sqlglot.dialects.mysql API documentation

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# sqlglot.dialects.mysql

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       1from __future__ import annotations
       2
       3import typing as t
       4
       5from sqlglot import exp, generator, parser, tokens, transforms
       6from sqlglot.dialects.dialect import (
       7    Dialect,
       8    NormalizationStrategy,
       9    arrow_json_extract_sql,
      10    date_add_interval_sql,
      11    datestrtodate_sql,
      12    build_formatted_time,
      13    isnull_to_is_null,
      14    length_or_char_length_sql,
      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_sql,
      26    unit_to_var,
      27    trim_sql,
      28    timestrtotime_sql,
      29)
      30from sqlglot.generator import unsupported_args
      31from sqlglot.helper import seq_get
      32from sqlglot.tokens import TokenType
      33
      34
      35def _show_parser(*args: t.Any, **kwargs: t.Any) -> t.Callable[[MySQL.Parser], exp.Show]:
      36    def _parse(self: MySQL.Parser) -> exp.Show:
      37        return self._parse_show_mysql(*args, **kwargs)
      38
      39    return _parse
      40
      41
      42def _date_trunc_sql(self: MySQL.Generator, expression: exp.DateTrunc) -> str:
      43    expr = self.sql(expression, "this")
      44    unit = expression.text("unit").upper()
      45
      46    if unit == "WEEK":
      47        concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')"
      48        date_format = "%Y %u %w"
      49    elif unit == "MONTH":
      50        concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')"
      51        date_format = "%Y %c %e"
      52    elif unit == "QUARTER":
      53        concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')"
      54        date_format = "%Y %c %e"
      55    elif unit == "YEAR":
      56        concat = f"CONCAT(YEAR({expr}), ' 1 1')"
      57        date_format = "%Y %c %e"
      58    else:
      59        if unit != "DAY":
      60            self.unsupported(f"Unexpected interval unit: {unit}")
      61        return self.func("DATE", expr)
      62
      63    return self.func("STR_TO_DATE", concat, f"'{date_format}'")
      64
      65
      66# All specifiers for time parts (as opposed to date parts)
      67# https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format
      68TIME_SPECIFIERS = {"f", "H", "h", "I", "i", "k", "l", "p", "r", "S", "s", "T"}
      69
      70
      71def _has_time_specifier(date_format: str) -> bool:
      72    i = 0
      73    length = len(date_format)
      74
      75    while i < length:
      76        if date_format[i] == "%":
      77            i += 1
      78            if i < length and date_format[i] in TIME_SPECIFIERS:
      79                return True
      80        i += 1
      81    return False
      82
      83
      84def _str_to_date(args: t.List) -> exp.StrToDate | exp.StrToTime:
      85    mysql_date_format = seq_get(args, 1)
      86    date_format = MySQL.format_time(mysql_date_format)
      87    this = seq_get(args, 0)
      88
      89    if mysql_date_format and _has_time_specifier(mysql_date_format.name):
      90        return exp.StrToTime(this=this, format=date_format)
      91
      92    return exp.StrToDate(this=this, format=date_format)
      93
      94
      95def _str_to_date_sql(
      96    self: MySQL.Generator, expression: exp.StrToDate | exp.StrToTime | exp.TsOrDsToDate
      97) -> str:
      98    return self.func("STR_TO_DATE", expression.this, self.format_time(expression))
      99
     100
     101def _unix_to_time_sql(self: MySQL.Generator, expression: exp.UnixToTime) -> str:
     102    scale = expression.args.get("scale")
     103    timestamp = expression.this
     104
     105    if scale in (None, exp.UnixToTime.SECONDS):
     106        return self.func("FROM_UNIXTIME", timestamp, self.format_time(expression))
     107
     108    return self.func(
     109        "FROM_UNIXTIME",
     110        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)),
     111        self.format_time(expression),
     112    )
     113
     114
     115def date_add_sql(
     116    kind: str,
     117) -> t.Callable[[generator.Generator, exp.Expression], str]:
     118    def func(self: generator.Generator, expression: exp.Expression) -> str:
     119        return self.func(
     120            f"DATE_{kind}",
     121            expression.this,
     122            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
     123        )
     124
     125    return func
     126
     127
     128def _ts_or_ds_to_date_sql(self: MySQL.Generator, expression: exp.TsOrDsToDate) -> str:
     129    time_format = expression.args.get("format")
     130    return _str_to_date_sql(self, expression) if time_format else self.func("DATE", expression.this)
     131
     132
     133def _remove_ts_or_ds_to_date(
     134    to_sql: t.Optional[t.Callable[[MySQL.Generator, exp.Expression], str]] = None,
     135    args: t.Tuple[str, ...] = ("this",),
     136) -> t.Callable[[MySQL.Generator, exp.Func], str]:
     137    def func(self: MySQL.Generator, expression: exp.Func) -> str:
     138        for arg_key in args:
     139            arg = expression.args.get(arg_key)
     140            if isinstance(arg, exp.TsOrDsToDate) and not arg.args.get("format"):
     141                expression.set(arg_key, arg.this)
     142
     143        return to_sql(self, expression) if to_sql else self.function_fallback_sql(expression)
     144
     145    return func
     146
     147
     148class MySQL(Dialect):
     149    PROMOTE_TO_INFERRED_DATETIME_TYPE = True
     150
     151    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
     152    IDENTIFIERS_CAN_START_WITH_DIGIT = True
     153
     154    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
     155    # behavior on Linux systems. For MacOS and Windows systems, one can override this
     156    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
     157    #
     158    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
     159    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
     160
     161    TIME_FORMAT = "'%Y-%m-%d %T'"
     162    DPIPE_IS_STRING_CONCAT = False
     163    SUPPORTS_USER_DEFINED_TYPES = False
     164    SUPPORTS_SEMI_ANTI_JOIN = False
     165    SAFE_DIVISION = True
     166
     167    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
     168    TIME_MAPPING = {
     169        "%M": "%B",
     170        "%c": "%-m",
     171        "%e": "%-d",
     172        "%h": "%I",
     173        "%i": "%M",
     174        "%s": "%S",
     175        "%u": "%W",
     176        "%k": "%-H",
     177        "%l": "%-I",
     178        "%T": "%H:%M:%S",
     179        "%W": "%A",
     180    }
     181
     182    class Tokenizer(tokens.Tokenizer):
     183        QUOTES = ["'", '"']
     184        COMMENTS = ["--", "#", ("/*", "*/")]
     185        IDENTIFIERS = ["`"]
     186        STRING_ESCAPES = ["'", '"', "\\"]
     187        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
     188        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
     189
     190        KEYWORDS = {
     191            **tokens.Tokenizer.KEYWORDS,
     192            "CHARSET": TokenType.CHARACTER_SET,
     193            # The DESCRIBE and EXPLAIN statements are synonyms.
     194            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
     195            "BLOB": TokenType.BLOB,
     196            "EXPLAIN": TokenType.DESCRIBE,
     197            "FORCE": TokenType.FORCE,
     198            "IGNORE": TokenType.IGNORE,
     199            "KEY": TokenType.KEY,
     200            "LOCK TABLES": TokenType.COMMAND,
     201            "LONGBLOB": TokenType.LONGBLOB,
     202            "LONGTEXT": TokenType.LONGTEXT,
     203            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
     204            "TINYBLOB": TokenType.TINYBLOB,
     205            "TINYTEXT": TokenType.TINYTEXT,
     206            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
     207            "MEDIUMINT": TokenType.MEDIUMINT,
     208            "MEMBER OF": TokenType.MEMBER_OF,
     209            "SEPARATOR": TokenType.SEPARATOR,
     210            "SERIAL": TokenType.SERIAL,
     211            "START": TokenType.BEGIN,
     212            "SIGNED": TokenType.BIGINT,
     213            "SIGNED INTEGER": TokenType.BIGINT,
     214            "UNLOCK TABLES": TokenType.COMMAND,
     215            "UNSIGNED": TokenType.UBIGINT,
     216            "UNSIGNED INTEGER": TokenType.UBIGINT,
     217            "YEAR": TokenType.YEAR,
     218            "_ARMSCII8": TokenType.INTRODUCER,
     219            "_ASCII": TokenType.INTRODUCER,
     220            "_BIG5": TokenType.INTRODUCER,
     221            "_BINARY": TokenType.INTRODUCER,
     222            "_CP1250": TokenType.INTRODUCER,
     223            "_CP1251": TokenType.INTRODUCER,
     224            "_CP1256": TokenType.INTRODUCER,
     225            "_CP1257": TokenType.INTRODUCER,
     226            "_CP850": TokenType.INTRODUCER,
     227            "_CP852": TokenType.INTRODUCER,
     228            "_CP866": TokenType.INTRODUCER,
     229            "_CP932": TokenType.INTRODUCER,
     230            "_DEC8": TokenType.INTRODUCER,
     231            "_EUCJPMS": TokenType.INTRODUCER,
     232            "_EUCKR": TokenType.INTRODUCER,
     233            "_GB18030": TokenType.INTRODUCER,
     234            "_GB2312": TokenType.INTRODUCER,
     235            "_GBK": TokenType.INTRODUCER,
     236            "_GEOSTD8": TokenType.INTRODUCER,
     237            "_GREEK": TokenType.INTRODUCER,
     238            "_HEBREW": TokenType.INTRODUCER,
     239            "_HP8": TokenType.INTRODUCER,
     240            "_KEYBCS2": TokenType.INTRODUCER,
     241            "_KOI8R": TokenType.INTRODUCER,
     242            "_KOI8U": TokenType.INTRODUCER,
     243            "_LATIN1": TokenType.INTRODUCER,
     244            "_LATIN2": TokenType.INTRODUCER,
     245            "_LATIN5": TokenType.INTRODUCER,
     246            "_LATIN7": TokenType.INTRODUCER,
     247            "_MACCE": TokenType.INTRODUCER,
     248            "_MACROMAN": TokenType.INTRODUCER,
     249            "_SJIS": TokenType.INTRODUCER,
     250            "_SWE7": TokenType.INTRODUCER,
     251            "_TIS620": TokenType.INTRODUCER,
     252            "_UCS2": TokenType.INTRODUCER,
     253            "_UJIS": TokenType.INTRODUCER,
     254            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
     255            "_UTF8": TokenType.INTRODUCER,
     256            "_UTF16": TokenType.INTRODUCER,
     257            "_UTF16LE": TokenType.INTRODUCER,
     258            "_UTF32": TokenType.INTRODUCER,
     259            "_UTF8MB3": TokenType.INTRODUCER,
     260            "_UTF8MB4": TokenType.INTRODUCER,
     261            "@@": TokenType.SESSION_PARAMETER,
     262        }
     263
     264        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
     265
     266    class Parser(parser.Parser):
     267        FUNC_TOKENS = {
     268            *parser.Parser.FUNC_TOKENS,
     269            TokenType.DATABASE,
     270            TokenType.SCHEMA,
     271            TokenType.VALUES,
     272        }
     273
     274        CONJUNCTION = {
     275            **parser.Parser.CONJUNCTION,
     276            TokenType.DAMP: exp.And,
     277            TokenType.XOR: exp.Xor,
     278        }
     279
     280        DISJUNCTION = {
     281            **parser.Parser.DISJUNCTION,
     282            TokenType.DPIPE: exp.Or,
     283        }
     284
     285        TABLE_ALIAS_TOKENS = (
     286            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     287        )
     288
     289        RANGE_PARSERS = {
     290            **parser.Parser.RANGE_PARSERS,
     291            TokenType.MEMBER_OF: lambda self, this: self.expression(
     292                exp.JSONArrayContains,
     293                this=this,
     294                expression=self._parse_wrapped(self._parse_expression),
     295            ),
     296        }
     297
     298        FUNCTIONS = {
     299            **parser.Parser.FUNCTIONS,
     300            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
     301                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
     302            ),
     303            "CURDATE": exp.CurrentDate.from_arg_list,
     304            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
     305            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     306            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
     307            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     308            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     309            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     310            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     311            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     312            "FORMAT": exp.NumberToStr.from_arg_list,
     313            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     314            "ISNULL": isnull_to_is_null,
     315            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
     316            "MAKETIME": exp.TimeFromParts.from_arg_list,
     317            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     318            "MONTHNAME": lambda args: exp.TimeToStr(
     319                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     320                format=exp.Literal.string("%B"),
     321            ),
     322            "SCHEMA": exp.CurrentSchema.from_arg_list,
     323            "DATABASE": exp.CurrentSchema.from_arg_list,
     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.expression(
     344                exp.Chr,
     345                expressions=self._parse_csv(self._parse_assignment),
     346                charset=self._match(TokenType.USING) and self._parse_var(),
     347            ),
     348            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     349            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     350            "VALUES": lambda self: self.expression(
     351                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     352            ),
     353            "JSON_VALUE": lambda self: self._parse_json_value(),
     354        }
     355
     356        STATEMENT_PARSERS = {
     357            **parser.Parser.STATEMENT_PARSERS,
     358            TokenType.SHOW: lambda self: self._parse_show(),
     359        }
     360
     361        SHOW_PARSERS = {
     362            "BINARY LOGS": _show_parser("BINARY LOGS"),
     363            "MASTER LOGS": _show_parser("BINARY LOGS"),
     364            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     365            "CHARACTER SET": _show_parser("CHARACTER SET"),
     366            "CHARSET": _show_parser("CHARACTER SET"),
     367            "COLLATION": _show_parser("COLLATION"),
     368            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     369            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     370            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     371            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     372            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     373            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     374            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     375            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     376            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     377            "DATABASES": _show_parser("DATABASES"),
     378            "SCHEMAS": _show_parser("DATABASES"),
     379            "ENGINE": _show_parser("ENGINE", target=True),
     380            "STORAGE ENGINES": _show_parser("ENGINES"),
     381            "ENGINES": _show_parser("ENGINES"),
     382            "ERRORS": _show_parser("ERRORS"),
     383            "EVENTS": _show_parser("EVENTS"),
     384            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     385            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     386            "GRANTS": _show_parser("GRANTS", target="FOR"),
     387            "INDEX": _show_parser("INDEX", target="FROM"),
     388            "MASTER STATUS": _show_parser("MASTER STATUS"),
     389            "OPEN TABLES": _show_parser("OPEN TABLES"),
     390            "PLUGINS": _show_parser("PLUGINS"),
     391            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     392            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     393            "PRIVILEGES": _show_parser("PRIVILEGES"),
     394            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     395            "PROCESSLIST": _show_parser("PROCESSLIST"),
     396            "PROFILE": _show_parser("PROFILE"),
     397            "PROFILES": _show_parser("PROFILES"),
     398            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     399            "REPLICAS": _show_parser("REPLICAS"),
     400            "SLAVE HOSTS": _show_parser("REPLICAS"),
     401            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     402            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     403            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     404            "SESSION STATUS": _show_parser("STATUS"),
     405            "STATUS": _show_parser("STATUS"),
     406            "TABLE STATUS": _show_parser("TABLE STATUS"),
     407            "FULL TABLES": _show_parser("TABLES", full=True),
     408            "TABLES": _show_parser("TABLES"),
     409            "TRIGGERS": _show_parser("TRIGGERS"),
     410            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     411            "SESSION VARIABLES": _show_parser("VARIABLES"),
     412            "VARIABLES": _show_parser("VARIABLES"),
     413            "WARNINGS": _show_parser("WARNINGS"),
     414        }
     415
     416        PROPERTY_PARSERS = {
     417            **parser.Parser.PROPERTY_PARSERS,
     418            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     419        }
     420
     421        SET_PARSERS = {
     422            **parser.Parser.SET_PARSERS,
     423            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     424            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     425            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     426            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     427            "NAMES": lambda self: self._parse_set_item_names(),
     428        }
     429
     430        CONSTRAINT_PARSERS = {
     431            **parser.Parser.CONSTRAINT_PARSERS,
     432            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     433            "INDEX": lambda self: self._parse_index_constraint(),
     434            "KEY": lambda self: self._parse_index_constraint(),
     435            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     436        }
     437
     438        ALTER_PARSERS = {
     439            **parser.Parser.ALTER_PARSERS,
     440            "MODIFY": lambda self: self._parse_alter_table_alter(),
     441        }
     442
     443        ALTER_ALTER_PARSERS = {
     444            **parser.Parser.ALTER_ALTER_PARSERS,
     445            "INDEX": lambda self: self._parse_alter_table_alter_index(),
     446        }
     447
     448        SCHEMA_UNNAMED_CONSTRAINTS = {
     449            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     450            "FULLTEXT",
     451            "INDEX",
     452            "KEY",
     453            "SPATIAL",
     454        }
     455
     456        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     457            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     458            "BLOCK": ("IO",),
     459            "CONTEXT": ("SWITCHES",),
     460            "PAGE": ("FAULTS",),
     461        }
     462
     463        TYPE_TOKENS = {
     464            *parser.Parser.TYPE_TOKENS,
     465            TokenType.SET,
     466        }
     467
     468        ENUM_TYPE_TOKENS = {
     469            *parser.Parser.ENUM_TYPE_TOKENS,
     470            TokenType.SET,
     471        }
     472
     473        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
     474        OPERATION_MODIFIERS = {
     475            "HIGH_PRIORITY",
     476            "STRAIGHT_JOIN",
     477            "SQL_SMALL_RESULT",
     478            "SQL_BIG_RESULT",
     479            "SQL_BUFFER_RESULT",
     480            "SQL_NO_CACHE",
     481            "SQL_CALC_FOUND_ROWS",
     482        }
     483
     484        LOG_DEFAULTS_TO_LN = True
     485        STRING_ALIASES = True
     486        VALUES_FOLLOWED_BY_PAREN = False
     487        SUPPORTS_PARTITION_SELECTION = True
     488
     489        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     490            this = self._parse_id_var()
     491            if not self._match(TokenType.L_PAREN):
     492                return this
     493
     494            expression = self._parse_number()
     495            self._match_r_paren()
     496            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     497
     498        def _parse_index_constraint(
     499            self, kind: t.Optional[str] = None
     500        ) -> exp.IndexColumnConstraint:
     501            if kind:
     502                self._match_texts(("INDEX", "KEY"))
     503
     504            this = self._parse_id_var(any_token=False)
     505            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     506            expressions = self._parse_wrapped_csv(self._parse_ordered)
     507
     508            options = []
     509            while True:
     510                if self._match_text_seq("KEY_BLOCK_SIZE"):
     511                    self._match(TokenType.EQ)
     512                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     513                elif self._match(TokenType.USING):
     514                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     515                elif self._match_text_seq("WITH", "PARSER"):
     516                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     517                elif self._match(TokenType.COMMENT):
     518                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     519                elif self._match_text_seq("VISIBLE"):
     520                    opt = exp.IndexConstraintOption(visible=True)
     521                elif self._match_text_seq("INVISIBLE"):
     522                    opt = exp.IndexConstraintOption(visible=False)
     523                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     524                    self._match(TokenType.EQ)
     525                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     526                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     527                    self._match(TokenType.EQ)
     528                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     529                else:
     530                    opt = None
     531
     532                if not opt:
     533                    break
     534
     535                options.append(opt)
     536
     537            return self.expression(
     538                exp.IndexColumnConstraint,
     539                this=this,
     540                expressions=expressions,
     541                kind=kind,
     542                index_type=index_type,
     543                options=options,
     544            )
     545
     546        def _parse_show_mysql(
     547            self,
     548            this: str,
     549            target: bool | str = False,
     550            full: t.Optional[bool] = None,
     551            global_: t.Optional[bool] = None,
     552        ) -> exp.Show:
     553            if target:
     554                if isinstance(target, str):
     555                    self._match_text_seq(target)
     556                target_id = self._parse_id_var()
     557            else:
     558                target_id = None
     559
     560            log = self._parse_string() if self._match_text_seq("IN") else None
     561
     562            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     563                position = self._parse_number() if self._match_text_seq("FROM") else None
     564                db = None
     565            else:
     566                position = None
     567                db = None
     568
     569                if self._match(TokenType.FROM):
     570                    db = self._parse_id_var()
     571                elif self._match(TokenType.DOT):
     572                    db = target_id
     573                    target_id = self._parse_id_var()
     574
     575            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     576
     577            like = self._parse_string() if self._match_text_seq("LIKE") else None
     578            where = self._parse_where()
     579
     580            if this == "PROFILE":
     581                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     582                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     583                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     584                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     585            else:
     586                types, query = None, None
     587                offset, limit = self._parse_oldstyle_limit()
     588
     589            mutex = True if self._match_text_seq("MUTEX") else None
     590            mutex = False if self._match_text_seq("STATUS") else mutex
     591
     592            return self.expression(
     593                exp.Show,
     594                this=this,
     595                target=target_id,
     596                full=full,
     597                log=log,
     598                position=position,
     599                db=db,
     600                channel=channel,
     601                like=like,
     602                where=where,
     603                types=types,
     604                query=query,
     605                offset=offset,
     606                limit=limit,
     607                mutex=mutex,
     608                **{"global": global_},  # type: ignore
     609            )
     610
     611        def _parse_oldstyle_limit(
     612            self,
     613        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     614            limit = None
     615            offset = None
     616            if self._match_text_seq("LIMIT"):
     617                parts = self._parse_csv(self._parse_number)
     618                if len(parts) == 1:
     619                    limit = parts[0]
     620                elif len(parts) == 2:
     621                    limit = parts[1]
     622                    offset = parts[0]
     623
     624            return offset, limit
     625
     626        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     627            this = self._parse_string() or self._parse_unquoted_field()
     628            return self.expression(exp.SetItem, this=this, kind=kind)
