.IGNORE: 'IGNORE'>, 'KEY': <TokenType.KEY: 'KEY'>, '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.EXECUTE: 'EXECUTE'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.FETCH: 'FETCH'>}

##### 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
  STRING_ESCAPES_ALLOWED_IN_RAW_STRINGS
  WHITE_SPACE
  COMMAND_PREFIX_TOKENS
  NUMERIC_LITERALS
  dialect
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

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

    272    class Parser(parser.Parser):
    273        FUNC_TOKENS = {
    274            *parser.Parser.FUNC_TOKENS,
    275            TokenType.DATABASE,
    276            TokenType.SCHEMA,
    277            TokenType.VALUES,
    278        }
    279
    280        CONJUNCTION = {
    281            **parser.Parser.CONJUNCTION,
    282            TokenType.DAMP: exp.And,
    283            TokenType.XOR: exp.Xor,
    284        }
    285
    286        DISJUNCTION = {
    287            **parser.Parser.DISJUNCTION,
    288            TokenType.DPIPE: exp.Or,
    289        }
    290
    291        TABLE_ALIAS_TOKENS = (
    292            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    293        )
    294
    295        RANGE_PARSERS = {
    296            **parser.Parser.RANGE_PARSERS,
    297            TokenType.MEMBER_OF: lambda self, this: self.expression(
    298                exp.JSONArrayContains,
    299                this=this,
    300                expression=self._parse_wrapped(self._parse_expression),
    301            ),
    302        }
    303
    304        FUNCTIONS = {
    305            **parser.Parser.FUNCTIONS,
    306            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    307            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    308            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    309            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    310            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    311            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    312            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    313            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    314            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    315            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    316            "ISNULL": isnull_to_is_null,
    317            "LOCATE": locate_to_strposition,
    318            "MAKETIME": exp.TimeFromParts.from_arg_list,
    319            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    320            "MONTHNAME": lambda args: exp.TimeToStr(
    321                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    322                format=exp.Literal.string("%B"),
    323            ),
    324            "STR_TO_DATE": _str_to_date,
    325            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    326            "TO_DAYS": lambda args: exp.paren(
    327                exp.DateDiff(
    328                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    329                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    330                    unit=exp.var("DAY"),
    331                )
    332                + 1
    333            ),
    334            "WEEK": lambda args: exp.Week(
    335                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    336            ),
    337            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    338            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    339        }
    340
    341        FUNCTION_PARSERS = {
    342            **parser.Parser.FUNCTION_PARSERS,
    343            "CHAR": lambda self: self._parse_chr(),
    344            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    345            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    346            "VALUES": lambda self: self.expression(
    347                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    348            ),
    349        }
    350
    351        STATEMENT_PARSERS = {
    352            **parser.Parser.STATEMENT_PARSERS,
    353            TokenType.SHOW: lambda self: self._parse_show(),
    354        }
    355
    356        SHOW_PARSERS = {
    357            "BINARY LOGS": _show_parser("BINARY LOGS"),
    358            "MASTER LOGS": _show_parser("BINARY LOGS"),
    359            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    360            "CHARACTER SET": _show_parser("CHARACTER SET"),
    361            "CHARSET": _show_parser("CHARACTER SET"),
    362            "COLLATION": _show_parser("COLLATION"),
    363            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    364            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    365            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    366            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    367            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    368            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    369            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    370            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    371            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    372            "DATABASES": _show_parser("DATABASES"),
    373            "SCHEMAS": _show_parser("DATABASES"),
    374            "ENGINE": _show_parser("ENGINE", target=True),
    375            "STORAGE ENGINES": _show_parser("ENGINES"),
    376            "ENGINES": _show_parser("ENGINES"),
    377            "ERRORS": _show_parser("ERRORS"),
    378            "EVENTS": _show_parser("EVENTS"),
    379            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    380            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    381            "GRANTS": _show_parser("GRANTS", target="FOR"),
    382            "INDEX": _show_parser("INDEX", target="FROM"),
    383            "MASTER STATUS": _show_parser("MASTER STATUS"),
    384            "OPEN TABLES": _show_parser("OPEN TABLES"),
    385            "PLUGINS": _show_parser("PLUGINS"),
    386            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    387            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    388            "PRIVILEGES": _show_parser("PRIVILEGES"),
    389            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    390            "PROCESSLIST": _show_parser("PROCESSLIST"),
    391            "PROFILE": _show_parser("PROFILE"),
    392            "PROFILES": _show_parser("PROFILES"),
    393            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    394            "REPLICAS": _show_parser("REPLICAS"),
    395            "SLAVE HOSTS": _show_parser("REPLICAS"),
    396            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    397            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    398            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    399            "SESSION STATUS": _show_parser("STATUS"),
    400            "STATUS": _show_parser("STATUS"),
    401            "TABLE STATUS": _show_parser("TABLE STATUS"),
    402            "FULL TABLES": _show_parser("TABLES", full=True),
    403            "TABLES": _show_parser("TABLES"),
    404            "TRIGGERS": _show_parser("TRIGGERS"),
    405            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    406            "SESSION VARIABLES": _show_parser("VARIABLES"),
    407            "VARIABLES": _show_parser("VARIABLES"),
    408            "WARNINGS": _show_parser("WARNINGS"),
    409        }
    410
    411        PROPERTY_PARSERS = {
    412            **parser.Parser.PROPERTY_PARSERS,
    413            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    414        }
    415
    416        SET_PARSERS = {
    417            **parser.Parser.SET_PARSERS,
    418            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    419            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    420            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    421            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    422            "NAMES": lambda self: self._parse_set_item_names(),
    423        }
    424
    425        CONSTRAINT_PARSERS = {
    426            **parser.Parser.CONSTRAINT_PARSERS,
    427            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    428            "INDEX": lambda self: self._parse_index_constraint(),
    429            "KEY": lambda self: self._parse_index_constraint(),
    430            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    431        }
    432
    433        ALTER_PARSERS = {
    434            **parser.Parser.ALTER_PARSERS,
    435            "MODIFY": lambda self: self._parse_alter_table_alter(),
    436        }
    437
    438        SCHEMA_UNNAMED_CONSTRAINTS = {
    439            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    440            "FULLTEXT",
    441            "INDEX",
    442            "KEY",
    443            "SPATIAL",
    444        }
    445
    446        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    447            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    448            "BLOCK": ("IO",),
    449            "CONTEXT": ("SWITCHES",),
    450            "PAGE": ("FAULTS",),
    451        }
    452
    453        TYPE_TOKENS = {
    454            *parser.Parser.TYPE_TOKENS,
    455            TokenType.SET,
    456        }
    457
    458        ENUM_TYPE_TOKENS = {
    459            *parser.Parser.ENUM_TYPE_TOKENS,
    460            TokenType.SET,
    461        }
    462
    463        LOG_DEFAULTS_TO_LN = True
    464        STRING_ALIASES = True
    465        VALUES_FOLLOWED_BY_PAREN = False
    466        SUPPORTS_PARTITION_SELECTION = True
    467
    468        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    469            this = self._parse_id_var()
    470            if not self._match(TokenType.L_PAREN):
