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# sqlglot.dialects.mysql

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       1from __future__ import annotations
       2
       3import typing as t
       4
       5from sqlglot import exp, generator, parser, tokens, transforms
       6from sqlglot.dialects.dialect import (
       7    Dialect,
       8    NormalizationStrategy,
       9    arrow_json_extract_sql,
      10    date_add_interval_sql,
      11    datestrtodate_sql,
      12    build_formatted_time,
      13    isnull_to_is_null,
      14    locate_to_strposition,
      15    max_or_greatest,
      16    min_or_least,
      17    no_ilike_sql,
      18    no_paren_current_date_sql,
      19    no_pivot_sql,
      20    no_tablesample_sql,
      21    no_trycast_sql,
      22    build_date_delta,
      23    build_date_delta_with_interval,
      24    rename_func,
      25    strposition_to_locate_sql,
      26    unit_to_var,
      27    trim_sql,
      28    timestrtotime_sql,
      29)
      30from sqlglot.helper import seq_get
      31from sqlglot.tokens import TokenType
      32
      33
      34def _show_parser(*args: t.Any, **kwargs: t.Any) -> t.Callable[[MySQL.Parser], exp.Show]:
      35    def _parse(self: MySQL.Parser) -> exp.Show:
      36        return self._parse_show_mysql(*args, **kwargs)
      37
      38    return _parse
      39
      40
      41def _date_trunc_sql(self: MySQL.Generator, expression: exp.DateTrunc) -> str:
      42    expr = self.sql(expression, "this")
      43    unit = expression.text("unit").upper()
      44
      45    if unit == "WEEK":
      46        concat = f"CONCAT(YEAR({expr}), ' ', WEEK({expr}, 1), ' 1')"
      47        date_format = "%Y %u %w"
      48    elif unit == "MONTH":
      49        concat = f"CONCAT(YEAR({expr}), ' ', MONTH({expr}), ' 1')"
      50        date_format = "%Y %c %e"
      51    elif unit == "QUARTER":
      52        concat = f"CONCAT(YEAR({expr}), ' ', QUARTER({expr}) * 3 - 2, ' 1')"
      53        date_format = "%Y %c %e"
      54    elif unit == "YEAR":
      55        concat = f"CONCAT(YEAR({expr}), ' 1 1')"
      56        date_format = "%Y %c %e"
      57    else:
      58        if unit != "DAY":
      59            self.unsupported(f"Unexpected interval unit: {unit}")
      60        return self.func("DATE", expr)
      61
      62    return self.func("STR_TO_DATE", concat, f"'{date_format}'")
      63
      64
      65# All specifiers for time parts (as opposed to date parts)
      66# https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format
      67TIME_SPECIFIERS = {"f", "H", "h", "I", "i", "k", "l", "p", "r", "S", "s", "T"}
      68
      69
      70def _has_time_specifier(date_format: str) -> bool:
      71    i = 0
      72    length = len(date_format)
      73
      74    while i < length:
      75        if date_format[i] == "%":
      76            i += 1
      77            if i < length and date_format[i] in TIME_SPECIFIERS:
      78                return True
      79        i += 1
      80    return False
      81
      82
      83def _str_to_date(args: t.List) -> exp.StrToDate | exp.StrToTime:
      84    mysql_date_format = seq_get(args, 1)
      85    date_format = MySQL.format_time(mysql_date_format)
      86    this = seq_get(args, 0)
      87
      88    if mysql_date_format and _has_time_specifier(mysql_date_format.name):
      89        return exp.StrToTime(this=this, format=date_format)
      90
      91    return exp.StrToDate(this=this, format=date_format)
      92
      93
      94def _str_to_date_sql(
      95    self: MySQL.Generator, expression: exp.StrToDate | exp.StrToTime | exp.TsOrDsToDate
      96) -> str:
      97    return self.func("STR_TO_DATE", expression.this, self.format_time(expression))
      98
      99
     100def _unix_to_time_sql(self: MySQL.Generator, expression: exp.UnixToTime) -> str:
     101    scale = expression.args.get("scale")
     102    timestamp = expression.this
     103
     104    if scale in (None, exp.UnixToTime.SECONDS):
     105        return self.func("FROM_UNIXTIME", timestamp, self.format_time(expression))
     106
     107    return self.func(
     108        "FROM_UNIXTIME",
     109        exp.Div(this=timestamp, expression=exp.func("POW", 10, scale)),
     110        self.format_time(expression),
     111    )
     112
     113
     114def date_add_sql(
     115    kind: str,
     116) -> t.Callable[[generator.Generator, exp.Expression], str]:
     117    def func(self: generator.Generator, expression: exp.Expression) -> str:
     118        return self.func(
     119            f"DATE_{kind}",
     120            expression.this,
     121            exp.Interval(this=expression.expression, unit=unit_to_var(expression)),
     122        )
     123
     124    return func
     125
     126
     127def _ts_or_ds_to_date_sql(self: MySQL.Generator, expression: exp.TsOrDsToDate) -> str:
     128    time_format = expression.args.get("format")
     129    return _str_to_date_sql(self, expression) if time_format else self.func("DATE", expression.this)
     130
     131
     132def _remove_ts_or_ds_to_date(
     133    to_sql: t.Optional[t.Callable[[MySQL.Generator, exp.Expression], str]] = None,
     134    args: t.Tuple[str, ...] = ("this",),
     135) -> t.Callable[[MySQL.Generator, exp.Func], str]:
     136    def func(self: MySQL.Generator, expression: exp.Func) -> str:
     137        for arg_key in args:
     138            arg = expression.args.get(arg_key)
     139            if isinstance(arg, exp.TsOrDsToDate) and not arg.args.get("format"):
     140                expression.set(arg_key, arg.this)
     141
     142        return to_sql(self, expression) if to_sql else self.function_fallback_sql(expression)
     143
     144    return func
     145
     146
     147class MySQL(Dialect):
     148    PROMOTE_TO_INFERRED_DATETIME_TYPE = True
     149
     150    # https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
     151    IDENTIFIERS_CAN_START_WITH_DIGIT = True
     152
     153    # We default to treating all identifiers as case-sensitive, since it matches MySQL's
     154    # behavior on Linux systems. For MacOS and Windows systems, one can override this
     155    # setting by specifying `dialect="mysql, normalization_strategy = lowercase"`.
     156    #
     157    # See also https://dev.mysql.com/doc/refman/8.2/en/identifier-case-sensitivity.html
     158    NORMALIZATION_STRATEGY = NormalizationStrategy.CASE_SENSITIVE
     159
     160    TIME_FORMAT = "'%Y-%m-%d %T'"
     161    DPIPE_IS_STRING_CONCAT = False
     162    SUPPORTS_USER_DEFINED_TYPES = False
     163    SUPPORTS_SEMI_ANTI_JOIN = False
     164    SAFE_DIVISION = True
     165
     166    # https://prestodb.io/docs/current/functions/datetime.html#mysql-date-functions
     167    TIME_MAPPING = {
     168        "%M": "%B",
     169        "%c": "%-m",
     170        "%e": "%-d",
     171        "%h": "%I",
     172        "%i": "%M",
     173        "%s": "%S",
     174        "%u": "%W",
     175        "%k": "%-H",
     176        "%l": "%-I",
     177        "%T": "%H:%M:%S",
     178        "%W": "%A",
     179    }
     180
     181    class Tokenizer(tokens.Tokenizer):
     182        QUOTES = ["'", '"']
     183        COMMENTS = ["--", "#", ("/*", "*/")]
     184        IDENTIFIERS = ["`"]
     185        STRING_ESCAPES = ["'", '"', "\\"]
     186        BIT_STRINGS = [("b'", "'"), ("B'", "'"), ("0b", "")]
     187        HEX_STRINGS = [("x'", "'"), ("X'", "'"), ("0x", "")]
     188
     189        KEYWORDS = {
     190            **tokens.Tokenizer.KEYWORDS,
     191            "CHARSET": TokenType.CHARACTER_SET,
     192            # The DESCRIBE and EXPLAIN statements are synonyms.
     193            # https://dev.mysql.com/doc/refman/8.4/en/explain.html
     194            "EXPLAIN": TokenType.DESCRIBE,
     195            "FORCE": TokenType.FORCE,
     196            "IGNORE": TokenType.IGNORE,
     197            "KEY": TokenType.KEY,
     198            "LOCK TABLES": TokenType.COMMAND,
     199            "LONGBLOB": TokenType.LONGBLOB,
     200            "LONGTEXT": TokenType.LONGTEXT,
     201            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
     202            "TINYBLOB": TokenType.TINYBLOB,
     203            "TINYTEXT": TokenType.TINYTEXT,
     204            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
     205            "MEDIUMINT": TokenType.MEDIUMINT,
     206            "MEMBER OF": TokenType.MEMBER_OF,
     207            "SEPARATOR": TokenType.SEPARATOR,
     208            "START": TokenType.BEGIN,
     209            "SIGNED": TokenType.BIGINT,
     210            "SIGNED INTEGER": TokenType.BIGINT,
     211            "UNLOCK TABLES": TokenType.COMMAND,
     212            "UNSIGNED": TokenType.UBIGINT,
     213            "UNSIGNED INTEGER": TokenType.UBIGINT,
     214            "YEAR": TokenType.YEAR,
     215            "_ARMSCII8": TokenType.INTRODUCER,
     216            "_ASCII": TokenType.INTRODUCER,
     217            "_BIG5": TokenType.INTRODUCER,
     218            "_BINARY": TokenType.INTRODUCER,
     219            "_CP1250": TokenType.INTRODUCER,
     220            "_CP1251": TokenType.INTRODUCER,
     221            "_CP1256": TokenType.INTRODUCER,
     222            "_CP1257": TokenType.INTRODUCER,
     223            "_CP850": TokenType.INTRODUCER,
     224            "_CP852": TokenType.INTRODUCER,
     225            "_CP866": TokenType.INTRODUCER,
     226            "_CP932": TokenType.INTRODUCER,
     227            "_DEC8": TokenType.INTRODUCER,
     228            "_EUCJPMS": TokenType.INTRODUCER,
     229            "_EUCKR": TokenType.INTRODUCER,
     230            "_GB18030": TokenType.INTRODUCER,
     231            "_GB2312": TokenType.INTRODUCER,
     232            "_GBK": TokenType.INTRODUCER,
     233            "_GEOSTD8": TokenType.INTRODUCER,
     234            "_GREEK": TokenType.INTRODUCER,
     235            "_HEBREW": TokenType.INTRODUCER,
     236            "_HP8": TokenType.INTRODUCER,
     237            "_KEYBCS2": TokenType.INTRODUCER,
     238            "_KOI8R": TokenType.INTRODUCER,
     239            "_KOI8U": TokenType.INTRODUCER,
     240            "_LATIN1": TokenType.INTRODUCER,
     241            "_LATIN2": TokenType.INTRODUCER,
     242            "_LATIN5": TokenType.INTRODUCER,
     243            "_LATIN7": TokenType.INTRODUCER,
     244            "_MACCE": TokenType.INTRODUCER,
     245            "_MACROMAN": TokenType.INTRODUCER,
     246            "_SJIS": TokenType.INTRODUCER,
     247            "_SWE7": TokenType.INTRODUCER,
     248            "_TIS620": TokenType.INTRODUCER,
     249            "_UCS2": TokenType.INTRODUCER,
     250            "_UJIS": TokenType.INTRODUCER,
     251            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
     252            "_UTF8": TokenType.INTRODUCER,
     253            "_UTF16": TokenType.INTRODUCER,
     254            "_UTF16LE": TokenType.INTRODUCER,
     255            "_UTF32": TokenType.INTRODUCER,
     256            "_UTF8MB3": TokenType.INTRODUCER,
     257            "_UTF8MB4": TokenType.INTRODUCER,
     258            "@@": TokenType.SESSION_PARAMETER,
     259        }
     260
     261        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
     262
     263    class Parser(parser.Parser):
     264        FUNC_TOKENS = {
     265            *parser.Parser.FUNC_TOKENS,
     266            TokenType.DATABASE,
     267            TokenType.SCHEMA,
     268            TokenType.VALUES,
     269        }
     270
     271        CONJUNCTION = {
     272            **parser.Parser.CONJUNCTION,
     273            TokenType.DAMP: exp.And,
     274            TokenType.XOR: exp.Xor,
     275        }
     276
     277        DISJUNCTION = {
     278            **parser.Parser.DISJUNCTION,
     279            TokenType.DPIPE: exp.Or,
     280        }
     281
     282        TABLE_ALIAS_TOKENS = (
     283            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     284        )
     285
     286        RANGE_PARSERS = {
     287            **parser.Parser.RANGE_PARSERS,
     288            TokenType.MEMBER_OF: lambda self, this: self.expression(
     289                exp.JSONArrayContains,
     290                this=this,
     291                expression=self._parse_wrapped(self._parse_expression),
     292            ),
     293        }
     294
     295        FUNCTIONS = {
     296            **parser.Parser.FUNCTIONS,
     297            "CHAR_LENGTH": exp.Length.from_arg_list,
     298            "CHARACTER_LENGTH": exp.Length.from_arg_list,
     299            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
     300                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
     301            ),
     302            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
     303            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     304            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
     305            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     306            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     307            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     308            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     309            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     310            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     311            "ISNULL": isnull_to_is_null,
     312            "LOCATE": locate_to_strposition,
     313            "MAKETIME": exp.TimeFromParts.from_arg_list,
     314            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     315            "MONTHNAME": lambda args: exp.TimeToStr(
     316                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     317                format=exp.Literal.string("%B"),
     318            ),
     319            "STR_TO_DATE": _str_to_date,
     320            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
     321            "TO_DAYS": lambda args: exp.paren(
     322                exp.DateDiff(
     323                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     324                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
     325                    unit=exp.var("DAY"),
     326                )
     327                + 1
     328            ),
     329            "WEEK": lambda args: exp.Week(
     330                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
     331            ),
     332            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     333            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     334        }
     335
     336        FUNCTION_PARSERS = {
     337            **parser.Parser.FUNCTION_PARSERS,
     338            "CHAR": lambda self: self.expression(
     339                exp.Chr,
     340                expressions=self._parse_csv(self._parse_assignment),
     341                charset=self._match(TokenType.USING) and self._parse_var(),
     342            ),
     343            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     344            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     345            "VALUES": lambda self: self.expression(
     346                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     347            ),
     348            "JSON_VALUE": lambda self: self._parse_json_value(),
     349        }
     350
     351        STATEMENT_PARSERS = {
     352            **parser.Parser.STATEMENT_PARSERS,
     353            TokenType.SHOW: lambda self: self._parse_show(),
     354        }
     355
     356        SHOW_PARSERS = {
     357            "BINARY LOGS": _show_parser("BINARY LOGS"),
     358            "MASTER LOGS": _show_parser("BINARY LOGS"),
     359            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     360            "CHARACTER SET": _show_parser("CHARACTER SET"),
     361            "CHARSET": _show_parser("CHARACTER SET"),
     362            "COLLATION": _show_parser("COLLATION"),
     363            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     364            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     365            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     366            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     367            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     368            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     369            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     370            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     371            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     372            "DATABASES": _show_parser("DATABASES"),
     373            "SCHEMAS": _show_parser("DATABASES"),
     374            "ENGINE": _show_parser("ENGINE", target=True),
     375            "STORAGE ENGINES": _show_parser("ENGINES"),
     376            "ENGINES": _show_parser("ENGINES"),
     377            "ERRORS": _show_parser("ERRORS"),
     378            "EVENTS": _show_parser("EVENTS"),
     379            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     380            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     381            "GRANTS": _show_parser("GRANTS", target="FOR"),
     382            "INDEX": _show_parser("INDEX", target="FROM"),
     383            "MASTER STATUS": _show_parser("MASTER STATUS"),
     384            "OPEN TABLES": _show_parser("OPEN TABLES"),
     385            "PLUGINS": _show_parser("PLUGINS"),
     386            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     387            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     388            "PRIVILEGES": _show_parser("PRIVILEGES"),
     389            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     390            "PROCESSLIST": _show_parser("PROCESSLIST"),
     391            "PROFILE": _show_parser("PROFILE"),
     392            "PROFILES": _show_parser("PROFILES"),
     393            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     394            "REPLICAS": _show_parser("REPLICAS"),
     395            "SLAVE HOSTS": _show_parser("REPLICAS"),
     396            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     397            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     398            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     399            "SESSION STATUS": _show_parser("STATUS"),
     400            "STATUS": _show_parser("STATUS"),
     401            "TABLE STATUS": _show_parser("TABLE STATUS"),
     402            "FULL TABLES": _show_parser("TABLES", full=True),
     403            "TABLES": _show_parser("TABLES"),
     404            "TRIGGERS": _show_parser("TRIGGERS"),
     405            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     406            "SESSION VARIABLES": _show_parser("VARIABLES"),
     407            "VARIABLES": _show_parser("VARIABLES"),
     408            "WARNINGS": _show_parser("WARNINGS"),
     409        }
     410
     411        PROPERTY_PARSERS = {
     412            **parser.Parser.PROPERTY_PARSERS,
     413            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     414        }
     415
     416        SET_PARSERS = {
     417            **parser.Parser.SET_PARSERS,
     418            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     419            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     420            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     421            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     422            "NAMES": lambda self: self._parse_set_item_names(),
     423        }
     424
     425        CONSTRAINT_PARSERS = {
     426            **parser.Parser.CONSTRAINT_PARSERS,
     427            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     428            "INDEX": lambda self: self._parse_index_constraint(),
     429            "KEY": lambda self: self._parse_index_constraint(),
     430            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     431        }
     432
     433        ALTER_PARSERS = {
     434            **parser.Parser.ALTER_PARSERS,
     435            "MODIFY": lambda self: self._parse_alter_table_alter(),
     436        }
     437
     438        SCHEMA_UNNAMED_CONSTRAINTS = {
     439            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     440            "FULLTEXT",
     441            "INDEX",
     442            "KEY",
     443            "SPATIAL",
     444        }
     445
     446        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     447            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     448            "BLOCK": ("IO",),
     449            "CONTEXT": ("SWITCHES",),
     450            "PAGE": ("FAULTS",),
     451        }
     452
     453        TYPE_TOKENS = {
     454            *parser.Parser.TYPE_TOKENS,
     455            TokenType.SET,
     456        }
     457
     458        ENUM_TYPE_TOKENS = {
     459            *parser.Parser.ENUM_TYPE_TOKENS,
     460            TokenType.SET,
     461        }
     462
     463        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
     464        OPERATION_MODIFIERS = {
     465            "HIGH_PRIORITY",
     466            "STRAIGHT_JOIN",
     467            "SQL_SMALL_RESULT",
     468            "SQL_BIG_RESULT",
     469            "SQL_BUFFER_RESULT",
     470            "SQL_NO_CACHE",
     471            "SQL_CALC_FOUND_ROWS",
     472        }
     473
     474        LOG_DEFAULTS_TO_LN = True
     475        STRING_ALIASES = True
     476        VALUES_FOLLOWED_BY_PAREN = False
     477        SUPPORTS_PARTITION_SELECTION = True
     478
     479        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     480            this = self._parse_id_var()
     481            if not self._match(TokenType.L_PAREN):
     482                return this
     483
     484            expression = self._parse_number()
     485            self._match_r_paren()
     486            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     487
     488        def _parse_index_constraint(
     489            self, kind: t.Optional[str] = None
     490        ) -> exp.IndexColumnConstraint:
     491            if kind:
     492                self._match_texts(("INDEX", "KEY"))
     493
     494            this = self._parse_id_var(any_token=False)
     495            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     496            expressions = self._parse_wrapped_csv(self._parse_ordered)
     497
     498            options = []
     499            while True:
     500                if self._match_text_seq("KEY_BLOCK_SIZE"):
     501                    self._match(TokenType.EQ)
     502                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     503                elif self._match(TokenType.USING):
     504                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     505                elif self._match_text_seq("WITH", "PARSER"):
     506                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     507                elif self._match(TokenType.COMMENT):
     508                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     509                elif self._match_text_seq("VISIBLE"):
     510                    opt = exp.IndexConstraintOption(visible=True)
     511                elif self._match_text_seq("INVISIBLE"):
     512                    opt = exp.IndexConstraintOption(visible=False)
     513                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     514                    self._match(TokenType.EQ)
     515                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     516                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     517                    self._match(TokenType.EQ)
     518                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     519                else:
     520                    opt = None
     521
     522                if not opt:
     523                    break
     524
     525                options.append(opt)
     526
     527            return self.expression(
     528                exp.IndexColumnConstraint,
     529                this=this,
     530                expressions=expressions,
     531                kind=kind,
     532                index_type=index_type,
     533                options=options,
     534            )
     535
     536        def _parse_show_mysql(
     537            self,
     538            this: str,
     539            target: bool | str = False,
     540            full: t.Optional[bool] = None,
     541            global_: t.Optional[bool] = None,
     542        ) -> exp.Show:
     543            if target:
     544                if isinstance(target, str):
     545                    self._match_text_seq(target)
     546                target_id = self._parse_id_var()
     547            else:
     548                target_id = None
     549
     550            log = self._parse_string() if self._match_text_seq("IN") else None
     551
     552            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     553                position = self._parse_number() if self._match_text_seq("FROM") else None
     554                db = None
     555            else:
     556                position = None
     557                db = None
     558
     559                if self._match(TokenType.FROM):
     560                    db = self._parse_id_var()
     561                elif self._match(TokenType.DOT):
     562                    db = target_id
     563                    target_id = self._parse_id_var()
     564
     565            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     566
     567            like = self._parse_string() if self._match_text_seq("LIKE") else None
     568            where = self._parse_where()
     569
     570            if this == "PROFILE":
     571                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     572                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     573                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     574                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     575            else:
     576                types, query = None, None
     577                offset, limit = self._parse_oldstyle_limit()
     578
     579            mutex = True if self._match_text_seq("MUTEX") else None
     580            mutex = False if self._match_text_seq("STATUS") else mutex
     581
     582            return self.expression(
     583                exp.Show,
     584                this=this,
     585                target=target_id,
     586                full=full,
     587                log=log,
     588                position=position,
     589                db=db,
     590                channel=channel,