     629
     630        def _parse_set_item_names(self) -> exp.Expression:
     631            charset = self._parse_string() or self._parse_unquoted_field()
     632            if self._match_text_seq("COLLATE"):
     633                collate = self._parse_string() or self._parse_unquoted_field()
     634            else:
     635                collate = None
     636
     637            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     638
     639        def _parse_type(
     640            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     641        ) -> t.Optional[exp.Expression]:
     642            # mysql binary is special and can work anywhere, even in order by operations
     643            # it operates like a no paren func
     644            if self._match(TokenType.BINARY, advance=False):
     645                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     646
     647                if isinstance(data_type, exp.DataType):
     648                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     649
     650            return super()._parse_type(
     651                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     652            )
     653
     654        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     655            def concat_exprs(
     656                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     657            ) -> exp.Expression:
     658                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     659                    concat_exprs = [
     660                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     661                    ]
     662                    node.set("expressions", concat_exprs)
     663                    return node
     664                if len(exprs) == 1:
     665                    return exprs[0]
     666                return self.expression(exp.Concat, expressions=args, safe=True)
     667
     668            args = self._parse_csv(self._parse_lambda)
     669
     670            if args:
     671                order = args[-1] if isinstance(args[-1], exp.Order) else None
     672
     673                if order:
     674                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     675                    # remove 'expr' from exp.Order and add it back to args
     676                    args[-1] = order.this
     677                    order.set("this", concat_exprs(order.this, args))
     678
     679                this = order or concat_exprs(args[0], args)
     680            else:
     681                this = None
     682
     683            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     684
     685            return self.expression(exp.GroupConcat, this=this, separator=separator)
     686
     687        def _parse_json_value(self) -> exp.JSONValue:
     688            this = self._parse_bitwise()
     689            self._match(TokenType.COMMA)
     690            path = self._parse_bitwise()
     691
     692            returning = self._match(TokenType.RETURNING) and self._parse_type()
     693
     694            return self.expression(
     695                exp.JSONValue,
     696                this=this,
     697                path=self.dialect.to_json_path(path),
     698                returning=returning,
     699                on_condition=self._parse_on_condition(),
     700            )
     701
     702        def _parse_alter_table_alter_index(self) -> exp.AlterIndex:
     703            index = self._parse_field(any_token=True)
     704
     705            if self._match_text_seq("VISIBLE"):
     706                visible = True
     707            elif self._match_text_seq("INVISIBLE"):
     708                visible = False
     709            else:
     710                visible = None
     711
     712            return self.expression(exp.AlterIndex, this=index, visible=visible)
     713
     714    class Generator(generator.Generator):
     715        INTERVAL_ALLOWS_PLURAL_FORM = False
     716        LOCKING_READS_SUPPORTED = True
     717        NULL_ORDERING_SUPPORTED = None
     718        JOIN_HINTS = False
     719        TABLE_HINTS = True
     720        DUPLICATE_KEY_UPDATE_WITH_SET = False
     721        QUERY_HINT_SEP = " "
     722        VALUES_AS_TABLE = False
     723        NVL2_SUPPORTED = False
     724        LAST_DAY_SUPPORTS_DATE_PART = False
     725        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     726        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     727        JSON_KEY_VALUE_PAIR_SEP = ","
     728        SUPPORTS_TO_NUMBER = False
     729        PARSE_JSON_NAME: t.Optional[str] = None
     730        PAD_FILL_PATTERN_IS_REQUIRED = True
     731        WRAP_DERIVED_VALUES = False
     732        VARCHAR_REQUIRES_SIZE = True
     733        SUPPORTS_MEDIAN = False
     734
     735        TRANSFORMS = {
     736            **generator.Generator.TRANSFORMS,
     737            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     738            exp.CurrentDate: no_paren_current_date_sql,
     739            exp.DateDiff: _remove_ts_or_ds_to_date(
     740                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     741            ),
     742            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     743            exp.DateStrToDate: datestrtodate_sql,
     744            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     745            exp.DateTrunc: _date_trunc_sql,
     746            exp.Day: _remove_ts_or_ds_to_date(),
     747            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     748            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     749            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     750            exp.GroupConcat: lambda self,
     751            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     752            exp.ILike: no_ilike_sql,
     753            exp.JSONExtractScalar: arrow_json_extract_sql,
     754            exp.Length: length_or_char_length_sql,
     755            exp.LogicalOr: rename_func("MAX"),
     756            exp.LogicalAnd: rename_func("MIN"),
     757            exp.Max: max_or_greatest,
     758            exp.Min: min_or_least,
     759            exp.Month: _remove_ts_or_ds_to_date(),
     760            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     761            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     762            exp.NumberToStr: rename_func("FORMAT"),
     763            exp.Pivot: no_pivot_sql,
     764            exp.Select: transforms.preprocess(
     765                [
     766                    transforms.eliminate_distinct_on,
     767                    transforms.eliminate_semi_and_anti_joins,
     768                    transforms.eliminate_qualify,
     769                    transforms.eliminate_full_outer_join,
     770                    transforms.unnest_generate_date_array_using_recursive_cte,
     771                ]
     772            ),
     773            exp.StrPosition: lambda self, e: strposition_sql(
     774                self, e, func_name="LOCATE", supports_position=True
     775            ),
     776            exp.StrToDate: _str_to_date_sql,
     777            exp.StrToTime: _str_to_date_sql,
     778            exp.Stuff: rename_func("INSERT"),
     779            exp.TableSample: no_tablesample_sql,
     780            exp.TimeFromParts: rename_func("MAKETIME"),
     781            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     782            exp.TimestampDiff: lambda self, e: self.func(
     783                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     784            ),
     785            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     786            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     787            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     788                self,
     789                e,
     790                include_precision=not e.args.get("zone"),
     791            ),
     792            exp.TimeToStr: _remove_ts_or_ds_to_date(
     793                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     794            ),
     795            exp.Trim: trim_sql,
     796            exp.TryCast: no_trycast_sql,
     797            exp.TsOrDsAdd: date_add_sql("ADD"),
     798            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     799            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     800            exp.Unicode: lambda self, e: f"ORD(CONVERT({self.sql(e.this)} USING utf32))",
     801            exp.UnixToTime: _unix_to_time_sql,
     802            exp.Week: _remove_ts_or_ds_to_date(),
     803            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     804            exp.Year: _remove_ts_or_ds_to_date(),
     805        }
     806
     807        UNSIGNED_TYPE_MAPPING = {
     808            exp.DataType.Type.UBIGINT: "BIGINT",
     809            exp.DataType.Type.UINT: "INT",
     810            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     811            exp.DataType.Type.USMALLINT: "SMALLINT",
     812            exp.DataType.Type.UTINYINT: "TINYINT",
     813            exp.DataType.Type.UDECIMAL: "DECIMAL",
     814            exp.DataType.Type.UDOUBLE: "DOUBLE",
     815        }
     816
     817        TIMESTAMP_TYPE_MAPPING = {
     818            exp.DataType.Type.DATETIME2: "DATETIME",
     819            exp.DataType.Type.SMALLDATETIME: "DATETIME",
     820            exp.DataType.Type.TIMESTAMP: "DATETIME",
     821            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
     822            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     823            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     824        }
     825
     826        TYPE_MAPPING = {
     827            **generator.Generator.TYPE_MAPPING,
     828            **UNSIGNED_TYPE_MAPPING,
     829            **TIMESTAMP_TYPE_MAPPING,
     830        }
     831
     832        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     833        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     834        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     835        TYPE_MAPPING.pop(exp.DataType.Type.BLOB)
     836        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     837        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     838        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     839
     840        PROPERTIES_LOCATION = {
     841            **generator.Generator.PROPERTIES_LOCATION,
     842            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     843            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     844        }
     845
     846        LIMIT_FETCH = "LIMIT"
     847
     848        LIMIT_ONLY_LITERALS = True
     849
     850        CHAR_CAST_MAPPING = dict.fromkeys(
     851            (
     852                exp.DataType.Type.LONGTEXT,
     853                exp.DataType.Type.LONGBLOB,
     854                exp.DataType.Type.MEDIUMBLOB,
     855                exp.DataType.Type.MEDIUMTEXT,
     856                exp.DataType.Type.TEXT,
     857                exp.DataType.Type.TINYBLOB,
     858                exp.DataType.Type.TINYTEXT,
     859                exp.DataType.Type.VARCHAR,
     860            ),
     861            "CHAR",
     862        )
     863        SIGNED_CAST_MAPPING = dict.fromkeys(
     864            (
     865                exp.DataType.Type.BIGINT,
     866                exp.DataType.Type.BOOLEAN,
     867                exp.DataType.Type.INT,
     868                exp.DataType.Type.SMALLINT,
     869                exp.DataType.Type.TINYINT,
     870                exp.DataType.Type.MEDIUMINT,
     871            ),
     872            "SIGNED",
     873        )
     874
     875        # MySQL doesn't support many datatypes in cast.
     876        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     877        CAST_MAPPING = {
     878            **CHAR_CAST_MAPPING,
     879            **SIGNED_CAST_MAPPING,
     880            exp.DataType.Type.UBIGINT: "UNSIGNED",
     881        }
     882
     883        TIMESTAMP_FUNC_TYPES = {
     884            exp.DataType.Type.TIMESTAMPTZ,
     885            exp.DataType.Type.TIMESTAMPLTZ,
     886        }
     887
     888        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     889        RESERVED_KEYWORDS = {
     890            "accessible",
     891            "add",
     892            "all",
     893            "alter",
     894            "analyze",
     895            "and",
     896            "as",
     897            "asc",
     898            "asensitive",
     899            "before",
     900            "between",
     901            "bigint",
     902            "binary",
     903            "blob",
     904            "both",
     905            "by",
     906            "call",
     907            "cascade",
     908            "case",
     909            "change",
     910            "char",
     911            "character",
     912            "check",
     913            "collate",
     914            "column",
     915            "condition",
     916            "constraint",
     917            "continue",
     918            "convert",
     919            "create",
     920            "cross",
     921            "cube",
     922            "cume_dist",
     923            "current_date",
     924            "current_time",
     925            "current_timestamp",
     926            "current_user",
     927            "cursor",
     928            "database",
     929            "databases",
     930            "day_hour",
     931            "day_microsecond",
     932            "day_minute",
     933            "day_second",
     934            "dec",
     935            "decimal",
     936            "declare",
     937            "default",
     938            "delayed",
     939            "delete",
     940            "dense_rank",
     941            "desc",
     942            "describe",
     943            "deterministic",
     944            "distinct",
     945            "distinctrow",
     946            "div",
     947            "double",
     948            "drop",
     949            "dual",
     950            "each",
     951            "else",
     952            "elseif",
     953            "empty",
     954            "enclosed",
     955            "escaped",
     956            "except",
     957            "exists",
     958            "exit",
     959            "explain",
     960            "false",
     961            "fetch",
     962            "first_value",
     963            "float",
     964            "float4",
     965            "float8",
     966            "for",
     967            "force",
     968            "foreign",
     969            "from",
     970            "fulltext",
     971            "function",
     972            "generated",
     973            "get",
     974            "grant",
     975            "group",
     976            "grouping",
     977            "groups",
     978            "having",
     979            "high_priority",
     980            "hour_microsecond",
     981            "hour_minute",
     982            "hour_second",
     983            "if",
     984            "ignore",
     985            "in",
     986            "index",
     987            "infile",
     988            "inner",
     989            "inout",
     990            "insensitive",
     991            "insert",
     992            "int",
     993            "int1",
     994            "int2",
     995            "int3",
     996            "int4",
     997            "int8",
     998            "integer",
     999            "intersect",
    1000            "interval",
    1001            "into",
    1002            "io_after_gtids",
    1003            "io_before_gtids",
    1004            "is",
    1005            "iterate",
    1006            "join",
    1007            "json_table",
    1008            "key",
    1009            "keys",
    1010            "kill",
    1011            "lag",
    1012            "last_value",
    1013            "lateral",
    1014            "lead",
    1015            "leading",
    1016            "leave",
    1017            "left",
    1018            "like",
    1019            "limit",
    1020            "linear",
    1021            "lines",
    1022            "load",
    1023            "localtime",
    1024            "localtimestamp",
    1025            "lock",
    1026            "long",
    1027            "longblob",
    1028            "longtext",
    1029            "loop",
    1030            "low_priority",
    1031            "master_bind",
    1032            "master_ssl_verify_server_cert",
    1033            "match",
    1034            "maxvalue",
    1035            "mediumblob",
    1036            "mediumint",
    1037            "mediumtext",
    1038            "middleint",
    1039            "minute_microsecond",
    1040            "minute_second",
    1041            "mod",
    1042            "modifies",
    1043            "natural",
    1044            "not",
    1045            "no_write_to_binlog",
    1046            "nth_value",
    1047            "ntile",
    1048            "null",
    1049            "numeric",
    1050            "of",
    1051            "on",
    1052            "optimize",
    1053            "optimizer_costs",
    1054            "option",
    1055            "optionally",
    1056            "or",
    1057            "order",
    1058            "out",
    1059            "outer",
    1060            "outfile",
    1061            "over",
    1062            "partition",
    1063            "percent_rank",
    1064            "precision",
    1065            "primary",
    1066            "procedure",
    1067            "purge",
    1068            "range",
    1069            "rank",
    1070            "read",
    1071            "reads",
    1072            "read_write",
    1073            "real",
    1074            "recursive",
    1075            "references",
    1076            "regexp",
    1077            "release",
    1078            "rename",
    1079            "repeat",
    1080            "replace",
    1081            "require",
    1082            "resignal",
    1083            "restrict",
    1084            "return",
    1085            "revoke",
    1086            "right",
    1087            "rlike",
    1088            "row",
    1089            "rows",
    1090            "row_number",
    1091            "schema",
    1092            "schemas",
    1093            "second_microsecond",
    1094            "select",
    1095            "sensitive",
    1096            "separator",
    1097            "set",
    1098            "show",
    1099            "signal",
    1100            "smallint",
    1101            "spatial",
    1102            "specific",
    1103            "sql",
    1104            "sqlexception",
    1105            "sqlstate",
    1106            "sqlwarning",
    1107            "sql_big_result",
    1108            "sql_calc_found_rows",
    1109            "sql_small_result",
    1110            "ssl",
    1111            "starting",
    1112            "stored",
    1113            "straight_join",
    1114            "system",
    1115            "table",
    1116            "terminated",
    1117            "then",
    1118            "tinyblob",
    1119            "tinyint",
    1120            "tinytext",
    1121            "to",
    1122            "trailing",
    1123            "trigger",
    1124            "true",
    1125            "undo",
    1126            "union",
    1127            "unique",
    1128            "unlock",
    1129            "unsigned",
    1130            "update",
    1131            "usage",
    1132            "use",
    1133            "using",
    1134            "utc_date",
    1135            "utc_time",
    1136            "utc_timestamp",
    1137            "values",
    1138            "varbinary",
    1139            "varchar",
    1140            "varcharacter",
    1141            "varying",
    1142            "virtual",
    1143            "when",
    1144            "where",
    1145            "while",
    1146            "window",
    1147            "with",
    1148            "write",
    1149            "xor",
    1150            "year_month",
    1151            "zerofill",
    1152        }
    1153
    1154        def array_sql(self, expression: exp.Array) -> str:
    1155            self.unsupported("Arrays are not supported by MySQL")
    1156            return self.function_fallback_sql(expression)
    1157
    1158        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1159            self.unsupported("Array operations are not supported by MySQL")
    1160            return self.function_fallback_sql(expression)
    1161
    1162        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1163            return self.func("CONCAT", *expression.flatten())
    1164
    1165        def extract_sql(self, expression: exp.Extract) -> str:
    1166            unit = expression.name
    1167            if unit and unit.lower() == "epoch":
    1168                return self.func("UNIX_TIMESTAMP", expression.expression)
    1169
    1170            return super().extract_sql(expression)
    1171
    1172        def datatype_sql(self, expression: exp.DataType) -> str:
    1173            if (
    1174                self.VARCHAR_REQUIRES_SIZE
    1175                and expression.is_type(exp.DataType.Type.VARCHAR)
    1176                and not expression.expressions
    1177            ):
    1178                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1179                return "TEXT"
    1180
    1181            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1182            result = super().datatype_sql(expression)
    1183            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1184                result = f"{result} UNSIGNED"
    1185
    1186            return result
    1187
    1188        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1189            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1190
    1191        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1192            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1193                return self.func("TIMESTAMP", expression.this)
    1194
    1195            to = self.CAST_MAPPING.get(expression.to.this)
    1196
    1197            if to:
    1198                expression.to.set("this", to)
    1199            return super().cast_sql(expression)
    1200
    1201        def show_sql(self, expression: exp.Show) -> str:
    1202            this = f" {expression.name}"
    1203            full = " FULL" if expression.args.get("full") else ""
    1204            global_ = " GLOBAL" if expression.args.get("global") else ""
    1205
    1206            target = self.sql(expression, "target")
    1207            target = f" {target}" if target else ""
    1208            if expression.name in ("COLUMNS", "INDEX"):
    1209                target = f" FROM{target}"
    1210            elif expression.name == "GRANTS":
    1211                target = f" FOR{target}"
    1212
    1213            db = self._prefixed_sql("FROM", expression, "db")
    1214
    1215            like = self._prefixed_sql("LIKE", expression, "like")
    1216            where = self.sql(expression, "where")
    1217
    1218            types = self.expressions(expression, key="types")
    1219            types = f" {types}" if types else types
    1220            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1221
    1222            if expression.name == "PROFILE":
    1223                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1224                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1225            else:
    1226                offset = ""
    1227                limit = self._oldstyle_limit_sql(expression)
    1228
    1229            log = self._prefixed_sql("IN", expression, "log")
    1230            position = self._prefixed_sql("FROM", expression, "position")
    1231
    1232            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1233
    1234            if expression.name == "ENGINE":
    1235                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1236            else:
    1237                mutex_or_status = ""
    1238
    1239            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1240
    1241        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1242            dtype = self.sql(expression, "dtype")
    1243            if not dtype:
    1244                return super().altercolumn_sql(expression)
    1245
    1246            this = self.sql(expression, "this")
    1247            return f"MODIFY COLUMN {this} {dtype}"
    1248
    1249        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1250            sql = self.sql(expression, arg)
    1251            return f" {prefix} {sql}" if sql else ""
    1252
    1253        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1254            limit = self.sql(expression, "limit")
    1255            offset = self.sql(expression, "offset")
    1256            if limit:
    1257                limit_offset = f"{offset}, {limit}" if offset else limit
    1258                return f" LIMIT {limit_offset}"
    1259            return ""
    1260
    1261        def chr_sql(self, expression: exp.Chr) -> str:
    1262            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1263            charset = expression.args.get("charset")
    1264            using = f" USING {self.sql(charset)}" if charset else ""
    1265            return f"CHAR({this}{using})"
    1266
    1267        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1268            unit = expression.args.get("unit")
    1269
    1270            # Pick an old-enough date to avoid negative timestamp diffs
    1271            start_ts = "'0000-01-01 00:00:00'"
    1272
    1273            # Source: https://stackoverflow.com/a/32955740
    1274            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1275            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1276            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1277
    1278            return self.sql(dateadd)
    1279
    1280        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1281            from_tz = expression.args.get("source_tz")
    1282            to_tz = expression.args.get("target_tz")
    1283            dt = expression.args.get("timestamp")
    1284
    1285            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1286
    1287        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1288            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1289            return self.sql(expression.this)
    1290
    1291        def isascii_sql(self, expression: exp.IsAscii) -> str:
    1292            return f"REGEXP_LIKE({self.sql(expression.this)}, '^[[:ascii:]]*$')"
    1293
    1294        @unsupported_args("this")
    1295        def currentschema_sql(self, expression: exp.CurrentSchema) -> str:
    1296            return self.func("SCHEMA")