    471                return this
    472
    473            expression = self._parse_number()
    474            self._match_r_paren()
    475            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    476
    477        def _parse_index_constraint(
    478            self, kind: t.Optional[str] = None
    479        ) -> exp.IndexColumnConstraint:
    480            if kind:
    481                self._match_texts(("INDEX", "KEY"))
    482
    483            this = self._parse_id_var(any_token=False)
    484            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    485            expressions = self._parse_wrapped_csv(self._parse_ordered)
    486
    487            options = []
    488            while True:
    489                if self._match_text_seq("KEY_BLOCK_SIZE"):
    490                    self._match(TokenType.EQ)
    491                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    492                elif self._match(TokenType.USING):
    493                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    494                elif self._match_text_seq("WITH", "PARSER"):
    495                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    496                elif self._match(TokenType.COMMENT):
    497                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    498                elif self._match_text_seq("VISIBLE"):
    499                    opt = exp.IndexConstraintOption(visible=True)
    500                elif self._match_text_seq("INVISIBLE"):
    501                    opt = exp.IndexConstraintOption(visible=False)
    502                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    503                    self._match(TokenType.EQ)
    504                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    505                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    506                    self._match(TokenType.EQ)
    507                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    508                else:
    509                    opt = None
    510
    511                if not opt:
    512                    break
    513
    514                options.append(opt)
    515
    516            return self.expression(
    517                exp.IndexColumnConstraint,
    518                this=this,
    519                expressions=expressions,
    520                kind=kind,
    521                index_type=index_type,
    522                options=options,
    523            )
    524
    525        def _parse_show_mysql(
    526            self,
    527            this: str,
    528            target: bool | str = False,
    529            full: t.Optional[bool] = None,
    530            global_: t.Optional[bool] = None,
    531        ) -> exp.Show:
    532            if target:
    533                if isinstance(target, str):
    534                    self._match_text_seq(target)
    535                target_id = self._parse_id_var()
    536            else:
    537                target_id = None
    538
    539            log = self._parse_string() if self._match_text_seq("IN") else None
    540
    541            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    542                position = self._parse_number() if self._match_text_seq("FROM") else None
    543                db = None
    544            else:
    545                position = None
    546                db = None
    547
    548                if self._match(TokenType.FROM):
    549                    db = self._parse_id_var()
    550                elif self._match(TokenType.DOT):
    551                    db = target_id
    552                    target_id = self._parse_id_var()
    553
    554            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    555
    556            like = self._parse_string() if self._match_text_seq("LIKE") else None
    557            where = self._parse_where()
    558
    559            if this == "PROFILE":
    560                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    561                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    562                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    563                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    564            else:
    565                types, query = None, None
    566                offset, limit = self._parse_oldstyle_limit()
    567
    568            mutex = True if self._match_text_seq("MUTEX") else None
    569            mutex = False if self._match_text_seq("STATUS") else mutex
    570
    571            return self.expression(
    572                exp.Show,
    573                this=this,
    574                target=target_id,
    575                full=full,
    576                log=log,
    577                position=position,
    578                db=db,
    579                channel=channel,
    580                like=like,
    581                where=where,
    582                types=types,
    583                query=query,
    584                offset=offset,
    585                limit=limit,
    586                mutex=mutex,
    587                **{"global": global_},  # type: ignore
    588            )
    589
    590        def _parse_oldstyle_limit(
    591            self,
    592        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    593            limit = None
    594            offset = None
    595            if self._match_text_seq("LIMIT"):
    596                parts = self._parse_csv(self._parse_number)
    597                if len(parts) == 1:
    598                    limit = parts[0]
    599                elif len(parts) == 2:
    600                    limit = parts[1]
    601                    offset = parts[0]
    602
    603            return offset, limit
    604
    605        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    606            this = self._parse_string() or self._parse_unquoted_field()
    607            return self.expression(exp.SetItem, this=this, kind=kind)
    608
    609        def _parse_set_item_names(self) -> exp.Expression:
    610            charset = self._parse_string() or self._parse_unquoted_field()
    611            if self._match_text_seq("COLLATE"):
    612                collate = self._parse_string() or self._parse_unquoted_field()
    613            else:
    614                collate = None
    615
    616            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    617
    618        def _parse_type(
    619            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    620        ) -> t.Optional[exp.Expression]:
    621            # mysql binary is special and can work anywhere, even in order by operations
    622            # it operates like a no paren func
    623            if self._match(TokenType.BINARY, advance=False):
    624                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    625
    626                if isinstance(data_type, exp.DataType):
    627                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    628
    629            return super()._parse_type(
    630                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    631            )
    632
    633        def _parse_chr(self) -> t.Optional[exp.Expression]:
    634            expressions = self._parse_csv(self._parse_assignment)
    635            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
    636
    637            if len(expressions) > 1:
    638                kwargs["expressions"] = expressions[1:]
    639
    640            if self._match(TokenType.USING):
    641                kwargs["charset"] = self._parse_var()
    642
    643            return self.expression(exp.Chr, **kwargs)
    644
    645        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    646            def concat_exprs(
    647                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    648            ) -> exp.Expression:
    649                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    650                    concat_exprs = [
    651                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    652                    ]
    653                    node.set("expressions", concat_exprs)
    654                    return node
    655                if len(exprs) == 1:
    656                    return exprs[0]
    657                return self.expression(exp.Concat, expressions=args, safe=True)
    658
    659            args = self._parse_csv(self._parse_lambda)
    660
    661            if args:
    662                order = args[-1] if isinstance(args[-1], exp.Order) else None
    663
    664                if order:
    665                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    666                    # remove 'expr' from exp.Order and add it back to args
    667                    args[-1] = order.this
    668                    order.set("this", concat_exprs(order.this, args))
    669
    670                this = order or concat_exprs(args[0], args)
    671            else:
    672                this = None
    673
    674            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    675