     591                like=like,
     592                where=where,
     593                types=types,
     594                query=query,
     595                offset=offset,
     596                limit=limit,
     597                mutex=mutex,
     598                **{"global": global_},  # type: ignore
     599            )
     600
     601        def _parse_oldstyle_limit(
     602            self,
     603        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     604            limit = None
     605            offset = None
     606            if self._match_text_seq("LIMIT"):
     607                parts = self._parse_csv(self._parse_number)
     608                if len(parts) == 1:
     609                    limit = parts[0]
     610                elif len(parts) == 2:
     611                    limit = parts[1]
     612                    offset = parts[0]
     613
     614            return offset, limit
     615
     616        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     617            this = self._parse_string() or self._parse_unquoted_field()
     618            return self.expression(exp.SetItem, this=this, kind=kind)
     619
     620        def _parse_set_item_names(self) -> exp.Expression:
     621            charset = self._parse_string() or self._parse_unquoted_field()
     622            if self._match_text_seq("COLLATE"):
     623                collate = self._parse_string() or self._parse_unquoted_field()
     624            else:
     625                collate = None
     626
     627            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     628
     629        def _parse_type(
     630            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     631        ) -> t.Optional[exp.Expression]:
     632            # mysql binary is special and can work anywhere, even in order by operations
     633            # it operates like a no paren func
     634            if self._match(TokenType.BINARY, advance=False):
     635                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     636
     637                if isinstance(data_type, exp.DataType):
     638                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     639
     640            return super()._parse_type(
     641                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     642            )
     643
     644        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     645            def concat_exprs(
     646                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     647            ) -> exp.Expression:
     648                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     649                    concat_exprs = [
     650                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     651                    ]
     652                    node.set("expressions", concat_exprs)
     653                    return node
     654                if len(exprs) == 1:
     655                    return exprs[0]
     656                return self.expression(exp.Concat, expressions=args, safe=True)
     657
     658            args = self._parse_csv(self._parse_lambda)
     659
     660            if args:
     661                order = args[-1] if isinstance(args[-1], exp.Order) else None
     662
     663                if order:
     664                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     665                    # remove 'expr' from exp.Order and add it back to args
     666                    args[-1] = order.this
     667                    order.set("this", concat_exprs(order.this, args))
     668
     669                this = order or concat_exprs(args[0], args)
     670            else:
     671                this = None
     672
     673            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     674
     675            return self.expression(exp.GroupConcat, this=this, separator=separator)
     676
     677        def _parse_json_value(self) -> exp.JSONValue:
     678            this = self._parse_bitwise()
     679            self._match(TokenType.COMMA)
     680            path = self._parse_bitwise()
     681
     682            returning = self._match(TokenType.RETURNING) and self._parse_type()
     683
     684            return self.expression(
     685                exp.JSONValue,
     686                this=this,
     687                path=self.dialect.to_json_path(path),
     688                returning=returning,
     689                on_condition=self._parse_on_condition(),
     690            )
     691
     692    class Generator(generator.Generator):
     693        INTERVAL_ALLOWS_PLURAL_FORM = False
     694        LOCKING_READS_SUPPORTED = True
     695        NULL_ORDERING_SUPPORTED = None
     696        JOIN_HINTS = False
     697        TABLE_HINTS = True
     698        DUPLICATE_KEY_UPDATE_WITH_SET = False
     699        QUERY_HINT_SEP = " "
     700        VALUES_AS_TABLE = False
     701        NVL2_SUPPORTED = False
     702        LAST_DAY_SUPPORTS_DATE_PART = False
     703        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     704        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     705        JSON_KEY_VALUE_PAIR_SEP = ","
     706        SUPPORTS_TO_NUMBER = False
     707        PARSE_JSON_NAME: t.Optional[str] = None
     708        PAD_FILL_PATTERN_IS_REQUIRED = True
     709        WRAP_DERIVED_VALUES = False
     710        VARCHAR_REQUIRES_SIZE = True
     711        SUPPORTS_MEDIAN = False
     712
     713        TRANSFORMS = {
     714            **generator.Generator.TRANSFORMS,
     715            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     716            exp.CurrentDate: no_paren_current_date_sql,
     717            exp.DateDiff: _remove_ts_or_ds_to_date(
     718                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     719            ),
     720            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     721            exp.DateStrToDate: datestrtodate_sql,
     722            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     723            exp.DateTrunc: _date_trunc_sql,
     724            exp.Day: _remove_ts_or_ds_to_date(),
     725            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     726            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     727            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     728            exp.GroupConcat: lambda self,
     729            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     730            exp.ILike: no_ilike_sql,
     731            exp.JSONExtractScalar: arrow_json_extract_sql,
     732            exp.Length: rename_func("CHAR_LENGTH"),
     733            exp.Max: max_or_greatest,
     734            exp.Min: min_or_least,
     735            exp.Month: _remove_ts_or_ds_to_date(),
     736            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     737            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     738            exp.Pivot: no_pivot_sql,
     739            exp.Select: transforms.preprocess(
     740                [
     741                    transforms.eliminate_distinct_on,
     742                    transforms.eliminate_semi_and_anti_joins,
     743                    transforms.eliminate_qualify,
     744                    transforms.eliminate_full_outer_join,
     745                    transforms.unnest_generate_date_array_using_recursive_cte,
     746                ]
     747            ),
     748            exp.StrPosition: strposition_to_locate_sql,
     749            exp.StrToDate: _str_to_date_sql,
     750            exp.StrToTime: _str_to_date_sql,
     751            exp.Stuff: rename_func("INSERT"),
     752            exp.TableSample: no_tablesample_sql,
     753            exp.TimeFromParts: rename_func("MAKETIME"),
     754            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     755            exp.TimestampDiff: lambda self, e: self.func(
     756                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     757            ),
     758            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     759            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     760            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     761                self,
     762                e,
     763                include_precision=not e.args.get("zone"),
     764            ),
     765            exp.TimeToStr: _remove_ts_or_ds_to_date(
     766                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     767            ),
     768            exp.Trim: trim_sql,
     769            exp.TryCast: no_trycast_sql,
     770            exp.TsOrDsAdd: date_add_sql("ADD"),
     771            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     772            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     773            exp.UnixToTime: _unix_to_time_sql,
     774            exp.Week: _remove_ts_or_ds_to_date(),
     775            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     776            exp.Year: _remove_ts_or_ds_to_date(),
     777        }
     778
     779        UNSIGNED_TYPE_MAPPING = {
     780            exp.DataType.Type.UBIGINT: "BIGINT",
     781            exp.DataType.Type.UINT: "INT",
     782            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     783            exp.DataType.Type.USMALLINT: "SMALLINT",
     784            exp.DataType.Type.UTINYINT: "TINYINT",
     785            exp.DataType.Type.UDECIMAL: "DECIMAL",
     786        }
     787
     788        TIMESTAMP_TYPE_MAPPING = {
     789            exp.DataType.Type.TIMESTAMP: "DATETIME",
     790            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     791            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     792        }
     793
     794        TYPE_MAPPING = {
     795            **generator.Generator.TYPE_MAPPING,
     796            **UNSIGNED_TYPE_MAPPING,
     797            **TIMESTAMP_TYPE_MAPPING,
     798        }
     799
     800        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     801        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     802        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     803        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     804        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     805        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     806
     807        PROPERTIES_LOCATION = {
     808            **generator.Generator.PROPERTIES_LOCATION,
     809            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     810            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     811        }
     812
     813        LIMIT_FETCH = "LIMIT"
     814
     815        LIMIT_ONLY_LITERALS = True
     816
     817        CHAR_CAST_MAPPING = dict.fromkeys(
     818            (
     819                exp.DataType.Type.LONGTEXT,
     820                exp.DataType.Type.LONGBLOB,
     821                exp.DataType.Type.MEDIUMBLOB,
     822                exp.DataType.Type.MEDIUMTEXT,
     823                exp.DataType.Type.TEXT,
     824                exp.DataType.Type.TINYBLOB,
     825                exp.DataType.Type.TINYTEXT,
     826                exp.DataType.Type.VARCHAR,
     827            ),
     828            "CHAR",
     829        )
     830        SIGNED_CAST_MAPPING = dict.fromkeys(
     831            (
     832                exp.DataType.Type.BIGINT,
     833                exp.DataType.Type.BOOLEAN,
     834                exp.DataType.Type.INT,
     835                exp.DataType.Type.SMALLINT,
     836                exp.DataType.Type.TINYINT,
     837                exp.DataType.Type.MEDIUMINT,
     838            ),
     839            "SIGNED",
     840        )
     841
     842        # MySQL doesn't support many datatypes in cast.
     843        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     844        CAST_MAPPING = {
     845            **CHAR_CAST_MAPPING,
     846            **SIGNED_CAST_MAPPING,
     847            exp.DataType.Type.UBIGINT: "UNSIGNED",
     848        }
     849
     850        TIMESTAMP_FUNC_TYPES = {
     851            exp.DataType.Type.TIMESTAMPTZ,
     852            exp.DataType.Type.TIMESTAMPLTZ,
     853        }
     854
     855        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     856        RESERVED_KEYWORDS = {
     857            "accessible",
     858            "add",
     859            "all",
     860            "alter",
     861            "analyze",
     862            "and",
     863            "as",
     864            "asc",
     865            "asensitive",
     866            "before",
     867            "between",
     868            "bigint",
     869            "binary",
     870            "blob",
     871            "both",
     872            "by",
     873            "call",
     874            "cascade",
     875            "case",
     876            "change",
     877            "char",
     878            "character",
     879            "check",
     880            "collate",
     881            "column",
     882            "condition",
     883            "constraint",
     884            "continue",
     885            "convert",
     886            "create",
     887            "cross",
     888            "cube",
     889            "cume_dist",
     890            "current_date",
     891            "current_time",
     892            "current_timestamp",
     893            "current_user",
     894            "cursor",
     895            "database",
     896            "databases",
     897            "day_hour",
     898            "day_microsecond",
     899            "day_minute",
     900            "day_second",
     901            "dec",
     902            "decimal",
     903            "declare",
     904            "default",
     905            "delayed",
     906            "delete",
     907            "dense_rank",
     908            "desc",
     909            "describe",
     910            "deterministic",
     911            "distinct",
     912            "distinctrow",
     913            "div",
     914            "double",
     915            "drop",
     916            "dual",
     917            "each",
     918            "else",
     919            "elseif",
     920            "empty",
     921            "enclosed",
     922            "escaped",
     923            "except",
     924            "exists",
     925            "exit",
     926            "explain",
     927            "false",
     928            "fetch",
     929            "first_value",
     930            "float",
     931            "float4",
     932            "float8",
     933            "for",
     934            "force",
     935            "foreign",
     936            "from",
     937            "fulltext",
     938            "function",
     939            "generated",
     940            "get",
     941            "grant",
     942            "group",
     943            "grouping",
     944            "groups",
     945            "having",
     946            "high_priority",
     947            "hour_microsecond",
     948            "hour_minute",
     949            "hour_second",
     950            "if",
     951            "ignore",
     952            "in",
     953            "index",
     954            "infile",
     955            "inner",
     956            "inout",
     957            "insensitive",
     958            "insert",
     959            "int",
     960            "int1",
     961            "int2",
     962            "int3",
     963            "int4",
     964            "int8",
     965            "integer",
     966            "intersect",
     967            "interval",
     968            "into",
     969            "io_after_gtids",
     970            "io_before_gtids",
     971            "is",
     972            "iterate",
     973            "join",
     974            "json_table",
     975            "key",
     976            "keys",
     977            "kill",
     978            "lag",
     979            "last_value",
     980            "lateral",
     981            "lead",
     982            "leading",
     983            "leave",
     984            "left",
     985            "like",
     986            "limit",
     987            "linear",
     988            "lines",
     989            "load",
     990            "localtime",
     991            "localtimestamp",
     992            "lock",
     993            "long",
     994            "longblob",
     995            "longtext",
     996            "loop",
     997            "low_priority",
     998            "master_bind",
     999            "master_ssl_verify_server_cert",
    1000            "match",
    1001            "maxvalue",
    1002            "mediumblob",
    1003            "mediumint",
    1004            "mediumtext",
    1005            "middleint",
    1006            "minute_microsecond",
    1007            "minute_second",
    1008            "mod",
    1009            "modifies",
    1010            "natural",
    1011            "not",
    1012            "no_write_to_binlog",
    1013            "nth_value",
    1014            "ntile",
    1015            "null",
    1016            "numeric",
    1017            "of",
    1018            "on",
    1019            "optimize",
    1020            "optimizer_costs",
    1021            "option",
    1022            "optionally",
    1023            "or",
    1024            "order",
    1025            "out",
    1026            "outer",
    1027            "outfile",
    1028            "over",
    1029            "partition",
    1030            "percent_rank",
    1031            "precision",
    1032            "primary",
    1033            "procedure",
    1034            "purge",
    1035            "range",
    1036            "rank",
    1037            "read",
    1038            "reads",
    1039            "read_write",
    1040            "real",
    1041            "recursive",
    1042            "references",
    1043            "regexp",
    1044            "release",
    1045            "rename",
    1046            "repeat",
    1047            "replace",
    1048            "require",
    1049            "resignal",
    1050            "restrict",
    1051            "return",
    1052            "revoke",
    1053            "right",
    1054            "rlike",
    1055            "row",
    1056            "rows",
    1057            "row_number",
    1058            "schema",
    1059            "schemas",
    1060            "second_microsecond",
    1061            "select",
    1062            "sensitive",
    1063            "separator",
    1064            "set",
    1065            "show",
    1066            "signal",
    1067            "smallint",
    1068            "spatial",
    1069            "specific",
    1070            "sql",
    1071            "sqlexception",
    1072            "sqlstate",
    1073            "sqlwarning",
    1074            "sql_big_result",
    1075            "sql_calc_found_rows",
    1076            "sql_small_result",
    1077            "ssl",
    1078            "starting",
    1079            "stored",
    1080            "straight_join",
    1081            "system",
    1082            "table",
    1083            "terminated",
    1084            "then",
    1085            "tinyblob",
    1086            "tinyint",
    1087            "tinytext",
    1088            "to",
    1089            "trailing",
    1090            "trigger",
    1091            "true",
    1092            "undo",
    1093            "union",
    1094            "unique",
    1095            "unlock",
    1096            "unsigned",
    1097            "update",
    1098            "usage",
    1099            "use",
    1100            "using",
    1101            "utc_date",
    1102            "utc_time",
    1103            "utc_timestamp",
    1104            "values",
    1105            "varbinary",
    1106            "varchar",
    1107            "varcharacter",
    1108            "varying",
    1109            "virtual",
    1110            "when",
    1111            "where",
    1112            "while",
    1113            "window",
    1114            "with",
    1115            "write",
    1116            "xor",
    1117            "year_month",
    1118            "zerofill",
    1119        }
    1120
    1121        def array_sql(self, expression: exp.Array) -> str:
    1122            self.unsupported("Arrays are not supported by MySQL")
    1123            return self.function_fallback_sql(expression)
    1124
    1125        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1126            self.unsupported("Array operations are not supported by MySQL")
    1127            return self.function_fallback_sql(expression)
    1128
    1129        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1130            return self.func("CONCAT", *expression.flatten())
    1131
    1132        def extract_sql(self, expression: exp.Extract) -> str:
    1133            unit = expression.name
    1134            if unit and unit.lower() == "epoch":
    1135                return self.func("UNIX_TIMESTAMP", expression.expression)
    1136
    1137            return super().extract_sql(expression)
    1138
    1139        def datatype_sql(self, expression: exp.DataType) -> str:
    1140            if (
    1141                self.VARCHAR_REQUIRES_SIZE
    1142                and expression.is_type(exp.DataType.Type.VARCHAR)
    1143                and not expression.expressions
    1144            ):
    1145                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1146                return "TEXT"
    1147
    1148            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1149            result = super().datatype_sql(expression)
    1150            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1151                result = f"{result} UNSIGNED"
    1152
    1153            return result
    1154
    1155        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1156            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1157
    1158        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1159            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1160                return self.func("TIMESTAMP", expression.this)
    1161
    1162            to = self.CAST_MAPPING.get(expression.to.this)
    1163
    1164            if to:
    1165                expression.to.set("this", to)
    1166            return super().cast_sql(expression)
    1167
    1168        def show_sql(self, expression: exp.Show) -> str:
    1169            this = f" {expression.name}"
    1170            full = " FULL" if expression.args.get("full") else ""
    1171            global_ = " GLOBAL" if expression.args.get("global") else ""
    1172
    1173            target = self.sql(expression, "target")
    1174            target = f" {target}" if target else ""
    1175            if expression.name in ("COLUMNS", "INDEX"):
    1176                target = f" FROM{target}"
    1177            elif expression.name == "GRANTS":
    1178                target = f" FOR{target}"
    1179
    1180            db = self._prefixed_sql("FROM", expression, "db")
    1181
    1182            like = self._prefixed_sql("LIKE", expression, "like")
    1183            where = self.sql(expression, "where")
    1184
    1185            types = self.expressions(expression, key="types")
    1186            types = f" {types}" if types else types
    1187            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1188
    1189            if expression.name == "PROFILE":
    1190                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1191                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1192            else:
    1193                offset = ""
    1194                limit = self._oldstyle_limit_sql(expression)
    1195
    1196            log = self._prefixed_sql("IN", expression, "log")
    1197            position = self._prefixed_sql("FROM", expression, "position")
    1198
    1199            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1200
    1201            if expression.name == "ENGINE":
    1202                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1203            else:
    1204                mutex_or_status = ""
    1205
    1206            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1207
    1208        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1209            dtype = self.sql(expression, "dtype")
    1210            if not dtype:
    1211                return super().altercolumn_sql(expression)
    1212
    1213            this = self.sql(expression, "this")
    1214            return f"MODIFY COLUMN {this} {dtype}"
    1215
    1216        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1217            sql = self.sql(expression, arg)
    1218            return f" {prefix} {sql}" if sql else ""
    1219
    1220        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1221            limit = self.sql(expression, "limit")
    1222            offset = self.sql(expression, "offset")
    1223            if limit:
    1224                limit_offset = f"{offset}, {limit}" if offset else limit
    1225                return f" LIMIT {limit_offset}"
    1226            return ""
    1227
    1228        def chr_sql(self, expression: exp.Chr) -> str:
    1229            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1230            charset = expression.args.get("charset")
    1231            using = f" USING {self.sql(charset)}" if charset else ""
    1232            return f"CHAR({this}{using})"
    1233
    1234        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1235            unit = expression.args.get("unit")
    1236
    1237            # Pick an old-enough date to avoid negative timestamp diffs
    1238            start_ts = "'0000-01-01 00:00:00'"
    1239
    1240            # Source: https://stackoverflow.com/a/32955740
    1241            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1242            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1243            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1244
    1245            return self.sql(dateadd)
    1246
    1247        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1248            from_tz = expression.args.get("source_tz")
    1249            to_tz = expression.args.get("target_tz")
    1250            dt = expression.args.get("timestamp")
    1251
    1252            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1253
    1254        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1255            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1256            return self.sql(expression.this)