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

    116def date_add_sql(
    117    kind: str,
    118) -> t.Callable[[generator.Generator, exp.Expression], str]:
    119    def func(self: generator.Generator, expression: exp.Expression) -> str:
    120        return self.func(
    121            f"DATE_{kind}",
    122            expression.this,
    123            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
    124        )
    125
    126    return func

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

     149class MySQL(Dialect):
     150    PROMOTE_TO_INFERRED_DATETIME_TYPE = True
     151
     152    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
     153    IDENTIFIERS_CAN_START_WITH_DIGIT = True
     154
     155    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
     156    # behavior on Linux systems. For MacOS and Windows systems, one can override this
     157    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
     158    #
     159    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
     160    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
     161
     162    TIME_FORMAT = "'%Y-%m-%d %T'"
     163    DPIPE_IS_STRING_CONCAT = False
     164    SUPPORTS_USER_DEFINED_TYPES = False
     165    SUPPORTS_SEMI_ANTI_JOIN = False
     166    SAFE_DIVISION = True
     167
     168    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
     169    TIME_MAPPING = {
     170        "%M": "%B",
     171        "%c": "%-m",
     172        "%e": "%-d",
     173        "%h": "%I",
     174        "%i": "%M",
     175        "%s": "%S",
     176        "%u": "%W",
     177        "%k": "%-H",
     178        "%l": "%-I",
     179        "%T": "%H:%M:%S",
     180        "%W": "%A",
     181    }
     182
     183    class Tokenizer(tokens.Tokenizer):
     184        QUOTES = ["'", '"']
     185        COMMENTS = ["--", "#", ("/*", "*/")]
     186        IDENTIFIERS = ["`"]
     187        STRING_ESCAPES = ["'", '"', "\\"]
     188        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
     189        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
     190
     191        KEYWORDS = {
     192            **tokens.Tokenizer.KEYWORDS,
     193            "CHARSET": TokenType.CHARACTER_SET,
     194            # The DESCRIBE and EXPLAIN statements are synonyms.
     195            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
     196            "BLOB": TokenType.BLOB,
     197            "EXPLAIN": TokenType.DESCRIBE,
     198            "FORCE": TokenType.FORCE,
     199            "IGNORE": TokenType.IGNORE,
     200            "KEY": TokenType.KEY,
     201            "LOCK TABLES": TokenType.COMMAND,
     202            "LONGBLOB": TokenType.LONGBLOB,
     203            "LONGTEXT": TokenType.LONGTEXT,
     204            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
     205            "TINYBLOB": TokenType.TINYBLOB,
     206            "TINYTEXT": TokenType.TINYTEXT,
     207            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
     208            "MEDIUMINT": TokenType.MEDIUMINT,
     209            "MEMBER OF": TokenType.MEMBER_OF,
     210            "SEPARATOR": TokenType.SEPARATOR,
     211            "SERIAL": TokenType.SERIAL,
     212            "START": TokenType.BEGIN,
     213            "SIGNED": TokenType.BIGINT,
     214            "SIGNED INTEGER": TokenType.BIGINT,
     215            "UNLOCK TABLES": TokenType.COMMAND,
     216            "UNSIGNED": TokenType.UBIGINT,
     217            "UNSIGNED INTEGER": TokenType.UBIGINT,
     218            "YEAR": TokenType.YEAR,
     219            "_ARMSCII8": TokenType.INTRODUCER,
     220            "_ASCII": TokenType.INTRODUCER,
     221            "_BIG5": TokenType.INTRODUCER,
     222            "_BINARY": TokenType.INTRODUCER,
     223            "_CP1250": TokenType.INTRODUCER,
     224            "_CP1251": TokenType.INTRODUCER,
     225            "_CP1256": TokenType.INTRODUCER,
     226            "_CP1257": TokenType.INTRODUCER,
     227            "_CP850": TokenType.INTRODUCER,
     228            "_CP852": TokenType.INTRODUCER,
     229            "_CP866": TokenType.INTRODUCER,
     230            "_CP932": TokenType.INTRODUCER,
     231            "_DEC8": TokenType.INTRODUCER,
     232            "_EUCJPMS": TokenType.INTRODUCER,
     233            "_EUCKR": TokenType.INTRODUCER,
     234            "_GB18030": TokenType.INTRODUCER,
     235            "_GB2312": TokenType.INTRODUCER,
     236            "_GBK": TokenType.INTRODUCER,
     237            "_GEOSTD8": TokenType.INTRODUCER,
     238            "_GREEK": TokenType.INTRODUCER,
     239            "_HEBREW": TokenType.INTRODUCER,
     240            "_HP8": TokenType.INTRODUCER,
     241            "_KEYBCS2": TokenType.INTRODUCER,
     242            "_KOI8R": TokenType.INTRODUCER,
     243            "_KOI8U": TokenType.INTRODUCER,
     244            "_LATIN1": TokenType.INTRODUCER,
     245            "_LATIN2": TokenType.INTRODUCER,
     246            "_LATIN5": TokenType.INTRODUCER,
     247            "_LATIN7": TokenType.INTRODUCER,
     248            "_MACCE": TokenType.INTRODUCER,
     249            "_MACROMAN": TokenType.INTRODUCER,
     250            "_SJIS": TokenType.INTRODUCER,
     251            "_SWE7": TokenType.INTRODUCER,
     252            "_TIS620": TokenType.INTRODUCER,
     253            "_UCS2": TokenType.INTRODUCER,
     254            "_UJIS": TokenType.INTRODUCER,
     255            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
     256            "_UTF8": TokenType.INTRODUCER,
     257            "_UTF16": TokenType.INTRODUCER,
     258            "_UTF16LE": TokenType.INTRODUCER,
     259            "_UTF32": TokenType.INTRODUCER,
     260            "_UTF8MB3": TokenType.INTRODUCER,
     261            "_UTF8MB4": TokenType.INTRODUCER,
     262            "@@": TokenType.SESSION_PARAMETER,
     263        }
     264
     265        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
     266
     267    class Parser(parser.Parser):
     268        FUNC_TOKENS = {
     269            *parser.Parser.FUNC_TOKENS,
     270            TokenType.DATABASE,
     271            TokenType.SCHEMA,
     272            TokenType.VALUES,
     273        }
     274
     275        CONJUNCTION = {
     276            **parser.Parser.CONJUNCTION,
     277            TokenType.DAMP: exp.And,
     278            TokenType.XOR: exp.Xor,
     279        }
     280
     281        DISJUNCTION = {
     282            **parser.Parser.DISJUNCTION,
     283            TokenType.DPIPE: exp.Or,
     284        }
     285
     286        TABLE_ALIAS_TOKENS = (
     287            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     288        )
     289
     290        RANGE_PARSERS = {
     291            **parser.Parser.RANGE_PARSERS,
     292            TokenType.MEMBER_OF: lambda self, this: self.expression(
     293                exp.JSONArrayContains,
     294                this=this,
     295                expression=self._parse_wrapped(self._parse_expression),
     296            ),
     297        }
     298
     299        FUNCTIONS = {
     300            **parser.Parser.FUNCTIONS,
     301            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
     302                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
     303            ),
     304            "CURDATE": exp.CurrentDate.from_arg_list,
     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            "FORMAT": exp.NumberToStr.from_arg_list,
     314            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     315            "ISNULL": isnull_to_is_null,
     316            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
     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            "SCHEMA": exp.CurrentSchema.from_arg_list,
     324            "DATABASE": exp.CurrentSchema.from_arg_list,
     325            "STR_TO_DATE": _str_to_date,
     326            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
     327            "TO_DAYS": lambda args: exp.paren(
     328                exp.DateDiff(
     329                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     330                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
     331                    unit=exp.var("DAY"),
     332                )
     333                + 1
     334            ),
     335            "WEEK": lambda args: exp.Week(
     336                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
     337            ),
     338            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     339            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     340        }
     341
     342        FUNCTION_PARSERS = {
     343            **parser.Parser.FUNCTION_PARSERS,
     344            "CHAR": lambda self: self.expression(
     345                exp.Chr,
     346                expressions=self._parse_csv(self._parse_assignment),
     347                charset=self._match(TokenType.USING) and self._parse_var(),
     348            ),
     349            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     350            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     351            "VALUES": lambda self: self.expression(
     352                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     353            ),
     354            "JSON_VALUE": lambda self: self._parse_json_value(),
     355        }
     356
     357        STATEMENT_PARSERS = {
     358            **parser.Parser.STATEMENT_PARSERS,
     359            TokenType.SHOW: lambda self: self._parse_show(),
     360        }
     361
     362        SHOW_PARSERS = {
     363            "BINARY LOGS": _show_parser("BINARY LOGS"),
     364            "MASTER LOGS": _show_parser("BINARY LOGS"),
     365            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     366            "CHARACTER SET": _show_parser("CHARACTER SET"),
     367            "CHARSET": _show_parser("CHARACTER SET"),
     368            "COLLATION": _show_parser("COLLATION"),
     369            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     370            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     371            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     372            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     373            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     374            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     375            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     376            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     377            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     378            "DATABASES": _show_parser("DATABASES"),
     379            "SCHEMAS": _show_parser("DATABASES"),
     380            "ENGINE": _show_parser("ENGINE", target=True),
     381            "STORAGE ENGINES": _show_parser("ENGINES"),
     382            "ENGINES": _show_parser("ENGINES"),
     383            "ERRORS": _show_parser("ERRORS"),
     384            "EVENTS": _show_parser("EVENTS"),
     385            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     386            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     387            "GRANTS": _show_parser("GRANTS", target="FOR"),
     388            "INDEX": _show_parser("INDEX", target="FROM"),
     389            "MASTER STATUS": _show_parser("MASTER STATUS"),
     390            "OPEN TABLES": _show_parser("OPEN TABLES"),
     391            "PLUGINS": _show_parser("PLUGINS"),
     392            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     393            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     394            "PRIVILEGES": _show_parser("PRIVILEGES"),
     395            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     396            "PROCESSLIST": _show_parser("PROCESSLIST"),
     397            "PROFILE": _show_parser("PROFILE"),
     398            "PROFILES": _show_parser("PROFILES"),
     399            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     400            "REPLICAS": _show_parser("REPLICAS"),
     401            "SLAVE HOSTS": _show_parser("REPLICAS"),
     402            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     403            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     404            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     405            "SESSION STATUS": _show_parser("STATUS"),
     406            "STATUS": _show_parser("STATUS"),
     407            "TABLE STATUS": _show_parser("TABLE STATUS"),
     408            "FULL TABLES": _show_parser("TABLES", full=True),
     409            "TABLES": _show_parser("TABLES"),
     410            "TRIGGERS": _show_parser("TRIGGERS"),
     411            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     412            "SESSION VARIABLES": _show_parser("VARIABLES"),
     413            "VARIABLES": _show_parser("VARIABLES"),
     414            "WARNINGS": _show_parser("WARNINGS"),
     415        }
     416
     417        PROPERTY_PARSERS = {
     418            **parser.Parser.PROPERTY_PARSERS,
     419            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     420        }
     421
     422        SET_PARSERS = {
     423            **parser.Parser.SET_PARSERS,
     424            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     425            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     426            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     427            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     428            "NAMES": lambda self: self._parse_set_item_names(),
     429        }
     430
     431        CONSTRAINT_PARSERS = {
     432            **parser.Parser.CONSTRAINT_PARSERS,
     433            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     434            "INDEX": lambda self: self._parse_index_constraint(),
     435            "KEY": lambda self: self._parse_index_constraint(),
     436            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     437        }
     438
     439        ALTER_PARSERS = {
     440            **parser.Parser.ALTER_PARSERS,
     441            "MODIFY": lambda self: self._parse_alter_table_alter(),
     442        }
     443
     444        ALTER_ALTER_PARSERS = {
     445            **parser.Parser.ALTER_ALTER_PARSERS,
     446            "INDEX": lambda self: self._parse_alter_table_alter_index(),
     447        }
     448
     449        SCHEMA_UNNAMED_CONSTRAINTS = {
     450            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     451            "FULLTEXT",
     452            "INDEX",
     453            "KEY",
     454            "SPATIAL",
     455        }
     456
     457        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     458            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     459            "BLOCK": ("IO",),
     460            "CONTEXT": ("SWITCHES",),
     461            "PAGE": ("FAULTS",),
     462        }
     463
     464        TYPE_TOKENS = {
     465            *parser.Parser.TYPE_TOKENS,
     466            TokenType.SET,
     467        }
     468
     469        ENUM_TYPE_TOKENS = {
     470            *parser.Parser.ENUM_TYPE_TOKENS,
     471            TokenType.SET,
     472        }
     473
     474        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
     475        OPERATION_MODIFIERS = {
     476            "HIGH_PRIORITY",
     477            "STRAIGHT_JOIN",
     478            "SQL_SMALL_RESULT",
     479            "SQL_BIG_RESULT",
     480            "SQL_BUFFER_RESULT",
     481            "SQL_NO_CACHE",
     482            "SQL_CALC_FOUND_ROWS",
     483        }
     484
     485        LOG_DEFAULTS_TO_LN = True
     486        STRING_ALIASES = True
     487        VALUES_FOLLOWED_BY_PAREN = False
     488        SUPPORTS_PARTITION_SELECTION = True
     489
     490        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     491            this = self._parse_id_var()
     492            if not self._match(TokenType.L_PAREN):
     493                return this
     494
     495            expression = self._parse_number()
     496            self._match_r_paren()
     497            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     498
     499        def _parse_index_constraint(
     500            self, kind: t.Optional[str] = None
     501        ) -> exp.IndexColumnConstraint:
     502            if kind:
     503                self._match_texts(("INDEX", "KEY"))
     504
     505            this = self._parse_id_var(any_token=False)
     506            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     507            expressions = self._parse_wrapped_csv(self._parse_ordered)
     508
     509            options = []
     510            while True:
     511                if self._match_text_seq("KEY_BLOCK_SIZE"):
     512                    self._match(TokenType.EQ)
     513                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     514                elif self._match(TokenType.USING):
     515                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     516                elif self._match_text_seq("WITH", "PARSER"):
     517                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     518                elif self._match(TokenType.COMMENT):
     519                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     520                elif self._match_text_seq("VISIBLE"):
     521                    opt = exp.IndexConstraintOption(visible=True)
     522                elif self._match_text_seq("INVISIBLE"):
     523                    opt = exp.IndexConstraintOption(visible=False)
     524                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     525                    self._match(TokenType.EQ)
     526                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     527                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     528                    self._match(TokenType.EQ)
     529                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     530                else:
     531                    opt = None
     532
     533                if not opt:
     534                    break
     535
     536                options.append(opt)
     537
     538            return self.expression(
     539                exp.IndexColumnConstraint,
     540                this=this,
     541                expressions=expressions,
     542                kind=kind,
     543                index_type=index_type,
     544                options=options,
     545            )
     546
     547        def _parse_show_mysql(
     548            self,
     549            this: str,
     550            target: bool | str = False,
     551            full: t.Optional[bool] = None,
     552            global_: t.Optional[bool] = None,
     553        ) -> exp.Show:
     554            if target:
     555                if isinstance(target, str):
     556                    self._match_text_seq(target)
     557                target_id = self._parse_id_var()
     558            else:
     559                target_id = None
     560
     561            log = self._parse_string() if self._match_text_seq("IN") else None
     562
     563            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     564                position = self._parse_number() if self._match_text_seq("FROM") else None
     565                db = None
     566            else:
     567                position = None
     568                db = None
     569
     570                if self._match(TokenType.FROM):
     571                    db = self._parse_id_var()
     572                elif self._match(TokenType.DOT):
     573                    db = target_id
     574                    target_id = self._parse_id_var()
     575
     576            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     577
     578            like = self._parse_string() if self._match_text_seq("LIKE") else None
     579            where = self._parse_where()
     580
     581            if this == "PROFILE":
     582                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     583                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     584                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     585                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     586            else:
     587                types, query = None, None
     588                offset, limit = self._parse_oldstyle_limit()
     589
     590            mutex = True if self._match_text_seq("MUTEX") else None
     591            mutex = False if self._match_text_seq("STATUS") else mutex
     592
     593            return self.expression(
     594                exp.Show,
     595                this=this,
     596                target=target_id,
     597                full=full,
     598                log=log,
     599                position=position,
     600                db=db,
     601                channel=channel,
     602                like=like,
     603                where=where,
     604                types=types,
     605                query=query,
     606                offset=offset,
     607                limit=limit,
     608                mutex=mutex,
     609                **{"global": global_},  # type: ignore
     610            )
     611
     612        def _parse_oldstyle_limit(
     613            self,
     614        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     615            limit = None
     616            offset = None
     617            if self._match_text_seq("LIMIT"):
     618                parts = self._parse_csv(self._parse_number)
     619                if len(parts) == 1:
     620                    limit = parts[0]
     621                elif len(parts) == 2:
     622                    limit = parts[1]
     623                    offset = parts[0]
     624
     625            return offset, limit
     626
     627        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     628            this = self._parse_string() or self._parse_unquoted_field()
     629            return self.expression(exp.SetItem, this=this, kind=kind)
     630
     631        def _parse_set_item_names(self) -> exp.Expression:
     632            charset = self._parse_string() or self._parse_unquoted_field()
     633            if self._match_text_seq("COLLATE"):
     634                collate = self._parse_string() or self._parse_unquoted_field()
     635            else:
     636                collate = None
     637
     638            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     639
     640        def _parse_type(
     641            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     642        ) -> t.Optional[exp.Expression]:
     643            # mysql binary is special and can work anywhere, even in order by operations
     644            # it operates like a no paren func
     645            if self._match(TokenType.BINARY, advance=False):
     646                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     647
     648                if isinstance(data_type, exp.DataType):
     649                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     650
     651            return super()._parse_type(
     652                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     653            )
     654
     655        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     656            def concat_exprs(
     657                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     658            ) -> exp.Expression:
     659                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     660                    concat_exprs = [
     661                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     662                    ]
     663                    node.set("expressions", concat_exprs)
     664                    return node
     665                if len(exprs) == 1:
     666                    return exprs[0]
     667                return self.expression(exp.Concat, expressions=args, safe=True)
     668
     669            args = self._parse_csv(self._parse_lambda)
     670
     671            if args:
     672                order = args[-1] if isinstance(args[-1], exp.Order) else None
     673
     674                if order:
     675                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     676                    # remove 'expr' from exp.Order and add it back to args
     677                    args[-1] = order.this
     678                    order.set("this", concat_exprs(order.this, args))
     679
     680                this = order or concat_exprs(args[0], args)
     681            else:
     682                this = None
     683