    676            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.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.TIME: 'TIME'>, <TokenType.MONEY: 'MONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UINT128: 'UINT128'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.UUID: 'UUID'>, <TokenType.SOME: 'SOME'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.XOR: 'XOR'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INET: 'INET'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LIST: 'LIST'>, <TokenType.FILTER: 'FILTER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INT128: 'INT128'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ANY: 'ANY'>, <TokenType.ROW: 'ROW'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.GLOB: 'GLOB'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.LIKE: 'LIKE'>, <TokenType.UINT256: 'UINT256'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT: 'INT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.IPV6: 'IPV6'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.NULL: 'NULL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TEXT: 'TEXT'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT256: 'INT256'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ALL: 'ALL'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.VAR: 'VAR'>, <TokenType.NAME: 'NAME'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UINT: 'UINT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.INSERT: 'INSERT'>, <TokenType.VALUES: 'VALUES'>, <TokenType.FIRST: 'FIRST'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.LEFT: 'LEFT'>, <TokenType.IPV4: 'IPV4'>}
CONJUNCTION = {<TokenType.AND: 'AND'>: <class 'sqlglot.expressions.And'>, <TokenType.DAMP: 'DAMP'>: <class 'sqlglot.expressions.And'>, <TokenType.XOR: 'XOR'>: <class 'sqlglot.expressions.Xor'>}
DISJUNCTION = {<TokenType.OR: 'OR'>: <class 'sqlglot.expressions.Or'>, <TokenType.DPIPE: 'DPIPE'>: <class 'sqlglot.expressions.Or'>}
TABLE_ALIAS_TOKENS = {<TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DELETE: 'DELETE'>, <TokenType.TIME: 'TIME'>, <TokenType.MONEY: 'MONEY'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.END: 'END'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DESC: 'DESC'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.SEMI: 'SEMI'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.UUID: 'UUID'>, <TokenType.SOME: 'SOME'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.ANTI: 'ANTI'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.INET: 'INET'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LIST: 'LIST'>, <TokenType.CACHE: 'CACHE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INT128: 'INT128'>, <TokenType.SET: 'SET'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.MODEL: 'MODEL'>, <TokenType.ANY: 'ANY'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ROW: 'ROW'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.COPY: 'COPY'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UINT256: 'UINT256'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT: 'INT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.XML: 'XML'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.TRUE: 'TRUE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.JSON: 'JSON'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.NEXT: 'NEXT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.KILL: 'KILL'>, <TokenType.CASE: 'CASE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.NULL: 'NULL'>, <TokenType.FINAL: 'FINAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TOP: 'TOP'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.TEXT: 'TEXT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.KEEP: 'KEEP'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT256: 'INT256'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.ALL: 'ALL'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.VAR: 'VAR'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.NAME: 'NAME'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.JSONB: 'JSONB'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.ASC: 'ASC'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UINT: 'UINT'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DIV: 'DIV'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TAG: 'TAG'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FALSE: 'FALSE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.LOAD: 'LOAD'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.FIRST: 'FIRST'>, <TokenType.IS: 'IS'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.IPV4: 'IPV4'>, <TokenType.REFERENCES: 'REFERENCES'>}
RANGE_PARSERS = {<TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.OVERLAPS: 'OVERLAPS'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>, <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'>>, 'ARRAY_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_CONTAINS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'ARRAY_HAS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_OVERLAPS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayOverlaps'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySort'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_TO_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CBRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cbrt'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONVERT': <bound method Func.from_arg_list of <class 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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'>>, 'LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.List'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function build_logarithm>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method 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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'>>, 'STRING_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'SPLIT_BY_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Time'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 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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'>>, 'UNNEST': <function Parser.<lambda>>, 'UPPER': <function build_upper>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'VAR_MAP': <function build_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <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>>, 'LPAD': <function Parser.<lambda>>, 'LEFTPAD': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'RPAD': <function Parser.<lambda>>, 'RIGHTPAD': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'TO_HEX': <function build_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>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, '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>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'ENGINE': <function Parser.<lambda>>, 'EXECUTE': <function Parser.<lambda>>, 'EXTERNAL': <function Parser.<lambda>>, 'FALLBACK': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'FREESPACE': <function Parser.<lambda>>, 'GLOBAL': <function Parser.<lambda>>, 'HEAP': <function Parser.<lambda>>, 'ICEBERG': <function Parser.<lambda>>, 'IMMUTABLE': <function Parser.<lambda>>, 'INHERITS': <function Parser.<lambda>>, 'INPUT': <function Parser.<lambda>>, 'JOURNAL': <function Parser.<lambda>>, 'LANGUAGE': <function Parser.<lambda>>, 'LAYOUT': <function Parser.<lambda>>, 'LIFETIME': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'LOCATION': <function Parser.<lambda>>, 'LOCK': <function 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>>, 'SECURE': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'SETTINGS': <function Parser.<lambda>>, 'SHARING': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'SOURCE': <function Parser.<lambda>>, 'STABLE': <function Parser.<lambda>>, 'STORED': <function Parser.<lambda>>, 'SYSTEM_VERSIONING': <function Parser.<lambda>>, 'TBLPROPERTIES': <function Parser.<lambda>>, 'TEMP': <function Parser.<lambda>>, 'TEMPORARY': <function Parser.<lambda>>, 'TO': <function Parser.<lambda>>, 'TRANSIENT': <function Parser.<lambda>>, 'TRANSFORM': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'USING': <function Parser.<lambda>>, 'UNLOGGED': <function Parser.<lambda>>, 'VOLATILE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>}
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 = {'FULLTEXT', 'EXCLUDE', 'FOREIGN KEY', 'SPATIAL', 'CHECK', 'KEY', 'PRIMARY KEY', 'PERIOD', 'INDEX', 'UNIQUE', 'LIKE'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.IPV6: 'IPV6'>, <TokenType.TIME: 'TIME'>, <TokenType.MONEY: 'MONEY'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.NULL: 'NULL'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.UINT128: 'UINT128'>, <TokenType.ENUM: 'ENUM'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.TEXT: 'TEXT'>, <TokenType.UUID: 'UUID'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INET: 'INET'>, <TokenType.INT256: 'INT256'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.LIST: 'LIST'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.INT128: 'INT128'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.SET: 'SET'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.NAME: 'NAME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.DATE32: 'DATE32'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.UINT: 'UINT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.UINT256: 'UINT256'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.INT: 'INT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.XML: 'XML'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.IPV4: 'IPV4'>, <TokenType.YEAR: 'YEAR'>, <TokenType.SUPER: 'SUPER'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.TINYBLOB: 'TINYBLOB'>}
ENUM_TYPE_TOKENS = {<TokenType.ENUM: 'ENUM'>, <TokenType.SET: 'SET'>, <TokenType.ENUM8: 'ENUM8'>, <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
  ARRAY_CONSTRUCTORS
  COMMENT_TABLE_ALIAS_TOKENS
  UPDATE_ALIAS_TOKENS
  TRIM_TYPES
  ASSIGNMENT
  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_CONVERTERS
  DDL_SELECT_TOKENS
  PRE_VOLATILE_TOKENS
  TRANSACTION_KIND
  TRANSACTION_CHARACTERISTICS
  CONFLICT_ACTIONS
  CREATE_SEQUENCE
  ISOLATED_LOADING_OPTIONS
  USABLES
  CAST_ACTIONS
  SCHEMA_BINDING_OPTIONS
  INSERT_ALTERNATIVES
  CLONE_KEYWORDS
  HISTORICAL_DATA_PREFIX
  HISTORICAL_DATA_KIND
  OPCLASS_FOLLOW_KEYWORDS
  OPTYPE_FOLLOW_TOKENS
  TABLE_INDEX_HINT_TOKENS
  VIEW_ATTRIBUTES
  WINDOW_ALIAS_TOKENS
  WINDOW_BEFORE_PAREN_TOKENS
  WINDOW_SIDES
  JSON_KEY_VALUE_SEPARATOR_TOKENS
  FETCH_TOKENS
  ADD_CONSTRAINT_TOKENS
  DISTINCT_TOKENS
  NULL_TOKENS
  UNNEST_OFFSET_ALIAS_TOKENS
  SELECT_START_TOKENS
  COPY_INTO_VARLEN_OPTIONS
  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_SET_OP
  SET_OP_MODIFIERS
  NO_PAREN_IF_COMMANDS
  JSON_ARROWS_REQUIRE_JSON_TYPE
  COLON_IS_VARIANT_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