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

    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

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

     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            "EXPLAIN": TokenType.DESCRIBE,
     196            "FORCE": TokenType.FORCE,
     197            "IGNORE": TokenType.IGNORE,
     198            "KEY": TokenType.KEY,
     199            "LOCK TABLES": TokenType.COMMAND,
     200            "LONGBLOB": TokenType.LONGBLOB,
     201            "LONGTEXT": TokenType.LONGTEXT,
     202            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
     203            "TINYBLOB": TokenType.TINYBLOB,
     204            "TINYTEXT": TokenType.TINYTEXT,
     205            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
     206            "MEDIUMINT": TokenType.MEDIUMINT,
     207            "MEMBER OF": TokenType.MEMBER_OF,
     208            "SEPARATOR": TokenType.SEPARATOR,
     209            "START": TokenType.BEGIN,
     210            "SIGNED": TokenType.BIGINT,
     211            "SIGNED INTEGER": TokenType.BIGINT,
     212            "UNLOCK TABLES": TokenType.COMMAND,
     213            "UNSIGNED": TokenType.UBIGINT,
     214            "UNSIGNED INTEGER": TokenType.UBIGINT,
     215            "YEAR": TokenType.YEAR,
     216            "_ARMSCII8": TokenType.INTRODUCER,
     217            "_ASCII": TokenType.INTRODUCER,
     218            "_BIG5": TokenType.INTRODUCER,
     219            "_BINARY": TokenType.INTRODUCER,
     220            "_CP1250": TokenType.INTRODUCER,
     221            "_CP1251": TokenType.INTRODUCER,
     222            "_CP1256": TokenType.INTRODUCER,
     223            "_CP1257": TokenType.INTRODUCER,
     224            "_CP850": TokenType.INTRODUCER,
     225            "_CP852": TokenType.INTRODUCER,
     226            "_CP866": TokenType.INTRODUCER,
     227            "_CP932": TokenType.INTRODUCER,
     228            "_DEC8": TokenType.INTRODUCER,
     229            "_EUCJPMS": TokenType.INTRODUCER,
     230            "_EUCKR": TokenType.INTRODUCER,
     231            "_GB18030": TokenType.INTRODUCER,
     232            "_GB2312": TokenType.INTRODUCER,
     233            "_GBK": TokenType.INTRODUCER,
     234            "_GEOSTD8": TokenType.INTRODUCER,
     235            "_GREEK": TokenType.INTRODUCER,
     236            "_HEBREW": TokenType.INTRODUCER,
     237            "_HP8": TokenType.INTRODUCER,
     238            "_KEYBCS2": TokenType.INTRODUCER,
     239            "_KOI8R": TokenType.INTRODUCER,
     240            "_KOI8U": TokenType.INTRODUCER,
     241            "_LATIN1": TokenType.INTRODUCER,
     242            "_LATIN2": TokenType.INTRODUCER,
     243            "_LATIN5": TokenType.INTRODUCER,
     244            "_LATIN7": TokenType.INTRODUCER,
     245            "_MACCE": TokenType.INTRODUCER,
     246            "_MACROMAN": TokenType.INTRODUCER,
     247            "_SJIS": TokenType.INTRODUCER,
     248            "_SWE7": TokenType.INTRODUCER,
     249            "_TIS620": TokenType.INTRODUCER,
     250            "_UCS2": TokenType.INTRODUCER,
     251            "_UJIS": TokenType.INTRODUCER,
     252            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
     253            "_UTF8": TokenType.INTRODUCER,
     254            "_UTF16": TokenType.INTRODUCER,
     255            "_UTF16LE": TokenType.INTRODUCER,
     256            "_UTF32": TokenType.INTRODUCER,
     257            "_UTF8MB3": TokenType.INTRODUCER,
     258            "_UTF8MB4": TokenType.INTRODUCER,
     259            "@@": TokenType.SESSION_PARAMETER,
     260        }
     261
     262        COMMANDS = {*tokens.Tokenizer.COMMANDS, TokenType.REPLACE} - {TokenType.SHOW}
     263
     264    class Parser(parser.Parser):
     265        FUNC_TOKENS = {
     266            *parser.Parser.FUNC_TOKENS,
     267            TokenType.DATABASE,
     268            TokenType.SCHEMA,
     269            TokenType.VALUES,
     270        }
     271
     272        CONJUNCTION = {
     273            **parser.Parser.CONJUNCTION,
     274            TokenType.DAMP: exp.And,
     275            TokenType.XOR: exp.Xor,
     276        }
     277
     278        DISJUNCTION = {
     279            **parser.Parser.DISJUNCTION,
     280            TokenType.DPIPE: exp.Or,
     281        }
     282
     283        TABLE_ALIAS_TOKENS = (
     284            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
     285        )
     286
     287        RANGE_PARSERS = {
     288            **parser.Parser.RANGE_PARSERS,
     289            TokenType.MEMBER_OF: lambda self, this: self.expression(
     290                exp.JSONArrayContains,
     291                this=this,
     292                expression=self._parse_wrapped(self._parse_expression),
     293            ),
     294        }
     295
     296        FUNCTIONS = {
     297            **parser.Parser.FUNCTIONS,
     298            "CHAR_LENGTH": exp.Length.from_arg_list,
     299            "CHARACTER_LENGTH": exp.Length.from_arg_list,
     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            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
     304            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
     305            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
     306            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
     307            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     308            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     309            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     310            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     311            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
     312            "ISNULL": isnull_to_is_null,
     313            "LOCATE": locate_to_strposition,
     314            "MAKETIME": exp.TimeFromParts.from_arg_list,
     315            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     316            "MONTHNAME": lambda args: exp.TimeToStr(
     317                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     318                format=exp.Literal.string("%B"),
     319            ),
     320            "STR_TO_DATE": _str_to_date,
     321            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
     322            "TO_DAYS": lambda args: exp.paren(
     323                exp.DateDiff(
     324                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
     325                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
     326                    unit=exp.var("DAY"),
     327                )
     328                + 1
     329            ),
     330            "WEEK": lambda args: exp.Week(
     331                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
     332            ),
     333            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     334            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
     335        }
     336
     337        FUNCTION_PARSERS = {
     338            **parser.Parser.FUNCTION_PARSERS,
     339            "CHAR": lambda self: self.expression(
     340                exp.Chr,
     341                expressions=self._parse_csv(self._parse_assignment),
     342                charset=self._match(TokenType.USING) and self._parse_var(),
     343            ),
     344            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
     345            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
     346            "VALUES": lambda self: self.expression(
     347                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
     348            ),
     349            "JSON_VALUE": lambda self: self._parse_json_value(),
     350        }
     351
     352        STATEMENT_PARSERS = {
     353            **parser.Parser.STATEMENT_PARSERS,
     354            TokenType.SHOW: lambda self: self._parse_show(),
     355        }
     356
     357        SHOW_PARSERS = {
     358            "BINARY LOGS": _show_parser("BINARY LOGS"),
     359            "MASTER LOGS": _show_parser("BINARY LOGS"),
     360            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
     361            "CHARACTER SET": _show_parser("CHARACTER SET"),
     362            "CHARSET": _show_parser("CHARACTER SET"),
     363            "COLLATION": _show_parser("COLLATION"),
     364            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
     365            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
     366            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
     367            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
     368            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
     369            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
     370            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
     371            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
     372            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
     373            "DATABASES": _show_parser("DATABASES"),
     374            "SCHEMAS": _show_parser("DATABASES"),
     375            "ENGINE": _show_parser("ENGINE", target=True),
     376            "STORAGE ENGINES": _show_parser("ENGINES"),
     377            "ENGINES": _show_parser("ENGINES"),
     378            "ERRORS": _show_parser("ERRORS"),
     379            "EVENTS": _show_parser("EVENTS"),
     380            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
     381            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
     382            "GRANTS": _show_parser("GRANTS", target="FOR"),
     383            "INDEX": _show_parser("INDEX", target="FROM"),
     384            "MASTER STATUS": _show_parser("MASTER STATUS"),
     385            "OPEN TABLES": _show_parser("OPEN TABLES"),
     386            "PLUGINS": _show_parser("PLUGINS"),
     387            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
     388            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
     389            "PRIVILEGES": _show_parser("PRIVILEGES"),
     390            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
     391            "PROCESSLIST": _show_parser("PROCESSLIST"),
     392            "PROFILE": _show_parser("PROFILE"),
     393            "PROFILES": _show_parser("PROFILES"),
     394            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
     395            "REPLICAS": _show_parser("REPLICAS"),
     396            "SLAVE HOSTS": _show_parser("REPLICAS"),
     397            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
     398            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
     399            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
     400            "SESSION STATUS": _show_parser("STATUS"),
     401            "STATUS": _show_parser("STATUS"),
     402            "TABLE STATUS": _show_parser("TABLE STATUS"),
     403            "FULL TABLES": _show_parser("TABLES", full=True),
     404            "TABLES": _show_parser("TABLES"),
     405            "TRIGGERS": _show_parser("TRIGGERS"),
     406            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
     407            "SESSION VARIABLES": _show_parser("VARIABLES"),
     408            "VARIABLES": _show_parser("VARIABLES"),
     409            "WARNINGS": _show_parser("WARNINGS"),
     410        }
     411
     412        PROPERTY_PARSERS = {
     413            **parser.Parser.PROPERTY_PARSERS,
     414            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
     415        }
     416
     417        SET_PARSERS = {
     418            **parser.Parser.SET_PARSERS,
     419            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
     420            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
     421            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     422            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
     423            "NAMES": lambda self: self._parse_set_item_names(),
     424        }
     425
     426        CONSTRAINT_PARSERS = {
     427            **parser.Parser.CONSTRAINT_PARSERS,
     428            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
     429            "INDEX": lambda self: self._parse_index_constraint(),
     430            "KEY": lambda self: self._parse_index_constraint(),
     431            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
     432        }
     433
     434        ALTER_PARSERS = {
     435            **parser.Parser.ALTER_PARSERS,
     436            "MODIFY": lambda self: self._parse_alter_table_alter(),
     437        }
     438
     439        SCHEMA_UNNAMED_CONSTRAINTS = {
     440            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
     441            "FULLTEXT",
     442            "INDEX",
     443            "KEY",
     444            "SPATIAL",
     445        }
     446
     447        PROFILE_TYPES: parser.OPTIONS_TYPE = {
     448            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
     449            "BLOCK": ("IO",),
     450            "CONTEXT": ("SWITCHES",),
     451            "PAGE": ("FAULTS",),
     452        }
     453
     454        TYPE_TOKENS = {
     455            *parser.Parser.TYPE_TOKENS,
     456            TokenType.SET,
     457        }
     458
     459        ENUM_TYPE_TOKENS = {
     460            *parser.Parser.ENUM_TYPE_TOKENS,
     461            TokenType.SET,
     462        }
     463
     464        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
     465        OPERATION_MODIFIERS = {
     466            "HIGH_PRIORITY",
     467            "STRAIGHT_JOIN",
     468            "SQL_SMALL_RESULT",
     469            "SQL_BIG_RESULT",
     470            "SQL_BUFFER_RESULT",
     471            "SQL_NO_CACHE",
     472            "SQL_CALC_FOUND_ROWS",
     473        }
     474
     475        LOG_DEFAULTS_TO_LN = True
     476        STRING_ALIASES = True
     477        VALUES_FOLLOWED_BY_PAREN = False
     478        SUPPORTS_PARTITION_SELECTION = True
     479
     480        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
     481            this = self._parse_id_var()
     482            if not self._match(TokenType.L_PAREN):
     483                return this
     484
     485            expression = self._parse_number()
     486            self._match_r_paren()
     487            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
     488
     489        def _parse_index_constraint(
     490            self, kind: t.Optional[str] = None
     491        ) -> exp.IndexColumnConstraint:
     492            if kind:
     493                self._match_texts(("INDEX", "KEY"))
     494
     495            this = self._parse_id_var(any_token=False)
     496            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
     497            expressions = self._parse_wrapped_csv(self._parse_ordered)
     498
     499            options = []
     500            while True:
     501                if self._match_text_seq("KEY_BLOCK_SIZE"):
     502                    self._match(TokenType.EQ)
     503                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
     504                elif self._match(TokenType.USING):
     505                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
     506                elif self._match_text_seq("WITH", "PARSER"):
     507                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
     508                elif self._match(TokenType.COMMENT):
     509                    opt = exp.IndexConstraintOption(comment=self._parse_string())
     510                elif self._match_text_seq("VISIBLE"):
     511                    opt = exp.IndexConstraintOption(visible=True)
     512                elif self._match_text_seq("INVISIBLE"):
     513                    opt = exp.IndexConstraintOption(visible=False)
     514                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
     515                    self._match(TokenType.EQ)
     516                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
     517                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
     518                    self._match(TokenType.EQ)
     519                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
     520                else:
     521                    opt = None
     522
     523                if not opt:
     524                    break
     525
     526                options.append(opt)
     527
     528            return self.expression(
     529                exp.IndexColumnConstraint,
     530                this=this,
     531                expressions=expressions,
     532                kind=kind,
     533                index_type=index_type,
     534                options=options,
     535            )
     536
     537        def _parse_show_mysql(
     538            self,
     539            this: str,
     540            target: bool | str = False,
     541            full: t.Optional[bool] = None,
     542            global_: t.Optional[bool] = None,
     543        ) -> exp.Show:
     544            if target:
     545                if isinstance(target, str):
     546                    self._match_text_seq(target)
     547                target_id = self._parse_id_var()
     548            else:
     549                target_id = None
     550
     551            log = self._parse_string() if self._match_text_seq("IN") else None
     552
     553            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
     554                position = self._parse_number() if self._match_text_seq("FROM") else None
     555                db = None
     556            else:
     557                position = None
     558                db = None
     559
     560                if self._match(TokenType.FROM):
     561                    db = self._parse_id_var()
     562                elif self._match(TokenType.DOT):
     563                    db = target_id
     564                    target_id = self._parse_id_var()
     565
     566            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
     567
     568            like = self._parse_string() if self._match_text_seq("LIKE") else None
     569            where = self._parse_where()
     570
     571            if this == "PROFILE":
     572                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
     573                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
     574                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
     575                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
     576            else:
     577                types, query = None, None
     578                offset, limit = self._parse_oldstyle_limit()
     579
     580            mutex = True if self._match_text_seq("MUTEX") else None
     581            mutex = False if self._match_text_seq("STATUS") else mutex
     582
     583            return self.expression(
     584                exp.Show,
     585                this=this,
     586                target=target_id,
     587                full=full,
     588                log=log,
     589                position=position,
     590                db=db,
     591                channel=channel,
     592                like=like,
     593                where=where,
     594                types=types,
     595                query=query,
     596                offset=offset,
     597                limit=limit,
     598                mutex=mutex,
     599                **{"global": global_},  # type: ignore
     600            )
     601
     602        def _parse_oldstyle_limit(
     603            self,
     604        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
     605            limit = None
     606            offset = None
     607            if self._match_text_seq("LIMIT"):
     608                parts = self._parse_csv(self._parse_number)
     609                if len(parts) == 1:
     610                    limit = parts[0]
     611                elif len(parts) == 2:
     612                    limit = parts[1]
     613                    offset = parts[0]
     614
     615            return offset, limit
     616
     617        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
     618            this = self._parse_string() or self._parse_unquoted_field()
     619            return self.expression(exp.SetItem, this=this, kind=kind)
     620
     621        def _parse_set_item_names(self) -> exp.Expression:
     622            charset = self._parse_string() or self._parse_unquoted_field()
     623            if self._match_text_seq("COLLATE"):
     624                collate = self._parse_string() or self._parse_unquoted_field()
     625            else:
     626                collate = None
     627
     628            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
     629
     630        def _parse_type(
     631            self, parse_interval: bool = True, fallback_to_identifier: bool = False
     632        ) -> t.Optional[exp.Expression]:
     633            # mysql binary is special and can work anywhere, even in order by operations
     634            # it operates like a no paren func
     635            if self._match(TokenType.BINARY, advance=False):
     636                data_type = self._parse_types(check_func=True, allow_identifiers=False)
     637
     638                if isinstance(data_type, exp.DataType):
     639                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
     640
     641            return super()._parse_type(
     642                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
     643            )
     644
     645        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
     646            def concat_exprs(
     647                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
     648            ) -> exp.Expression:
     649                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
     650                    concat_exprs = [
     651                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
     652                    ]
     653                    node.set("expressions", concat_exprs)
     654                    return node
     655                if len(exprs) == 1:
     656                    return exprs[0]
     657                return self.expression(exp.Concat, expressions=args, safe=True)
     658
     659            args = self._parse_csv(self._parse_lambda)
     660
     661            if args:
     662                order = args[-1] if isinstance(args[-1], exp.Order) else None
     663
     664                if order:
     665                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
     666                    # remove 'expr' from exp.Order and add it back to args
     667                    args[-1] = order.this
     668                    order.set("this", concat_exprs(order.this, args))
     669
     670                this = order or concat_exprs(args[0], args)
     671            else:
     672                this = None
     673