     684            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     685
     686            return self.expression(exp.GroupConcat, this=this, separator=separator)
     687
     688        def _parse_json_value(self) -> exp.JSONValue:
     689            this = self._parse_bitwise()
     690            self._match(TokenType.COMMA)
     691            path = self._parse_bitwise()
     692
     693            returning = self._match(TokenType.RETURNING) and self._parse_type()
     694
     695            return self.expression(
     696                exp.JSONValue,
     697                this=this,
     698                path=self.dialect.to_json_path(path),
     699                returning=returning,
     700                on_condition=self._parse_on_condition(),
     701            )
     702
     703        def _parse_alter_table_alter_index(self) -> exp.AlterIndex:
     704            index = self._parse_field(any_token=True)
     705
     706            if self._match_text_seq("VISIBLE"):
     707                visible = True
     708            elif self._match_text_seq("INVISIBLE"):
     709                visible = False
     710            else:
     711                visible = None
     712
     713            return self.expression(exp.AlterIndex, this=index, visible=visible)
     714
     715    class Generator(generator.Generator):
     716        INTERVAL_ALLOWS_PLURAL_FORM = False
     717        LOCKING_READS_SUPPORTED = True
     718        NULL_ORDERING_SUPPORTED = None
     719        JOIN_HINTS = False
     720        TABLE_HINTS = True
     721        DUPLICATE_KEY_UPDATE_WITH_SET = False
     722        QUERY_HINT_SEP = " "
     723        VALUES_AS_TABLE = False
     724        NVL2_SUPPORTED = False
     725        LAST_DAY_SUPPORTS_DATE_PART = False
     726        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     727        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     728        JSON_KEY_VALUE_PAIR_SEP = ","
     729        SUPPORTS_TO_NUMBER = False
     730        PARSE_JSON_NAME: t.Optional[str] = None
     731        PAD_FILL_PATTERN_IS_REQUIRED = True
     732        WRAP_DERIVED_VALUES = False
     733        VARCHAR_REQUIRES_SIZE = True
     734        SUPPORTS_MEDIAN = False
     735
     736        TRANSFORMS = {
     737            **generator.Generator.TRANSFORMS,
     738            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     739            exp.CurrentDate: no_paren_current_date_sql,
     740            exp.DateDiff: _remove_ts_or_ds_to_date(
     741                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     742            ),
     743            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     744            exp.DateStrToDate: datestrtodate_sql,
     745            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     746            exp.DateTrunc: _date_trunc_sql,
     747            exp.Day: _remove_ts_or_ds_to_date(),
     748            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     749            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     750            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     751            exp.GroupConcat: lambda self,
     752            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     753            exp.ILike: no_ilike_sql,
     754            exp.JSONExtractScalar: arrow_json_extract_sql,
     755            exp.Length: length_or_char_length_sql,
     756            exp.LogicalOr: rename_func("MAX"),
     757            exp.LogicalAnd: rename_func("MIN"),
     758            exp.Max: max_or_greatest,
     759            exp.Min: min_or_least,
     760            exp.Month: _remove_ts_or_ds_to_date(),
     761            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     762            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     763            exp.NumberToStr: rename_func("FORMAT"),
     764            exp.Pivot: no_pivot_sql,
     765            exp.Select: transforms.preprocess(
     766                [
     767                    transforms.eliminate_distinct_on,
     768                    transforms.eliminate_semi_and_anti_joins,
     769                    transforms.eliminate_qualify,
     770                    transforms.eliminate_full_outer_join,
     771                    transforms.unnest_generate_date_array_using_recursive_cte,
     772                ]
     773            ),
     774            exp.StrPosition: lambda self, e: strposition_sql(
     775                self, e, func_name="LOCATE", supports_position=True
     776            ),
     777            exp.StrToDate: _str_to_date_sql,
     778            exp.StrToTime: _str_to_date_sql,
     779            exp.Stuff: rename_func("INSERT"),
     780            exp.TableSample: no_tablesample_sql,
     781            exp.TimeFromParts: rename_func("MAKETIME"),
     782            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     783            exp.TimestampDiff: lambda self, e: self.func(
     784                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     785            ),
     786            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     787            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     788            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     789                self,
     790                e,
     791                include_precision=not e.args.get("zone"),
     792            ),
     793            exp.TimeToStr: _remove_ts_or_ds_to_date(
     794                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     795            ),
     796            exp.Trim: trim_sql,
     797            exp.TryCast: no_trycast_sql,
     798            exp.TsOrDsAdd: date_add_sql("ADD"),
     799            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     800            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     801            exp.Unicode: lambda self, e: f"ORD(CONVERT({self.sql(e.this)} USING utf32))",
     802            exp.UnixToTime: _unix_to_time_sql,
     803            exp.Week: _remove_ts_or_ds_to_date(),
     804            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     805            exp.Year: _remove_ts_or_ds_to_date(),
     806        }
     807
     808        UNSIGNED_TYPE_MAPPING = {
     809            exp.DataType.Type.UBIGINT: "BIGINT",
     810            exp.DataType.Type.UINT: "INT",
     811            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     812            exp.DataType.Type.USMALLINT: "SMALLINT",
     813            exp.DataType.Type.UTINYINT: "TINYINT",
     814            exp.DataType.Type.UDECIMAL: "DECIMAL",
     815            exp.DataType.Type.UDOUBLE: "DOUBLE",
     816        }
     817
     818        TIMESTAMP_TYPE_MAPPING = {
     819            exp.DataType.Type.DATETIME2: "DATETIME",
     820            exp.DataType.Type.SMALLDATETIME: "DATETIME",
     821            exp.DataType.Type.TIMESTAMP: "DATETIME",
     822            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
     823            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     824            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     825        }
     826
     827        TYPE_MAPPING = {
     828            **generator.Generator.TYPE_MAPPING,
     829            **UNSIGNED_TYPE_MAPPING,
     830            **TIMESTAMP_TYPE_MAPPING,
     831        }
     832
     833        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     834        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     835        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     836        TYPE_MAPPING.pop(exp.DataType.Type.BLOB)
     837        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     838        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     839        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     840
     841        PROPERTIES_LOCATION = {
     842            **generator.Generator.PROPERTIES_LOCATION,
     843            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     844            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     845        }
     846
     847        LIMIT_FETCH = "LIMIT"
     848
     849        LIMIT_ONLY_LITERALS = True
     850
     851        CHAR_CAST_MAPPING = dict.fromkeys(
     852            (
     853                exp.DataType.Type.LONGTEXT,
     854                exp.DataType.Type.LONGBLOB,
     855                exp.DataType.Type.MEDIUMBLOB,
     856                exp.DataType.Type.MEDIUMTEXT,
     857                exp.DataType.Type.TEXT,
     858                exp.DataType.Type.TINYBLOB,
     859                exp.DataType.Type.TINYTEXT,
     860                exp.DataType.Type.VARCHAR,
     861            ),
     862            "CHAR",
     863        )
     864        SIGNED_CAST_MAPPING = dict.fromkeys(
     865            (
     866                exp.DataType.Type.BIGINT,
     867                exp.DataType.Type.BOOLEAN,
     868                exp.DataType.Type.INT,
     869                exp.DataType.Type.SMALLINT,
     870                exp.DataType.Type.TINYINT,
     871                exp.DataType.Type.MEDIUMINT,
     872            ),
     873            "SIGNED",
     874        )
     875
     876        # MySQL doesn't support many datatypes in cast.
     877        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     878        CAST_MAPPING = {
     879            **CHAR_CAST_MAPPING,
     880            **SIGNED_CAST_MAPPING,
     881            exp.DataType.Type.UBIGINT: "UNSIGNED",
     882        }
     883
     884        TIMESTAMP_FUNC_TYPES = {
     885            exp.DataType.Type.TIMESTAMPTZ,
     886            exp.DataType.Type.TIMESTAMPLTZ,
     887        }
     888
     889        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     890        RESERVED_KEYWORDS = {
     891            "accessible",
     892            "add",
     893            "all",
     894            "alter",
     895            "analyze",
     896            "and",
     897            "as",
     898            "asc",
     899            "asensitive",
     900            "before",
     901            "between",
     902            "bigint",
     903            "binary",
     904            "blob",
     905            "both",
     906            "by",
     907            "call",
     908            "cascade",
     909            "case",
     910            "change",
     911            "char",
     912            "character",
     913            "check",
     914            "collate",
     915            "column",
     916            "condition",
     917            "constraint",
     918            "continue",
     919            "convert",
     920            "create",
     921            "cross",
     922            "cube",
     923            "cume_dist",
     924            "current_date",
     925            "current_time",
     926            "current_timestamp",
     927            "current_user",
     928            "cursor",
     929            "database",
     930            "databases",
     931            "day_hour",
     932            "day_microsecond",
     933            "day_minute",
     934            "day_second",
     935            "dec",
     936            "decimal",
     937            "declare",
     938            "default",
     939            "delayed",
     940            "delete",
     941            "dense_rank",
     942            "desc",
     943            "describe",
     944            "deterministic",
     945            "distinct",
     946            "distinctrow",
     947            "div",
     948            "double",
     949            "drop",
     950            "dual",
     951            "each",
     952            "else",
     953            "elseif",
     954            "empty",
     955            "enclosed",
     956            "escaped",
     957            "except",
     958            "exists",
     959            "exit",
     960            "explain",
     961            "false",
     962            "fetch",
     963            "first_value",
     964            "float",
     965            "float4",
     966            "float8",
     967            "for",
     968            "force",
     969            "foreign",
     970            "from",
     971            "fulltext",
     972            "function",
     973            "generated",
     974            "get",
     975            "grant",
     976            "group",
     977            "grouping",
     978            "groups",
     979            "having",
     980            "high_priority",
     981            "hour_microsecond",
     982            "hour_minute",
     983            "hour_second",
     984            "if",
     985            "ignore",
     986            "in",
     987            "index",
     988            "infile",
     989            "inner",
     990            "inout",
     991            "insensitive",
     992            "insert",
     993            "int",
     994            "int1",
     995            "int2",
     996            "int3",
     997            "int4",
     998            "int8",
     999            "integer",
    1000            "intersect",
    1001            "interval",
    1002            "into",
    1003            "io_after_gtids",
    1004            "io_before_gtids",
    1005            "is",
    1006            "iterate",
    1007            "join",
    1008            "json_table",
    1009            "key",
    1010            "keys",
    1011            "kill",
    1012            "lag",
    1013            "last_value",
    1014            "lateral",
    1015            "lead",
    1016            "leading",
    1017            "leave",
    1018            "left",
    1019            "like",
    1020            "limit",
    1021            "linear",
    1022            "lines",
    1023            "load",
    1024            "localtime",
    1025            "localtimestamp",
    1026            "lock",
    1027            "long",
    1028            "longblob",
    1029            "longtext",
    1030            "loop",
    1031            "low_priority",
    1032            "master_bind",
    1033            "master_ssl_verify_server_cert",
    1034            "match",
    1035            "maxvalue",
    1036            "mediumblob",
    1037            "mediumint",
    1038            "mediumtext",
    1039            "middleint",
    1040            "minute_microsecond",
    1041            "minute_second",
    1042            "mod",
    1043            "modifies",
    1044            "natural",
    1045            "not",
    1046            "no_write_to_binlog",
    1047            "nth_value",
    1048            "ntile",
    1049            "null",
    1050            "numeric",
    1051            "of",
    1052            "on",
    1053            "optimize",
    1054            "optimizer_costs",
    1055            "option",
    1056            "optionally",
    1057            "or",
    1058            "order",
    1059            "out",
    1060            "outer",
    1061            "outfile",
    1062            "over",
    1063            "partition",
    1064            "percent_rank",
    1065            "precision",
    1066            "primary",
    1067            "procedure",
    1068            "purge",
    1069            "range",
    1070            "rank",
    1071            "read",
    1072            "reads",
    1073            "read_write",
    1074            "real",
    1075            "recursive",
    1076            "references",
    1077            "regexp",
    1078            "release",
    1079            "rename",
    1080            "repeat",
    1081            "replace",
    1082            "require",
    1083            "resignal",
    1084            "restrict",
    1085            "return",
    1086            "revoke",
    1087            "right",
    1088            "rlike",
    1089            "row",
    1090            "rows",
    1091            "row_number",
    1092            "schema",
    1093            "schemas",
    1094            "second_microsecond",
    1095            "select",
    1096            "sensitive",
    1097            "separator",
    1098            "set",
    1099            "show",
    1100            "signal",
    1101            "smallint",
    1102            "spatial",
    1103            "specific",
    1104            "sql",
    1105            "sqlexception",
    1106            "sqlstate",
    1107            "sqlwarning",
    1108            "sql_big_result",
    1109            "sql_calc_found_rows",
    1110            "sql_small_result",
    1111            "ssl",
    1112            "starting",
    1113            "stored",
    1114            "straight_join",
    1115            "system",
    1116            "table",
    1117            "terminated",
    1118            "then",
    1119            "tinyblob",
    1120            "tinyint",
    1121            "tinytext",
    1122            "to",
    1123            "trailing",
    1124            "trigger",
    1125            "true",
    1126            "undo",
    1127            "union",
    1128            "unique",
    1129            "unlock",
    1130            "unsigned",
    1131            "update",
    1132            "usage",
    1133            "use",
    1134            "using",
    1135            "utc_date",
    1136            "utc_time",
    1137            "utc_timestamp",
    1138            "values",
    1139            "varbinary",
    1140            "varchar",
    1141            "varcharacter",
    1142            "varying",
    1143            "virtual",
    1144            "when",
    1145            "where",
    1146            "while",
    1147            "window",
    1148            "with",
    1149            "write",
    1150            "xor",
    1151            "year_month",
    1152            "zerofill",
    1153        }
    1154
    1155        def array_sql(self, expression: exp.Array) -> str:
    1156            self.unsupported("Arrays are not supported by MySQL")
    1157            return self.function_fallback_sql(expression)
    1158
    1159        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1160            self.unsupported("Array operations are not supported by MySQL")
    1161            return self.function_fallback_sql(expression)
    1162
    1163        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1164            return self.func("CONCAT", *expression.flatten())
    1165
    1166        def extract_sql(self, expression: exp.Extract) -> str:
    1167            unit = expression.name
    1168            if unit and unit.lower() == "epoch":
    1169                return self.func("UNIX_TIMESTAMP", expression.expression)
    1170
    1171            return super().extract_sql(expression)
    1172
    1173        def datatype_sql(self, expression: exp.DataType) -> str:
    1174            if (
    1175                self.VARCHAR_REQUIRES_SIZE
    1176                and expression.is_type(exp.DataType.Type.VARCHAR)
    1177                and not expression.expressions
    1178            ):
    1179                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1180                return "TEXT"
    1181
    1182            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1183            result = super().datatype_sql(expression)
    1184            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1185                result = f"{result} UNSIGNED"
    1186
    1187            return result
    1188
    1189        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1190            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1191
    1192        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1193            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1194                return self.func("TIMESTAMP", expression.this)
    1195
    1196            to = self.CAST_MAPPING.get(expression.to.this)
    1197
    1198            if to:
    1199                expression.to.set("this", to)
    1200            return super().cast_sql(expression)
    1201
    1202        def show_sql(self, expression: exp.Show) -> str:
    1203            this = f" {expression.name}"
    1204            full = " FULL" if expression.args.get("full") else ""
    1205            global_ = " GLOBAL" if expression.args.get("global") else ""
    1206
    1207            target = self.sql(expression, "target")
    1208            target = f" {target}" if target else ""
    1209            if expression.name in ("COLUMNS", "INDEX"):
    1210                target = f" FROM{target}"
    1211            elif expression.name == "GRANTS":
    1212                target = f" FOR{target}"
    1213
    1214            db = self._prefixed_sql("FROM", expression, "db")
    1215
    1216            like = self._prefixed_sql("LIKE", expression, "like")
    1217            where = self.sql(expression, "where")
    1218
    1219            types = self.expressions(expression, key="types")
    1220            types = f" {types}" if types else types
    1221            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1222
    1223            if expression.name == "PROFILE":
    1224                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1225                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1226            else:
    1227                offset = ""
    1228                limit = self._oldstyle_limit_sql(expression)
    1229
    1230            log = self._prefixed_sql("IN", expression, "log")
    1231            position = self._prefixed_sql("FROM", expression, "position")
    1232
    1233            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1234
    1235            if expression.name == "ENGINE":
    1236                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1237            else:
    1238                mutex_or_status = ""
    1239
    1240            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1241
    1242        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1243            dtype = self.sql(expression, "dtype")
    1244            if not dtype:
    1245                return super().altercolumn_sql(expression)
    1246
    1247            this = self.sql(expression, "this")
    1248            return f"MODIFY COLUMN {this} {dtype}"
    1249
    1250        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1251            sql = self.sql(expression, arg)
    1252            return f" {prefix} {sql}" if sql else ""
    1253
    1254        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1255            limit = self.sql(expression, "limit")
    1256            offset = self.sql(expression, "offset")
    1257            if limit:
    1258                limit_offset = f"{offset}, {limit}" if offset else limit
    1259                return f" LIMIT {limit_offset}"
    1260            return ""
    1261
    1262        def chr_sql(self, expression: exp.Chr) -> str:
    1263            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1264            charset = expression.args.get("charset")
    1265            using = f" USING {self.sql(charset)}" if charset else ""
    1266            return f"CHAR({this}{using})"
    1267
    1268        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1269            unit = expression.args.get("unit")
    1270
    1271            # Pick an old-enough date to avoid negative timestamp diffs
    1272            start_ts = "'0000-01-01 00:00:00'"
    1273
    1274            # Source: https://stackoverflow.com/a/32955740
    1275            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1276            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1277            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1278
    1279            return self.sql(dateadd)
    1280
    1281        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1282            from_tz = expression.args.get("source_tz")
    1283            to_tz = expression.args.get("target_tz")
    1284            dt = expression.args.get("timestamp")
    1285
    1286            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1287
    1288        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1289            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1290            return self.sql(expression.this)
    1291
    1292        def isascii_sql(self, expression: exp.IsAscii) -> str:
    1293            return f"REGEXP_LIKE({self.sql(expression.this)}, '^[[:ascii:]]*$')"
    1294
    1295        @unsupported_args("this")
    1296        def currentschema_sql(self, expression: exp.CurrentSchema) -> str:
    1297            return self.func("SCHEMA")

PROMOTE_TO_INFERRED_DATETIME_TYPE = True

This flag is used in the optimizer's canonicalize rule and determines whether x will be promoted to the literal's type in x::DATE < '2020-01-01 12:05:03' (i.e., DATETIME). When false, the literal is cast to x's type to match it instead.