     678    class Generator(generator.Generator):
     679        INTERVAL_ALLOWS_PLURAL_FORM = False
     680        LOCKING_READS_SUPPORTED = True
     681        NULL_ORDERING_SUPPORTED = None
     682        JOIN_HINTS = False
     683        TABLE_HINTS = True
     684        DUPLICATE_KEY_UPDATE_WITH_SET = False
     685        QUERY_HINT_SEP = " "
     686        VALUES_AS_TABLE = False
     687        NVL2_SUPPORTED = False
     688        LAST_DAY_SUPPORTS_DATE_PART = False
     689        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     690        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     691        JSON_KEY_VALUE_PAIR_SEP = ","
     692        SUPPORTS_TO_NUMBER = False
     693        PARSE_JSON_NAME = None
     694        PAD_FILL_PATTERN_IS_REQUIRED = True
     695
     696        TRANSFORMS = {
     697            **generator.Generator.TRANSFORMS,
     698            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     699            exp.CurrentDate: no_paren_current_date_sql,
     700            exp.DateDiff: _remove_ts_or_ds_to_date(
     701                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     702            ),
     703            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     704            exp.DateStrToDate: datestrtodate_sql,
     705            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     706            exp.DateTrunc: _date_trunc_sql,
     707            exp.Day: _remove_ts_or_ds_to_date(),
     708            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     709            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     710            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     711            exp.GroupConcat: lambda self,
     712            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     713            exp.ILike: no_ilike_sql,
     714            exp.JSONExtractScalar: arrow_json_extract_sql,
     715            exp.Max: max_or_greatest,
     716            exp.Min: min_or_least,
     717            exp.Month: _remove_ts_or_ds_to_date(),
     718            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     719            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     720            exp.Pivot: no_pivot_sql,
     721            exp.Select: transforms.preprocess(
     722                [
     723                    transforms.eliminate_distinct_on,
     724                    transforms.eliminate_semi_and_anti_joins,
     725                    transforms.eliminate_qualify,
     726                    transforms.eliminate_full_outer_join,
     727                ]
     728            ),
     729            exp.StrPosition: strposition_to_locate_sql,
     730            exp.StrToDate: _str_to_date_sql,
     731            exp.StrToTime: _str_to_date_sql,
     732            exp.Stuff: rename_func("INSERT"),
     733            exp.TableSample: no_tablesample_sql,
     734            exp.TimeFromParts: rename_func("MAKETIME"),
     735            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     736            exp.TimestampDiff: lambda self, e: self.func(
     737                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     738            ),
     739            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     740            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     741            exp.TimeStrToTime: lambda self, e: self.sql(
     742                exp.cast(e.this, exp.DataType.Type.DATETIME, copy=True)
     743            ),
     744            exp.TimeToStr: _remove_ts_or_ds_to_date(
     745                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     746            ),
     747            exp.Trim: _trim_sql,
     748            exp.TryCast: no_trycast_sql,
     749            exp.TsOrDsAdd: date_add_sql("ADD"),
     750            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     751            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     752            exp.UnixToTime: _unix_to_time_sql,
     753            exp.Week: _remove_ts_or_ds_to_date(),
     754            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     755            exp.Year: _remove_ts_or_ds_to_date(),
     756        }
     757
     758        UNSIGNED_TYPE_MAPPING = {
     759            exp.DataType.Type.UBIGINT: "BIGINT",
     760            exp.DataType.Type.UINT: "INT",
     761            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     762            exp.DataType.Type.USMALLINT: "SMALLINT",
     763            exp.DataType.Type.UTINYINT: "TINYINT",
     764            exp.DataType.Type.UDECIMAL: "DECIMAL",
     765        }
     766
     767        TIMESTAMP_TYPE_MAPPING = {
     768            exp.DataType.Type.TIMESTAMP: "DATETIME",
     769            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     770            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     771        }
     772
     773        TYPE_MAPPING = {
     774            **generator.Generator.TYPE_MAPPING,
     775            **UNSIGNED_TYPE_MAPPING,
     776            **TIMESTAMP_TYPE_MAPPING,
     777        }
     778
     779        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     780        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     781        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     782        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     783        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     784        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     785
     786        PROPERTIES_LOCATION = {
     787            **generator.Generator.PROPERTIES_LOCATION,
     788            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     789            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     790        }
     791
     792        LIMIT_FETCH = "LIMIT"
     793
     794        LIMIT_ONLY_LITERALS = True
     795
     796        CHAR_CAST_MAPPING = dict.fromkeys(
     797            (
     798                exp.DataType.Type.LONGTEXT,
     799                exp.DataType.Type.LONGBLOB,
     800                exp.DataType.Type.MEDIUMBLOB,
     801                exp.DataType.Type.MEDIUMTEXT,
     802                exp.DataType.Type.TEXT,
     803                exp.DataType.Type.TINYBLOB,
     804                exp.DataType.Type.TINYTEXT,
     805                exp.DataType.Type.VARCHAR,
     806            ),
     807            "CHAR",
     808        )
     809        SIGNED_CAST_MAPPING = dict.fromkeys(
     810            (
     811                exp.DataType.Type.BIGINT,
     812                exp.DataType.Type.BOOLEAN,
     813                exp.DataType.Type.INT,
     814                exp.DataType.Type.SMALLINT,
     815                exp.DataType.Type.TINYINT,
     816                exp.DataType.Type.MEDIUMINT,
     817            ),
     818            "SIGNED",
     819        )
     820
     821        # MySQL doesn't support many datatypes in cast.
     822        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     823        CAST_MAPPING = {
     824            **CHAR_CAST_MAPPING,
     825            **SIGNED_CAST_MAPPING,
     826            exp.DataType.Type.UBIGINT: "UNSIGNED",
     827        }
     828
     829        TIMESTAMP_FUNC_TYPES = {
     830            exp.DataType.Type.TIMESTAMPTZ,
     831            exp.DataType.Type.TIMESTAMPLTZ,
     832        }
     833
     834        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     835        RESERVED_KEYWORDS = {
     836            "accessible",
     837            "add",
     838            "all",
     839            "alter",
     840            "analyze",
     841            "and",
     842            "as",
     843            "asc",
     844            "asensitive",
     845            "before",
     846            "between",
     847            "bigint",
     848            "binary",
     849            "blob",
     850            "both",
     851            "by",
     852            "call",
     853            "cascade",
     854            "case",
     855            "change",
     856            "char",
     857            "character",
     858            "check",
     859            "collate",
     860            "column",
     861            "condition",
     862            "constraint",
     863            "continue",
     864            "convert",
     865            "create",
     866            "cross",
     867            "cube",
     868            "cume_dist",
     869            "current_date",
     870            "current_time",
     871            "current_timestamp",
     872            "current_user",
     873            "cursor",
     874            "database",
     875            "databases",
     876            "day_hour",
     877            "day_microsecond",
     878            "day_minute",
     879            "day_second",
     880            "dec",
     881            "decimal",
     882            "declare",
     883            "default",
     884            "delayed",
     885            "delete",
     886            "dense_rank",
     887            "desc",
     888            "describe",
     889            "deterministic",
     890            "distinct",
     891            "distinctrow",
     892            "div",
     893            "double",
     894            "drop",
     895            "dual",
     896            "each",
     897            "else",
     898            "elseif",
     899            "empty",
     900            "enclosed",
     901            "escaped",
     902            "except",
     903            "exists",
     904            "exit",
     905            "explain",
     906            "false",
     907            "fetch",
     908            "first_value",
     909            "float",
     910            "float4",
     911            "float8",
     912            "for",
     913            "force",
     914            "foreign",
     915            "from",
     916            "fulltext",
     917            "function",
     918            "generated",
     919            "get",
     920            "grant",
     921            "group",
     922            "grouping",
     923            "groups",
     924            "having",
     925            "high_priority",
     926            "hour_microsecond",
     927            "hour_minute",
     928            "hour_second",
     929            "if",
     930            "ignore",
     931            "in",
     932            "index",
     933            "infile",
     934            "inner",
     935            "inout",
