sqlglot.dialects.mysql API documentation

Edit on GitHub

# sqlglot.dialects.mysql

View Source

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

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

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

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

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

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
  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
  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

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

QUOTES = ["'", '"']
COMMENTS = ['--', '#', ('/*', '*/')]
IDENTIFIERS = ['`']
STRING_ESCAPES = ["'", '"', '\\']
BIT_STRINGS = [("b'", "'"), ("B'", "'"), ('0b', '')]
HEX_STRINGS = [("x'", "'"), ("X'", "'"), ('0x', '')]
KEYWORDS = {'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, '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'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, 'VECTOR': <TokenType.VECTOR: 'VECTOR'>, 'STRUCT': <TokenType.STRUCT: 'STRUCT'>, 'SEQUENCE': <TokenType.SEQUENCE: 'SEQUENCE'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'EXPLAIN': <TokenType.COMMAND: 'COMMAND'>, 'GRANT': <TokenType.COMMAND: 'COMMAND'>, 'OPTIMIZE': <TokenType.COMMAND: 'COMMAND'>, 'PREPARE': <TokenType.COMMAND: 'COMMAND'>, 'VACUUM': <TokenType.COMMAND: 'COMMAND'>, 'USER-DEFINED': <TokenType.USERDEFINED: 'USERDEFINED'>, 'FOR VERSION': <TokenType.VERSION_SNAPSHOT: 'VERSION_SNAPSHOT'>, 'FOR TIMESTAMP': <TokenType.TIMESTAMP_SNAPSHOT: 'TIMESTAMP_SNAPSHOT'>, 'CHARSET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'FORCE': <TokenType.FORCE: 'FORCE'>, 'IGNORE': <TokenType.IGNORE: 'IGNORE'>, 'KEY': <TokenType.KEY: 'KEY'>, 'LOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'MEMBER OF': <TokenType.MEMBER_OF: 'MEMBER_OF'>, 'SEPARATOR': <TokenType.SEPARATOR: 'SEPARATOR'>, 'START': <TokenType.BEGIN: 'BEGIN'>, 'SIGNED': <TokenType.BIGINT: 'BIGINT'>, 'SIGNED INTEGER': <TokenType.BIGINT: 'BIGINT'>, 'UNLOCK TABLES': <TokenType.COMMAND: 'COMMAND'>, 'UNSIGNED': <TokenType.UBIGINT: 'UBIGINT'>, 'UNSIGNED INTEGER': <TokenType.UBIGINT: 'UBIGINT'>, 'YEAR': <TokenType.YEAR: 'YEAR'>, '_ARMSCII8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_ASCII': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BIG5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_BINARY': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1250': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1251': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1256': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP1257': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP850': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP852': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP866': <TokenType.INTRODUCER: 'INTRODUCER'>, '_CP932': <TokenType.INTRODUCER: 'INTRODUCER'>, '_DEC8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCJPMS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_EUCKR': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB18030': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GB2312': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GBK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GEOSTD8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_GREEK': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HEBREW': <TokenType.INTRODUCER: 'INTRODUCER'>, '_HP8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KEYBCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8R': <TokenType.INTRODUCER: 'INTRODUCER'>, '_KOI8U': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN1': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN5': <TokenType.INTRODUCER: 'INTRODUCER'>, '_LATIN7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACCE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_MACROMAN': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_SWE7': <TokenType.INTRODUCER: 'INTRODUCER'>, '_TIS620': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UCS2': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UJIS': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF16LE': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF32': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB3': <TokenType.INTRODUCER: 'INTRODUCER'>, '_UTF8MB4': <TokenType.INTRODUCER: 'INTRODUCER'>, '@@': <TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>}
COMMANDS = {<TokenType.FETCH: 'FETCH'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.RENAME: 'RENAME'>}