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 = {}
INVERSE_CREATABLE_KIND_MAPPING: dict[str, str] = {}
ESCAPED_SEQUENCES: Dict[str, str] = {'\x07': '\\a', '\x08': '\\b', '\x0c': '\\f', '\n': '\\n', '\r': '\\r', '\t': '\\t', '\x0b': '\\v', '\\': '\\\\'}
QUOTE_START = "'"
QUOTE_END = "'"
IDENTIFIER_START = '`'
IDENTIFIER_END = '`'
BIT_START: Optional[str] = "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
class MySQL.Tokenizer(sqlglot.tokens.Tokenizer): View Source

    183    class Tokenizer(tokens.Tokenizer):
    184        QUOTES = ["'", '"']
    185        COMMENTS = ["--", "#", ("/*", "*/")]
    186        IDENTIFIERS = ["`"]
    187        STRING_ESCAPES = ["'", '"', "\\"]
    188        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
    189        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
    190
    191        KEYWORDS = {
    192            **tokens.Tokenizer.KEYWORDS,
    193            "CHARSET": TokenType.CHARACTER_SET,
    194            # The DESCRIBE and EXPLAIN statements are synonyms.
    195            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
    196            "BLOB": TokenType.BLOB,
    197            "EXPLAIN": TokenType.DESCRIBE,
    198            "FORCE": TokenType.FORCE,
    199            "IGNORE": TokenType.IGNORE,
    200            "KEY": TokenType.KEY,
    201            "LOCK TABLES": TokenType.COMMAND,
    202            "LONGBLOB": TokenType.LONGBLOB,
    203            "LONGTEXT": TokenType.LONGTEXT,
    204            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    205            "TINYBLOB": TokenType.TINYBLOB,
    206            "TINYTEXT": TokenType.TINYTEXT,
    207            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    208            "MEDIUMINT": TokenType.MEDIUMINT,
    209            "MEMBER OF": TokenType.MEMBER_OF,
    210            "SEPARATOR": TokenType.SEPARATOR,
    211            "SERIAL": TokenType.SERIAL,
    212            "START": TokenType.BEGIN,
    213            "SIGNED": TokenType.BIGINT,
    214            "SIGNED INTEGER": TokenType.BIGINT,
    215            "UNLOCK TABLES": TokenType.COMMAND,
    216            "UNSIGNED": TokenType.UBIGINT,
    217            "UNSIGNED INTEGER": TokenType.UBIGINT,
    218            "YEAR": TokenType.YEAR,
    219            "_ARMSCII8": TokenType.INTRODUCER,
    220            "_ASCII": TokenType.INTRODUCER,
    221            "_BIG5": TokenType.INTRODUCER,
    222            "_BINARY": TokenType.INTRODUCER,
    223            "_CP1250": TokenType.INTRODUCER,
    224            "_CP1251": TokenType.INTRODUCER,
    225            "_CP1256": TokenType.INTRODUCER,
    226            "_CP1257": TokenType.INTRODUCER,
    227            "_CP850": TokenType.INTRODUCER,
    228            "_CP852": TokenType.INTRODUCER,
    229            "_CP866": TokenType.INTRODUCER,
    230            "_CP932": TokenType.INTRODUCER,
    231            "_DEC8": TokenType.INTRODUCER,
    232            "_EUCJPMS": TokenType.INTRODUCER,
    233            "_EUCKR": TokenType.INTRODUCER,
    234            "_GB18030": TokenType.INTRODUCER,
    235            "_GB2312": TokenType.INTRODUCER,
    236            "_GBK": TokenType.INTRODUCER,
    237            "_GEOSTD8": TokenType.INTRODUCER,
    238            "_GREEK": TokenType.INTRODUCER,
    239            "_HEBREW": TokenType.INTRODUCER,
    240            "_HP8": TokenType.INTRODUCER,
    241            "_KEYBCS2": TokenType.INTRODUCER,
    242            "_KOI8R": TokenType.INTRODUCER,
    243            "_KOI8U": TokenType.INTRODUCER,
    244            "_LATIN1": TokenType.INTRODUCER,
    245            "_LATIN2": TokenType.INTRODUCER,
    246            "_LATIN5": TokenType.INTRODUCER,
    247            "_LATIN7": TokenType.INTRODUCER,
    248            "_MACCE": TokenType.INTRODUCER,
    249            "_MACROMAN": TokenType.INTRODUCER,
    250            "_SJIS": TokenType.INTRODUCER,
    251            "_SWE7": TokenType.INTRODUCER,
    252            "_TIS620": TokenType.INTRODUCER,
    253            "_UCS2": TokenType.INTRODUCER,
    254            "_UJIS": TokenType.INTRODUCER,
    255            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    256            "_UTF8": TokenType.INTRODUCER,
    257            "_UTF16": TokenType.INTRODUCER,
    258            "_UTF16LE": TokenType.INTRODUCER,
    259            "_UTF32": TokenType.INTRODUCER,
    260            "_UTF8MB3": TokenType.INTRODUCER,
    261            "_UTF8MB4": TokenType.INTRODUCER,
    262            "@@": TokenType.SESSION_PARAMETER,
    263        }
    264
    265        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'>, '~~~': <TokenType.GLOB: 'GLOB'>, '~~': <TokenType.LIKE: 'LIKE'>, '~~*': <TokenType.ILIKE: 'ILIKE'>, '~*': <TokenType.IRLIKE: 'IRLIKE'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.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_SCHEMA': <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, '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'>, 'NAMESPACE': <TokenType.NAMESPACE: 'NAMESPACE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'RENAME': <TokenType.RENAME: 'RENAME'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, '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'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'UHUGEINT': <TokenType.UINT128: 'UINT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'INT256': <TokenType.INT256: 'INT256'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'UINT128': <TokenType.UINT128: 'UINT128'>, 'UINT256': <TokenType.UINT256: 'UINT256'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL32': <TokenType.DECIMAL32: 'DECIMAL32'>, 'DECIMAL64': <TokenType.DECIMAL64: 'DECIMAL64'>, 'DECIMAL128': <TokenType.DECIMAL128: 'DECIMAL128'>, 'DECIMAL256': <TokenType.DECIMAL256: 'DECIMAL256'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'CHAR VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'CHARACTER VARYING': <TokenType.VARCHAR: 'VARCHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.BLOB: 'BLOB'>, '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.ANALYZE: 'ANALYZE'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.DESCRIBE: 'DESCRIBE'>, 'GRANT': <TokenType.GRANT: 'GRANT'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, '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'>, 'SERIAL': <TokenType.SERIAL: 'SERIAL'>, 'START': <TokenType.BEGIN: 'BEGIN'>, 'SIGNED': <TokenType.BIGINT: 'BIGINT'>, 'SIGNED INTEGER': <TokenType.BIGINT: 'BIGINT'>, 'UNLOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'UNSIGNED': <TokenType.UBIGINT: 'UBIGINT'>, 'UNSIGNED INTEGER': <TokenType.UBIGINT: 'UBIGINT'>, 'YEAR': <TokenType.YEAR: 'YEAR'>, '_ARMSCII8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_ASCII': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BIG5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BINARY': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1250': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1251': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1256': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1257': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP850': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP852': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP866': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP932': <TokenType.INTRODUCER: 'INTRODUCER'>, '_DEC8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCJPMS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCKR': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB18030': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB2312': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GBK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GEOSTD8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GREEK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HEBREW': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HP8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KEYBCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8R': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8U': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN1': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACCE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACROMAN': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SWE7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_TIS620': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16LE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF32': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB3': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB4': <TokenType.INTRODUCER: 'INTRODUCER'>, '@@': <TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>}
COMMANDS = {<TokenType.REPLACE: 'REPLACE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.FETCH: 'FETCH'>, <TokenType.RENAME: 'RENAME'>, <TokenType.COMMAND: 'COMMAND'>}

##### Inherited Members

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

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

    267    class Parser(parser.Parser):
    268        FUNC_TOKENS = {
    269            *parser.Parser.FUNC_TOKENS,
    270            TokenType.DATABASE,
    271            TokenType.SCHEMA,
    272            TokenType.VALUES,
    273        }
    274
    275        CONJUNCTION = {
    276            **parser.Parser.CONJUNCTION,
    277            TokenType.DAMP: exp.And,
    278            TokenType.XOR: exp.Xor,
    279        }
    280
    281        DISJUNCTION = {
    282            **parser.Parser.DISJUNCTION,
    283            TokenType.DPIPE: exp.Or,
    284        }
    285
    286        TABLE_ALIAS_TOKENS = (
    287            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    288        )
    289
    290        RANGE_PARSERS = {
    291            **parser.Parser.RANGE_PARSERS,
    292            TokenType.MEMBER_OF: lambda self, this: self.expression(
    293                exp.JSONArrayContains,
    294                this=this,
    295                expression=self._parse_wrapped(self._parse_expression),
    296            ),
    297        }
    298
    299        FUNCTIONS = {
    300            **parser.Parser.FUNCTIONS,
    301            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
    302                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
    303            ),
    304            "CURDATE": exp.CurrentDate.from_arg_list,
    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            "FORMAT": exp.NumberToStr.from_arg_list,
    314            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    315            "ISNULL": isnull_to_is_null,
    316            "LENGTH": lambda args: exp.Length(this=seq_get(args, 0), binary=True),
    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            "SCHEMA": exp.CurrentSchema.from_arg_list,
    324            "DATABASE": exp.CurrentSchema.from_arg_list,
    325            "STR_TO_DATE": _str_to_date,
    326            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    327            "TO_DAYS": lambda args: exp.paren(
    328                exp.DateDiff(
    329                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    330                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    331                    unit=exp.var("DAY"),
    332                )
    333                + 1
    334            ),
    335            "WEEK": lambda args: exp.Week(
    336                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    337            ),
    338            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    339            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    340        }
    341
    342        FUNCTION_PARSERS = {
    343            **parser.Parser.FUNCTION_PARSERS,
    344            "CHAR": lambda self: self.expression(
    345                exp.Chr,
    346                expressions=self._parse_csv(self._parse_assignment),
    347                charset=self._match(TokenType.USING) and self._parse_var(),
    348            ),
    349            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    350            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    351            "VALUES": lambda self: self.expression(
    352                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    353            ),
    354            "JSON_VALUE": lambda self: self._parse_json_value(),
    355        }
    356
    357        STATEMENT_PARSERS = {
    358            **parser.Parser.STATEMENT_PARSERS,
    359            TokenType.SHOW: lambda self: self._parse_show(),
    360        }
    361
    362        SHOW_PARSERS = {
    363            "BINARY LOGS": _show_parser("BINARY LOGS"),
    364            "MASTER LOGS": _show_parser("BINARY LOGS"),
    365            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    366            "CHARACTER SET": _show_parser("CHARACTER SET"),
    367            "CHARSET": _show_parser("CHARACTER SET"),
    368            "COLLATION": _show_parser("COLLATION"),
    369            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    370            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    371            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    372            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    373            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    374            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    375            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    376            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    377            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    378            "DATABASES": _show_parser("DATABASES"),
    379            "SCHEMAS": _show_parser("DATABASES"),
    380            "ENGINE": _show_parser("ENGINE", target=True),
    381            "STORAGE ENGINES": _show_parser("ENGINES"),
    382            "ENGINES": _show_parser("ENGINES"),
    383            "ERRORS": _show_parser("ERRORS"),
    384            "EVENTS": _show_parser("EVENTS"),
    385            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    386            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    387            "GRANTS": _show_parser("GRANTS", target="FOR"),
    388            "INDEX": _show_parser("INDEX", target="FROM"),
    389            "MASTER STATUS": _show_parser("MASTER STATUS"),
    390            "OPEN TABLES": _show_parser("OPEN TABLES"),
    391            "PLUGINS": _show_parser("PLUGINS"),
    392            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    393            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    394            "PRIVILEGES": _show_parser("PRIVILEGES"),
    395            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    396            "PROCESSLIST": _show_parser("PROCESSLIST"),
    397            "PROFILE": _show_parser("PROFILE"),
    398            "PROFILES": _show_parser("PROFILES"),
    399            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    400            "REPLICAS": _show_parser("REPLICAS"),
    401            "SLAVE HOSTS": _show_parser("REPLICAS"),
    402            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    403            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    404            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    405            "SESSION STATUS": _show_parser("STATUS"),
    406            "STATUS": _show_parser("STATUS"),
    407            "TABLE STATUS": _show_parser("TABLE STATUS"),
    408            "FULL TABLES": _show_parser("TABLES", full=True),
    409            "TABLES": _show_parser("TABLES"),
    410            "TRIGGERS": _show_parser("TRIGGERS"),
    411            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    412            "SESSION VARIABLES": _show_parser("VARIABLES"),
    413            "VARIABLES": _show_parser("VARIABLES"),
    414            "WARNINGS": _show_parser("WARNINGS"),
    415        }
    416
    417        PROPERTY_PARSERS = {
    418            **parser.Parser.PROPERTY_PARSERS,
    419            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    420        }
    421
    422        SET_PARSERS = {
    423            **parser.Parser.SET_PARSERS,
    424            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    425            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    426            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    427            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    428            "NAMES": lambda self: self._parse_set_item_names(),
    429        }
    430
    431        CONSTRAINT_PARSERS = {
    432            **parser.Parser.CONSTRAINT_PARSERS,
    433            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    434            "INDEX": lambda self: self._parse_index_constraint(),
    435            "KEY": lambda self: self._parse_index_constraint(),
    436            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    437        }
    438
    439        ALTER_PARSERS = {
    440            **parser.Parser.ALTER_PARSERS,
    441            "MODIFY": lambda self: self._parse_alter_table_alter(),
    442        }
    443
    444        ALTER_ALTER_PARSERS = {
    445            **parser.Parser.ALTER_ALTER_PARSERS,
    446            "INDEX": lambda self: self._parse_alter_table_alter_index(),
    447        }
    448
    449        SCHEMA_UNNAMED_CONSTRAINTS = {
    450            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    451            "FULLTEXT",
    452            "INDEX",
    453            "KEY",
    454            "SPATIAL",
    455        }
    456
    457        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    458            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    459            "BLOCK": ("IO",),
    460            "CONTEXT": ("SWITCHES",),
    461            "PAGE": ("FAULTS",),
    462        }
    463
    464        TYPE_TOKENS = {
    465            *parser.Parser.TYPE_TOKENS,
    466            TokenType.SET,
    467        }
    468
    469        ENUM_TYPE_TOKENS = {
    470            *parser.Parser.ENUM_TYPE_TOKENS,
    471            TokenType.SET,
    472        }
    473
    474        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
    475        OPERATION_MODIFIERS = {
    476            "HIGH_PRIORITY",
    477            "STRAIGHT_JOIN",
    478            "SQL_SMALL_RESULT",
    479            "SQL_BIG_RESULT",
    480            "SQL_BUFFER_RESULT",
    481            "SQL_NO_CACHE",
    482            "SQL_CALC_FOUND_ROWS",
    483        }
    484
    485        LOG_DEFAULTS_TO_LN = True
    486        STRING_ALIASES = True
    487        VALUES_FOLLOWED_BY_PAREN = False
    488        SUPPORTS_PARTITION_SELECTION = True
    489
    490        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    491            this = self._parse_id_var()
    492            if not self._match(TokenType.L_PAREN):
    493                return this
    494
    495            expression = self._parse_number()
    496            self._match_r_paren()
    497            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    498
    499        def _parse_index_constraint(
    500            self, kind: t.Optional[str] = None
    501        ) -> exp.IndexColumnConstraint:
    502            if kind:
    503                self._match_texts(("INDEX", "KEY"))
    504
    505            this = self._parse_id_var(any_token=False)
    506            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    507            expressions = self._parse_wrapped_csv(self._parse_ordered)
    508
    509            options = []
    510            while True:
    511                if self._match_text_seq("KEY_BLOCK_SIZE"):
    512                    self._match(TokenType.EQ)
    513                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    514                elif self._match(TokenType.USING):
    515                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    516                elif self._match_text_seq("WITH", "PARSER"):
    517                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    518                elif self._match(TokenType.COMMENT):
    519                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    520                elif self._match_text_seq("VISIBLE"):
    521                    opt = exp.IndexConstraintOption(visible=True)
    522                elif self._match_text_seq("INVISIBLE"):
    523                    opt = exp.IndexConstraintOption(visible=False)
    524                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    525                    self._match(TokenType.EQ)
    526                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    527                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    528                    self._match(TokenType.EQ)
    529                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    530                else:
    531                    opt = None
    532
    533                if not opt:
    534                    break
    535
    536                options.append(opt)
    537
    538            return self.expression(
    539                exp.IndexColumnConstraint,
    540                this=this,
    541                expressions=expressions,
    542                kind=kind,
    543                index_type=index_type,
    544                options=options,
    545            )
    546
    547        def _parse_show_mysql(
    548            self,
    549            this: str,
    550            target: bool | str = False,
    551            full: t.Optional[bool] = None,
    552            global_: t.Optional[bool] = None,
    553        ) -> exp.Show:
    554            if target:
    555                if isinstance(target, str):
    556                    self._match_text_seq(target)
    557                target_id = self._parse_id_var()
    558            else:
    559                target_id = None
    560
    561            log = self._parse_string() if self._match_text_seq("IN") else None
    562
    563            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    564                position = self._parse_number() if self._match_text_seq("FROM") else None
    565                db = None
    566            else:
    567                position = None
    568                db = None
    569
    570                if self._match(TokenType.FROM):
    571                    db = self._parse_id_var()
    572                elif self._match(TokenType.DOT):
    573                    db = target_id
    574                    target_id = self._parse_id_var()
    575
    576            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    577
    578            like = self._parse_string() if self._match_text_seq("LIKE") else None
    579            where = self._parse_where()
    580
    581            if this == "PROFILE":
    582                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    583                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    584                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    585                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    586            else:
    587                types, query = None, None
    588                offset, limit = self._parse_oldstyle_limit()
    589
    590            mutex = True if self._match_text_seq("MUTEX") else None
    591            mutex = False if self._match_text_seq("STATUS") else mutex
    592
    593            return self.expression(
    594                exp.Show,
    595                this=this,
    596                target=target_id,
    597                full=full,
    598                log=log,
    599                position=position,
    600                db=db,
    601                channel=channel,
    602                like=like,
    603                where=where,
    604                types=types,
    605                query=query,
    606                offset=offset,
    607                limit=limit,
    608                mutex=mutex,
    609                **{"global": global_},  # type: ignore
    610            )
    611
    612        def _parse_oldstyle_limit(
    613            self,
    614        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    615            limit = None
    616            offset = None
    617            if self._match_text_seq("LIMIT"):
    618                parts = self._parse_csv(self._parse_number)
    619                if len(parts) == 1:
    620                    limit = parts[0]
    621                elif len(parts) == 2:
    622                    limit = parts[1]
    623                    offset = parts[0]
    624
    625            return offset, limit
    626
    627        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    628            this = self._parse_string() or self._parse_unquoted_field()
    629            return self.expression(exp.SetItem, this=this, kind=kind)
    630
    631        def _parse_set_item_names(self) -> exp.Expression:
    632            charset = self._parse_string() or self._parse_unquoted_field()
    633            if self._match_text_seq("COLLATE"):
    634                collate = self._parse_string() or self._parse_unquoted_field()
    635            else:
    636                collate = None
    637
    638            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    639
    640        def _parse_type(
    641            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    642        ) -> t.Optional[exp.Expression]:
    643            # mysql binary is special and can work anywhere, even in order by operations
    644            # it operates like a no paren func
    645            if self._match(TokenType.BINARY, advance=False):
    646                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    647
    648                if isinstance(data_type, exp.DataType):
    649                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    650
    651            return super()._parse_type(
    652                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    653            )
    654
    655        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    656            def concat_exprs(
    657                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    658            ) -> exp.Expression:
    659                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    660                    concat_exprs = [
    661                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    662                    ]
    663                    node.set("expressions", concat_exprs)
    664                    return node
    665                if len(exprs) == 1:
    666                    return exprs[0]
    667                return self.expression(exp.Concat, expressions=args, safe=True)
    668
    669            args = self._parse_csv(self._parse_lambda)
    670
    671            if args:
    672                order = args[-1] if isinstance(args[-1], exp.Order) else None
    673
    674                if order:
    675                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    676                    # remove 'expr' from exp.Order and add it back to args
    677                    args[-1] = order.this
    678                    order.set("this", concat_exprs(order.this, args))
    679
    680                this = order or concat_exprs(args[0], args)
    681            else:
    682                this = None
    683
    684            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    685
    686            return self.expression(exp.GroupConcat, this=this, separator=separator)
    687
    688        def _parse_json_value(self) -> exp.JSONValue:
    689            this = self._parse_bitwise()
    690            self._match(TokenType.COMMA)
    691            path = self._parse_bitwise()
    692
    693            returning = self._match(TokenType.RETURNING) and self._parse_type()
    694
    695            return self.expression(
    696                exp.JSONValue,
    697                this=this,
    698                path=self.dialect.to_json_path(path),
    699                returning=returning,
    700                on_condition=self._parse_on_condition(),
    701            )
    702
    703        def _parse_alter_table_alter_index(self) -> exp.AlterIndex:
    704            index = self._parse_field(any_token=True)
    705
    706            if self._match_text_seq("VISIBLE"):
    707                visible = True
    708            elif self._match_text_seq("INVISIBLE"):
    709                visible = False
    710            else:
    711                visible = None
    712
    713            return self.expression(exp.AlterIndex, this=index, visible=visible)