     936            "insensitive",
     937            "insert",
     938            "int",
     939            "int1",
     940            "int2",
     941            "int3",
     942            "int4",
     943            "int8",
     944            "integer",
     945            "intersect",
     946            "interval",
     947            "into",
     948            "io_after_gtids",
     949            "io_before_gtids",
     950            "is",
     951            "iterate",
     952            "join",
     953            "json_table",
     954            "key",
     955            "keys",
     956            "kill",
     957            "lag",
     958            "last_value",
     959            "lateral",
     960            "lead",
     961            "leading",
     962            "leave",
     963            "left",
     964            "like",
     965            "limit",
     966            "linear",
     967            "lines",
     968            "load",
     969            "localtime",
     970            "localtimestamp",
     971            "lock",
     972            "long",
     973            "longblob",
     974            "longtext",
     975            "loop",
     976            "low_priority",
     977            "master_bind",
     978            "master_ssl_verify_server_cert",
     979            "match",
     980            "maxvalue",
     981            "mediumblob",
     982            "mediumint",
     983            "mediumtext",
     984            "middleint",
     985            "minute_microsecond",
     986            "minute_second",
     987            "mod",
     988            "modifies",
     989            "natural",
     990            "not",
     991            "no_write_to_binlog",
     992            "nth_value",
     993            "ntile",
     994            "null",
     995            "numeric",
     996            "of",
     997            "on",
     998            "optimize",
     999            "optimizer_costs",
    1000            "option",
    1001            "optionally",
    1002            "or",
    1003            "order",
    1004            "out",
    1005            "outer",
    1006            "outfile",
    1007            "over",
    1008            "partition",
    1009            "percent_rank",
    1010            "precision",
    1011            "primary",
    1012            "procedure",
    1013            "purge",
    1014            "range",
    1015            "rank",
    1016            "read",
    1017            "reads",
    1018            "read_write",
    1019            "real",
    1020            "recursive",
    1021            "references",
    1022            "regexp",
    1023            "release",
    1024            "rename",
    1025            "repeat",
    1026            "replace",
    1027            "require",
    1028            "resignal",
    1029            "restrict",
    1030            "return",
    1031            "revoke",
    1032            "right",
    1033            "rlike",
    1034            "row",
    1035            "rows",
    1036            "row_number",
    1037            "schema",
    1038            "schemas",
    1039            "second_microsecond",
    1040            "select",
    1041            "sensitive",
    1042            "separator",
    1043            "set",
    1044            "show",
    1045            "signal",
    1046            "smallint",
    1047            "spatial",
    1048            "specific",
    1049            "sql",
    1050            "sqlexception",
    1051            "sqlstate",
    1052            "sqlwarning",
    1053            "sql_big_result",
    1054            "sql_calc_found_rows",
    1055            "sql_small_result",
    1056            "ssl",
    1057            "starting",
    1058            "stored",
    1059            "straight_join",
    1060            "system",
    1061            "table",
    1062            "terminated",
    1063            "then",
    1064            "tinyblob",
    1065            "tinyint",
    1066            "tinytext",
    1067            "to",
    1068            "trailing",
    1069            "trigger",
    1070            "true",
    1071            "undo",
    1072            "union",
    1073            "unique",
    1074            "unlock",
    1075            "unsigned",
    1076            "update",
    1077            "usage",
    1078            "use",
    1079            "using",
    1080            "utc_date",
    1081            "utc_time",
    1082            "utc_timestamp",
    1083            "values",
    1084            "varbinary",
    1085            "varchar",
    1086            "varcharacter",
    1087            "varying",
    1088            "virtual",
    1089            "when",
    1090            "where",
    1091            "while",
    1092            "window",
    1093            "with",
    1094            "write",
    1095            "xor",
    1096            "year_month",
    1097            "zerofill",
    1098        }
    1099
    1100        def array_sql(self, expression: exp.Array) -> str:
    1101            self.unsupported("Arrays are not supported by MySQL")
    1102            return self.function_fallback_sql(expression)
    1103
    1104        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1105            self.unsupported("Array operations are not supported by MySQL")
    1106            return self.function_fallback_sql(expression)
    1107
    1108        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1109            return self.func("CONCAT", *expression.flatten())
    1110
    1111        def extract_sql(self, expression: exp.Extract) -> str:
    1112            unit = expression.name
    1113            if unit and unit.lower() == "epoch":
    1114                return self.func("UNIX_TIMESTAMP", expression.expression)
    1115
    1116            return super().extract_sql(expression)
    1117
    1118        def datatype_sql(self, expression: exp.DataType) -> str:
    1119            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1120            result = super().datatype_sql(expression)
    1121            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1122                result = f"{result} UNSIGNED"
    1123            return result
    1124
    1125        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1126            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1127
    1128        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1129            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1130                return self.func("TIMESTAMP", expression.this)
    1131
    1132            to = self.CAST_MAPPING.get(expression.to.this)
    1133
    1134            if to:
    1135                expression.to.set("this", to)
    1136            return super().cast_sql(expression)
    1137
    1138        def show_sql(self, expression: exp.Show) -> str:
    1139            this = f" {expression.name}"
    1140            full = " FULL" if expression.args.get("full") else ""
    1141            global_ = " GLOBAL" if expression.args.get("global") else ""
    1142
    1143            target = self.sql(expression, "target")
    1144            target = f" {target}" if target else ""
    1145            if expression.name in ("COLUMNS", "INDEX"):
    1146                target = f" FROM{target}"
    1147            elif expression.name == "GRANTS":
    1148                target = f" FOR{target}"
    1149
    1150            db = self._prefixed_sql("FROM", expression, "db")
    1151
    1152            like = self._prefixed_sql("LIKE", expression, "like")
    1153            where = self.sql(expression, "where")
    1154
    1155            types = self.expressions(expression, key="types")
    1156            types = f" {types}" if types else types
    1157            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1158
    1159            if expression.name == "PROFILE":
    1160                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1161                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1162            else:
    1163                offset = ""
    1164                limit = self._oldstyle_limit_sql(expression)
    1165
    1166            log = self._prefixed_sql("IN", expression, "log")
    1167            position = self._prefixed_sql("FROM", expression, "position")
    1168
    1169            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1170
    1171            if expression.name == "ENGINE":
    1172                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1173            else:
    1174                mutex_or_status = ""
    1175
    1176            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1177
    1178        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1179            dtype = self.sql(expression, "dtype")
    1180            if not dtype:
    1181                return super().altercolumn_sql(expression)
    1182
    1183            this = self.sql(expression, "this")
    1184            return f"MODIFY COLUMN {this} {dtype}"
    1185
    1186        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1187            sql = self.sql(expression, arg)
    1188            return f" {prefix} {sql}" if sql else ""
    1189
    1190        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1191            limit = self.sql(expression, "limit")
    1192            offset = self.sql(expression, "offset")
    1193            if limit:
    1194                limit_offset = f"{offset}, {limit}" if offset else limit
    1195                return f" LIMIT {limit_offset}"
    1196            return ""
    1197
    1198        def chr_sql(self, expression: exp.Chr) -> str:
    1199            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1200            charset = expression.args.get("charset")
    1201            using = f" USING {self.sql(charset)}" if charset else ""
    1202            return f"CHAR({this}{using})"
    1203
    1204        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1205            unit = expression.args.get("unit")
    1206
    1207            # Pick an old-enough date to avoid negative timestamp diffs
    1208            start_ts = "'0000-01-01 00:00:00'"
    1209
    1210            # Source: https://stackoverflow.com/a/32955740
    1211            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1212            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1213            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1214
    1215            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