##### Inherited Members

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

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

    272    class Parser(parser.Parser):
    273        FUNC_TOKENS = {
    274            *parser.Parser.FUNC_TOKENS,
    275            TokenType.DATABASE,
    276            TokenType.SCHEMA,
    277            TokenType.VALUES,
    278        }
    279
    280        CONJUNCTION = {
    281            **parser.Parser.CONJUNCTION,
    282            TokenType.DAMP: exp.And,
    283            TokenType.XOR: exp.Xor,
    284        }
    285
    286        DISJUNCTION = {
    287            **parser.Parser.DISJUNCTION,
    288            TokenType.DPIPE: exp.Or,
    289        }
    290
    291        TABLE_ALIAS_TOKENS = (
    292            parser.Parser.TABLE_ALIAS_TOKENS - parser.Parser.TABLE_INDEX_HINT_TOKENS
    293        )
    294
    295        RANGE_PARSERS = {
    296            **parser.Parser.RANGE_PARSERS,
    297            TokenType.MEMBER_OF: lambda self, this: self.expression(
    298                exp.JSONArrayContains,
    299                this=this,
    300                expression=self._parse_wrapped(self._parse_expression),
    301            ),
    302        }
    303
    304        FUNCTIONS = {
    305            **parser.Parser.FUNCTIONS,
    306            "CONVERT_TZ": lambda args: exp.ConvertTimezone(
    307                source_tz=seq_get(args, 1), target_tz=seq_get(args, 2), timestamp=seq_get(args, 0)
    308            ),
    309            "DATE": lambda args: exp.TsOrDsToDate(this=seq_get(args, 0)),
    310            "DATE_ADD": build_date_delta_with_interval(exp.DateAdd),
    311            "DATE_FORMAT": build_formatted_time(exp.TimeToStr, "mysql"),
    312            "DATE_SUB": build_date_delta_with_interval(exp.DateSub),
    313            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    314            "DAYOFMONTH": lambda args: exp.DayOfMonth(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    315            "DAYOFWEEK": lambda args: exp.DayOfWeek(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    316            "DAYOFYEAR": lambda args: exp.DayOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    317            "INSTR": lambda args: exp.StrPosition(substr=seq_get(args, 1), this=seq_get(args, 0)),
    318            "FROM_UNIXTIME": build_formatted_time(exp.UnixToTime, "mysql"),
    319            "ISNULL": isnull_to_is_null,
    320            "LOCATE": locate_to_strposition,
    321            "MAKETIME": exp.TimeFromParts.from_arg_list,
    322            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    323            "MONTHNAME": lambda args: exp.TimeToStr(
    324                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    325                format=exp.Literal.string("%B"),
    326            ),
    327            "STR_TO_DATE": _str_to_date,
    328            "TIMESTAMPDIFF": build_date_delta(exp.TimestampDiff),
    329            "TO_DAYS": lambda args: exp.paren(
    330                exp.DateDiff(
    331                    this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    332                    expression=exp.TsOrDsToDate(this=exp.Literal.string("0000-01-01")),
    333                    unit=exp.var("DAY"),
    334                )
    335                + 1
    336            ),
    337            "WEEK": lambda args: exp.Week(
    338                this=exp.TsOrDsToDate(this=seq_get(args, 0)), mode=seq_get(args, 1)
    339            ),
    340            "WEEKOFYEAR": lambda args: exp.WeekOfYear(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    341            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    342        }
    343
    344        FUNCTION_PARSERS = {
    345            **parser.Parser.FUNCTION_PARSERS,
    346            "CHAR": lambda self: self._parse_chr(),
    347            "GROUP_CONCAT": lambda self: self._parse_group_concat(),
    348            # https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html#function_values
    349            "VALUES": lambda self: self.expression(
    350                exp.Anonymous, this="VALUES", expressions=[self._parse_id_var()]
    351            ),
    352        }
    353
    354        STATEMENT_PARSERS = {
    355            **parser.Parser.STATEMENT_PARSERS,
    356            TokenType.SHOW: lambda self: self._parse_show(),
    357        }
    358
    359        SHOW_PARSERS = {
    360            "BINARY LOGS": _show_parser("BINARY LOGS"),
    361            "MASTER LOGS": _show_parser("BINARY LOGS"),
    362            "BINLOG EVENTS": _show_parser("BINLOG EVENTS"),
    363            "CHARACTER SET": _show_parser("CHARACTER SET"),
    364            "CHARSET": _show_parser("CHARACTER SET"),
    365            "COLLATION": _show_parser("COLLATION"),
    366            "FULL COLUMNS": _show_parser("COLUMNS", target="FROM", full=True),
    367            "COLUMNS": _show_parser("COLUMNS", target="FROM"),
    368            "CREATE DATABASE": _show_parser("CREATE DATABASE", target=True),
    369            "CREATE EVENT": _show_parser("CREATE EVENT", target=True),
    370            "CREATE FUNCTION": _show_parser("CREATE FUNCTION", target=True),
    371            "CREATE PROCEDURE": _show_parser("CREATE PROCEDURE", target=True),
    372            "CREATE TABLE": _show_parser("CREATE TABLE", target=True),
    373            "CREATE TRIGGER": _show_parser("CREATE TRIGGER", target=True),
    374            "CREATE VIEW": _show_parser("CREATE VIEW", target=True),
    375            "DATABASES": _show_parser("DATABASES"),
    376            "SCHEMAS": _show_parser("DATABASES"),
    377            "ENGINE": _show_parser("ENGINE", target=True),
    378            "STORAGE ENGINES": _show_parser("ENGINES"),
    379            "ENGINES": _show_parser("ENGINES"),
    380            "ERRORS": _show_parser("ERRORS"),
    381            "EVENTS": _show_parser("EVENTS"),
    382            "FUNCTION CODE": _show_parser("FUNCTION CODE", target=True),
    383            "FUNCTION STATUS": _show_parser("FUNCTION STATUS"),
    384            "GRANTS": _show_parser("GRANTS", target="FOR"),
    385            "INDEX": _show_parser("INDEX", target="FROM"),
    386            "MASTER STATUS": _show_parser("MASTER STATUS"),
    387            "OPEN TABLES": _show_parser("OPEN TABLES"),
    388            "PLUGINS": _show_parser("PLUGINS"),
    389            "PROCEDURE CODE": _show_parser("PROCEDURE CODE", target=True),
    390            "PROCEDURE STATUS": _show_parser("PROCEDURE STATUS"),
    391            "PRIVILEGES": _show_parser("PRIVILEGES"),
    392            "FULL PROCESSLIST": _show_parser("PROCESSLIST", full=True),
    393            "PROCESSLIST": _show_parser("PROCESSLIST"),
    394            "PROFILE": _show_parser("PROFILE"),
    395            "PROFILES": _show_parser("PROFILES"),
    396            "RELAYLOG EVENTS": _show_parser("RELAYLOG EVENTS"),
    397            "REPLICAS": _show_parser("REPLICAS"),
    398            "SLAVE HOSTS": _show_parser("REPLICAS"),
    399            "REPLICA STATUS": _show_parser("REPLICA STATUS"),
    400            "SLAVE STATUS": _show_parser("REPLICA STATUS"),
    401            "GLOBAL STATUS": _show_parser("STATUS", global_=True),
    402            "SESSION STATUS": _show_parser("STATUS"),
    403            "STATUS": _show_parser("STATUS"),
    404            "TABLE STATUS": _show_parser("TABLE STATUS"),
    405            "FULL TABLES": _show_parser("TABLES", full=True),
    406            "TABLES": _show_parser("TABLES"),
    407            "TRIGGERS": _show_parser("TRIGGERS"),
    408            "GLOBAL VARIABLES": _show_parser("VARIABLES", global_=True),
    409            "SESSION VARIABLES": _show_parser("VARIABLES"),
    410            "VARIABLES": _show_parser("VARIABLES"),
    411            "WARNINGS": _show_parser("WARNINGS"),
    412        }
    413
    414        PROPERTY_PARSERS = {
    415            **parser.Parser.PROPERTY_PARSERS,
    416            "LOCK": lambda self: self._parse_property_assignment(exp.LockProperty),
    417        }
    418
    419        SET_PARSERS = {
    420            **parser.Parser.SET_PARSERS,
    421            "PERSIST": lambda self: self._parse_set_item_assignment("PERSIST"),
    422            "PERSIST_ONLY": lambda self: self._parse_set_item_assignment("PERSIST_ONLY"),
    423            "CHARACTER SET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    424            "CHARSET": lambda self: self._parse_set_item_charset("CHARACTER SET"),
    425            "NAMES": lambda self: self._parse_set_item_names(),
    426        }
    427
    428        CONSTRAINT_PARSERS = {
    429            **parser.Parser.CONSTRAINT_PARSERS,
    430            "FULLTEXT": lambda self: self._parse_index_constraint(kind="FULLTEXT"),
    431            "INDEX": lambda self: self._parse_index_constraint(),
    432            "KEY": lambda self: self._parse_index_constraint(),
    433            "SPATIAL": lambda self: self._parse_index_constraint(kind="SPATIAL"),
    434        }
    435
    436        ALTER_PARSERS = {
    437            **parser.Parser.ALTER_PARSERS,
    438            "MODIFY": lambda self: self._parse_alter_table_alter(),
    439        }
    440
    441        SCHEMA_UNNAMED_CONSTRAINTS = {
    442            *parser.Parser.SCHEMA_UNNAMED_CONSTRAINTS,
    443            "FULLTEXT",
    444            "INDEX",
    445            "KEY",
    446            "SPATIAL",
    447        }
    448
    449        PROFILE_TYPES: parser.OPTIONS_TYPE = {
    450            **dict.fromkeys(("ALL", "CPU", "IPC", "MEMORY", "SOURCE", "SWAPS"), tuple()),
    451            "BLOCK": ("IO",),
    452            "CONTEXT": ("SWITCHES",),
    453            "PAGE": ("FAULTS",),
    454        }
    455
    456        TYPE_TOKENS = {
    457            *parser.Parser.TYPE_TOKENS,
    458            TokenType.SET,
    459        }
    460
    461        ENUM_TYPE_TOKENS = {
    462            *parser.Parser.ENUM_TYPE_TOKENS,
    463            TokenType.SET,
    464        }
    465
    466        LOG_DEFAULTS_TO_LN = True
    467        STRING_ALIASES = True