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.MEDIUMINT: 'MEDIUMINT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UINT256: 'UINT256'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.UUID: 'UUID'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.VALUES: 'VALUES'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.NESTED: 'NESTED'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.FIRST: 'FIRST'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.RANGE: 'RANGE'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.INET: 'INET'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.INDEX: 'INDEX'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.ROW: 'ROW'>, <TokenType.DATE: 'DATE'>, <TokenType.NAME: 'NAME'>, <TokenType.LIKE: 'LIKE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.IPV6: 'IPV6'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.IPV4: 'IPV4'>, <TokenType.GLOB: 'GLOB'>, <TokenType.TIME: 'TIME'>, <TokenType.JSONB: 'JSONB'>, <TokenType.ALL: 'ALL'>, <TokenType.ANY: 'ANY'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT: 'UINT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.POINT: 'POINT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.UINT128: 'UINT128'>, <TokenType.INSERT: 'INSERT'>, <TokenType.VOID: 'VOID'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.INT128: 'INT128'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.INT: 'INT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.GET: 'GET'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.JSON: 'JSON'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.VAR: 'VAR'>, <TokenType.XML: 'XML'>, <TokenType.YEAR: 'YEAR'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.UNION: 'UNION'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.RING: 'RING'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.INT256: 'INT256'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NULL: 'NULL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.DATE32: 'DATE32'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SOME: 'SOME'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.XOR: 'XOR'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BLOB: 'BLOB'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.MAP: 'MAP'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.LEFT: 'LEFT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TEXT: 'TEXT'>}
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.MEDIUMINT: 'MEDIUMINT'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.BIT: 'BIT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.UINT256: 'UINT256'>, <TokenType.LOAD: 'LOAD'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.UUID: 'UUID'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.CUBE: 'CUBE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ASC: 'ASC'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.TRUE: 'TRUE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.MODEL: 'MODEL'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.NESTED: 'NESTED'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.NAMESPACE: 'NAMESPACE'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.KILL: 'KILL'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.PUT: 'PUT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.VIEW: 'VIEW'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.FINAL: 'FINAL'>, <TokenType.FIRST: 'FIRST'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DIV: 'DIV'>, <TokenType.RANGE: 'RANGE'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.INET: 'INET'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.INDEX: 'INDEX'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.ROW: 'ROW'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.DATE: 'DATE'>, <TokenType.NAME: 'NAME'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.IPV6: 'IPV6'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SET: 'SET'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.IPV4: 'IPV4'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.TIME: 'TIME'>, <TokenType.JSONB: 'JSONB'>, <TokenType.DESC: 'DESC'>, <TokenType.ANY: 'ANY'>, <TokenType.FILE_FORMAT: 'FILE_FORMAT'>, <TokenType.TOP: 'TOP'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT: 'UINT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.POINT: 'POINT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.ROWS: 'ROWS'>, <TokenType.UINT128: 'UINT128'>, <TokenType.VOID: 'VOID'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.IS: 'IS'>, <TokenType.CASE: 'CASE'>, <TokenType.SEMI: 'SEMI'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.INT128: 'INT128'>, <TokenType.CHAR: 'CHAR'>, <TokenType.SHOW: 'SHOW'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.INT: 'INT'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.ALL: 'ALL'>, <TokenType.GET: 'GET'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.JSON: 'JSON'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.VAR: 'VAR'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.XML: 'XML'>, <TokenType.YEAR: 'YEAR'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.RING: 'RING'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.TAG: 'TAG'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.ANTI: 'ANTI'>, <TokenType.INT256: 'INT256'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.END: 'END'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.COPY: 'COPY'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.NULL: 'NULL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.LIMIT: 'LIMIT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.DATE32: 'DATE32'>, <TokenType.CURRENT_SCHEMA: 'CURRENT_SCHEMA'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.SOME: 'SOME'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.STAGE: 'STAGE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.RENAME: 'RENAME'>, <TokenType.EXPORT: 'EXPORT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.CACHE: 'CACHE'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.DETACH: 'DETACH'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.BINARY: 'BINARY'>, <TokenType.DELETE: 'DELETE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BLOB: 'BLOB'>, <TokenType.SINK: 'SINK'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.MAP: 'MAP'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DESCRIBE: 'DESCRIBE'>}
RANGE_PARSERS = {<TokenType.AT_GT: 'AT_GT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.LT_AT: 'LT_AT'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.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'>>, 'AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.And'>>, 'ANONYMOUS_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnonymousAggFunc'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPLY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Apply'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <function Parser.<lambda>>, 'ARRAY_AGG': <function Parser.<lambda>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_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': <function Parser.<lambda>>, 'CHAR': <function Parser.<lambda>>, 'COALESCE': <function build_coalesce>, 'IFNULL': <function build_coalesce>, 'NVL': <function build_coalesce>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COLUMNS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Columns'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Contains'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CONVERT_TIMEZONE': <function build_convert_timezone>, 'CONVERT_TO_CHARSET': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConvertToCharset'>>, 'CORR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Corr'>>, 'COUNT': <function Parser.<lambda>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COUNTIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COVAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarPop'>>, 'COVAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarSamp'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_SCHEMA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentSchema'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <function MySQL.Parser.<lambda>>, 'DATE_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_BIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateBin'>>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Datetime'>>, 'DATETIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeAdd'>>, 'DATETIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeDiff'>>, 'DATETIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeSub'>>, 'DATETIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DatetimeTrunc'>>, 'DAY': <function MySQL.Parser.<lambda>>, 'DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfMonth'>>, 'DAYOFMONTH': <function MySQL.Parser.<lambda>>, 'DAY_OF_WEEK': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeek'>>, 'DAYOFWEEK': <function MySQL.Parser.<lambda>>, 'DAYOFWEEK_ISO': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeekIso'>>, 'ISODOW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfWeekIso'>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <function MySQL.Parser.<lambda>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exists'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, 'EXPLODING_GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodingGenerateSeries'>>, 'EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Extract'>>, 'FEATURES_AT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FeaturesAtTime'>>, 'FIRST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.First'>>, 'FIRST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FirstValue'>>, 'FLATTEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Flatten'>>, 'FLOOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Floor'>>, 'FROM_BASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase'>>, 'FROM_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromBase64'>>, 'FROM_ISO8601_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.FromISO8601Timestamp'>>, 'GAP_FILL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GapFill'>>, 'GENERATE_DATE_ARRAY': <function Parser.<lambda>>, 'GENERATE_SERIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateSeries'>>, 'GENERATE_TIMESTAMP_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GenerateTimestampArray'>>, 'GREATEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Greatest'>>, 'GROUP_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.GroupConcat'>>, 'HEX': <function build_hex>, 'HLL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Hll'>>, 'IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'IIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.If'>>, 'INITCAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Initcap'>>, 'INLINE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Inline'>>, 'INT64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Int64'>>, 'IS_ASCII': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsAscii'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBContains'>>, 'JSONB_EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExists'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'J_S_O_N_B_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBObjectAgg'>>, 'J_S_O_N_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONCast'>>, 'J_S_O_N_EXISTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExists'>>, 'JSON_EXTRACT': <function build_extract_json_with_path.<locals>._builder>, 'JSON_EXTRACT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONExtractArray'>>, 'JSON_EXTRACT_SCALAR': <function build_extract_json_with_path.<locals>._builder>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'J_S_O_N_VALUE_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONValueArray'>>, 'LAG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lag'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastValue'>>, 'LEAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lead'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <function MySQL.Parser.<lambda>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CHAR_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'CHARACTER_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.List'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function build_logarithm>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOLOR_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'LOWER': <function build_lower>, 'LCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lower'>>, 'LOWER_HEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LowerHex'>>, 'MD5': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5'>>, 'MD5_DIGEST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MD5Digest'>>, 'MAKE_INTERVAL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MakeInterval'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MEDIAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Median'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <function MySQL.Parser.<lambda>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NORMALIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Normalize'>>, 'NTH_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NthValue'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OBJECT_INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ObjectInsert'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Or'>>, 'OVERLAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Overlay'>>, 'PAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pad'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'QUARTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quarter'>>, 'RAND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDOM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Randn'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, 'REGEXP_EXTRACT_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtractAll'>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SIGN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SIGNUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'SPLIT_PART': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SplitPart'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, 'STDDEV_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevPop'>>, 'STDDEV_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StddevSamp'>>, 'STR_POSITION': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'STR_TO_DATE': <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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.String'>>, 'STRING_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'SPLIT_BY_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUBSTR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME': <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 'sqlglot.expressions.TimeDiff'>>, 'TIME_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIMEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMPDIFF': <function build_date_delta.<locals>._builder>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <function MySQL.Parser.<lambda>>, 'TO_DOUBLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToDouble'>>, 'TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToMap'>>, 'TO_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToNumber'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Try'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'TS_OR_DS_TO_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDatetime'>>, 'TS_OR_DS_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTime'>>, 'TS_OR_DS_TO_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTimestamp'>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNICODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unicode'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, 'UNIX_SECONDS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixSeconds'>>, 'UNIX_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToStr'>>, 'UNIX_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNIX_TO_TIME_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTimeStr'>>, 'UNNEST': <function Parser.<lambda>>, 'UPPER': <function build_upper>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GEN_RANDOM_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'GENERATE_UUID': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'UUID_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Uuid'>>, 'VAR_MAP': <function build_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <function MySQL.Parser.<lambda>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <function MySQL.Parser.<lambda>>, 'XMLELEMENT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLElement'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <function MySQL.Parser.<lambda>>, 'ARRAYAGG': <function Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'JSON_EXTRACT_PATH_TEXT': <function build_extract_json_with_path.<locals>._builder>, 'LIKE': <function build_like>, 'LOG2': <function Parser.<lambda>>, 'LOG10': <function Parser.<lambda>>, 'LPAD': <function Parser.<lambda>>, 'LEFTPAD': <function Parser.<lambda>>, 'LTRIM': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'RIGHTPAD': <function Parser.<lambda>>, 'RPAD': <function Parser.<lambda>>, 'RTRIM': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'STRPOS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'CHARINDEX': <function Parser.<lambda>>, 'INSTR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StrPosition'>>, 'LOCATE': <function Parser.<lambda>>, 'TO_HEX': <function build_hex>, 'CONVERT_TZ': <function MySQL.Parser.<lambda>>, 'CURDATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'DATE_FORMAT': <function build_formatted_time.<locals>._builder>, 'FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'ISNULL': <function isnull_to_is_null>, 'MAKETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MONTHNAME': <function MySQL.Parser.<lambda>>, 'SCHEMA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentSchema'>>, 'DATABASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentSchema'>>}
FUNCTION_PARSERS = {'ARG_MAX': <function Parser.<dictcomp>.<lambda>>, 'ARGMAX': <function Parser.<dictcomp>.<lambda>>, 'MAX_BY': <function Parser.<dictcomp>.<lambda>>, 'ARG_MIN': <function Parser.<dictcomp>.<lambda>>, 'ARGMIN': <function Parser.<dictcomp>.<lambda>>, 'MIN_BY': <function Parser.<dictcomp>.<lambda>>, 'CAST': <function Parser.<lambda>>, 'CEIL': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'FLOOR': <function Parser.<lambda>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'NORMALIZE': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'OVERLAY': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, 'TRIM': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'XMLELEMENT': <function Parser.<lambda>>, 'XMLTABLE': <function Parser.<lambda>>, 'CHAR': <function MySQL.Parser.<lambda>>, 'GROUP_CONCAT': <function MySQL.Parser.<lambda>>, 'VALUES': <function MySQL.Parser.<lambda>>, 'JSON_VALUE': <function MySQL.Parser.<lambda>>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.ANALYZE: 'ANALYZE'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COPY: 'COPY'>: <function Parser.<lambda>>, <TokenType.CREATE: 'CREATE'>: <function Parser.<lambda>>, <TokenType.DELETE: 'DELETE'>: <function Parser.<lambda>>, <TokenType.DESC: 'DESC'>: <function Parser.<lambda>>, <TokenType.DESCRIBE: 'DESCRIBE'>: <function Parser.<lambda>>, <TokenType.DROP: 'DROP'>: <function Parser.<lambda>>, <TokenType.GRANT: 'GRANT'>: <function Parser.<lambda>>, <TokenType.INSERT: 'INSERT'>: <function Parser.<lambda>>, <TokenType.KILL: 'KILL'>: <function Parser.<lambda>>, <TokenType.LOAD: 'LOAD'>: <function Parser.<lambda>>, <TokenType.MERGE: 'MERGE'>: <function Parser.<lambda>>, <TokenType.PIVOT: 'PIVOT'>: <function Parser.<lambda>>, <TokenType.PRAGMA: 'PRAGMA'>: <function Parser.<lambda>>, <TokenType.REFRESH: 'REFRESH'>: <function Parser.<lambda>>, <TokenType.ROLLBACK: 'ROLLBACK'>: <function Parser.<lambda>>, <TokenType.SET: 'SET'>: <function Parser.<lambda>>, <TokenType.TRUNCATE: 'TRUNCATE'>: <function Parser.<lambda>>, <TokenType.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UNPIVOT: 'UNPIVOT'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <function Parser.<lambda>>, <TokenType.SEMICOLON: 'SEMICOLON'>: <function Parser.<lambda>>, <TokenType.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>>, 'DISTRIBUTED': <function Parser.<lambda>>, 'DUPLICATE': <function Parser.<lambda>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'EMPTY': <function Parser.<lambda>>, 'ENGINE': <function Parser.<lambda>>, 'ENVIRONMENT': <function Parser.<lambda>>, 'EXECUTE': <function Parser.<lambda>>, 'EXTERNAL': <function Parser.<lambda>>, 'FALLBACK': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'FREESPACE': <function Parser.<lambda>>, 'GLOBAL': <function Parser.<lambda>>, 'HEAP': <function Parser.<lambda>>, 'ICEBERG': <function Parser.<lambda>>, 'IMMUTABLE': <function Parser.<lambda>>, 'INHERITS': <function Parser.<lambda>>, 'INPUT': <function Parser.<lambda>>, 'JOURNAL': <function Parser.<lambda>>, 'LANGUAGE': <function Parser.<lambda>>, 'LAYOUT': <function Parser.<lambda>>, 'LIFETIME': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'LOCATION': <function Parser.<lambda>>, 'LOCK': <function 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>>, 'STREAMING': <function Parser.<lambda>>, 'ROW': <function Parser.<lambda>>, 'ROW_FORMAT': <function Parser.<lambda>>, 'SAMPLE': <function Parser.<lambda>>, 'SECURE': <function Parser.<lambda>>, 'SECURITY': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'SETTINGS': <function Parser.<lambda>>, 'SHARING': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'SOURCE': <function Parser.<lambda>>, 'STABLE': <function Parser.<lambda>>, 'STORED': <function Parser.<lambda>>, 'SYSTEM_VERSIONING': <function Parser.<lambda>>, 'TBLPROPERTIES': <function Parser.<lambda>>, 'TEMP': <function Parser.<lambda>>, 'TEMPORARY': <function Parser.<lambda>>, 'TO': <function Parser.<lambda>>, 'TRANSIENT': <function Parser.<lambda>>, 'TRANSFORM': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'USING': <function Parser.<lambda>>, 'UNLOGGED': <function Parser.<lambda>>, 'VOLATILE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>}
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>>, 'WATERMARK': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>, 'BUCKET': <function Parser.<lambda>>, 'TRUNCATE': <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>>, 'AS': <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>>, 'SWAP': <function Parser.<lambda>>, 'MODIFY': <function MySQL.Parser.<lambda>>}
ALTER_ALTER_PARSERS = {'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'COMPOUND': <function Parser.<lambda>>, 'INDEX': <function MySQL.Parser.<lambda>>}
SCHEMA_UNNAMED_CONSTRAINTS = {'PRIMARY KEY', 'CHECK', 'INDEX', 'TRUNCATE', 'PERIOD', 'FULLTEXT', 'UNIQUE', 'BUCKET', 'LIKE', 'KEY', 'FOREIGN KEY', 'EXCLUDE', 'SPATIAL', 'WATERMARK'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.BIT: 'BIT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.INT128: 'INT128'>, <TokenType.CHAR: 'CHAR'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.INT: 'INT'>, <TokenType.UUID: 'UUID'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.JSON: 'JSON'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.XML: 'XML'>, <TokenType.YEAR: 'YEAR'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.UNION: 'UNION'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.RING: 'RING'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.NESTED: 'NESTED'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.SMALLDATETIME: 'SMALLDATETIME'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.ENUM: 'ENUM'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.LIST: 'LIST'>, <TokenType.INT256: 'INT256'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.RANGE: 'RANGE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.INET: 'INET'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.DATE: 'DATE'>, <TokenType.NAME: 'NAME'>, <TokenType.NULL: 'NULL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.IPV6: 'IPV6'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.NOTHING: 'NOTHING'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SET: 'SET'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.DATETIME2: 'DATETIME2'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.IPV4: 'IPV4'>, <TokenType.DATE32: 'DATE32'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.TIME: 'TIME'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.MONEY: 'MONEY'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.UDOUBLE: 'UDOUBLE'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT: 'UINT'>, <TokenType.BINARY: 'BINARY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.BLOB: 'BLOB'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.MAP: 'MAP'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.POINT: 'POINT'>, <TokenType.UINT128: 'UINT128'>, <TokenType.VOID: 'VOID'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TEXT: 'TEXT'>}
ENUM_TYPE_TOKENS = {<TokenType.ENUM8: 'ENUM8'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.ENUM: 'ENUM'>, <TokenType.DYNAMIC: 'DYNAMIC'>, <TokenType.SET: 'SET'>}
OPERATION_MODIFIERS = {'SQL_BIG_RESULT', 'SQL_BUFFER_RESULT', 'SQL_SMALL_RESULT', 'STRAIGHT_JOIN', 'SQL_NO_CACHE', 'HIGH_PRIORITY', 'SQL_CALC_FOUND_ROWS'}
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
  ALTERABLES
  ID_VAR_TOKENS
  ALIAS_TOKENS
  COLON_PLACEHOLDER_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
  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
  PROCEDURE_OPTIONS
  EXECUTE_AS_OPTIONS
  KEY_CONSTRAINT_OPTIONS
  WINDOW_EXCLUDE_OPTIONS
  INSERT_ALTERNATIVES
  CLONE_KEYWORDS
  HISTORICAL_DATA_PREFIX
  HISTORICAL_DATA_KIND
  OPCLASS_FOLLOW_KEYWORDS
  OPTYPE_FOLLOW_TOKENS
  TABLE_INDEX_HINT_TOKENS
  VIEW_ATTRIBUTES
  WINDOW_ALIAS_TOKENS
  WINDOW_BEFORE_PAREN_TOKENS
  WINDOW_SIDES
  JSON_KEY_VALUE_SEPARATOR_TOKENS
  FETCH_TOKENS
  ADD_CONSTRAINT_TOKENS
  DISTINCT_TOKENS
  NULL_TOKENS
  UNNEST_OFFSET_ALIAS_TOKENS
  SELECT_START_TOKENS
  COPY_INTO_VARLEN_OPTIONS
  IS_JSON_PREDICATE_KIND
  ODBC_DATETIME_LITERALS
  ON_CONDITION_TOKENS
  PRIVILEGE_FOLLOW_TOKENS
  DESCRIBE_STYLES
  ANALYZE_STYLES
  ANALYZE_EXPRESSION_PARSERS
  PARTITION_KEYWORDS
  AMBIGUOUS_ALIAS_TOKENS
  RECURSIVE_CTE_SEARCH_KIND
  MODIFIABLES
  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
  WRAPPED_TRANSFORM_COLUMN_CONSTRAINT
  OPTIONAL_ALIAS_TOKEN_CTE
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  parse_set_operation
  errors
  sql