INTERVAL_ALLOWS_PLURAL_FORM = False
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
PARSE_JSON_NAME = None
PAD_FILL_PATTERN_IS_REQUIRED = True
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.ConnectByRoot'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DynamicProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function 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.ProjectionPolicyColumnConstraint'>: <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.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SharingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TagColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.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.DynamicProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_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.SecureProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SharingProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SequenceProperties'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.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.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <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'>}
RESERVED_KEYWORDS = {'to', 'longblob', 'set', 'and', 'rank', 'int8', 'mod', 'return', 'change', 'mediumint', 'show', 'cross', 'int2', 'blob', 'outfile', 'restrict', 'window', 'databases', 'out', 'procedure', 'div', 'hour_minute', 'condition', 'left', 'elseif', 'modifies', 'day_second', 'force', 'select', 'smallint', 'numeric', 'escaped', 'order', 'undo', 'straight_join', 'master_bind', 'middleint', 'leading', 'grouping', 'current_timestamp', 'mediumblob', 'cume_dist', 'lateral', 'iterate', 'key', 'schemas', 'exists', 'both', 'rlike', 'intersect', 'over', 'delayed', 'sql', 'in', 'dec', 'repeat', 'sqlwarning', 'dual', 'function', 'current_date', 'using', 'cursor', 'terminated', 'accessible', 'is', 'else', 'create', 'year_month', 'long', 'when', 'ssl', 'int1', 'sql_small_result', 'values', 'while', 'check', 'enclosed', 'read', 'read_write', 'optimize', 'utc_time', 'lag', 'false', 'starting', 'binary', 'hour_microsecond', 'bigint', 'declare', 'asensitive', 'having', 'convert', 'double', 'foreign', 'of', 'longtext', 'cascade', 'hour_second', 'utc_timestamp', 'infile', 'linear', 'natural', 'io_before_gtids', 'desc', 'stored', 'json_table', 'virtual', 'with', 'io_after_gtids', 'system', 'if', 'load', 'nth_value', 'all', 'optimizer_costs', 'grant', 'rename', 'current_time', 'no_write_to_binlog', 'exit', 'range', 'unique', 'unlock', 'unsigned', 'not', 'case', 'first_value', 'specific', 'column', 'tinytext', 'into', 'schema', 'call', 'collate', 'join', 'purge', 'like', 'get', 'ignore', 'lines', 'each', 'usage', 'optionally', 'real', 'fulltext', 'references', 'require', 'sql_calc_found_rows', 'varying', 'int3', 'maxvalue', 'second_microsecond', 'keys', 'generated', 'int', 'lock', 'fetch', 'day_minute', 'option', 'float4', 'sqlstate', 'leave', 'char', 'revoke', 'signal', 'add', 'before', 'or', 'insert', 'distinct', 'cube', 'current_user', 'index', 'kill', 'write', 'zerofill', 'limit', 'then', 'alter', 'insensitive', 'interval', 'asc', 'resignal', 'inner', 'drop', 'separator', 'tinyblob', 'precision', 'right', 'constraint', 'union', 'int4', 'varchar', 'float', 'continue', 'decimal', 'match', 'on', 'use', 'outer', 'by', 'high_priority', 'primary', 'sensitive', 'as', 'percent_rank', 'ntile', 'loop', 'null', 'replace', 'groups', 'partition', 'tinyint', 'varcharacter', 'character', 'explain', 'xor', 'empty', 'between', 'master_ssl_verify_server_cert', 'for', 'inout', 'row_number', 'utc_date', 'integer', 'varbinary', 'day_hour', 'group', 'minute_microsecond', 'day_microsecond', 'trailing', 'true', 'database', 'delete', 'localtimestamp', 'low_priority', 'last_value', 'mediumtext', 'table', 'distinctrow', 'spatial', 'release', 'trigger', 'rows', 'deterministic', 'from', 'update', 'default', 'row', 'sql_big_result', 'where', 'analyze', 'localtime', 'regexp', 'float8', 'describe', 'minute_second', 'dense_rank', 'lead', 'except', 'reads', 'recursive', 'sqlexception'}
def array_sql(self, expression: sqlglot.expressions.Array) -> str: View Source