    468        VALUES_FOLLOWED_BY_PAREN = False
    469        SUPPORTS_PARTITION_SELECTION = True
    470
    471        def _parse_primary_key_part(self) -> t.Optional[exp.Expression]:
    472            this = self._parse_id_var()
    473            if not self._match(TokenType.L_PAREN):
    474                return this
    475
    476            expression = self._parse_number()
    477            self._match_r_paren()
    478            return self.expression(exp.ColumnPrefix, this=this, expression=expression)
    479
    480        def _parse_index_constraint(
    481            self, kind: t.Optional[str] = None
    482        ) -> exp.IndexColumnConstraint:
    483            if kind:
    484                self._match_texts(("INDEX", "KEY"))
    485
    486            this = self._parse_id_var(any_token=False)
    487            index_type = self._match(TokenType.USING) and self._advance_any() and self._prev.text
    488            expressions = self._parse_wrapped_csv(self._parse_ordered)
    489
    490            options = []
    491            while True:
    492                if self._match_text_seq("KEY_BLOCK_SIZE"):
    493                    self._match(TokenType.EQ)
    494                    opt = exp.IndexConstraintOption(key_block_size=self._parse_number())
    495                elif self._match(TokenType.USING):
    496                    opt = exp.IndexConstraintOption(using=self._advance_any() and self._prev.text)
    497                elif self._match_text_seq("WITH", "PARSER"):
    498                    opt = exp.IndexConstraintOption(parser=self._parse_var(any_token=True))
    499                elif self._match(TokenType.COMMENT):
    500                    opt = exp.IndexConstraintOption(comment=self._parse_string())
    501                elif self._match_text_seq("VISIBLE"):
    502                    opt = exp.IndexConstraintOption(visible=True)
    503                elif self._match_text_seq("INVISIBLE"):
    504                    opt = exp.IndexConstraintOption(visible=False)
    505                elif self._match_text_seq("ENGINE_ATTRIBUTE"):
    506                    self._match(TokenType.EQ)
    507                    opt = exp.IndexConstraintOption(engine_attr=self._parse_string())
    508                elif self._match_text_seq("SECONDARY_ENGINE_ATTRIBUTE"):
    509                    self._match(TokenType.EQ)
    510                    opt = exp.IndexConstraintOption(secondary_engine_attr=self._parse_string())
    511                else:
    512                    opt = None
    513
    514                if not opt:
    515                    break
    516
    517                options.append(opt)
    518
    519            return self.expression(
    520                exp.IndexColumnConstraint,
    521                this=this,
    522                expressions=expressions,
    523                kind=kind,
    524                index_type=index_type,
    525                options=options,
    526            )
    527
    528        def _parse_show_mysql(
    529            self,
    530            this: str,
    531            target: bool | str = False,
    532            full: t.Optional[bool] = None,
    533            global_: t.Optional[bool] = None,
    534        ) -> exp.Show:
    535            if target:
    536                if isinstance(target, str):
    537                    self._match_text_seq(target)
    538                target_id = self._parse_id_var()
    539            else:
    540                target_id = None
    541
    542            log = self._parse_string() if self._match_text_seq("IN") else None
    543
    544            if this in ("BINLOG EVENTS", "RELAYLOG EVENTS"):
    545                position = self._parse_number() if self._match_text_seq("FROM") else None
    546                db = None
    547            else:
    548                position = None
    549                db = None
    550
    551                if self._match(TokenType.FROM):
    552                    db = self._parse_id_var()
    553                elif self._match(TokenType.DOT):
    554                    db = target_id
    555                    target_id = self._parse_id_var()
    556
    557            channel = self._parse_id_var() if self._match_text_seq("FOR", "CHANNEL") else None
    558
    559            like = self._parse_string() if self._match_text_seq("LIKE") else None
    560            where = self._parse_where()
    561
    562            if this == "PROFILE":
    563                types = self._parse_csv(lambda: self._parse_var_from_options(self.PROFILE_TYPES))
    564                query = self._parse_number() if self._match_text_seq("FOR", "QUERY") else None
    565                offset = self._parse_number() if self._match_text_seq("OFFSET") else None
    566                limit = self._parse_number() if self._match_text_seq("LIMIT") else None
    567            else:
    568                types, query = None, None
    569                offset, limit = self._parse_oldstyle_limit()
    570
    571            mutex = True if self._match_text_seq("MUTEX") else None
    572            mutex = False if self._match_text_seq("STATUS") else mutex
    573
    574            return self.expression(
    575                exp.Show,
    576                this=this,
    577                target=target_id,
    578                full=full,
    579                log=log,
    580                position=position,
    581                db=db,
    582                channel=channel,
    583                like=like,
    584                where=where,
    585                types=types,
    586                query=query,
    587                offset=offset,
    588                limit=limit,
    589                mutex=mutex,
    590                **{"global": global_},  # type: ignore
    591            )
    592
    593        def _parse_oldstyle_limit(
    594            self,
    595        ) -> t.Tuple[t.Optional[exp.Expression], t.Optional[exp.Expression]]:
    596            limit = None
    597            offset = None
    598            if self._match_text_seq("LIMIT"):
    599                parts = self._parse_csv(self._parse_number)
    600                if len(parts) == 1:
    601                    limit = parts[0]
    602                elif len(parts) == 2:
    603                    limit = parts[1]
    604                    offset = parts[0]
    605
    606            return offset, limit
    607
    608        def _parse_set_item_charset(self, kind: str) -> exp.Expression:
    609            this = self._parse_string() or self._parse_unquoted_field()
    610            return self.expression(exp.SetItem, this=this, kind=kind)
    611
    612        def _parse_set_item_names(self) -> exp.Expression:
    613            charset = self._parse_string() or self._parse_unquoted_field()
    614            if self._match_text_seq("COLLATE"):
    615                collate = self._parse_string() or self._parse_unquoted_field()
    616            else:
    617                collate = None
    618
    619            return self.expression(exp.SetItem, this=charset, collate=collate, kind="NAMES")
    620
    621        def _parse_type(
    622            self, parse_interval: bool = True, fallback_to_identifier: bool = False
    623        ) -> t.Optional[exp.Expression]:
    624            # mysql binary is special and can work anywhere, even in order by operations
    625            # it operates like a no paren func
    626            if self._match(TokenType.BINARY, advance=False):
    627                data_type = self._parse_types(check_func=True, allow_identifiers=False)
    628
    629                if isinstance(data_type, exp.DataType):
    630                    return self.expression(exp.Cast, this=self._parse_column(), to=data_type)
    631
    632            return super()._parse_type(
    633                parse_interval=parse_interval, fallback_to_identifier=fallback_to_identifier
    634            )
    635
    636        def _parse_chr(self) -> t.Optional[exp.Expression]:
    637            expressions = self._parse_csv(self._parse_assignment)
    638            kwargs: t.Dict[str, t.Any] = {"this": seq_get(expressions, 0)}
    639
    640            if len(expressions) > 1:
    641                kwargs["expressions"] = expressions[1:]
    642
    643            if self._match(TokenType.USING):
    644                kwargs["charset"] = self._parse_var()
    645
    646            return self.expression(exp.Chr, **kwargs)
    647
    648        def _parse_group_concat(self) -> t.Optional[exp.Expression]:
    649            def concat_exprs(
    650                node: t.Optional[exp.Expression], exprs: t.List[exp.Expression]
    651            ) -> exp.Expression:
    652                if isinstance(node, exp.Distinct) and len(node.expressions) > 1:
    653                    concat_exprs = [
    654                        self.expression(exp.Concat, expressions=node.expressions, safe=True)
    655                    ]
    656                    node.set("expressions", concat_exprs)
    657                    return node
    658                if len(exprs) == 1:
    659                    return exprs[0]
    660                return self.expression(exp.Concat, expressions=args, safe=True)
    661
    662            args = self._parse_csv(self._parse_lambda)
    663
    664            if args:
    665                order = args[-1] if isinstance(args[-1], exp.Order) else None
    666
    667                if order:
    668                    # Order By is the last (or only) expression in the list and has consumed the 'expr' before it,
    669                    # remove 'expr' from exp.Order and add it back to args
    670                    args[-1] = order.this
    671                    order.set("this", concat_exprs(order.this, args))
    672
    673                this = order or concat_exprs(args[0], args)
    674            else:
    675                this = None
    676
    677            separator = self._parse_field() if self._match(TokenType.SEPARATOR) else None
    678
    679            return self.expression(exp.GroupConcat, this=this, separator=separator)