     674            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
     675
     676            return self.expression(exp.GroupConcat, this=this, separator=separator)
     677
     678        def _parse_json_value(self) -> exp.JSONValue:
     679            this = self._parse_bitwise()
     680            self._match(TokenType.COMMA)
     681            path = self._parse_bitwise()
     682
     683            returning = self._match(TokenType.RETURNING) and self._parse_type()
     684
     685            return self.expression(
     686                exp.JSONValue,
     687                this=this,
     688                path=self.dialect.to_json_path(path),
     689                returning=returning,
     690                on_condition=self._parse_on_condition(),
     691            )
     692
     693    class Generator(generator.Generator):
     694        INTERVAL_ALLOWS_PLURAL_FORM = False
     695        LOCKING_READS_SUPPORTED = True
     696        NULL_ORDERING_SUPPORTED = None
     697        JOIN_HINTS = False
     698        TABLE_HINTS = True
     699        DUPLICATE_KEY_UPDATE_WITH_SET = False
     700        QUERY_HINT_SEP = " "
     701        VALUES_AS_TABLE = False
     702        NVL2_SUPPORTED = False
     703        LAST_DAY_SUPPORTS_DATE_PART = False
     704        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     705        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     706        JSON_KEY_VALUE_PAIR_SEP = ","
     707        SUPPORTS_TO_NUMBER = False
     708        PARSE_JSON_NAME: t.Optional[str] = None
     709        PAD_FILL_PATTERN_IS_REQUIRED = True
     710        WRAP_DERIVED_VALUES = False
     711        VARCHAR_REQUIRES_SIZE = True
     712        SUPPORTS_MEDIAN = False
     713
     714        TRANSFORMS = {
     715            **generator.Generator.TRANSFORMS,
     716            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     717            exp.CurrentDate: no_paren_current_date_sql,
     718            exp.DateDiff: _remove_ts_or_ds_to_date(
     719                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     720            ),
     721            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     722            exp.DateStrToDate: datestrtodate_sql,
     723            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     724            exp.DateTrunc: _date_trunc_sql,
     725            exp.Day: _remove_ts_or_ds_to_date(),
     726            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     727            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     728            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     729            exp.GroupConcat: lambda self,
     730            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     731            exp.ILike: no_ilike_sql,
     732            exp.JSONExtractScalar: arrow_json_extract_sql,
     733            exp.Length: rename_func("CHAR_LENGTH"),
     734            exp.Max: max_or_greatest,
     735            exp.Min: min_or_least,
     736            exp.Month: _remove_ts_or_ds_to_date(),
     737            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     738            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     739            exp.Pivot: no_pivot_sql,
     740            exp.Select: transforms.preprocess(
     741                [
     742                    transforms.eliminate_distinct_on,
     743                    transforms.eliminate_semi_and_anti_joins,
     744                    transforms.eliminate_qualify,
     745                    transforms.eliminate_full_outer_join,
     746                    transforms.unnest_generate_date_array_using_recursive_cte,
     747                ]
     748            ),
     749            exp.StrPosition: strposition_to_locate_sql,
     750            exp.StrToDate: _str_to_date_sql,
     751            exp.StrToTime: _str_to_date_sql,
     752            exp.Stuff: rename_func("INSERT"),
     753            exp.TableSample: no_tablesample_sql,
     754            exp.TimeFromParts: rename_func("MAKETIME"),
     755            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     756            exp.TimestampDiff: lambda self, e: self.func(
     757                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     758            ),
     759            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     760            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     761            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     762                self,
     763                e,
     764                include_precision=not e.args.get("zone"),
     765            ),
     766            exp.TimeToStr: _remove_ts_or_ds_to_date(
     767                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     768            ),
     769            exp.Trim: trim_sql,
     770            exp.TryCast: no_trycast_sql,
     771            exp.TsOrDsAdd: date_add_sql("ADD"),
     772            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     773            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     774            exp.UnixToTime: _unix_to_time_sql,
     775            exp.Week: _remove_ts_or_ds_to_date(),
     776            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     777            exp.Year: _remove_ts_or_ds_to_date(),
     778        }
     779
     780        UNSIGNED_TYPE_MAPPING = {
     781            exp.DataType.Type.UBIGINT: "BIGINT",
     782            exp.DataType.Type.UINT: "INT",
     783            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     784            exp.DataType.Type.USMALLINT: "SMALLINT",
     785            exp.DataType.Type.UTINYINT: "TINYINT",
     786            exp.DataType.Type.UDECIMAL: "DECIMAL",
     787        }
     788
     789        TIMESTAMP_TYPE_MAPPING = {
     790            exp.DataType.Type.TIMESTAMP: "DATETIME",
     791            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     792            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     793        }
     794
     795        TYPE_MAPPING = {
     796            **generator.Generator.TYPE_MAPPING,
     797            **UNSIGNED_TYPE_MAPPING,
     798            **TIMESTAMP_TYPE_MAPPING,
     799        }
     800
     801        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     802        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     803        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     804        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     805        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     806        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     807
     808        PROPERTIES_LOCATION = {
     809            **generator.Generator.PROPERTIES_LOCATION,
     810            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     811            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     812        }
     813
     814        LIMIT_FETCH = "LIMIT"
     815
     816        LIMIT_ONLY_LITERALS = True
     817
     818        CHAR_CAST_MAPPING = dict.fromkeys(
     819            (
     820                exp.DataType.Type.LONGTEXT,
     821                exp.DataType.Type.LONGBLOB,
     822                exp.DataType.Type.MEDIUMBLOB,
     823                exp.DataType.Type.MEDIUMTEXT,
     824                exp.DataType.Type.TEXT,
     825                exp.DataType.Type.TINYBLOB,
     826                exp.DataType.Type.TINYTEXT,
     827                exp.DataType.Type.VARCHAR,
     828            ),
     829            "CHAR",
     830        )
     831        SIGNED_CAST_MAPPING = dict.fromkeys(
     832            (
     833                exp.DataType.Type.BIGINT,
     834                exp.DataType.Type.BOOLEAN,
     835                exp.DataType.Type.INT,
     836                exp.DataType.Type.SMALLINT,
     837                exp.DataType.Type.TINYINT,
     838                exp.DataType.Type.MEDIUMINT,
     839            ),
     840            "SIGNED",
     841        )
     842
     843        # MySQL doesn't support many datatypes in cast.
     844        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     845        CAST_MAPPING = {
     846            **CHAR_CAST_MAPPING,
     847            **SIGNED_CAST_MAPPING,
     848            exp.DataType.Type.UBIGINT: "UNSIGNED",
     849        }
     850
     851        TIMESTAMP_FUNC_TYPES = {
     852            exp.DataType.Type.TIMESTAMPTZ,
     853            exp.DataType.Type.TIMESTAMPLTZ,
     854        }
     855
     856        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     857        RESERVED_KEYWORDS = {
     858            "accessible",
     859            "add",
     860            "all",
     861            "alter",
     862            "analyze",
     863            "and",
     864            "as",
     865            "asc",
     866            "asensitive",
     867            "before",
     868            "between",
     869            "bigint",
     870            "binary",
     871            "blob",
     872            "both",
     873            "by",
     874            "call",
     875            "cascade",
     876            "case",
     877            "change",
     878            "char",
     879            "character",
     880            "check",
     881            "collate",
     882            "column",
     883            "condition",
     884            "constraint",
     885            "continue",
     886            "convert",
     887            "create",
     888            "cross",
     889            "cube",
     890            "cume_dist",
     891            "current_date",
     892            "current_time",
     893            "current_timestamp",
     894            "current_user",
     895            "cursor",
     896            "database",
     897            "databases",
     898            "day_hour",
     899            "day_microsecond",
     900            "day_minute",
     901            "day_second",
     902            "dec",
     903            "decimal",
     904            "declare",
     905            "default",
     906            "delayed",
     907            "delete",
     908            "dense_rank",
     909            "desc",
     910            "describe",
     911            "deterministic",
     912            "distinct",
     913            "distinctrow",
     914            "div",
     915            "double",
     916            "drop",
     917            "dual",
     918            "each",
     919            "else",
     920            "elseif",
     921            "empty",
     922            "enclosed",
     923            "escaped",
     924            "except",
     925            "exists",
     926            "exit",
     927            "explain",
     928            "false",
     929            "fetch",
     930            "first_value",
     931            "float",
     932            "float4",
     933            "float8",
     934            "for",
     935            "force",
     936            "foreign",
     937            "from",
     938            "fulltext",
     939            "function",
     940            "generated",
     941            "get",
     942            "grant",
     943            "group",
     944            "grouping",
     945            "groups",
     946            "having",
     947            "high_priority",
     948            "hour_microsecond",
     949            "hour_minute",
     950            "hour_second",
     951            "if",
     952            "ignore",
     953            "in",
     954            "index",
     955            "infile",
     956            "inner",
     957            "inout",
     958            "insensitive",
     959            "insert",
     960            "int",
     961            "int1",
     962            "int2",
     963            "int3",
     964            "int4",
     965            "int8",
     966            "integer",
     967            "intersect",
     968            "interval",
     969            "into",
     970            "io_after_gtids",
     971            "io_before_gtids",
     972            "is",
     973            "iterate",
     974            "join",
     975            "json_table",
     976            "key",
     977            "keys",
     978            "kill",
     979            "lag",
     980            "last_value",
     981            "lateral",
     982            "lead",
     983            "leading",
     984            "leave",
     985            "left",
     986            "like",
     987            "limit",
     988            "linear",
     989            "lines",
     990            "load",
     991            "localtime",
     992            "localtimestamp",
     993            "lock",
     994            "long",
     995            "longblob",
     996            "longtext",
     997            "loop",
     998            "low_priority",
     999            "master_bind",
    1000            "master_ssl_verify_server_cert",
    1001            "match",
    1002            "maxvalue",
    1003            "mediumblob",
    1004            "mediumint",
    1005            "mediumtext",
    1006            "middleint",
    1007            "minute_microsecond",
    1008            "minute_second",
    1009            "mod",
    1010            "modifies",
    1011            "natural",
    1012            "not",
    1013            "no_write_to_binlog",
    1014            "nth_value",
    1015            "ntile",
    1016            "null",
    1017            "numeric",
    1018            "of",
    1019            "on",
    1020            "optimize",
    1021            "optimizer_costs",
    1022            "option",
    1023            "optionally",
    1024            "or",
    1025            "order",
    1026            "out",
    1027            "outer",
    1028            "outfile",
    1029            "over",
    1030            "partition",
    1031            "percent_rank",
    1032            "precision",
    1033            "primary",
    1034            "procedure",
    1035            "purge",
    1036            "range",
    1037            "rank",
    1038            "read",
    1039            "reads",
    1040            "read_write",
    1041            "real",
    1042            "recursive",
    1043            "references",
    1044            "regexp",
    1045            "release",
    1046            "rename",
    1047            "repeat",
    1048            "replace",
    1049            "require",
    1050            "resignal",
    1051            "restrict",
    1052            "return",
    1053            "revoke",
    1054            "right",
    1055            "rlike",
    1056            "row",
    1057            "rows",
    1058            "row_number",
    1059            "schema",
    1060            "schemas",
    1061            "second_microsecond",
    1062            "select",
    1063            "sensitive",
    1064            "separator",
    1065            "set",
    1066            "show",
    1067            "signal",
    1068            "smallint",
    1069            "spatial",
    1070            "specific",
    1071            "sql",
    1072            "sqlexception",
    1073            "sqlstate",
    1074            "sqlwarning",
    1075            "sql_big_result",
    1076            "sql_calc_found_rows",
    1077            "sql_small_result",
    1078            "ssl",
    1079            "starting",
    1080            "stored",
    1081            "straight_join",
    1082            "system",
    1083            "table",
    1084            "terminated",
    1085            "then",
    1086            "tinyblob",
    1087            "tinyint",
    1088            "tinytext",
    1089            "to",
    1090            "trailing",
    1091            "trigger",
    1092            "true",
    1093            "undo",
    1094            "union",
    1095            "unique",
    1096            "unlock",
    1097            "unsigned",
    1098            "update",
    1099            "usage",
    1100            "use",
    1101            "using",
    1102            "utc_date",
    1103            "utc_time",
    1104            "utc_timestamp",
    1105            "values",
    1106            "varbinary",
    1107            "varchar",
    1108            "varcharacter",
    1109            "varying",
    1110            "virtual",
    1111            "when",
    1112            "where",
    1113            "while",
    1114            "window",
    1115            "with",
    1116            "write",
    1117            "xor",
    1118            "year_month",
    1119            "zerofill",
    1120        }
    1121
    1122        def array_sql(self, expression: exp.Array) -> str:
    1123            self.unsupported("Arrays are not supported by MySQL")
    1124            return self.function_fallback_sql(expression)
    1125
    1126        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1127            self.unsupported("Array operations are not supported by MySQL")
    1128            return self.function_fallback_sql(expression)
    1129
    1130        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1131            return self.func("CONCAT", *expression.flatten())
    1132
    1133        def extract_sql(self, expression: exp.Extract) -> str:
    1134            unit = expression.name
    1135            if unit and unit.lower() == "epoch":
    1136                return self.func("UNIX_TIMESTAMP", expression.expression)
    1137
    1138            return super().extract_sql(expression)
    1139
    1140        def datatype_sql(self, expression: exp.DataType) -> str:
    1141            if (
    1142                self.VARCHAR_REQUIRES_SIZE
    1143                and expression.is_type(exp.DataType.Type.VARCHAR)
    1144                and not expression.expressions
    1145            ):
    1146                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1147                return "TEXT"
    1148
    1149            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1150            result = super().datatype_sql(expression)
    1151            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1152                result = f"{result} UNSIGNED"
    1153
    1154            return result
    1155
    1156        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1157            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1158
    1159        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1160            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1161                return self.func("TIMESTAMP", expression.this)
    1162
    1163            to = self.CAST_MAPPING.get(expression.to.this)
    1164
    1165            if to:
    1166                expression.to.set("this", to)
    1167            return super().cast_sql(expression)
    1168
    1169        def show_sql(self, expression: exp.Show) -> str:
    1170            this = f" {expression.name}"
    1171            full = " FULL" if expression.args.get("full") else ""
    1172            global_ = " GLOBAL" if expression.args.get("global") else ""
    1173
    1174            target = self.sql(expression, "target")
    1175            target = f" {target}" if target else ""
    1176            if expression.name in ("COLUMNS", "INDEX"):
    1177                target = f" FROM{target}"
    1178            elif expression.name == "GRANTS":
    1179                target = f" FOR{target}"
    1180
    1181            db = self._prefixed_sql("FROM", expression, "db")
    1182
    1183            like = self._prefixed_sql("LIKE", expression, "like")
    1184            where = self.sql(expression, "where")
    1185
    1186            types = self.expressions(expression, key="types")
    1187            types = f" {types}" if types else types
    1188            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1189
    1190            if expression.name == "PROFILE":
    1191                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1192                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1193            else:
    1194                offset = ""
    1195                limit = self._oldstyle_limit_sql(expression)
    1196
    1197            log = self._prefixed_sql("IN", expression, "log")
    1198            position = self._prefixed_sql("FROM", expression, "position")
    1199
    1200            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1201
    1202            if expression.name == "ENGINE":
    1203                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1204            else:
    1205                mutex_or_status = ""
    1206
    1207            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1208
    1209        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1210            dtype = self.sql(expression, "dtype")
    1211            if not dtype:
    1212                return super().altercolumn_sql(expression)
    1213
    1214            this = self.sql(expression, "this")
    1215            return f"MODIFY COLUMN {this} {dtype}"
    1216
    1217        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1218            sql = self.sql(expression, arg)
    1219            return f" {prefix} {sql}" if sql else ""
    1220
    1221        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1222            limit = self.sql(expression, "limit")
    1223            offset = self.sql(expression, "offset")
    1224            if limit:
    1225                limit_offset = f"{offset}, {limit}" if offset else limit
    1226                return f" LIMIT {limit_offset}"
    1227            return ""
    1228
    1229        def chr_sql(self, expression: exp.Chr) -> str:
    1230            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1231            charset = expression.args.get("charset")
    1232            using = f" USING {self.sql(charset)}" if charset else ""
    1233            return f"CHAR({this}{using})"
    1234
    1235        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1236            unit = expression.args.get("unit")
    1237
    1238            # Pick an old-enough date to avoid negative timestamp diffs
    1239            start_ts = "'0000-01-01 00:00:00'"
    1240
    1241            # Source: https://stackoverflow.com/a/32955740
    1242            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1243            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1244            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1245
    1246            return self.sql(dateadd)
    1247
    1248        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1249            from_tz = expression.args.get("source_tz")
    1250            to_tz = expression.args.get("target_tz")
    1251            dt = expression.args.get("timestamp")
    1252
    1253            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1254
    1255        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1256            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1257            return self.sql(expression.this)