    1100        def array_sql(self, expression: exp.Array) -> str:
    1101            self.unsupported("Arrays are not supported by MySQL")
    1102            return self.function_fallback_sql(expression)

def arraycontainsall_sql(self, expression: sqlglot.expressions.ArrayContainsAll) -> str: View Source

    1104        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1105            self.unsupported("Array operations are not supported by MySQL")
    1106            return self.function_fallback_sql(expression)

def dpipe_sql(self, expression: sqlglot.expressions.DPipe) -> str: View Source

    1108        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1109            return self.func("CONCAT", *expression.flatten())

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

    1111        def extract_sql(self, expression: exp.Extract) -> str:
    1112            unit = expression.name
    1113            if unit and unit.lower() == "epoch":
    1114                return self.func("UNIX_TIMESTAMP", expression.expression)
    1115
    1116            return super().extract_sql(expression)

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

    1118        def datatype_sql(self, expression: exp.DataType) -> str:
    1119            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1120            result = super().datatype_sql(expression)
    1121            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1122                result = f"{result} UNSIGNED"
    1123            return result

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

    1125        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1126            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

    1128        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1129            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1130                return self.func("TIMESTAMP", expression.this)
    1131
    1132            to = self.CAST_MAPPING.get(expression.to.this)
    1133
    1134            if to:
    1135                expression.to.set("this", to)
    1136            return super().cast_sql(expression)

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

    1138        def show_sql(self, expression: exp.Show) -> str:
    1139            this = f" {expression.name}"
    1140            full = " FULL" if expression.args.get("full") else ""
    1141            global_ = " GLOBAL" if expression.args.get("global") else ""
    1142
    1143            target = self.sql(expression, "target")
    1144            target = f" {target}" if target else ""
    1145            if expression.name in ("COLUMNS", "INDEX"):
    1146                target = f" FROM{target}"
    1147            elif expression.name == "GRANTS":
    1148                target = f" FOR{target}"
    1149
    1150            db = self._prefixed_sql("FROM", expression, "db")
    1151
    1152            like = self._prefixed_sql("LIKE", expression, "like")
    1153            where = self.sql(expression, "where")
    1154
    1155            types = self.expressions(expression, key="types")
    1156            types = f" {types}" if types else types
    1157            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1158
    1159            if expression.name == "PROFILE":
    1160                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1161                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1162            else:
    1163                offset = ""
    1164                limit = self._oldstyle_limit_sql(expression)
    1165
    1166            log = self._prefixed_sql("IN", expression, "log")
    1167            position = self._prefixed_sql("FROM", expression, "position")
    1168
    1169            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1170
    1171            if expression.name == "ENGINE":
    1172                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1173            else:
    1174                mutex_or_status = ""
    1175
    1176            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

    1178        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1179            dtype = self.sql(expression, "dtype")
    1180            if not dtype:
    1181                return super().altercolumn_sql(expression)
    1182
    1183            this = self.sql(expression, "this")
    1184            return f"MODIFY COLUMN {this} {dtype}"

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

    1198        def chr_sql(self, expression: exp.Chr) -> str:
    1199            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1200            charset = expression.args.get("charset")
    1201            using = f" USING {self.sql(charset)}" if charset else ""
    1202            return f"CHAR({this}{using})"