Parser consumes a list of tokens produced by the Tokenizer and produces a parsed syntax tree.

###### Arguments:

- error_level: The desired error level. Default: ErrorLevel.IMMEDIATE
- error_message_context: The amount of context to capture from a query string when displaying the error message (in number of characters). Default: 100
- max_errors: Maximum number of error messages to include in a raised ParseError. This is only relevant if error_level is ErrorLevel.RAISE. Default: 3

FUNC_TOKENS = {<TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UINT128: 'UINT128'>, <TokenType.NESTED: 'NESTED'>, <TokenType.SOME: 'SOME'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.NAME: 'NAME'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.INET: 'INET'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.FIRST: 'FIRST'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.ANY: 'ANY'>, <TokenType.ALL: 'ALL'>, <TokenType.TABLE: 'TABLE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.LIKE: 'LIKE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.IPV6: 'IPV6'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UINT: 'UINT'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.VALUES: 'VALUES'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.BIT: 'BIT'>, <TokenType.TIME: 'TIME'>, <TokenType.CHAR: 'CHAR'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.INT256: 'INT256'>, <TokenType.INSERT: 'INSERT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.JSONB: 'JSONB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DATE: 'DATE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.VAR: 'VAR'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.XML: 'XML'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.ROW: 'ROW'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MAP: 'MAP'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.LEFT: 'LEFT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BINARY: 'BINARY'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.INT: 'INT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.UUID: 'UUID'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.JSON: 'JSON'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.MONEY: 'MONEY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.GLOB: 'GLOB'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.IPV4: 'IPV4'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.NULL: 'NULL'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.LIST: 'LIST'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.XOR: 'XOR'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.INT128: 'INT128'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>}
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.ROLLUP: 'ROLLUP'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.NESTED: 'NESTED'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.SOME: 'SOME'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.RENAME: 'RENAME'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.NAME: 'NAME'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.IS: 'IS'>, <TokenType.INET: 'INET'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.FIRST: 'FIRST'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.CASE: 'CASE'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.ROWS: 'ROWS'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.ANY: 'ANY'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.ALL: 'ALL'>, <TokenType.TABLE: 'TABLE'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.RANGE: 'RANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.IPV6: 'IPV6'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.SHOW: 'SHOW'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UINT: 'UINT'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.BIT: 'BIT'>, <TokenType.TIME: 'TIME'>, <TokenType.CUBE: 'CUBE'>, <TokenType.CHAR: 'CHAR'>, <TokenType.KILL: 'KILL'>, <TokenType.END: 'END'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.ASC: 'ASC'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.INT256: 'INT256'>, <TokenType.MERGE: 'MERGE'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.JSONB: 'JSONB'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.ANTI: 'ANTI'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.MODEL: 'MODEL'>, <TokenType.DATE: 'DATE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.CACHE: 'CACHE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.COPY: 'COPY'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.VAR: 'VAR'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.XML: 'XML'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TEXT: 'TEXT'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.DATE32: 'DATE32'>, <TokenType.LOAD: 'LOAD'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.DELETE: 'DELETE'>, <TokenType.ROW: 'ROW'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MAP: 'MAP'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.SEMI: 'SEMI'>, <TokenType.TAG: 'TAG'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.UINT256: 'UINT256'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.BINARY: 'BINARY'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.INT: 'INT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.FILTER: 'FILTER'>, <TokenType.SET: 'SET'>, <TokenType.TRUE: 'TRUE'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.UUID: 'UUID'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.JSON: 'JSON'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.MONEY: 'MONEY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.DESC: 'DESC'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.FINAL: 'FINAL'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.IPV4: 'IPV4'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.NEXT: 'NEXT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.VIEW: 'VIEW'>, <TokenType.NULL: 'NULL'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.LIST: 'LIST'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.DIV: 'DIV'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.FALSE: 'FALSE'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.INT128: 'INT128'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.TOP: 'TOP'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.ORDINALITY: 'ORDINALITY'>}
RANGE_PARSERS = {<TokenType.BETWEEN: 'BETWEEN'>: <function Parser.<lambda>>, <TokenType.GLOB: 'GLOB'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.ILIKE: 'ILIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IN: 'IN'>: <function Parser.<lambda>>, <TokenType.IRLIKE: 'IRLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.IS: 'IS'>: <function Parser.<lambda>>, <TokenType.LIKE: 'LIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.OVERLAPS: 'OVERLAPS'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.RLIKE: 'RLIKE'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.SIMILAR_TO: 'SIMILAR_TO'>: <function binary_range_parser.<locals>._parse_binary_range>, <TokenType.FOR: 'FOR'>: <function Parser.<lambda>>, <TokenType.MEMBER_OF: 'MEMBER_OF'>: <function MySQL.Parser.<lambda>>}