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

##### Inherited Members

sqlglot.dialects.dialect.Dialect
  Dialect
  INDEX_OFFSET
  WEEK_OFFSET
  UNNEST_COLUMN_ONLY
  ALIAS_POST_TABLESAMPLE
  TABLESAMPLE_SIZE_IS_PERCENT
  STRICT_STRING_CONCAT
  COPY_PARAMS_ARE_CSV
  NORMALIZE_FUNCTIONS
  PRESERVE_ORIGINAL_NAMES
  LOG_BASE_FIRST
  NULL_ORDERING
  TYPED_DIVISION
  CONCAT_COALESCE
  HEX_LOWERCASE
  DATE_FORMAT
  DATEINT_FORMAT
  FORMAT_MAPPING
  PSEUDOCOLUMNS
  PREFER_CTE_ALIAS_COLUMN
  FORCE_EARLY_ALIAS_REF_EXPANSION
  EXPAND_ALIAS_REFS_EARLY_ONLY_IN_GROUP_BY
  SUPPORTS_ORDER_BY_ALL
  HAS_DISTINCT_ARRAY_CONSTRUCTORS
  SUPPORTS_FIXED_SIZE_ARRAYS
  STRICT_JSON_PATH_SYNTAX
  ON_CONDITION_EMPTY_BEFORE_ERROR
  ARRAY_AGG_INCLUDES_NULLS
  REGEXP_EXTRACT_DEFAULT_GROUP
  SET_OP_DISTINCT_BY_DEFAULT
  CREATABLE_KIND_MAPPING
  DATE_PART_MAPPING
  TYPE_TO_EXPRESSIONS
  ANNOTATORS
  get_or_raise
  format_time
  settings
  normalize_identifier
  case_sensitive
  can_identify
  quote_identifier
  to_json_path
  parse
  parse_into
  generate
  transpile
  tokenize
  tokenizer
  jsonpath_tokenizer
  parser
  generator

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

    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            "EXPLAIN": TokenType.DESCRIBE,
    196            "FORCE": TokenType.FORCE,
    197            "IGNORE": TokenType.IGNORE,
    198            "KEY": TokenType.KEY,
    199            "LOCK TABLES": TokenType.COMMAND,
    200            "LONGBLOB": TokenType.LONGBLOB,
    201            "LONGTEXT": TokenType.LONGTEXT,
    202            "MEDIUMBLOB": TokenType.MEDIUMBLOB,
    203            "TINYBLOB": TokenType.TINYBLOB,
    204            "TINYTEXT": TokenType.TINYTEXT,
    205            "MEDIUMTEXT": TokenType.MEDIUMTEXT,
    206            "MEDIUMINT": TokenType.MEDIUMINT,
    207            "MEMBER OF": TokenType.MEMBER_OF,
    208            "SEPARATOR": TokenType.SEPARATOR,
    209            "START": TokenType.BEGIN,
    210            "SIGNED": TokenType.BIGINT,
    211            "SIGNED INTEGER": TokenType.BIGINT,
    212            "UNLOCK TABLES": TokenType.COMMAND,
    213            "UNSIGNED": TokenType.UBIGINT,
    214            "UNSIGNED INTEGER": TokenType.UBIGINT,
    215            "YEAR": TokenType.YEAR,
    216            "_ARMSCII8": TokenType.INTRODUCER,
    217            "_ASCII": TokenType.INTRODUCER,
    218            "_BIG5": TokenType.INTRODUCER,
    219            "_BINARY": TokenType.INTRODUCER,
    220            "_CP1250": TokenType.INTRODUCER,
    221            "_CP1251": TokenType.INTRODUCER,
    222            "_CP1256": TokenType.INTRODUCER,
    223            "_CP1257": TokenType.INTRODUCER,
    224            "_CP850": TokenType.INTRODUCER,
    225            "_CP852": TokenType.INTRODUCER,
    226            "_CP866": TokenType.INTRODUCER,
    227            "_CP932": TokenType.INTRODUCER,
    228            "_DEC8": TokenType.INTRODUCER,
    229            "_EUCJPMS": TokenType.INTRODUCER,
    230            "_EUCKR": TokenType.INTRODUCER,
    231            "_GB18030": TokenType.INTRODUCER,
    232            "_GB2312": TokenType.INTRODUCER,
    233            "_GBK": TokenType.INTRODUCER,
    234            "_GEOSTD8": TokenType.INTRODUCER,
    235            "_GREEK": TokenType.INTRODUCER,
    236            "_HEBREW": TokenType.INTRODUCER,
    237            "_HP8": TokenType.INTRODUCER,
    238            "_KEYBCS2": TokenType.INTRODUCER,
    239            "_KOI8R": TokenType.INTRODUCER,
    240            "_KOI8U": TokenType.INTRODUCER,
    241            "_LATIN1": TokenType.INTRODUCER,
    242            "_LATIN2": TokenType.INTRODUCER,
    243            "_LATIN5": TokenType.INTRODUCER,
    244            "_LATIN7": TokenType.INTRODUCER,
    245            "_MACCE": TokenType.INTRODUCER,
    246            "_MACROMAN": TokenType.INTRODUCER,
    247            "_SJIS": TokenType.INTRODUCER,
    248            "_SWE7": TokenType.INTRODUCER,
    249            "_TIS620": TokenType.INTRODUCER,
    250            "_UCS2": TokenType.INTRODUCER,
    251            "_UJIS": TokenType.INTRODUCER,
    252            # https://dev.mysql.com/doc/refman/8.0/en/string-literals.html
    253            "_UTF8": TokenType.INTRODUCER,
    254            "_UTF16": TokenType.INTRODUCER,
    255            "_UTF16LE": TokenType.INTRODUCER,
    256            "_UTF32": TokenType.INTRODUCER,
    257            "_UTF8MB3": TokenType.INTRODUCER,
    258            "_UTF8MB4": TokenType.INTRODUCER,
    259            "@@": TokenType.SESSION_PARAMETER,
    260        }
    261
    262        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_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, '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'>, 'INT128': <TokenType.INT128: 'INT128'>, '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'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, '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'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.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'>, '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.RENAME: 'RENAME'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.FETCH: 'FETCH'>}