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

    1204        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1205            unit = expression.args.get("unit")
    1206
    1207            # Pick an old-enough date to avoid negative timestamp diffs
    1208            start_ts = "'0000-01-01 00:00:00'"
    1209
    1210            # Source: https://stackoverflow.com/a/32955740
    1211            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1212            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1213            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1214
    1215            return self.sql(dateadd)

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

##### Inherited Members

sqlglot.generator.Generator
  Generator
  IGNORE_NULLS_IN_FUNC
  EXPLICIT_SET_OP
  WRAP_DERIVED_VALUES
  CREATE_FUNCTION_RETURN_AS
  MATCHED_BY_SOURCE
  SINGLE_STRING_INTERVAL
  RENAME_TABLE_WITH_DB
  GROUPINGS_SEP
  INDEX_ON
  QUERY_HINTS
  IS_BOOL_ALLOWED
  LIMIT_IS_TOP
  RETURNING_END
  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
  SET_OP_MODIFIERS
  COPY_PARAMS_ARE_WRAPPED
  COPY_PARAMS_EQ_REQUIRED
  COPY_HAS_INTO_KEYWORD
  STAR_EXCEPT
  HEX_FUNC
  WITH_PROPERTIES_PREFIX
  QUOTE_JSON_PATH
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  NAMED_PLACEHOLDER_TOKEN
  WITH_SEPARATED_COMMENTS
  EXCLUDE_COMMENTS
  UNWRAPPED_INTERVAL_VALUES
  PARAMETERIZABLE_TEXT_TYPES
  EXPRESSIONS_WITHOUT_NESTED_CTES
  SENTINEL_LINE_BREAK
  pretty
  identify
  normalize
  pad
  unsupported_level
  max_unsupported
  leading_comma
  max_text_width
  comments
  dialect
  normalize_functions
  unsupported_messages
  generate
  preprocess
  unsupported
  sep
  seg
  pad_comment
  maybe_comment
  wrap
  no_identify
  normalize_func
  indent
  sql
  uncache_sql
  cache_sql
  characterset_sql
  column_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
  ordered_sql
  matchrecognizemeasure_sql
  matchrecognize_sql
  query_modifiers
  options_modifier
  queryoption_sql
  offset_limit_modifiers
  after_limit_modifiers
  select_sql
  schema_sql
  schema_columns_sql
  star_sql
  parameter_sql
  sessionparameter_sql
  placeholder_sql
  subquery_sql
  qualify_sql
  set_operations
  union_sql
  union_op
  unnest_sql
  prewhere_sql
  where_sql
  window_sql
  partition_by_sql
  windowspec_sql
  withingroup_sql
  between_sql
  bracket_offset_expressions
  bracket_sql
  all_sql
  any_sql
  exists_sql
  case_sql
  constraint_sql
  nextvaluefor_sql
  trim_sql
  convert_concat_args
  concat_sql
  concatws_sql
  check_sql
  foreignkey_sql
  primarykey_sql
  if_sql
  matchagainst_sql
  jsonkeyvalue_sql
  jsonpath_sql
  json_path_part
  formatjson_sql
  jsonobject_sql
  jsonobjectagg_sql
  jsonarray_sql
  jsonarrayagg_sql
  jsoncolumndef_sql
  jsonschema_sql
  jsontable_sql
  openjsoncolumndef_sql
  openjson_sql
  in_sql
  in_unnest_op
  interval_sql
  return_sql
  reference_sql
  anonymous_sql
  paren_sql
  neg_sql
  not_sql
  alias_sql
  pivotalias_sql
  aliases_sql
  atindex_sql
  attimezone_sql
  fromtimezone_sql
  add_sql
  and_sql
  or_sql
  xor_sql
  connector_sql
  bitwiseand_sql
  bitwiseleftshift_sql
  bitwisenot_sql
  bitwiseor_sql
  bitwiserightshift_sql
  bitwisexor_sql
  currentdate_sql
  currenttimestamp_sql
  collate_sql
  command_sql
  comment_sql
  mergetreettlaction_sql
  mergetreettl_sql
  transaction_sql
  commit_sql
  rollback_sql
  alterdiststyle_sql
  altersortkey_sql
  renametable_sql
  renamecolumn_sql
  alterset_sql
  altertable_sql
  add_column_sql
  droppartition_sql
  addconstraint_sql
  distinct_sql
  ignorenulls_sql
  respectnulls_sql
  havingmax_sql
  intdiv_sql
  div_sql
  overlaps_sql
  distance_sql
  dot_sql
  eq_sql
  propertyeq_sql
  escape_sql
  glob_sql
  gt_sql
  gte_sql
  ilike_sql
  ilikeany_sql
  is_sql
  like_sql
  likeany_sql
  similarto_sql
  lt_sql
  lte_sql
  mod_sql
  mul_sql
  neq_sql
  nullsafeeq_sql
  nullsafeneq_sql
  slice_sql
  sub_sql
  trycast_sql
  try_sql
  log_sql
  use_sql
  binary
  function_fallback_sql
  func
  format_args
  too_wide
  format_time
  expressions
  op_expressions
  naked_property
  tag_sql
  token_sql
  userdefinedfunction_sql
  joinhint_sql
  kwarg_sql
  when_sql
  merge_sql
  tochar_sql
  tonumber_sql
  dictproperty_sql
  dictrange_sql
  dictsubproperty_sql
  oncluster_sql
  clusteredbyproperty_sql
  anyvalue_sql
  querytransform_sql
  indexconstraintoption_sql
  checkcolumnconstraint_sql
  indexcolumnconstraint_sql
  nvl2_sql
  comprehension_sql
  columnprefix_sql
  opclass_sql
  predict_sql
  forin_sql
  refresh_sql
  operator_sql
  toarray_sql
  tsordstotime_sql
  tsordstotimestamp_sql
  tsordstodate_sql
  unixdate_sql
  lastday_sql
  dateadd_sql
  arrayany_sql
  generateseries_sql
  struct_sql
  partitionrange_sql
  truncatetable_sql
  convert_sql
  copyparameter_sql
  credentials_sql
  copy_sql
  semicolon_sql
  datadeletionproperty_sql
  maskingpolicycolumnconstraint_sql
  gapfill_sql
  scope_resolution
  scoperesolution_sql
  parsejson_sql
  length_sql
  rand_sql
  strtodate_sql
  strtotime_sql
  changes_sql
  pad_sql