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

     715    class Generator(generator.Generator):
     716        INTERVAL_ALLOWS_PLURAL_FORM = False
     717        LOCKING_READS_SUPPORTED = True
     718        NULL_ORDERING_SUPPORTED = None
     719        JOIN_HINTS = False
     720        TABLE_HINTS = True
     721        DUPLICATE_KEY_UPDATE_WITH_SET = False
     722        QUERY_HINT_SEP = " "
     723        VALUES_AS_TABLE = False
     724        NVL2_SUPPORTED = False
     725        LAST_DAY_SUPPORTS_DATE_PART = False
     726        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     727        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     728        JSON_KEY_VALUE_PAIR_SEP = ","
     729        SUPPORTS_TO_NUMBER = False
     730        PARSE_JSON_NAME: t.Optional[str] = None
     731        PAD_FILL_PATTERN_IS_REQUIRED = True
     732        WRAP_DERIVED_VALUES = False
     733        VARCHAR_REQUIRES_SIZE = True
     734        SUPPORTS_MEDIAN = False
     735
     736        TRANSFORMS = {
     737            **generator.Generator.TRANSFORMS,
     738            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     739            exp.CurrentDate: no_paren_current_date_sql,
     740            exp.DateDiff: _remove_ts_or_ds_to_date(
     741                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     742            ),
     743            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     744            exp.DateStrToDate: datestrtodate_sql,
     745            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     746            exp.DateTrunc: _date_trunc_sql,
     747            exp.Day: _remove_ts_or_ds_to_date(),
     748            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     749            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     750            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     751            exp.GroupConcat: lambda self,
     752            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     753            exp.ILike: no_ilike_sql,
     754            exp.JSONExtractScalar: arrow_json_extract_sql,
     755            exp.Length: length_or_char_length_sql,
     756            exp.LogicalOr: rename_func("MAX"),
     757            exp.LogicalAnd: rename_func("MIN"),
     758            exp.Max: max_or_greatest,
     759            exp.Min: min_or_least,
     760            exp.Month: _remove_ts_or_ds_to_date(),
     761            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     762            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     763            exp.NumberToStr: rename_func("FORMAT"),
     764            exp.Pivot: no_pivot_sql,
     765            exp.Select: transforms.preprocess(
     766                [
     767                    transforms.eliminate_distinct_on,
     768                    transforms.eliminate_semi_and_anti_joins,
     769                    transforms.eliminate_qualify,
     770                    transforms.eliminate_full_outer_join,
     771                    transforms.unnest_generate_date_array_using_recursive_cte,
     772                ]
     773            ),
     774            exp.StrPosition: lambda self, e: strposition_sql(
     775                self, e, func_name="LOCATE", supports_position=True
     776            ),
     777            exp.StrToDate: _str_to_date_sql,
     778            exp.StrToTime: _str_to_date_sql,
     779            exp.Stuff: rename_func("INSERT"),
     780            exp.TableSample: no_tablesample_sql,
     781            exp.TimeFromParts: rename_func("MAKETIME"),
     782            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     783            exp.TimestampDiff: lambda self, e: self.func(
     784                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     785            ),
     786            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     787            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     788            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     789                self,
     790                e,
     791                include_precision=not e.args.get("zone"),
     792            ),
     793            exp.TimeToStr: _remove_ts_or_ds_to_date(
     794                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     795            ),
     796            exp.Trim: trim_sql,
     797            exp.TryCast: no_trycast_sql,
     798            exp.TsOrDsAdd: date_add_sql("ADD"),
     799            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     800            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     801            exp.Unicode: lambda self, e: f"ORD(CONVERT({self.sql(e.this)} USING utf32))",
     802            exp.UnixToTime: _unix_to_time_sql,
     803            exp.Week: _remove_ts_or_ds_to_date(),
     804            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     805            exp.Year: _remove_ts_or_ds_to_date(),
     806        }
     807
     808        UNSIGNED_TYPE_MAPPING = {
     809            exp.DataType.Type.UBIGINT: "BIGINT",
     810            exp.DataType.Type.UINT: "INT",
     811            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     812            exp.DataType.Type.USMALLINT: "SMALLINT",
     813            exp.DataType.Type.UTINYINT: "TINYINT",
     814            exp.DataType.Type.UDECIMAL: "DECIMAL",
     815            exp.DataType.Type.UDOUBLE: "DOUBLE",
     816        }
     817
     818        TIMESTAMP_TYPE_MAPPING = {
     819            exp.DataType.Type.DATETIME2: "DATETIME",
     820            exp.DataType.Type.SMALLDATETIME: "DATETIME",
     821            exp.DataType.Type.TIMESTAMP: "DATETIME",
     822            exp.DataType.Type.TIMESTAMPNTZ: "DATETIME",
     823            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     824            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     825        }
     826
     827        TYPE_MAPPING = {
     828            **generator.Generator.TYPE_MAPPING,
     829            **UNSIGNED_TYPE_MAPPING,
     830            **TIMESTAMP_TYPE_MAPPING,
     831        }
     832
     833        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     834        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     835        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     836        TYPE_MAPPING.pop(exp.DataType.Type.BLOB)
     837        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     838        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     839        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     840
     841        PROPERTIES_LOCATION = {
     842            **generator.Generator.PROPERTIES_LOCATION,
     843            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     844            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     845        }
     846
     847        LIMIT_FETCH = "LIMIT"
     848
     849        LIMIT_ONLY_LITERALS = True
     850
     851        CHAR_CAST_MAPPING = dict.fromkeys(
     852            (
     853                exp.DataType.Type.LONGTEXT,
     854                exp.DataType.Type.LONGBLOB,
     855                exp.DataType.Type.MEDIUMBLOB,
     856                exp.DataType.Type.MEDIUMTEXT,
     857                exp.DataType.Type.TEXT,
     858                exp.DataType.Type.TINYBLOB,
     859                exp.DataType.Type.TINYTEXT,
     860                exp.DataType.Type.VARCHAR,
     861            ),
     862            "CHAR",
     863        )
     864        SIGNED_CAST_MAPPING = dict.fromkeys(
     865            (
     866                exp.DataType.Type.BIGINT,
     867                exp.DataType.Type.BOOLEAN,
     868                exp.DataType.Type.INT,
     869                exp.DataType.Type.SMALLINT,
     870                exp.DataType.Type.TINYINT,
     871                exp.DataType.Type.MEDIUMINT,
     872            ),
     873            "SIGNED",
     874        )
     875
     876        # MySQL doesn't support many datatypes in cast.
     877        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     878        CAST_MAPPING = {
     879            **CHAR_CAST_MAPPING,
     880            **SIGNED_CAST_MAPPING,
     881            exp.DataType.Type.UBIGINT: "UNSIGNED",
     882        }
     883
     884        TIMESTAMP_FUNC_TYPES = {
     885            exp.DataType.Type.TIMESTAMPTZ,
     886            exp.DataType.Type.TIMESTAMPLTZ,
     887        }
     888
     889        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     890        RESERVED_KEYWORDS = {
     891            "accessible",
     892            "add",
     893            "all",
     894            "alter",
     895            "analyze",
     896            "and",
     897            "as",
     898            "asc",
     899            "asensitive",
     900            "before",
     901            "between",
     902            "bigint",
     903            "binary",
     904            "blob",
     905            "both",
     906            "by",
     907            "call",
     908            "cascade",
     909            "case",
     910            "change",
     911            "char",
     912            "character",
     913            "check",
     914            "collate",
     915            "column",
     916            "condition",
     917            "constraint",
     918            "continue",
     919            "convert",
     920            "create",
     921            "cross",
     922            "cube",
     923            "cume_dist",
     924            "current_date",
     925            "current_time",
     926            "current_timestamp",
     927            "current_user",
     928            "cursor",
     929            "database",
     930            "databases",
     931            "day_hour",
     932            "day_microsecond",
     933            "day_minute",
     934            "day_second",
     935            "dec",
     936            "decimal",
     937            "declare",
     938            "default",
     939            "delayed",
     940            "delete",
     941            "dense_rank",
     942            "desc",
     943            "describe",
     944            "deterministic",
     945            "distinct",
     946            "distinctrow",
     947            "div",
     948            "double",
     949            "drop",
     950            "dual",
     951            "each",
     952            "else",
     953            "elseif",
     954            "empty",
     955            "enclosed",
     956            "escaped",
     957            "except",
     958            "exists",
     959            "exit",
     960            "explain",
     961            "false",
     962            "fetch",
     963            "first_value",
     964            "float",
     965            "float4",
     966            "float8",
     967            "for",
     968            "force",
     969            "foreign",
     970            "from",
     971            "fulltext",
     972            "function",
     973            "generated",
     974            "get",
     975            "grant",
     976            "group",
     977            "grouping",
     978            "groups",
     979            "having",
     980            "high_priority",
     981            "hour_microsecond",
     982            "hour_minute",
     983            "hour_second",
     984            "if",
     985            "ignore",
     986            "in",
     987            "index",
     988            "infile",
     989            "inner",
     990            "inout",
     991            "insensitive",
     992            "insert",
     993            "int",
     994            "int1",
     995            "int2",
     996            "int3",
     997            "int4",
     998            "int8",
     999            "integer",
    1000            "intersect",
    1001            "interval",
    1002            "into",
    1003            "io_after_gtids",
    1004            "io_before_gtids",
    1005            "is",
    1006            "iterate",
    1007            "join",
    1008            "json_table",
    1009            "key",
    1010            "keys",
    1011            "kill",
    1012            "lag",
    1013            "last_value",
    1014            "lateral",
    1015            "lead",
    1016            "leading",
    1017            "leave",
    1018            "left",
    1019            "like",
    1020            "limit",
    1021            "linear",
    1022            "lines",
    1023            "load",
    1024            "localtime",
    1025            "localtimestamp",
    1026            "lock",
    1027            "long",
    1028            "longblob",
    1029            "longtext",
    1030            "loop",
    1031            "low_priority",
    1032            "master_bind",
    1033            "master_ssl_verify_server_cert",
    1034            "match",
    1035            "maxvalue",
    1036            "mediumblob",
    1037            "mediumint",
    1038            "mediumtext",
    1039            "middleint",
    1040            "minute_microsecond",
    1041            "minute_second",
    1042            "mod",
    1043            "modifies",
    1044            "natural",
    1045            "not",
    1046            "no_write_to_binlog",
    1047            "nth_value",
    1048            "ntile",
    1049            "null",
    1050            "numeric",
    1051            "of",
    1052            "on",
    1053            "optimize",
    1054            "optimizer_costs",
    1055            "option",
    1056            "optionally",
    1057            "or",
    1058            "order",
    1059            "out",
    1060            "outer",
    1061            "outfile",
    1062            "over",
    1063            "partition",
    1064            "percent_rank",
    1065            "precision",
    1066            "primary",
    1067            "procedure",
    1068            "purge",
    1069            "range",
    1070            "rank",
    1071            "read",
    1072            "reads",
    1073            "read_write",
    1074            "real",
    1075            "recursive",
    1076            "references",
    1077            "regexp",
    1078            "release",
    1079            "rename",
    1080            "repeat",
    1081            "replace",
    1082            "require",
    1083            "resignal",
    1084            "restrict",
    1085            "return",
    1086            "revoke",
    1087            "right",
    1088            "rlike",
    1089            "row",
    1090            "rows",
    1091            "row_number",
    1092            "schema",
    1093            "schemas",
    1094            "second_microsecond",
    1095            "select",
    1096            "sensitive",
    1097            "separator",
    1098            "set",
    1099            "show",
    1100            "signal",
    1101            "smallint",
    1102            "spatial",
    1103            "specific",
    1104            "sql",
    1105            "sqlexception",
    1106            "sqlstate",
    1107            "sqlwarning",
    1108            "sql_big_result",
    1109            "sql_calc_found_rows",
    1110            "sql_small_result",
    1111            "ssl",
    1112            "starting",
    1113            "stored",
    1114            "straight_join",
    1115            "system",
    1116            "table",
    1117            "terminated",
    1118            "then",
    1119            "tinyblob",
    1120            "tinyint",
    1121            "tinytext",
    1122            "to",
    1123            "trailing",
    1124            "trigger",
    1125            "true",
    1126            "undo",
    1127            "union",
    1128            "unique",
    1129            "unlock",
    1130            "unsigned",
    1131            "update",
    1132            "usage",
    1133            "use",
    1134            "using",
    1135            "utc_date",
    1136            "utc_time",
    1137            "utc_timestamp",
    1138            "values",
    1139            "varbinary",
    1140            "varchar",
    1141            "varcharacter",
    1142            "varying",
    1143            "virtual",
    1144            "when",
    1145            "where",
    1146            "while",
    1147            "window",
    1148            "with",
    1149            "write",
    1150            "xor",
    1151            "year_month",
    1152            "zerofill",
    1153        }
    1154
    1155        def array_sql(self, expression: exp.Array) -> str:
    1156            self.unsupported("Arrays are not supported by MySQL")
    1157            return self.function_fallback_sql(expression)
    1158
    1159        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1160            self.unsupported("Array operations are not supported by MySQL")
    1161            return self.function_fallback_sql(expression)
    1162
    1163        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1164            return self.func("CONCAT", *expression.flatten())
    1165
    1166        def extract_sql(self, expression: exp.Extract) -> str:
    1167            unit = expression.name
    1168            if unit and unit.lower() == "epoch":
    1169                return self.func("UNIX_TIMESTAMP", expression.expression)
    1170
    1171            return super().extract_sql(expression)
    1172
    1173        def datatype_sql(self, expression: exp.DataType) -> str:
    1174            if (
    1175                self.VARCHAR_REQUIRES_SIZE
    1176                and expression.is_type(exp.DataType.Type.VARCHAR)
    1177                and not expression.expressions
    1178            ):
    1179                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1180                return "TEXT"
    1181
    1182            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1183            result = super().datatype_sql(expression)
    1184            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1185                result = f"{result} UNSIGNED"
    1186
    1187            return result
    1188
    1189        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1190            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1191
    1192        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1193            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1194                return self.func("TIMESTAMP", expression.this)
    1195
    1196            to = self.CAST_MAPPING.get(expression.to.this)
    1197
    1198            if to:
    1199                expression.to.set("this", to)
    1200            return super().cast_sql(expression)
    1201
    1202        def show_sql(self, expression: exp.Show) -> str:
    1203            this = f" {expression.name}"
    1204            full = " FULL" if expression.args.get("full") else ""
    1205            global_ = " GLOBAL" if expression.args.get("global") else ""
    1206
    1207            target = self.sql(expression, "target")
    1208            target = f" {target}" if target else ""
    1209            if expression.name in ("COLUMNS", "INDEX"):
    1210                target = f" FROM{target}"
    1211            elif expression.name == "GRANTS":
    1212                target = f" FOR{target}"
    1213
    1214            db = self._prefixed_sql("FROM", expression, "db")
    1215
    1216            like = self._prefixed_sql("LIKE", expression, "like")
    1217            where = self.sql(expression, "where")
    1218
    1219            types = self.expressions(expression, key="types")
    1220            types = f" {types}" if types else types
    1221            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1222
    1223            if expression.name == "PROFILE":
    1224                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1225                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1226            else:
    1227                offset = ""
    1228                limit = self._oldstyle_limit_sql(expression)
    1229
    1230            log = self._prefixed_sql("IN", expression, "log")
    1231            position = self._prefixed_sql("FROM", expression, "position")
    1232
    1233            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1234
    1235            if expression.name == "ENGINE":
    1236                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1237            else:
    1238                mutex_or_status = ""
    1239
    1240            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1241
    1242        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1243            dtype = self.sql(expression, "dtype")
    1244            if not dtype:
    1245                return super().altercolumn_sql(expression)
    1246
    1247            this = self.sql(expression, "this")
    1248            return f"MODIFY COLUMN {this} {dtype}"
    1249
    1250        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1251            sql = self.sql(expression, arg)
    1252            return f" {prefix} {sql}" if sql else ""
    1253
    1254        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1255            limit = self.sql(expression, "limit")
    1256            offset = self.sql(expression, "offset")
    1257            if limit:
    1258                limit_offset = f"{offset}, {limit}" if offset else limit
    1259                return f" LIMIT {limit_offset}"
    1260            return ""
    1261
    1262        def chr_sql(self, expression: exp.Chr) -> str:
    1263            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1264            charset = expression.args.get("charset")
    1265            using = f" USING {self.sql(charset)}" if charset else ""
    1266            return f"CHAR({this}{using})"
    1267
    1268        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1269            unit = expression.args.get("unit")
    1270
    1271            # Pick an old-enough date to avoid negative timestamp diffs
    1272            start_ts = "'0000-01-01 00:00:00'"
    1273
    1274            # Source: https://stackoverflow.com/a/32955740
    1275            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1276            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1277            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1278
    1279            return self.sql(dateadd)
    1280
    1281        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1282            from_tz = expression.args.get("source_tz")
    1283            to_tz = expression.args.get("target_tz")
    1284            dt = expression.args.get("timestamp")
    1285
    1286            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1287
    1288        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1289            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1290            return self.sql(expression.this)
    1291
    1292        def isascii_sql(self, expression: exp.IsAscii) -> str:
    1293            return f"REGEXP_LIKE({self.sql(expression.this)}, '^[[:ascii:]]*$')"
    1294
    1295        @unsupported_args("this")
    1296        def currentschema_sql(self, expression: exp.CurrentSchema) -> str:
    1297            return self.func("SCHEMA")