##### 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
  reset
  tokenize
  tokenize_rs
  size
  sql
  tokens

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

    264    class Parser(parser.Parser):
    265        FUNC_TOKENS = {
    266            *parser.Parser.FUNC_TOKENS,
    267            TokenType.DATABASE,
    268            TokenType.SCHEMA,
    269            TokenType.VALUES,
    270        }
    271
    272        CONJUNCTION = {
    273            **parser.Parser.CONJUNCTION,
    274            TokenType.DAMP: exp.And,
    275            TokenType.XOR: exp.Xor,
    276        }
    277
    278        DISJUNCTION = {
    279            **parser.Parser.DISJUNCTION,
    280            TokenType.DPIPE: exp.Or,
    281        }
    282
    283        TABLE_ALIAS_TOKENS = (
    284            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    285        )
    286
    287        RANGE_PARSERS = {
    288            **parser.Parser.RANGE_PARSERS,
    289            TokenType.MEMBER_OF: lambda self, this: self.expression(
    290                exp.JSONArrayContains,
    291                this=this,
    292                expression=self._parse_wrapped(self._parse_expression),
    293            ),
    294        }
    295
    296        FUNCTIONS = {
    297            **parser.Parser.FUNCTIONS,
    298            "CHAR_LENGTH": exp.Length.from_arg_list,
    299            "CHARACTER_LENGTH": exp.Length.from_arg_list,
    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            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    304            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    305            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    306            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    307            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    308            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    309            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    310            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    311            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    312            "ISNULL": isnull_to_is_null,
    313            "LOCATE": locate_to_strposition,
    314            "MAKETIME": exp.TimeFromParts.from_arg_list,
    315            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    316            "MONTHNAME": lambda args: exp.TimeToStr(
    317                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    318                format=exp.Literal.string("%B"),
    319            ),
    320            "STR_TO_DATE": _str_to_date,
    321            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    322            "TO_DAYS": lambda args: exp.paren(
    323                exp.DateDiff(
    324                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    325                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    326                    unit=exp.var("DAY"),
    327                )
    328                + 1
    329            ),
    330            "WEEK": lambda args: exp.Week(
    331                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    332            ),
    333            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    334            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    335        }
    336
    337        FUNCTION_PARSERS = {
    338            **parser.Parser.FUNCTION_PARSERS,
    339            "CHAR": lambda self: self.expression(
    340                exp.Chr,
    341                expressions=self._parse_csv(self._parse_assignment),
    342                charset=self._match(TokenType.USING) and self._parse_var(),
    343            ),
    344            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    345            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    346            "VALUES": lambda self: self.expression(
    347                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    348            ),
    349            "JSON_VALUE": lambda self: self._parse_json_value(),
    350        }
    351
    352        STATEMENT_PARSERS = {
    353            **parser.Parser.STATEMENT_PARSERS,
    354            TokenType.SHOW: lambda self: self._parse_show(),
    355        }
    356
    357        SHOW_PARSERS = {
    358            "BINARY LOGS": _show_parser("BINARY LOGS"),
    359            "MASTER LOGS": _show_parser("BINARY LOGS"),
    360            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    361            "CHARACTER SET": _show_parser("CHARACTER SET"),
    362            "CHARSET": _show_parser("CHARACTER SET"),
    363            "COLLATION": _show_parser("COLLATION"),
    364            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    365            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    366            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    367            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    368            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    369            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    370            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    371            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    372            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    373            "DATABASES": _show_parser("DATABASES"),
    374            "SCHEMAS": _show_parser("DATABASES"),
    375            "ENGINE": _show_parser("ENGINE", target=True),
    376            "STORAGE ENGINES": _show_parser("ENGINES"),
    377            "ENGINES": _show_parser("ENGINES"),
    378            "ERRORS": _show_parser("ERRORS"),
    379            "EVENTS": _show_parser("EVENTS"),
    380            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    381            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    382            "GRANTS": _show_parser("GRANTS", target="FOR"),
    383            "INDEX": _show_parser("INDEX", target="FROM"),
    384            "MASTER STATUS": _show_parser("MASTER STATUS"),
    385            "OPEN TABLES": _show_parser("OPEN TABLES"),
    386            "PLUGINS": _show_parser("PLUGINS"),
    387            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    388            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    389            "PRIVILEGES": _show_parser("PRIVILEGES"),
    390            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    391            "PROCESSLIST": _show_parser("PROCESSLIST"),
    392            "PROFILE": _show_parser("PROFILE"),
    393            "PROFILES": _show_parser("PROFILES"),
    394            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    395            "REPLICAS": _show_parser("REPLICAS"),
    396            "SLAVE HOSTS": _show_parser("REPLICAS"),
    397            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    398            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    399            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    400            "SESSION STATUS": _show_parser("STATUS"),
    401            "STATUS": _show_parser("STATUS"),
    402            "TABLE STATUS": _show_parser("TABLE STATUS"),
    403            "FULL TABLES": _show_parser("TABLES", full=True),
    404            "TABLES": _show_parser("TABLES"),
    405            "TRIGGERS": _show_parser("TRIGGERS"),
    406            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    407            "SESSION VARIABLES": _show_parser("VARIABLES"),
    408            "VARIABLES": _show_parser("VARIABLES"),
    409            "WARNINGS": _show_parser("WARNINGS"),
    410        }
    411
    412        PROPERTY_PARSERS = {
    413            **parser.Parser.PROPERTY_PARSERS,
    414            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    415        }
    416
    417        SET_PARSERS = {
    418            **parser.Parser.SET_PARSERS,
    419            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    420            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    421            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    422            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    423            "NAMES": lambda self: self._parse_set_item_names(),
    424        }
    425
    426        CONSTRAINT_PARSERS = {
    427            **parser.Parser.CONSTRAINT_PARSERS,
    428            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    429            "INDEX": lambda self: self._parse_index_constraint(),
    430            "KEY": lambda self: self._parse_index_constraint(),
    431            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    432        }
    433
    434        ALTER_PARSERS = {
    435            **parser.Parser.ALTER_PARSERS,
    436            "MODIFY": lambda self: self._parse_alter_table_alter(),
    437        }
    438
    439        SCHEMA_UNNAMED_CONSTRAINTS = {
    440            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    441            "FULLTEXT",
    442            "INDEX",
    443            "KEY",
    444            "SPATIAL",
    445        }
    446
    447        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    448            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    449            "BLOCK": ("IO",),
    450            "CONTEXT": ("SWITCHES",),
    451            "PAGE": ("FAULTS",),
    452        }
    453
    454        TYPE_TOKENS = {
    455            *parser.Parser.TYPE_TOKENS,
    456            TokenType.SET,
    457        }
    458
    459        ENUM_TYPE_TOKENS = {
    460            *parser.Parser.ENUM_TYPE_TOKENS,
    461            TokenType.SET,
    462        }
    463
    464        # SELECT [ ALL | DISTINCT | DISTINCTROW ] [ <OPERATION_MODIFIERS> ]
    465        OPERATION_MODIFIERS = {
    466            "HIGH_PRIORITY",
    467            "STRAIGHT_JOIN",
    468            "SQL_SMALL_RESULT",
    469            "SQL_BIG_RESULT",
    470            "SQL_BUFFER_RESULT",
    471            "SQL_NO_CACHE",
    472            "SQL_CALC_FOUND_ROWS",
    473        }
    474
    475        LOG_DEFAULTS_TO_LN = True
    476        STRING_ALIASES = True
    477        VALUES_FOLLOWED_BY_PAREN = False
    478        SUPPORTS_PARTITION_SELECTION = True
    479
    480        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    481            this = self._parse_id_var()
    482            if not self._match(TokenType.L_PAREN):
    483                return this
    484
    485            expression = self._parse_number()
    486            self._match_r_paren()
    487            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    488
    489        def _parse_index_constraint(
    490            self, kind: t.Optional[str] = None
    491        ) -> exp.IndexColumnConstraint:
    492            if kind:
    493                self._match_texts(("INDEX", "KEY"))
    494
    495            this = self._parse_id_var(any_token=False)
    496            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    497            expressions = self._parse_wrapped_csv(self._parse_ordered)
    498
    499            options = []
    500            while True:
    501                if self._match_text_seq("KEY_BLOCK_SIZE"):
    502                    self._match(TokenType.EQ)
    503                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    504                elif self._match(TokenType.USING):
    505                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    506                elif self._match_text_seq("WITH", "PARSER"):
    507                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    508                elif self._match(TokenType.COMMENT):
    509                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    510                elif self._match_text_seq("VISIBLE"):
    511                    opt = exp.IndexConstraintOption(visible=True)
    512                elif self._match_text_seq("INVISIBLE"):
    513                    opt = exp.IndexConstraintOption(visible=False)
    514                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    515                    self._match(TokenType.EQ)
    516                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    517                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    518                    self._match(TokenType.EQ)
    519                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    520                else:
    521                    opt = None
    522
    523                if not opt:
    524                    break
    525
    526                options.append(opt)
    527
    528            return self.expression(
    529                exp.IndexColumnConstraint,
    530                this=this,
    531                expressions=expressions,
    532                kind=kind,
    533                index_type=index_type,
    534                options=options,
    535            )
    536
    537        def _parse_show_mysql(
    538            self,
    539            this: str,
    540            target: bool | str = False,
    541            full: t.Optional[bool] = None,
    542            global_: t.Optional[bool] = None,
    543        ) -> exp.Show:
    544            if target:
    545                if isinstance(target, str):
    546                    self._match_text_seq(target)
    547                target_id = self._parse_id_var()
    548            else:
    549                target_id = None
    550
    551            log = self._parse_string() if self._match_text_seq("IN") else None
    552
    553            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    554                position = self._parse_number() if self._match_text_seq("FROM") else None
    555                db = None
    556            else:
    557                position = None
    558                db = None
    559
    560                if self._match(TokenType.FROM):
    561                    db = self._parse_id_var()
    562                elif self._match(TokenType.DOT):
    563                    db = target_id
    564                    target_id = self._parse_id_var()
    565
    566            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    567
    568            like = self._parse_string() if self._match_text_seq("LIKE") else None
    569            where = self._parse_where()
    570
    571            if this == "PROFILE":
    572                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    573                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    574                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    575                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    576            else:
    577                types, query = None, None
    578                offset, limit = self._parse_oldstyle_limit()
    579
    580            mutex = True if self._match_text_seq("MUTEX") else None
    581            mutex = False if self._match_text_seq("STATUS") else mutex
    582
    583            return self.expression(
    584                exp.Show,
    585                this=this,
    586                target=target_id,
    587                full=full,
    588                log=log,
    589                position=position,
    590                db=db,
    591                channel=channel,
    592                like=like,
    593                where=where,
    594                types=types,
    595                query=query,
    596                offset=offset,
    597                limit=limit,
    598                mutex=mutex,
    599                **{"global": global_},  # type: ignore
    600            )
    601
    602        def _parse_oldstyle_limit(
    603            self,
    604        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    605            limit = None
    606            offset = None
    607            if self._match_text_seq("LIMIT"):
    608                parts = self._parse_csv(self._parse_number)
    609                if len(parts) == 1:
    610                    limit = parts[0]
    611                elif len(parts) == 2:
    612                    limit = parts[1]
    613                    offset = parts[0]
    614
    615            return offset, limit
    616
    617        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    618            this = self._parse_string() or self._parse_unquoted_field()
    619            return self.expression(exp.SetItem, this=this, kind=kind)
    620
    621        def _parse_set_item_names(self) -> exp.Expression:
    622            charset = self._parse_string() or self._parse_unquoted_field()
    623            if self._match_text_seq("COLLATE"):
    624                collate = self._parse_string() or self._parse_unquoted_field()
    625            else:
    626                collate = None
    627
    628            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    629
    630        def _parse_type(
    631            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    632        ) -> t.Optional[exp.Expression]:
    633            # mysql binary is special and can work anywhere, even in order by operations
    634            # it operates like a no paren func
    635            if self._match(TokenType.BINARY, advance=False):
    636                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    637
    638                if isinstance(data_type, exp.DataType):
    639                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    640
    641            return super()._parse_type(
    642                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    643            )
    644
    645        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    646            def concat_exprs(
    647                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    648            ) -> exp.Expression:
    649                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    650                    concat_exprs = [
    651                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    652                    ]
    653                    node.set("expressions", concat_exprs)
    654                    return node
    655                if len(exprs) == 1:
    656                    return exprs[0]
    657                return self.expression(exp.Concat, expressions=args, safe=True)
    658
    659            args = self._parse_csv(self._parse_lambda)
    660
    661            if args:
    662                order = args[-1] if isinstance(args[-1], exp.Order) else None
    663
    664                if order:
    665                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    666                    # remove 'expr' from exp.Order and add it back to args
    667                    args[-1] = order.this
    668                    order.set("this", concat_exprs(order.this, args))
    669
    670                this = order or concat_exprs(args[0], args)
    671            else:
    672                this = None
    673
    674            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    675
    676            return self.expression(exp.GroupConcat, this=this, separator=separator)
    677
    678        def _parse_json_value(self) -> exp.JSONValue:
    679            this = self._parse_bitwise()
    680            self._match(TokenType.COMMA)
    681            path = self._parse_bitwise()
    682
    683            returning = self._match(TokenType.RETURNING) and self._parse_type()
    684
    685            return self.expression(
    686                exp.JSONValue,
    687                this=this,
    688                path=self.dialect.to_json_path(path),
    689                returning=returning,
    690                on_condition=self._parse_on_condition(),
    691            )

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.VARCHAR: 'VARCHAR'>, <TokenType.MERGE: 'MERGE'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.GLOB: 'GLOB'>, <TokenType.MAP: 'MAP'>, <TokenType.DATE: 'DATE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.IPV4: 'IPV4'>, <TokenType.POINT: 'POINT'>, <TokenType.UNION: 'UNION'>, <TokenType.NAME: 'NAME'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.INSERT: 'INSERT'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.CHAR: 'CHAR'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.INT128: 'INT128'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.NULL: 'NULL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.INT256: 'INT256'>, <TokenType.BIT: 'BIT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.XML: 'XML'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UUID: 'UUID'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INT: 'INT'>, <TokenType.UINT: 'UINT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.ALL: 'ALL'>, <TokenType.LEFT: 'LEFT'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.RING: 'RING'>, <TokenType.JSON: 'JSON'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.ROW: 'ROW'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.VALUES: 'VALUES'>, <TokenType.VAR: 'VAR'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.TIME: 'TIME'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.INDEX: 'INDEX'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.LIST: 'LIST'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ANY: 'ANY'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.FIRST: 'FIRST'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INET: 'INET'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.SOME: 'SOME'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.IPV6: 'IPV6'>, <TokenType.XOR: 'XOR'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.YEAR: 'YEAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.ENUM: 'ENUM'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.UINT256: 'UINT256'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.LIKE: 'LIKE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>}
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.VARCHAR: 'VARCHAR'>, <TokenType.MERGE: 'MERGE'>, <TokenType.IS: 'IS'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.MAP: 'MAP'>, <TokenType.ANTI: 'ANTI'>, <TokenType.SOURCE: 'SOURCE'>, <TokenType.DATE: 'DATE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.VIEW: 'VIEW'>, <TokenType.IPV4: 'IPV4'>, <TokenType.POINT: 'POINT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.NAME: 'NAME'>, <TokenType.TAG: 'TAG'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.ASC: 'ASC'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.FALSE: 'FALSE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.INT128: 'INT128'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.CACHE: 'CACHE'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.NULL: 'NULL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TOP: 'TOP'>, <TokenType.INT256: 'INT256'>, <TokenType.BIT: 'BIT'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.SINK: 'SINK'>, <TokenType.CASE: 'CASE'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.XML: 'XML'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.DIV: 'DIV'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.SUPER: 'SUPER'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UUID: 'UUID'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.INT: 'INT'>, <TokenType.UINT: 'UINT'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.ALL: 'ALL'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.CUBE: 'CUBE'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SET: 'SET'>, <TokenType.RING: 'RING'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.JSON: 'JSON'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.ROW: 'ROW'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.DESC: 'DESC'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.VAR: 'VAR'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.NEXT: 'NEXT'>, <TokenType.TIME: 'TIME'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.INDEX: 'INDEX'>, <TokenType.SHOW: 'SHOW'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.LIST: 'LIST'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.TRUE: 'TRUE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.ANY: 'ANY'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.END: 'END'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.FIRST: 'FIRST'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INET: 'INET'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.DELETE: 'DELETE'>, <TokenType.COPY: 'COPY'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.SOME: 'SOME'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.RENAME: 'RENAME'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.DETACH: 'DETACH'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.IPV6: 'IPV6'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.SEMI: 'SEMI'>, <TokenType.RANGE: 'RANGE'>, <TokenType.ROWS: 'ROWS'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.MODEL: 'MODEL'>, <TokenType.LOAD: 'LOAD'>, <TokenType.ATTACH: 'ATTACH'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.YEAR: 'YEAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.FINAL: 'FINAL'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.KILL: 'KILL'>, <TokenType.UINT256: 'UINT256'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TABLE: 'TABLE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>}
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'>>, '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>, '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_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <function MySQL.Parser.<lambda>>, 'DATE_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME': <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_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_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': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, 'LIST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.List'>>, 'LN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ln'>>, 'LOG': <function build_logarithm>, 'LOGICAL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOL_AND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'BOOLAND_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalAnd'>>, 'LOGICAL_OR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LogicalOr'>>, 'BOOL_OR': <bound method 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'>>, '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'>>, '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>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <function MySQL.Parser.<lambda>>, 'ARRAYAGG': <function Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'INSTR': <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>>, 'TO_HEX': <function build_hex>, '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'>>, 'CONVERT_TZ': <function MySQL.Parser.<lambda>>, 'DATE_FORMAT': <function build_formatted_time.<locals>._builder>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'ISNULL': <function isnull_to_is_null>, 'LOCATE': <function locate_to_strposition>, 'MAKETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MONTHNAME': <function MySQL.Parser.<lambda>>}
FUNCTION_PARSERS = {'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, '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>>, '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.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.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>>, '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>>, '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>>}
SCHEMA_UNNAMED_CONSTRAINTS = {'PRIMARY KEY', 'FULLTEXT', 'EXCLUDE', 'UNIQUE', 'PERIOD', 'WATERMARK', 'CHECK', 'INDEX', 'FOREIGN KEY', 'LIKE', 'KEY', 'SPATIAL'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MULTIPOLYGON: 'MULTIPOLYGON'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.MAP: 'MAP'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.DATE: 'DATE'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.IPV4: 'IPV4'>, <TokenType.POINT: 'POINT'>, <TokenType.UNION: 'UNION'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.NAME: 'NAME'>, <TokenType.SET: 'SET'>, <TokenType.RING: 'RING'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.JSON: 'JSON'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.DECIMAL128: 'DECIMAL128'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.TIME: 'TIME'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.DECIMAL256: 'DECIMAL256'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.DECIMAL32: 'DECIMAL32'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.CHAR: 'CHAR'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.INT128: 'INT128'>, <TokenType.LIST: 'LIST'>, <TokenType.POLYGON: 'POLYGON'>, <TokenType.LINESTRING: 'LINESTRING'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INET: 'INET'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.NULL: 'NULL'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.INT256: 'INT256'>, <TokenType.BIT: 'BIT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.TEXT: 'TEXT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.IPV6: 'IPV6'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.XML: 'XML'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.YEAR: 'YEAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.MULTILINESTRING: 'MULTILINESTRING'>, <TokenType.ENUM: 'ENUM'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.UUID: 'UUID'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.UINT256: 'UINT256'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INT: 'INT'>, <TokenType.UINT: 'UINT'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.UINT128: 'UINT128'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.DECIMAL64: 'DECIMAL64'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>}
ENUM_TYPE_TOKENS = {<TokenType.SET: 'SET'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.ENUM: 'ENUM'>, <TokenType.ENUM8: 'ENUM8'>}
OPERATION_MODIFIERS = {'SQL_BUFFER_RESULT', 'SQL_BIG_RESULT', 'SQL_SMALL_RESULT', 'SQL_CALC_FOUND_ROWS', 'SQL_NO_CACHE', 'HIGH_PRIORITY', 'STRAIGHT_JOIN'}
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
  INTERVAL_VARS
  ALIAS_TOKENS
  ARRAY_CONSTRUCTORS
  COMMENT_TABLE_ALIAS_TOKENS
  UPDATE_ALIAS_TOKENS
  TRIM_TYPES
  ASSIGNMENT
  EQUALITY
  COMPARISON
  BITWISE
  TERM
  FACTOR
  EXPONENT
  TIMES
  TIMESTAMPS
  SET_OPERATIONS
  JOIN_METHODS
  JOIN_SIDES
  JOIN_KINDS
  JOIN_HINTS
  LAMBDAS
  COLUMN_OPERATORS
  EXPRESSION_PARSERS
  UNARY_PARSERS
  STRING_PARSERS
  NUMERIC_PARSERS
  PRIMARY_PARSERS
  PLACEHOLDER_PARSERS
  ALTER_ALTER_PARSERS
  NO_PAREN_FUNCTION_PARSERS
  INVALID_FUNC_NAME_TOKENS
  FUNCTIONS_WITH_ALIASED_ARGS
  KEY_VALUE_DEFINITIONS
  QUERY_MODIFIER_PARSERS
  TYPE_LITERAL_PARSERS
  TYPE_CONVERTERS
  DDL_SELECT_TOKENS
  PRE_VOLATILE_TOKENS
  TRANSACTION_KIND
  TRANSACTION_CHARACTERISTICS
  CONFLICT_ACTIONS
  CREATE_SEQUENCE
  ISOLATED_LOADING_OPTIONS
  USABLES
  CAST_ACTIONS
  SCHEMA_BINDING_OPTIONS
  PROCEDURE_OPTIONS
  EXECUTE_AS_OPTIONS
  KEY_CONSTRAINT_OPTIONS
  INSERT_ALTERNATIVES
  CLONE_KEYWORDS
  HISTORICAL_DATA_PREFIX
  HISTORICAL_DATA_KIND
  OPCLASS_FOLLOW_KEYWORDS
  OPTYPE_FOLLOW_TOKENS
  TABLE_INDEX_HINT_TOKENS
  VIEW_ATTRIBUTES
  WINDOW_ALIAS_TOKENS
  WINDOW_BEFORE_PAREN_TOKENS
  WINDOW_SIDES
  JSON_KEY_VALUE_SEPARATOR_TOKENS
  FETCH_TOKENS
  ADD_CONSTRAINT_TOKENS
  DISTINCT_TOKENS
  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
  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
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  errors
  sql