FUNCTIONS = {'ABS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Abs'>>, 'ADD_MONTHS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AddMonths'>>, 'ANONYMOUS_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnonymousAggFunc'>>, 'ANY_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.AnyValue'>>, 'APPROX_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_COUNT_DISTINCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxDistinct'>>, 'APPROX_QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxQuantile'>>, 'APPROX_TOP_K': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ApproxTopK'>>, 'ARG_MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARGMAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'MAX_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMax'>>, 'ARG_MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARGMIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'MIN_BY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArgMin'>>, 'ARRAY': <function Parser.<lambda>>, 'ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAgg'>>, 'ARRAY_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAll'>>, 'ARRAY_ANY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayAny'>>, 'ARRAY_CONCAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConcat'>>, 'ARRAY_CONSTRUCT_COMPACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayConstructCompact'>>, 'ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_HAS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContains'>>, 'ARRAY_CONTAINS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'ARRAY_HAS_ALL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayContainsAll'>>, 'FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_FILTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayFilter'>>, 'ARRAY_OVERLAPS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayOverlaps'>>, 'ARRAY_SIZE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySize'>>, 'ARRAY_SORT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySort'>>, 'ARRAY_SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArraySum'>>, 'ARRAY_TO_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_JOIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayToString'>>, 'ARRAY_UNION_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUnionAgg'>>, 'ARRAY_UNIQUE_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ArrayUniqueAgg'>>, 'AVG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Avg'>>, 'CASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Case'>>, 'CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cast'>>, 'CAST_TO_STR_TYPE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CastToStrType'>>, 'CBRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Cbrt'>>, 'CEIL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CEILING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Ceil'>>, 'CHR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Chr'>>, 'COALESCE': <function Parser.<lambda>>, 'IFNULL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'NVL': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Coalesce'>>, 'COLLATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Collate'>>, 'COMBINED_AGG_FUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedAggFunc'>>, 'COMBINED_PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CombinedParameterizedAgg'>>, 'CONCAT': <function Parser.<lambda>>, 'CONCAT_WS': <function Parser.<lambda>>, 'CONNECT_BY_ROOT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ConnectByRoot'>>, 'CONVERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Convert'>>, 'CONVERT_TIMEZONE': <function build_convert_timezone>, 'CORR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Corr'>>, 'COUNT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Count'>>, 'COUNT_IF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COUNTIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CountIf'>>, 'COVAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarPop'>>, 'COVAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CovarSamp'>>, 'CURRENT_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDate'>>, 'CURRENT_DATETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentDatetime'>>, 'CURRENT_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTime'>>, 'CURRENT_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentTimestamp'>>, 'CURRENT_USER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.CurrentUser'>>, 'DATE': <function MySQL.Parser.<lambda>>, 'DATE_ADD': <function build_date_delta_with_interval.<locals>._builder>, 'DATEDIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateDiff'>>, 'DATE_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateFromParts'>>, 'DATE_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateStrToDate'>>, 'DATE_SUB': <function build_date_delta_with_interval.<locals>._builder>, 'DATE_TO_DATE_STR': <function Parser.<lambda>>, 'DATE_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateToDi'>>, 'DATE_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DateTrunc'>>, 'DATETIME': <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>>, 'DAY_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DayOfYear'>>, 'DAYOFYEAR': <function MySQL.Parser.<lambda>>, 'DECODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Decode'>>, 'DI_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.DiToDate'>>, 'ENCODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Encode'>>, 'EXP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Exp'>>, 'EXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Explode'>>, 'EXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ExplodeOuter'>>, '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'>>, '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'>>, 'IS_INF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'ISINF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsInf'>>, 'IS_NAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'ISNAN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.IsNan'>>, 'J_S_O_N_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArray'>>, 'J_S_O_N_ARRAY_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayAgg'>>, 'JSON_ARRAY_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONArrayContains'>>, 'JSONB_CONTAINS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBContains'>>, 'JSONB_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtract'>>, 'JSONB_EXTRACT_SCALAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONBExtractScalar'>>, 'JSON_EXTRACT': <function build_extract_json_with_path.<locals>._builder>, 'JSON_EXTRACT_SCALAR': <function build_extract_json_with_path.<locals>._builder>, 'JSON_FORMAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONFormat'>>, 'J_S_O_N_OBJECT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObject'>>, 'J_S_O_N_OBJECT_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONObjectAgg'>>, 'J_S_O_N_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.JSONTable'>>, 'LAG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lag'>>, 'LAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Last'>>, 'LAST_DAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_DAY_OF_MONTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastDay'>>, 'LAST_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.LastValue'>>, 'LEAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Lead'>>, 'LEAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Least'>>, 'LEFT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Left'>>, 'LENGTH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Length'>>, 'LEVENSHTEIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Levenshtein'>>, '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'>>, 'MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Map'>>, 'MAP_FROM_ENTRIES': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MapFromEntries'>>, 'MATCH_AGAINST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MatchAgainst'>>, 'MAX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Max'>>, 'MIN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Min'>>, 'MONTH': <function MySQL.Parser.