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: Optional[str] = None
PAD_FILL_PATTERN_IS_REQUIRED = True
WRAP_DERIVED_VALUES = False
VARCHAR_REQUIRES_SIZE = True
SUPPORTS_MEDIAN = False
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathFilter'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRecursive'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathScript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSelector'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSlice'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathUnion'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnalyzeColumns'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AnalyzeWith'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayContainsAll'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayOverlaps'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Ceil'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConnectByRoot'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConvertToCharset'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CredentialsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DynamicProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EmptyProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EnviromentProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Except'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Floor'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Get'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Intersect'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Int64'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LanguageProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LocationProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.LogProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.MaterializedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NonClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.NotForReplicationColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnCommitProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OnUpdateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Operator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PartitionedByBucket'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PartitionByTruncate'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PivotAny'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Put'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SharingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Stream'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StreamingTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SwapTable'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Tags'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Union'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UsingTemplateProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UsingData'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Uuid'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithProcedureOptions'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ForceProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.JSONExtractScalar'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.Length'>: <function length_or_char_length_sql>, <class 'sqlglot.expressions.LogicalOr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.LogicalAnd'>: <function rename_func.<locals>.<lambda>>, <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.NumberToStr'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrPosition'>: <function MySQL.Generator.<lambda>>, <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.Unicode'>: <function MySQL.Generator.<lambda>>, <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', <Type.UDOUBLE: 'UDOUBLE'>: 'DOUBLE'}
TIMESTAMP_TYPE_MAPPING = {<Type.DATETIME2: 'DATETIME2'>: 'DATETIME', <Type.SMALLDATETIME: 'SMALLDATETIME'>: 'DATETIME', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
TYPE_MAPPING = {<Type.DATETIME2: 'DATETIME2'>: 'DATETIME', <Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.SMALLDATETIME: 'SMALLDATETIME'>: 'DATETIME', <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.UDOUBLE: 'UDOUBLE'>: 'DOUBLE', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>: '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.DistributedByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DuplicateKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DataDeletionProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DynamicProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EmptyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EncodeProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EnviromentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.IncludeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_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.SecurityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SharingProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SequenceProperties'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StorageHandlerProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StreamingTableProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Tags'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.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.UsingTemplateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithProcedureOptions'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ForceProperty'>: <Location.POST_CREATE: 'POST_CREATE'>}
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.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>}
RESERVED_KEYWORDS = {'delete', 'int4', 'collate', 'day_second', 'write', 'and', 'last_value', 'range', 'linear', 'column', 'leading', 'schemas', 'sqlstate', 'order', 'io_after_gtids', 'trigger', 'interval', 'update', 'or', 'read', 'union', 'div', 'sql_big_result', 'localtimestamp', 'exists', 'over', 'fetch', 'all', 'cursor', 'int8', 'for', 'set', 'purge', 'keys', 'from', 'usage', 'groups', 'rename', 'optionally', 'sql', 'sql_small_result', 'rlike', 'function', 'enclosed', 'of', 'cascade', 'tinyint', 'no_write_to_binlog', 'grant', 'modifies', 'low_priority', 'continue', 'ignore', 'using', 'hour_microsecond', 'generated', 'float', 'where', 'lateral', 'index', 'insert', 'minute_second', 'precision', 'decimal', 'utc_timestamp', 'as', 'dual', 'partition', 'option', 'distinctrow', 'maxvalue', 'ssl', 'mediumblob', 'each', 'longtext', 'smallint', 'desc', 'infile', 'outer', 'hour_second', 'with', 'loop', 'release', 'lead', 'sqlexception', 'float8', 'drop', 'kill', 'mediumtext', 'describe', 'case', 'integer', 'master_ssl_verify_server_cert', 'on', 'day_hour', 'left', 'varying', 'recursive', 'iterate', 'stored', 'procedure', 'current_timestamp', 'when', 'revoke', 'convert', 'use', 'cube', 'foreign', 'not', 'varchar', 'insensitive', 'asc', 'unique', 'cross', 'except', 'row_number', 'while', 'high_priority', 'spatial', 'unlock', 'load', 'create', 'optimizer_costs', 'values', 'limit', 'out', 'regexp', 'straight_join', 'io_before_gtids', 'trailing', 'inout', 'undo', 'int2', 'join', 'minute_microsecond', 'system', 'zerofill', 'int', 'add', 'row', 'default', 'like', 'window', 'reads', 'schema', 'condition', 'sqlwarning', 'exit', 'longblob', 'second_microsecond', 'to', 'grouping', 'rows', 'replace', 'day_minute', 'else', 'int3', 'inner', 'int1', 'rank', 'localtime', 'mod', 'having', 'first_value', 'double', 'middleint', 'references', 'databases', 'dec', 'sensitive', 'tinytext', 'lock', 'numeric', 'check', 'xor', 'both', 'fulltext', 'mediumint', 'analyze', 'float4', 'repeat', 'force', 'year_month', 'deterministic', 'database', 'is', 'real', 'leave', 'natural', 'current_time', 'outfile', 'match', 'right', 'by', 'null', 'hour_minute', 'optimize', 'require', 'dense_rank', 'lag', 'accessible', 'call', 'into', 'json_table', 'escaped', 'key', 'false', 'asensitive', 'varcharacter', 'delayed', 'day_microsecond', 'read_write', 'show', 'alter', 'character', 'get', 'explain', 'long', 'utc_time', 'return', 'signal', 'starting', 'lines', 'varbinary', 'then', 'virtual', 'change', 'utc_date', 'percent_rank', 'select', 'if', 'restrict', 'cume_dist', 'true', 'specific', 'in', 'binary', 'blob', 'declare', 'elseif', 'group', 'before', 'master_bind', 'primary', 'sql_calc_found_rows', 'distinct', 'nth_value', 'ntile', 'separator', 'current_user', 'tinyblob', 'intersect', 'bigint', 'unsigned', 'constraint', 'between', 'resignal', 'terminated', 'empty', 'char', 'current_date', 'table'}
def array_sql(self, expression: sqlglot.expressions.Array) -> str: View Source

    1155        def array_sql(self, expression: exp.Array) -> str:
    1156            self.unsupported("Arrays are not supported by MySQL")
    1157            return self.function_fallback_sql(expression)

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

    1159        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1160            self.unsupported("Array operations are not supported by MySQL")
    1161            return self.function_fallback_sql(expression)

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

    1163        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1164            return self.func("CONCAT", *expression.flatten())

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

    1166        def extract_sql(self, expression: exp.Extract) -> str:
    1167            unit = expression.name
    1168            if unit and unit.lower() == "epoch":
    1169                return self.func("UNIX_TIMESTAMP", expression.expression)
    1170
    1171            return super().extract_sql(expression)

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

    1173        def datatype_sql(self, expression: exp.DataType) -> str:
    1174            if (
    1175                self.VARCHAR_REQUIRES_SIZE
    1176                and expression.is_type(exp.DataType.Type.VARCHAR)
    1177                and not expression.expressions
    1178            ):
    1179                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1180                return "TEXT"
    1181
    1182            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1183            result = super().datatype_sql(expression)
    1184            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1185                result = f"{result} UNSIGNED"
    1186
    1187            return result

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

    1189        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1190            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

    1192        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1193            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1194                return self.func("TIMESTAMP", expression.this)
    1195
    1196            to = self.CAST_MAPPING.get(expression.to.this)
    1197
    1198            if to:
    1199                expression.to.set("this", to)
    1200            return super().cast_sql(expression)

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

    1202        def show_sql(self, expression: exp.Show) -> str:
    1203            this = f" {expression.name}"
    1204            full = " FULL" if expression.args.get("full") else ""
    1205            global_ = " GLOBAL" if expression.args.get("global") else ""
    1206
    1207            target = self.sql(expression, "target")
    1208            target = f" {target}" if target else ""
    1209            if expression.name in ("COLUMNS", "INDEX"):
    1210                target = f" FROM{target}"
    1211            elif expression.name == "GRANTS":
    1212                target = f" FOR{target}"
    1213
    1214            db = self._prefixed_sql("FROM", expression, "db")
    1215
    1216            like = self._prefixed_sql("LIKE", expression, "like")
    1217            where = self.sql(expression, "where")
    1218
    1219            types = self.expressions(expression, key="types")
    1220            types = f" {types}" if types else types
    1221            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1222
    1223            if expression.name == "PROFILE":
    1224                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1225                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1226            else:
    1227                offset = ""
    1228                limit = self._oldstyle_limit_sql(expression)
    1229
    1230            log = self._prefixed_sql("IN", expression, "log")
    1231            position = self._prefixed_sql("FROM", expression, "position")
    1232
    1233            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1234
    1235            if expression.name == "ENGINE":
    1236                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1237            else:
    1238                mutex_or_status = ""
    1239
    1240            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

    1242        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1243            dtype = self.sql(expression, "dtype")
    1244            if not dtype:
    1245                return super().altercolumn_sql(expression)
    1246
    1247            this = self.sql(expression, "this")
    1248            return f"MODIFY COLUMN {this} {dtype}"

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

    1262        def chr_sql(self, expression: exp.Chr) -> str:
    1263            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1264            charset = expression.args.get("charset")
    1265            using = f" USING {self.sql(charset)}" if charset else ""
    1266            return f"CHAR({this}{using})"

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

    1268        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1269            unit = expression.args.get("unit")
    1270
    1271            # Pick an old-enough date to avoid negative timestamp diffs
    1272            start_ts = "'0000-01-01 00:00:00'"
    1273
    1274            # Source: https://stackoverflow.com/a/32955740
    1275            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1276            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1277            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1278
    1279            return self.sql(dateadd)

def converttimezone_sql(self, expression: sqlglot.expressions.ConvertTimezone) -> str: View Source

    1281        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1282            from_tz = expression.args.get("source_tz")
    1283            to_tz = expression.args.get("target_tz")
    1284            dt = expression.args.get("timestamp")
    1285
    1286            return self.func("CONVERT_TZ", dt, from_tz, to_tz)

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

    1288        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1289            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1290            return self.sql(expression.this)

def isascii_sql(self, expression: sqlglot.expressions.IsAscii) -> str: View Source

    1292        def isascii_sql(self, expression: exp.IsAscii) -> str:
    1293            return f"REGEXP_LIKE({self.sql(expression.this)}, '^[[:ascii:]]*$')"

@unsupported_args('this')
def currentschema_sql(self, expression: sqlglot.expressions.CurrentSchema) -> str: View Source

    1295        @unsupported_args("this")
    1296        def currentschema_sql(self, expression: exp.CurrentSchema) -> str:
    1297            return self.func("SCHEMA")

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
  EXCEPT_INTERSECT_SUPPORT_ALL_CLAUSE
  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
  SUPPORTS_WINDOW_EXCLUDE
  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
  SUPPORTS_EXPLODING_PROJECTIONS
  ARRAY_CONCAT_IS_VAR_LEN
  SUPPORTS_CONVERT_TIMEZONE
  SUPPORTS_UNIX_SECONDS
  ARRAY_SIZE_NAME
  ALTER_SET_TYPE
  ARRAY_SIZE_DIM_REQUIRED
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  NAMED_PLACEHOLDER_TOKEN
  EXPRESSION_PRECEDES_PROPERTIES_CREATABLES
  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
  set_operation
  set_operations
  fetch_sql
  limitoptions_sql
  filter_sql
  hint_sql
  indexparameters_sql
  index_sql
  identifier_sql
  hex_sql
  lowerhex_sql
  inputoutputformat_sql
  national_sql
  partition_sql
  properties_sql
  root_properties
  properties
  with_properties
  locate_properties
  property_name
  property_sql
  likeproperty_sql
  fallbackproperty_sql
  journalproperty_sql
  freespaceproperty_sql
  checksumproperty_sql
  mergeblockratioproperty_sql
  datablocksizeproperty_sql
  blockcompressionproperty_sql
  isolatedloadingproperty_sql
  partitionboundspec_sql
  partitionedofproperty_sql
  lockingproperty_sql
  withdataproperty_sql
  withsystemversioningproperty_sql
  insert_sql
  introducer_sql
  kill_sql
  pseudotype_sql
  objectidentifier_sql
  onconflict_sql
  returning_sql
  rowformatdelimitedproperty_sql
  withtablehint_sql
  indextablehint_sql
  historicaldata_sql
  table_parts
  table_sql
  tablefromrows_sql
  tablesample_sql
  pivot_sql
  version_sql
  tuple_sql
  update_sql
  values_sql
  var_sql
  into_sql
  from_sql
  groupingsets_sql
  rollup_sql
  cube_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
  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
  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
  collate_sql
  command_sql
  comment_sql
  mergetreettlaction_sql
  mergetreettl_sql
  transaction_sql
  commit_sql
  rollback_sql
  alterindex_sql
  alterdiststyle_sql
  altersortkey_sql
  alterrename_sql
  renamecolumn_sql
  alterset_sql
  alter_sql
  add_column_sql
  droppartition_sql
  addconstraint_sql
  distinct_sql
  ignorenulls_sql
  respectnulls_sql
  havingmax_sql
  intdiv_sql
  div_sql
  safedivide_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
  jsoncast_sql
  try_sql
  log_sql
  use_sql
  binary
  ceil_floor
  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
  whens_sql
  merge_sql
  tochar_sql
  tonumber_sql
  dictproperty_sql
  dictrange_sql
  dictsubproperty_sql
  duplicatekeyproperty_sql
  uniquekeyproperty_sql
  distributedbyproperty_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
  toarray_sql
  tsordstotime_sql
  tsordstotimestamp_sql
  tsordstodatetime_sql
  tsordstodate_sql
  unixdate_sql
  lastday_sql
  dateadd_sql
  arrayany_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
  rand_sql
  changes_sql
  pad_sql
  summarize_sql
  explodinggenerateseries_sql
  arrayconcat_sql
  json_sql
  jsonvalue_sql
  conditionalinsert_sql
  multitableinserts_sql
  oncondition_sql
  jsonextractquote_sql
  jsonexists_sql
  arrayagg_sql
  apply_sql
  grant_sql
  grantprivilege_sql
  grantprincipal_sql
  columns_sql
  overlay_sql
  todouble_sql
  string_sql
  median_sql
  overflowtruncatebehavior_sql
  unixseconds_sql
  arraysize_sql
  attach_sql
  detach_sql
  attachoption_sql
  featuresattime_sql
  watermarkcolumnconstraint_sql
  encodeproperty_sql
  includeproperty_sql
  xmlelement_sql
  partitionbyrangeproperty_sql
  partitionbyrangepropertydynamic_sql
  unpivotcolumns_sql
  analyzesample_sql
  analyzestatistics_sql
  analyzehistogram_sql
  analyzedelete_sql
  analyzelistchainedrows_sql
  analyzevalidate_sql
  analyze_sql
  xmltable_sql
  xmlnamespace_sql
  export_sql
  declare_sql
  declareitem_sql
  recursivewithsearch_sql
  parameterizedagg_sql
  anonymousaggfunc_sql
  combinedaggfunc_sql
  combinedparameterizedagg_sql
  get_put_sql
  translatecharacters_sql