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

     693    class Generator(generator.Generator):
     694        INTERVAL_ALLOWS_PLURAL_FORM = False
     695        LOCKING_READS_SUPPORTED = True
     696        NULL_ORDERING_SUPPORTED = None
     697        JOIN_HINTS = False
     698        TABLE_HINTS = True
     699        DUPLICATE_KEY_UPDATE_WITH_SET = False
     700        QUERY_HINT_SEP = " "
     701        VALUES_AS_TABLE = False
     702        NVL2_SUPPORTED = False
     703        LAST_DAY_SUPPORTS_DATE_PART = False
     704        JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
     705        JSON_PATH_BRACKETED_KEY_SUPPORTED = False
     706        JSON_KEY_VALUE_PAIR_SEP = ","
     707        SUPPORTS_TO_NUMBER = False
     708        PARSE_JSON_NAME: t.Optional[str] = None
     709        PAD_FILL_PATTERN_IS_REQUIRED = True
     710        WRAP_DERIVED_VALUES = False
     711        VARCHAR_REQUIRES_SIZE = True
     712        SUPPORTS_MEDIAN = False
     713
     714        TRANSFORMS = {
     715            **generator.Generator.TRANSFORMS,
     716            exp.ArrayAgg: rename_func("GROUP_CONCAT"),
     717            exp.CurrentDate: no_paren_current_date_sql,
     718            exp.DateDiff: _remove_ts_or_ds_to_date(
     719                lambda self, e: self.func("DATEDIFF", e.this, e.expression), ("this", "expression")
     720            ),
     721            exp.DateAdd: _remove_ts_or_ds_to_date(date_add_sql("ADD")),
     722            exp.DateStrToDate: datestrtodate_sql,
     723            exp.DateSub: _remove_ts_or_ds_to_date(date_add_sql("SUB")),
     724            exp.DateTrunc: _date_trunc_sql,
     725            exp.Day: _remove_ts_or_ds_to_date(),
     726            exp.DayOfMonth: _remove_ts_or_ds_to_date(rename_func("DAYOFMONTH")),
     727            exp.DayOfWeek: _remove_ts_or_ds_to_date(rename_func("DAYOFWEEK")),
     728            exp.DayOfYear: _remove_ts_or_ds_to_date(rename_func("DAYOFYEAR")),
     729            exp.GroupConcat: lambda self,
     730            e: f"""GROUP_CONCAT({self.sql(e, "this")} SEPARATOR {self.sql(e, "separator") or "','"})""",
     731            exp.ILike: no_ilike_sql,
     732            exp.JSONExtractScalar: arrow_json_extract_sql,
     733            exp.Length: rename_func("CHAR_LENGTH"),
     734            exp.Max: max_or_greatest,
     735            exp.Min: min_or_least,
     736            exp.Month: _remove_ts_or_ds_to_date(),
     737            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     738            exp.NullSafeNEQ: lambda self, e: f"NOT {self.binary(e, '<=>')}",
     739            exp.Pivot: no_pivot_sql,
     740            exp.Select: transforms.preprocess(
     741                [
     742                    transforms.eliminate_distinct_on,
     743                    transforms.eliminate_semi_and_anti_joins,
     744                    transforms.eliminate_qualify,
     745                    transforms.eliminate_full_outer_join,
     746                    transforms.unnest_generate_date_array_using_recursive_cte,
     747                ]
     748            ),
     749            exp.StrPosition: strposition_to_locate_sql,
     750            exp.StrToDate: _str_to_date_sql,
     751            exp.StrToTime: _str_to_date_sql,
     752            exp.Stuff: rename_func("INSERT"),
     753            exp.TableSample: no_tablesample_sql,
     754            exp.TimeFromParts: rename_func("MAKETIME"),
     755            exp.TimestampAdd: date_add_interval_sql("DATE", "ADD"),
     756            exp.TimestampDiff: lambda self, e: self.func(
     757                "TIMESTAMPDIFF", unit_to_var(e), e.expression, e.this
     758            ),
     759            exp.TimestampSub: date_add_interval_sql("DATE", "SUB"),
     760            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
     761            exp.TimeStrToTime: lambda self, e: timestrtotime_sql(
     762                self,
     763                e,
     764                include_precision=not e.args.get("zone"),
     765            ),
     766            exp.TimeToStr: _remove_ts_or_ds_to_date(
     767                lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e))
     768            ),
     769            exp.Trim: trim_sql,
     770            exp.TryCast: no_trycast_sql,
     771            exp.TsOrDsAdd: date_add_sql("ADD"),
     772            exp.TsOrDsDiff: lambda self, e: self.func("DATEDIFF", e.this, e.expression),
     773            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
     774            exp.UnixToTime: _unix_to_time_sql,
     775            exp.Week: _remove_ts_or_ds_to_date(),
     776            exp.WeekOfYear: _remove_ts_or_ds_to_date(rename_func("WEEKOFYEAR")),
     777            exp.Year: _remove_ts_or_ds_to_date(),
     778        }
     779
     780        UNSIGNED_TYPE_MAPPING = {
     781            exp.DataType.Type.UBIGINT: "BIGINT",
     782            exp.DataType.Type.UINT: "INT",
     783            exp.DataType.Type.UMEDIUMINT: "MEDIUMINT",
     784            exp.DataType.Type.USMALLINT: "SMALLINT",
     785            exp.DataType.Type.UTINYINT: "TINYINT",
     786            exp.DataType.Type.UDECIMAL: "DECIMAL",
     787        }
     788
     789        TIMESTAMP_TYPE_MAPPING = {
     790            exp.DataType.Type.TIMESTAMP: "DATETIME",
     791            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
     792            exp.DataType.Type.TIMESTAMPLTZ: "TIMESTAMP",
     793        }
     794
     795        TYPE_MAPPING = {
     796            **generator.Generator.TYPE_MAPPING,
     797            **UNSIGNED_TYPE_MAPPING,
     798            **TIMESTAMP_TYPE_MAPPING,
     799        }
     800
     801        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
     802        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
     803        TYPE_MAPPING.pop(exp.DataType.Type.TINYTEXT)
     804        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
     805        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
     806        TYPE_MAPPING.pop(exp.DataType.Type.TINYBLOB)
     807
     808        PROPERTIES_LOCATION = {
     809            **generator.Generator.PROPERTIES_LOCATION,
     810            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
     811            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
     812        }
     813
     814        LIMIT_FETCH = "LIMIT"
     815
     816        LIMIT_ONLY_LITERALS = True
     817
     818        CHAR_CAST_MAPPING = dict.fromkeys(
     819            (
     820                exp.DataType.Type.LONGTEXT,
     821                exp.DataType.Type.LONGBLOB,
     822                exp.DataType.Type.MEDIUMBLOB,
     823                exp.DataType.Type.MEDIUMTEXT,
     824                exp.DataType.Type.TEXT,
     825                exp.DataType.Type.TINYBLOB,
     826                exp.DataType.Type.TINYTEXT,
     827                exp.DataType.Type.VARCHAR,
     828            ),
     829            "CHAR",
     830        )
     831        SIGNED_CAST_MAPPING = dict.fromkeys(
     832            (
     833                exp.DataType.Type.BIGINT,
     834                exp.DataType.Type.BOOLEAN,
     835                exp.DataType.Type.INT,
     836                exp.DataType.Type.SMALLINT,
     837                exp.DataType.Type.TINYINT,
     838                exp.DataType.Type.MEDIUMINT,
     839            ),
     840            "SIGNED",
     841        )
     842
     843        # MySQL doesn't support many datatypes in cast.
     844        # https://dev.mysql.com/doc/refman/8.0/en/cast-functions.html#function_cast
     845        CAST_MAPPING = {
     846            **CHAR_CAST_MAPPING,
     847            **SIGNED_CAST_MAPPING,
     848            exp.DataType.Type.UBIGINT: "UNSIGNED",
     849        }
     850
     851        TIMESTAMP_FUNC_TYPES = {
     852            exp.DataType.Type.TIMESTAMPTZ,
     853            exp.DataType.Type.TIMESTAMPLTZ,
     854        }
     855
     856        # https://dev.mysql.com/doc/refman/8.0/en/keywords.html
     857        RESERVED_KEYWORDS = {
     858            "accessible",
     859            "add",
     860            "all",
     861            "alter",
     862            "analyze",
     863            "and",
     864            "as",
     865            "asc",
     866            "asensitive",
     867            "before",
     868            "between",
     869            "bigint",
     870            "binary",
     871            "blob",
     872            "both",
     873            "by",
     874            "call",
     875            "cascade",
     876            "case",
     877            "change",
     878            "char",
     879            "character",
     880            "check",
     881            "collate",
     882            "column",
     883            "condition",
     884            "constraint",
     885            "continue",
     886            "convert",
     887            "create",
     888            "cross",
     889            "cube",
     890            "cume_dist",
     891            "current_date",
     892            "current_time",
     893            "current_timestamp",
     894            "current_user",
     895            "cursor",
     896            "database",
     897            "databases",
     898            "day_hour",
     899            "day_microsecond",
     900            "day_minute",
     901            "day_second",
     902            "dec",
     903            "decimal",
     904            "declare",
     905            "default",
     906            "delayed",
     907            "delete",
     908            "dense_rank",
     909            "desc",
     910            "describe",
     911            "deterministic",
     912            "distinct",
     913            "distinctrow",
     914            "div",
     915            "double",
     916            "drop",
     917            "dual",
     918            "each",
     919            "else",
     920            "elseif",
     921            "empty",
     922            "enclosed",
     923            "escaped",
     924            "except",
     925            "exists",
     926            "exit",
     927            "explain",
     928            "false",
     929            "fetch",
     930            "first_value",
     931            "float",
     932            "float4",
     933            "float8",
     934            "for",
     935            "force",
     936            "foreign",
     937            "from",
     938            "fulltext",
     939            "function",
     940            "generated",
     941            "get",
     942            "grant",
     943            "group",
     944            "grouping",
     945            "groups",
     946            "having",
     947            "high_priority",
     948            "hour_microsecond",
     949            "hour_minute",
     950            "hour_second",
     951            "if",
     952            "ignore",
     953            "in",
     954            "index",
     955            "infile",
     956            "inner",
     957            "inout",
     958            "insensitive",
     959            "insert",
     960            "int",
     961            "int1",
     962            "int2",
     963            "int3",
     964            "int4",
     965            "int8",
     966            "integer",
     967            "intersect",
     968            "interval",
     969            "into",
     970            "io_after_gtids",
     971            "io_before_gtids",
     972            "is",
     973            "iterate",
     974            "join",
     975            "json_table",
     976            "key",
     977            "keys",
     978            "kill",
     979            "lag",
     980            "last_value",
     981            "lateral",
     982            "lead",
     983            "leading",
     984            "leave",
     985            "left",
     986            "like",
     987            "limit",
     988            "linear",
     989            "lines",
     990            "load",
     991            "localtime",
     992            "localtimestamp",
     993            "lock",
     994            "long",
     995            "longblob",
     996            "longtext",
     997            "loop",
     998            "low_priority",
     999            "master_bind",
    1000            "master_ssl_verify_server_cert",
    1001            "match",
    1002            "maxvalue",
    1003            "mediumblob",
    1004            "mediumint",
    1005            "mediumtext",
    1006            "middleint",
    1007            "minute_microsecond",
    1008            "minute_second",
    1009            "mod",
    1010            "modifies",
    1011            "natural",
    1012            "not",
    1013            "no_write_to_binlog",
    1014            "nth_value",
    1015            "ntile",
    1016            "null",
    1017            "numeric",
    1018            "of",
    1019            "on",
    1020            "optimize",
    1021            "optimizer_costs",
    1022            "option",
    1023            "optionally",
    1024            "or",
    1025            "order",
    1026            "out",
    1027            "outer",
    1028            "outfile",
    1029            "over",
    1030            "partition",
    1031            "percent_rank",
    1032            "precision",
    1033            "primary",
    1034            "procedure",
    1035            "purge",
    1036            "range",
    1037            "rank",
    1038            "read",
    1039            "reads",
    1040            "read_write",
    1041            "real",
    1042            "recursive",
    1043            "references",
    1044            "regexp",
    1045            "release",
    1046            "rename",
    1047            "repeat",
    1048            "replace",
    1049            "require",
    1050            "resignal",
    1051            "restrict",
    1052            "return",
    1053            "revoke",
    1054            "right",
    1055            "rlike",
    1056            "row",
    1057            "rows",
    1058            "row_number",
    1059            "schema",
    1060            "schemas",
    1061            "second_microsecond",
    1062            "select",
    1063            "sensitive",
    1064            "separator",
    1065            "set",
    1066            "show",
    1067            "signal",
    1068            "smallint",
    1069            "spatial",
    1070            "specific",
    1071            "sql",
    1072            "sqlexception",
    1073            "sqlstate",
    1074            "sqlwarning",
    1075            "sql_big_result",
    1076            "sql_calc_found_rows",
    1077            "sql_small_result",
    1078            "ssl",
    1079            "starting",
    1080            "stored",
    1081            "straight_join",
    1082            "system",
    1083            "table",
    1084            "terminated",
    1085            "then",
    1086            "tinyblob",
    1087            "tinyint",
    1088            "tinytext",
    1089            "to",
    1090            "trailing",
    1091            "trigger",
    1092            "true",
    1093            "undo",
    1094            "union",
    1095            "unique",
    1096            "unlock",
    1097            "unsigned",
    1098            "update",
    1099            "usage",
    1100            "use",
    1101            "using",
    1102            "utc_date",
    1103            "utc_time",
    1104            "utc_timestamp",
    1105            "values",
    1106            "varbinary",
    1107            "varchar",
    1108            "varcharacter",
    1109            "varying",
    1110            "virtual",
    1111            "when",
    1112            "where",
    1113            "while",
    1114            "window",
    1115            "with",
    1116            "write",
    1117            "xor",
    1118            "year_month",
    1119            "zerofill",
    1120        }
    1121
    1122        def array_sql(self, expression: exp.Array) -> str:
    1123            self.unsupported("Arrays are not supported by MySQL")
    1124            return self.function_fallback_sql(expression)
    1125
    1126        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1127            self.unsupported("Array operations are not supported by MySQL")
    1128            return self.function_fallback_sql(expression)
    1129
    1130        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1131            return self.func("CONCAT", *expression.flatten())
    1132
    1133        def extract_sql(self, expression: exp.Extract) -> str:
    1134            unit = expression.name
    1135            if unit and unit.lower() == "epoch":
    1136                return self.func("UNIX_TIMESTAMP", expression.expression)
    1137
    1138            return super().extract_sql(expression)
    1139
    1140        def datatype_sql(self, expression: exp.DataType) -> str:
    1141            if (
    1142                self.VARCHAR_REQUIRES_SIZE
    1143                and expression.is_type(exp.DataType.Type.VARCHAR)
    1144                and not expression.expressions
    1145            ):
    1146                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1147                return "TEXT"
    1148
    1149            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1150            result = super().datatype_sql(expression)
    1151            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1152                result = f"{result} UNSIGNED"
    1153
    1154            return result
    1155
    1156        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1157            return f"{self.sql(expression, 'this')} MEMBER OF({self.sql(expression, 'expression')})"
    1158
    1159        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1160            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1161                return self.func("TIMESTAMP", expression.this)
    1162
    1163            to = self.CAST_MAPPING.get(expression.to.this)
    1164
    1165            if to:
    1166                expression.to.set("this", to)
    1167            return super().cast_sql(expression)
    1168
    1169        def show_sql(self, expression: exp.Show) -> str:
    1170            this = f" {expression.name}"
    1171            full = " FULL" if expression.args.get("full") else ""
    1172            global_ = " GLOBAL" if expression.args.get("global") else ""
    1173
    1174            target = self.sql(expression, "target")
    1175            target = f" {target}" if target else ""
    1176            if expression.name in ("COLUMNS", "INDEX"):
    1177                target = f" FROM{target}"
    1178            elif expression.name == "GRANTS":
    1179                target = f" FOR{target}"
    1180
    1181            db = self._prefixed_sql("FROM", expression, "db")
    1182
    1183            like = self._prefixed_sql("LIKE", expression, "like")
    1184            where = self.sql(expression, "where")
    1185
    1186            types = self.expressions(expression, key="types")
    1187            types = f" {types}" if types else types
    1188            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1189
    1190            if expression.name == "PROFILE":
    1191                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1192                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1193            else:
    1194                offset = ""
    1195                limit = self._oldstyle_limit_sql(expression)
    1196
    1197            log = self._prefixed_sql("IN", expression, "log")
    1198            position = self._prefixed_sql("FROM", expression, "position")
    1199
    1200            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1201
    1202            if expression.name == "ENGINE":
    1203                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1204            else:
    1205                mutex_or_status = ""
    1206
    1207            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    1208
    1209        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1210            dtype = self.sql(expression, "dtype")
    1211            if not dtype:
    1212                return super().altercolumn_sql(expression)
    1213
    1214            this = self.sql(expression, "this")
    1215            return f"MODIFY COLUMN {this} {dtype}"
    1216
    1217        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    1218            sql = self.sql(expression, arg)
    1219            return f" {prefix} {sql}" if sql else ""
    1220
    1221        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    1222            limit = self.sql(expression, "limit")
    1223            offset = self.sql(expression, "offset")
    1224            if limit:
    1225                limit_offset = f"{offset}, {limit}" if offset else limit
    1226                return f" LIMIT {limit_offset}"
    1227            return ""
    1228
    1229        def chr_sql(self, expression: exp.Chr) -> str:
    1230            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1231            charset = expression.args.get("charset")
    1232            using = f" USING {self.sql(charset)}" if charset else ""
    1233            return f"CHAR({this}{using})"
    1234
    1235        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1236            unit = expression.args.get("unit")
    1237
    1238            # Pick an old-enough date to avoid negative timestamp diffs
    1239            start_ts = "'0000-01-01 00:00:00'"
    1240
    1241            # Source: https://stackoverflow.com/a/32955740
    1242            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1243            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1244            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1245
    1246            return self.sql(dateadd)
    1247
    1248        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1249            from_tz = expression.args.get("source_tz")
    1250            to_tz = expression.args.get("target_tz")
    1251            dt = expression.args.get("timestamp")
    1252
    1253            return self.func("CONVERT_TZ", dt, from_tz, to_tz)
    1254
    1255        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1256            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1257            return self.sql(expression.this)