<lambda>>, 'MONTHS_BETWEEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.MonthsBetween'>>, 'NEXT_VALUE_FOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NextValueFor'>>, 'NTH_VALUE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NthValue'>>, 'NULLIF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nullif'>>, 'NUMBER_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.NumberToStr'>>, 'NVL2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Nvl2'>>, 'OBJECT_INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ObjectInsert'>>, 'OPEN_J_S_O_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.OpenJSON'>>, 'PAD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pad'>>, 'PARAMETERIZED_AGG': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParameterizedAgg'>>, 'PARSE_JSON': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'JSON_PARSE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ParseJSON'>>, 'PERCENTILE_CONT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileCont'>>, 'PERCENTILE_DISC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PercentileDisc'>>, 'POSEXPLODE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Posexplode'>>, 'POSEXPLODE_OUTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.PosexplodeOuter'>>, 'POWER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'POW': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Pow'>>, 'PREDICT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Predict'>>, 'QUANTILE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quantile'>>, 'QUARTER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Quarter'>>, 'RAND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDOM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Rand'>>, 'RANDN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Randn'>>, 'RANGE_N': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RangeN'>>, 'READ_CSV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ReadCSV'>>, 'REDUCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Reduce'>>, 'REGEXP_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpExtract'>>, 'REGEXP_I_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpILike'>>, 'REGEXP_LIKE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpLike'>>, 'REGEXP_REPLACE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpReplace'>>, 'REGEXP_SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RegexpSplit'>>, 'REPEAT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Repeat'>>, 'RIGHT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Right'>>, 'ROUND': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Round'>>, 'ROW_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.RowNumber'>>, 'SHA': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA1': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA'>>, 'SHA2': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SHA2'>>, 'SAFE_DIVIDE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SafeDivide'>>, 'SIGN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SIGNUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sign'>>, 'SORT_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.SortArray'>>, 'SPLIT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Split'>>, 'SQRT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sqrt'>>, 'STANDARD_HASH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StandardHash'>>, 'STAR_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StarMap'>>, 'STARTS_WITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STARTSWITH': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StartsWith'>>, 'STDDEV': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stddev'>>, '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_TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'SPLIT_BY_STRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StringToArray'>>, 'STRUCT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Struct'>>, 'STRUCT_EXTRACT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.StructExtract'>>, 'STUFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'INSERT': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Stuff'>>, 'SUBSTRING': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Substring'>>, 'SUM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Sum'>>, 'TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Time'>>, 'TIME_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeAdd'>>, 'TIME_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeDiff'>>, 'TIME_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIMEFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'TIME_STR_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToDate'>>, 'TIME_STR_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToTime'>>, 'TIME_STR_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeStrToUnix'>>, 'TIME_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeSub'>>, 'TIME_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToStr'>>, 'TIME_TO_TIME_STR': <function Parser.<lambda>>, 'TIME_TO_UNIX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeToUnix'>>, 'TIME_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeTrunc'>>, 'TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Timestamp'>>, 'TIMESTAMP_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampAdd'>>, 'TIMESTAMPDIFF': <function build_date_delta.<locals>._builder>, 'TIMESTAMP_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampDiff'>>, 'TIMESTAMP_FROM_PARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMPFROMPARTS': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampFromParts'>>, 'TIMESTAMP_SUB': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampSub'>>, 'TIMESTAMP_TRUNC': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimestampTrunc'>>, 'TO_ARRAY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToArray'>>, 'TO_BASE64': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToBase64'>>, 'TO_CHAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToChar'>>, 'TO_DAYS': <function MySQL.Parser.<lambda>>, 'TO_MAP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToMap'>>, 'TO_NUMBER': <bound method Func.from_arg_list of <class 'sqlglot.expressions.ToNumber'>>, 'TRANSFORM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Transform'>>, 'TRIM': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Trim'>>, 'TRY': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Try'>>, 'TRY_CAST': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TryCast'>>, 'TS_OR_DI_TO_DI': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDiToDi'>>, 'TS_OR_DS_ADD': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsAdd'>>, 'TS_OR_DS_DIFF': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsDiff'>>, 'TS_OR_DS_TO_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToDate'>>, 'TS_OR_DS_TO_DATE_STR': <function Parser.<lambda>>, 'TS_OR_DS_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTime'>>, 'TS_OR_DS_TO_TIMESTAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TsOrDsToTimestamp'>>, 'UNHEX': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Unhex'>>, 'UNIX_DATE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixDate'>>, 'UNIX_TO_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToStr'>>, 'UNIX_TO_TIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTime'>>, 'UNIX_TO_TIME_STR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.UnixToTimeStr'>>, 'UNNEST': <function Parser.