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.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.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ConnectByRoot'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DynamicProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EmptyProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Except'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.PivotAny'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Tags'>: <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.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.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 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.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrPosition'>: <function strposition_to_locate_sql>, <class 'sqlglot.expressions.StrToDate'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.StrToTime'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.Stuff'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TableSample'>: <function no_tablesample_sql>, <class 'sqlglot.expressions.TimeFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Trim'>: <function trim_sql>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function date_add_sql.<locals>.func>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function _ts_or_ds_to_date_sql>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.Week'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.WeekOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Year'>: <function _remove_ts_or_ds_to_date.<locals>.func>}
UNSIGNED_TYPE_MAPPING = {<Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL'}
TIMESTAMP_TYPE_MAPPING = {<Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AllowedValuesProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BackupProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.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.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.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.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'>}
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 = {'hour_second', 'trigger', 'varcharacter', 'int', 'purge', 'join', 'when', 'grant', 'day_minute', 'linear', 'enclosed', 'ntile', 'accessible', 'limit', 'dual', 'force', 'float', 'zerofill', 'unique', 'by', 'set', 'out', 'system', 'current_timestamp', 'straight_join', 'tinytext', 'cursor', 'utc_time', 'from', 'optimizer_costs', 'specific', 'natural', 'match', 'blob', 'long', 'is', 'convert', 'utc_date', 'localtimestamp', 'year_month', 'load', 'rename', 'intersect', 'add', 'day_hour', 'loop', 'resignal', 'binary', 'deterministic', 'signal', 'hour_minute', 'using', 'window', 'row', 'double', 'current_user', 'case', 'float4', 'revoke', 'sql_small_result', 'create', 'int3', 'cascade', 'starting', 'all', 'and', 'databases', 'require', 'smallint', 'float8', 'primary', 'sql_big_result', 'modifies', 'hour_microsecond', 'outer', 'get', 'where', 'check', 'delayed', 'int8', 'separator', 'sensitive', 'io_before_gtids', 'high_priority', 'left', 'cube', 'current_date', 'real', 'master_ssl_verify_server_cert', 'insensitive', 'numeric', 'cume_dist', 'insert', 'first_value', 'lag', 'lateral', 'sql', 'percent_rank', 'grouping', 'alter', 'foreign', 'undo', 'mediumint', 'elseif', 'lead', 'leave', 'update', 'row_number', 'precision', 'second_microsecond', 'interval', 'database', 'function', 'regexp', 'minute_second', 'varying', 'except', 'dec', 'optionally', 'repeat', 'kill', 'sqlstate', 'mediumblob', 'read', 'as', 'ignore', 'read_write', 'reads', 'minute_microsecond', 'distinct', 'inout', 'null', 'inner', 'day_microsecond', 'return', 'integer', 'into', 'terminated', 'mod', 'else', 'keys', 'character', 'if', 'explain', 'use', 'last_value', 'false', 'call', 'schemas', 'sql_calc_found_rows', 'stored', 'div', 'mediumtext', 'tinyblob', 'int1', 'range', 'current_time', 'infile', 'then', 'drop', 'outfile', 'leading', 'not', 'int4', 'of', 'or', 'middleint', 'asc', 'asensitive', 'empty', 'true', 'lock', 'fetch', 'cross', 'references', 'schema', 'maxvalue', 'group', 'day_second', 'fulltext', 'master_bind', 'order', 'table', 'io_after_gtids', 'on', 'unlock', 'char', 'constraint', 'option', 'release', 'tinyint', 'default', 'declare', 'generated', 'nth_value', 'xor', 'usage', 'sqlexception', 'low_priority', 'optimize', 'utc_timestamp', 'both', 'with', 'before', 'iterate', 'lines', 'key', 'desc', 'column', 'ssl', 'in', 'int2', 'recursive', 'exit', 'sqlwarning', 'decimal', 'escaped', 'json_table', 'bigint', 'between', 'rlike', 'values', 'right', 'while', 'each', 'localtime', 'unsigned', 'distinctrow', 'describe', 'change', 'rank', 'replace', 'exists', 'longblob', 'groups', 'select', 'condition', 'like', 'varchar', 'partition', 'dense_rank', 'rows', 'write', 'spatial', 'union', 'trailing', 'varbinary', 'continue', 'delete', 'no_write_to_binlog', 'virtual', 'index', 'having', 'over', 'show', 'collate', 'longtext', 'to', 'for', 'restrict', 'procedure', 'analyze'}
def array_sql(self, expression: sqlglot.expressions.Array) -> str: View Source

    1122        def array_sql(self, expression: exp.Array) -> str:
    1123            self.unsupported("Arrays are not supported by MySQL")
    1124            return self.function_fallback_sql(expression)

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

    1126        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1127            self.unsupported("Array operations are not supported by MySQL")
    1128            return self.function_fallback_sql(expression)

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

    1130        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1131            return self.func("CONCAT", *expression.flatten())

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

    1133        def extract_sql(self, expression: exp.Extract) -> str:
    1134            unit = expression.name
    1135            if unit and unit.lower() == "epoch":
    1136                return self.func("UNIX_TIMESTAMP", expression.expression)
    1137
    1138            return super().extract_sql(expression)

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

    1140        def datatype_sql(self, expression: exp.DataType) -> str:
    1141            if (
    1142                self.VARCHAR_REQUIRES_SIZE
    1143                and expression.is_type(exp.DataType.Type.VARCHAR)
    1144                and not expression.expressions
    1145            ):
    1146                # `VARCHAR` must always have a size - if it doesn't, we always generate `TEXT`
    1147                return "TEXT"
    1148
    1149            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1150            result = super().datatype_sql(expression)
    1151            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1152                result = f"{result} UNSIGNED"
    1153
    1154            return result

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

    1156        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1157            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

    1159        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1160            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1161                return self.func("TIMESTAMP", expression.this)
    1162
    1163            to = self.CAST_MAPPING.get(expression.to.this)
    1164
    1165            if to:
    1166                expression.to.set("this", to)
    1167            return super().cast_sql(expression)

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

    1169        def show_sql(self, expression: exp.Show) -> str:
    1170            this = f" {expression.name}"
    1171            full = " FULL" if expression.args.get("full") else ""
    1172            global_ = " GLOBAL" if expression.args.get("global") else ""
    1173
    1174            target = self.sql(expression, "target")
    1175            target = f" {target}" if target else ""
    1176            if expression.name in ("COLUMNS", "INDEX"):
    1177                target = f" FROM{target}"
    1178            elif expression.name == "GRANTS":
    1179                target = f" FOR{target}"
    1180
    1181            db = self._prefixed_sql("FROM", expression, "db")
    1182
    1183            like = self._prefixed_sql("LIKE", expression, "like")
    1184            where = self.sql(expression, "where")
    1185
    1186            types = self.expressions(expression, key="types")
    1187            types = f" {types}" if types else types
    1188            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1189
    1190            if expression.name == "PROFILE":
    1191                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1192                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1193            else:
    1194                offset = ""
    1195                limit = self._oldstyle_limit_sql(expression)
    1196
    1197            log = self._prefixed_sql("IN", expression, "log")
    1198            position = self._prefixed_sql("FROM", expression, "position")
    1199
    1200            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1201
    1202            if expression.name == "ENGINE":
    1203                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1204            else:
    1205                mutex_or_status = ""
    1206
    1207            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

    1209        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1210            dtype = self.sql(expression, "dtype")
    1211            if not dtype:
    1212                return super().altercolumn_sql(expression)
    1213
    1214            this = self.sql(expression, "this")
    1215            return f"MODIFY COLUMN {this} {dtype}"

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

    1229        def chr_sql(self, expression: exp.Chr) -> str:
    1230            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1231            charset = expression.args.get("charset")
    1232            using = f" USING {self.sql(charset)}" if charset else ""
    1233            return f"CHAR({this}{using})"

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

    1235        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1236            unit = expression.args.get("unit")
    1237
    1238            # Pick an old-enough date to avoid negative timestamp diffs
    1239            start_ts = "'0000-01-01 00:00:00'"
    1240
    1241            # Source: https://stackoverflow.com/a/32955740
    1242            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1243            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1244            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1245
    1246            return self.sql(dateadd)

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

    1248        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1249            from_tz = expression.args.get("source_tz")
    1250            to_tz = expression.args.get("target_tz")
    1251            dt = expression.args.get("timestamp")
    1252
    1253            return self.func("CONVERT_TZ", dt, from_tz, to_tz)

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

    1255        def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    1256            self.unsupported("AT TIME ZONE is not supported by MySQL")
    1257            return self.sql(expression.this)

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
  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
  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
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  generatedasidentitycolumnconstraint_sql
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  notnullcolumnconstraint_sql
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  createable_sql
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  bytestring_sql
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  datatypeparam_sql
  directory_sql
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  fetch_sql
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  indexparameters_sql
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  introducer_sql
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  jsonkeyvalue_sql
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  atindex_sql
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  add_sql
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  xor_sql
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  bitwisenot_sql
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  bitwisexor_sql
  currentdate_sql
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  command_sql
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  transaction_sql
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  alterdiststyle_sql
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  alterrename_sql
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  alterset_sql
  alter_sql
  add_column_sql
  droppartition_sql
  addconstraint_sql
  distinct_sql
  ignorenulls_sql
  respectnulls_sql
  havingmax_sql
  intdiv_sql
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  overlaps_sql
  distance_sql
  dot_sql
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  escape_sql
  glob_sql
  gt_sql
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  is_sql
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  similarto_sql
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  mod_sql
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  slice_sql
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  joinhint_sql
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  tochar_sql
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  dictproperty_sql
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  duplicatekeyproperty_sql
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  anyvalue_sql
  querytransform_sql
  indexconstraintoption_sql
  checkcolumnconstraint_sql
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  nvl2_sql
  comprehension_sql
  columnprefix_sql
  opclass_sql
  predict_sql
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  refresh_sql
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  tsordstotime_sql
  tsordstotimestamp_sql
  tsordstodatetime_sql
  tsordstodate_sql
  unixdate_sql
  lastday_sql
  dateadd_sql
  arrayany_sql
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  truncatetable_sql
  convert_sql
  copyparameter_sql
  credentials_sql
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  semicolon_sql
  datadeletionproperty_sql
  maskingpolicycolumnconstraint_sql
  gapfill_sql
  scope_resolution
  scoperesolution_sql
  parsejson_sql
  rand_sql
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  pad_sql
  summarize_sql
  explodinggenerateseries_sql
  arrayconcat_sql
  json_sql
  jsonvalue_sql
  conditionalinsert_sql
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  jsonexists_sql
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  attach_sql
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  attachoption_sql
  featuresattime_sql
  watermarkcolumnconstraint_sql
  encodeproperty_sql
  includeproperty_sql