<lambda>>, 'UPPER': <function build_upper>, 'UCASE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Upper'>>, 'VAR_MAP': <function build_var_map>, 'VARIANCE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VAR_SAMP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Variance'>>, 'VARIANCE_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'VAR_POP': <bound method Func.from_arg_list of <class 'sqlglot.expressions.VariancePop'>>, 'WEEK': <function MySQL.Parser.<lambda>>, 'WEEK_OF_YEAR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.WeekOfYear'>>, 'WEEKOFYEAR': <function MySQL.Parser.<lambda>>, 'WHEN': <bound method Func.from_arg_list of <class 'sqlglot.expressions.When'>>, 'X_M_L_TABLE': <bound method Func.from_arg_list of <class 'sqlglot.expressions.XMLTable'>>, 'XOR': <bound method Func.from_arg_list of <class 'sqlglot.expressions.Xor'>>, 'YEAR': <function MySQL.Parser.<lambda>>, 'GLOB': <function Parser.<lambda>>, 'JSON_EXTRACT_PATH_TEXT': <function build_extract_json_with_path.<locals>._builder>, 'LIKE': <function build_like>, 'LOG2': <function Parser.<lambda>>, 'LOG10': <function Parser.<lambda>>, 'LPAD': <function Parser.<lambda>>, 'LEFTPAD': <function Parser.<lambda>>, 'MOD': <function build_mod>, 'RPAD': <function Parser.<lambda>>, 'RIGHTPAD': <function Parser.<lambda>>, 'SCOPE_RESOLUTION': <function Parser.<lambda>>, 'TO_HEX': <function build_hex>, 'CONVERT_TZ': <function MySQL.Parser.<lambda>>, 'DATE_FORMAT': <function build_formatted_time.<locals>._builder>, 'INSTR': <function MySQL.Parser.<lambda>>, 'FROM_UNIXTIME': <function build_formatted_time.<locals>._builder>, 'ISNULL': <function isnull_to_is_null>, 'LOCATE': <function locate_to_strposition>, 'MAKETIME': <bound method Func.from_arg_list of <class 'sqlglot.expressions.TimeFromParts'>>, 'MONTHNAME': <function MySQL.Parser.<lambda>>}
FUNCTION_PARSERS = {'CAST': <function Parser.<lambda>>, 'CONVERT': <function Parser.<lambda>>, 'DECODE': <function Parser.<lambda>>, 'EXTRACT': <function Parser.<lambda>>, 'GAP_FILL': <function Parser.<lambda>>, 'JSON_OBJECT': <function Parser.<lambda>>, 'JSON_OBJECTAGG': <function Parser.<lambda>>, 'JSON_TABLE': <function Parser.<lambda>>, 'MATCH': <function Parser.<lambda>>, 'OPENJSON': <function Parser.<lambda>>, 'POSITION': <function Parser.<lambda>>, 'PREDICT': <function Parser.<lambda>>, 'SAFE_CAST': <function Parser.<lambda>>, 'STRING_AGG': <function Parser.<lambda>>, 'SUBSTRING': <function Parser.<lambda>>, 'TRIM': <function Parser.<lambda>>, 'TRY_CAST': <function Parser.<lambda>>, 'TRY_CONVERT': <function Parser.<lambda>>, 'CHAR': <function MySQL.Parser.<lambda>>, 'GROUP_CONCAT': <function MySQL.Parser.<lambda>>, 'VALUES': <function MySQL.Parser.<lambda>>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COPY: 'COPY'>: <function Parser.<lambda>>, <TokenType.CREATE: 'CREATE'>: <function Parser.<lambda>>, <TokenType.DELETE: 'DELETE'>: <function Parser.<lambda>>, <TokenType.DESC: 'DESC'>: <function Parser.<lambda>>, <TokenType.DESCRIBE: 'DESCRIBE'>: <function Parser.<lambda>>, <TokenType.DROP: 'DROP'>: <function Parser.<lambda>>, <TokenType.INSERT: 'INSERT'>: <function Parser.<lambda>>, <TokenType.KILL: 'KILL'>: <function Parser.<lambda>>, <TokenType.LOAD: 'LOAD'>: <function Parser.<lambda>>, <TokenType.MERGE: 'MERGE'>: <function Parser.<lambda>>, <TokenType.PIVOT: 'PIVOT'>: <function Parser.<lambda>>, <TokenType.PRAGMA: 'PRAGMA'>: <function Parser.<lambda>>, <TokenType.REFRESH: 'REFRESH'>: <function Parser.<lambda>>, <TokenType.ROLLBACK: 'ROLLBACK'>: <function Parser.<lambda>>, <TokenType.SET: 'SET'>: <function Parser.<lambda>>, <TokenType.TRUNCATE: 'TRUNCATE'>: <function Parser.<lambda>>, <TokenType.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <function Parser.<lambda>>, <TokenType.SEMICOLON: 'SEMICOLON'>: <function Parser.<lambda>>, <TokenType.SHOW: 'SHOW'>: <function MySQL.Parser.<lambda>>}
SHOW_PARSERS = {'BINARY LOGS': <function _show_parser.<locals>._parse>, 'MASTER LOGS': <function _show_parser.<locals>._parse>, 'BINLOG EVENTS': <function _show_parser.<locals>._parse>, 'CHARACTER SET': <function _show_parser.<locals>._parse>, 'CHARSET': <function _show_parser.<locals>._parse>, 'COLLATION': <function _show_parser.<locals>._parse>, 'FULL COLUMNS': <function _show_parser.<locals>._parse>, 'COLUMNS': <function _show_parser.<locals>._parse>, 'CREATE DATABASE': <function _show_parser.<locals>._parse>, 'CREATE EVENT': <function _show_parser.<locals>._parse>, 'CREATE FUNCTION': <function _show_parser.<locals>._parse>, 'CREATE PROCEDURE': <function _show_parser.<locals>._parse>, 'CREATE TABLE': <function _show_parser.<locals>._parse>, 'CREATE TRIGGER': <function _show_parser.<locals>._parse>, 'CREATE VIEW': <function _show_parser.<locals>._parse>, 'DATABASES': <function _show_parser.<locals>._parse>, 'SCHEMAS': <function _show_parser.<locals>._parse>, 'ENGINE': <function _show_parser.<locals>._parse>, 'STORAGE ENGINES': <function _show_parser.<locals>._parse>, 'ENGINES': <function _show_parser.<locals>._parse>, 'ERRORS': <function _show_parser.<locals>._parse>, 'EVENTS': <function _show_parser.<locals>._parse>, 'FUNCTION CODE': <function _show_parser.<locals>._parse>, 'FUNCTION STATUS': <function _show_parser.<locals>._parse>, 'GRANTS': <function _show_parser.<locals>._parse>, 'INDEX': <function _show_parser.<locals>._parse>, 'MASTER STATUS': <function _show_parser.<locals>._parse>, 'OPEN TABLES': <function _show_parser.<locals>._parse>, 'PLUGINS': <function _show_parser.<locals>._parse>, 'PROCEDURE CODE': <function _show_parser.<locals>._parse>, 'PROCEDURE STATUS': <function _show_parser.<locals>._parse>, 'PRIVILEGES': <function _show_parser.<locals>._parse>, 'FULL PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROCESSLIST': <function _show_parser.<locals>._parse>, 'PROFILE': <function _show_parser.<locals>._parse>, 'PROFILES': <function _show_parser.<locals>._parse>, 'RELAYLOG EVENTS': <function _show_parser.<locals>._parse>, 'REPLICAS': <function _show_parser.<locals>._parse>, 'SLAVE HOSTS': <function _show_parser.<locals>._parse>, 'REPLICA STATUS': <function _show_parser.<locals>._parse>, 'SLAVE STATUS': <function _show_parser.<locals>._parse>, 'GLOBAL STATUS': <function _show_parser.<locals>._parse>, 'SESSION STATUS': <function _show_parser.<locals>._parse>, 'STATUS': <function _show_parser.<locals>._parse>, 'TABLE STATUS': <function _show_parser.<locals>._parse>, 'FULL TABLES': <function _show_parser.<locals>._parse>, 'TABLES': <function _show_parser.<locals>._parse>, 'TRIGGERS': <function _show_parser.<locals>._parse>, 'GLOBAL VARIABLES': <function _show_parser.<locals>._parse>, 'SESSION VARIABLES': <function _show_parser.<locals>._parse>, 'VARIABLES': <function _show_parser.<locals>._parse>, 'WARNINGS': <function _show_parser.<locals>._parse>}
PROPERTY_PARSERS = {'ALLOWED_VALUES': <function Parser.<lambda>>, 'ALGORITHM': <function Parser.<lambda>>, 'AUTO': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'BACKUP': <function Parser.<lambda>>, 'BLOCKCOMPRESSION': <function Parser.<lambda>>, 'CHARSET': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECKSUM': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'CONTAINS': <function Parser.<lambda>>, 'COPY': <function Parser.<lambda>>, 'DATABLOCKSIZE': <function Parser.<lambda>>, 'DATA_DELETION': <function Parser.<lambda>>, 'DEFINER': <function Parser.<lambda>>, 'DETERMINISTIC': <function Parser.<lambda>>, 'DYNAMIC': <function Parser.<lambda>>, 'DISTKEY': <function Parser.<lambda>>, 'DISTSTYLE': <function Parser.<lambda>>, '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>>, 'SET': <function Parser.<lambda>>, 'SETTINGS': <function Parser.<lambda>>, 'SHARING': <function Parser.<lambda>>, 'SORTKEY': <function Parser.<lambda>>, 'SOURCE': <function Parser.<lambda>>, 'STABLE': <function Parser.<lambda>>, 'STORED': <function Parser.<lambda>>, 'SYSTEM_VERSIONING': <function Parser.<lambda>>, 'TBLPROPERTIES': <function Parser.<lambda>>, 'TEMP': <function Parser.<lambda>>, 'TEMPORARY': <function Parser.<lambda>>, 'TO': <function Parser.<lambda>>, 'TRANSIENT': <function Parser.<lambda>>, 'TRANSFORM': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'USING': <function Parser.<lambda>>, 'UNLOGGED': <function Parser.<lambda>>, 'VOLATILE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>}
SET_PARSERS = {'GLOBAL': <function Parser.<lambda>>, 'LOCAL': <function Parser.<lambda>>, 'SESSION': <function Parser.<lambda>>, 'TRANSACTION': <function Parser.<lambda>>, 'PERSIST': <function MySQL.Parser.<lambda>>, 'PERSIST_ONLY': <function MySQL.Parser.<lambda>>, 'CHARACTER SET': <function MySQL.Parser.<lambda>>, 'CHARSET': <function MySQL.Parser.<lambda>>, 'NAMES': <function MySQL.Parser.<lambda>>}
CONSTRAINT_PARSERS = {'AUTOINCREMENT': <function Parser.<lambda>>, 'AUTO_INCREMENT': <function Parser.<lambda>>, 'CASESPECIFIC': <function Parser.<lambda>>, 'CHARACTER SET': <function Parser.<lambda>>, 'CHECK': <function Parser.<lambda>>, 'COLLATE': <function Parser.<lambda>>, 'COMMENT': <function Parser.<lambda>>, 'COMPRESS': <function Parser.<lambda>>, 'CLUSTERED': <function Parser.<lambda>>, 'NONCLUSTERED': <function Parser.<lambda>>, 'DEFAULT': <function Parser.<lambda>>, 'ENCODE': <function Parser.<lambda>>, 'EPHEMERAL': <function Parser.<lambda>>, 'EXCLUDE': <function Parser.<lambda>>, 'FOREIGN KEY': <function Parser.<lambda>>, 'FORMAT': <function Parser.<lambda>>, 'GENERATED': <function Parser.<lambda>>, 'IDENTITY': <function Parser.<lambda>>, 'INLINE': <function Parser.<lambda>>, 'LIKE': <function Parser.<lambda>>, 'NOT': <function Parser.<lambda>>, 'NULL': <function Parser.<lambda>>, 'ON': <function Parser.<lambda>>, 'PATH': <function Parser.<lambda>>, 'PERIOD': <function Parser.<lambda>>, 'PRIMARY KEY': <function Parser.<lambda>>, 'REFERENCES': <function Parser.<lambda>>, 'TITLE': <function Parser.<lambda>>, 'TTL': <function Parser.<lambda>>, 'UNIQUE': <function Parser.<lambda>>, 'UPPERCASE': <function Parser.<lambda>>, 'WITH': <function Parser.<lambda>>, 'FULLTEXT': <function MySQL.Parser.<lambda>>, 'INDEX': <function MySQL.Parser.<lambda>>, 'KEY': <function MySQL.Parser.<lambda>>, 'SPATIAL': <function MySQL.Parser.<lambda>>}
ALTER_PARSERS = {'ADD': <function Parser.<lambda>>, 'ALTER': <function Parser.<lambda>>, 'CLUSTER BY': <function Parser.<lambda>>, 'DELETE': <function Parser.<lambda>>, 'DROP': <function Parser.<lambda>>, 'RENAME': <function Parser.<lambda>>, 'SET': <function Parser.<lambda>>, 'AS': <function Parser.<lambda>>, 'MODIFY': <function MySQL.Parser.<lambda>>}
SCHEMA_UNNAMED_CONSTRAINTS = {'UNIQUE', 'EXCLUDE', 'LIKE', 'KEY', 'PRIMARY KEY', 'PERIOD', 'CHECK', 'FULLTEXT', 'SPATIAL', 'FOREIGN KEY', 'INDEX'}
PROFILE_TYPES: Dict[str, Sequence[Union[Sequence[str], str]]] = {'ALL': (), 'CPU': (), 'IPC': (), 'MEMORY': (), 'SOURCE': (), 'SWAPS': (), 'BLOCK': ('IO',), 'CONTEXT': ('SWITCHES',), 'PAGE': ('FAULTS',)}
TYPE_TOKENS = {<TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UINT128: 'UINT128'>, <TokenType.NESTED: 'NESTED'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.XML: 'XML'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TEXT: 'TEXT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.NAME: 'NAME'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.DATE32: 'DATE32'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.VECTOR: 'VECTOR'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MAP: 'MAP'>, <TokenType.INET: 'INET'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.UINT256: 'UINT256'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.YEAR: 'YEAR'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.INT: 'INT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.SET: 'SET'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.IPV6: 'IPV6'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.UUID: 'UUID'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.JSON: 'JSON'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.UINT: 'UINT'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.MONEY: 'MONEY'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.BIT: 'BIT'>, <TokenType.SUPER: 'SUPER'>, <TokenType.IPV4: 'IPV4'>, <TokenType.TIME: 'TIME'>, <TokenType.CHAR: 'CHAR'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.NULL: 'NULL'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INT256: 'INT256'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.LIST: 'LIST'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.INT128: 'INT128'>, <TokenType.JSONB: 'JSONB'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.DATE: 'DATE'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>}
ENUM_TYPE_TOKENS = {<TokenType.SET: 'SET'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.ENUM: 'ENUM'>, <TokenType.ENUM16: 'ENUM16'>}
LOG_DEFAULTS_TO_LN = True
STRING_ALIASES = True
VALUES_FOLLOWED_BY_PAREN = False
SUPPORTS_PARTITION_SELECTION = True
SHOW_TRIE: Dict = {'BINARY': {'LOGS': {0: True}}, 'MASTER': {'LOGS': {0: True}, 'STATUS': {0: True}}, 'BINLOG': {'EVENTS': {0: True}}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'COLLATION': {0: True}, 'FULL': {'COLUMNS': {0: True}, 'PROCESSLIST': {0: True}, 'TABLES': {0: True}}, 'COLUMNS': {0: True}, 'CREATE': {'DATABASE': {0: True}, 'EVENT': {0: True}, 'FUNCTION': {0: True}, 'PROCEDURE': {0: True}, 'TABLE': {0: True}, 'TRIGGER': {0: True}, 'VIEW': {0: True}}, 'DATABASES': {0: True}, 'SCHEMAS': {0: True}, 'ENGINE': {0: True}, 'STORAGE': {'ENGINES': {0: True}}, 'ENGINES': {0: True}, 'ERRORS': {0: True}, 'EVENTS': {0: True}, 'FUNCTION': {'CODE': {0: True}, 'STATUS': {0: True}}, 'GRANTS': {0: True}, 'INDEX': {0: True}, 'OPEN': {'TABLES': {0: True}}, 'PLUGINS': {0: True}, 'PROCEDURE': {'CODE': {0: True}, 'STATUS': {0: True}}, 'PRIVILEGES': {0: True}, 'PROCESSLIST': {0: True}, 'PROFILE': {0: True}, 'PROFILES': {0: True}, 'RELAYLOG': {'EVENTS': {0: True}}, 'REPLICAS': {0: True}, 'SLAVE': {'HOSTS': {0: True}, 'STATUS': {0: True}}, 'REPLICA': {'STATUS': {0: True}}, 'GLOBAL': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'SESSION': {'STATUS': {0: True}, 'VARIABLES': {0: True}}, 'STATUS': {0: True}, 'TABLE': {'STATUS': {0: True}}, 'TABLES': {0: True}, 'TRIGGERS': {0: True}, 'VARIABLES': {0: True}, 'WARNINGS': {0: True}}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}, 'PERSIST': {0: True}, 'PERSIST_ONLY': {0: True}, 'CHARACTER': {'SET': {0: True}}, 'CHARSET': {0: True}, 'NAMES': {0: True}}

##### Inherited Members

sqlglot.parser.Parser
  Parser
  NO_PAREN_FUNCTIONS
  STRUCT_TYPE_TOKENS
  NESTED_TYPE_TOKENS
  AGGREGATE_TYPE_TOKENS
  SIGNED_TO_UNSIGNED_TYPE_TOKEN
  SUBQUERY_PREDICATES
  RESERVED_TOKENS
  DB_CREATABLES
  CREATABLES
  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
  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
  STRICT_CAST
  PREFIXED_PIVOT_COLUMNS
  IDENTIFY_PIVOT_STRINGS
  ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
  TABLESAMPLE_CSV
  DEFAULT_SAMPLING_METHOD
  SET_REQUIRES_ASSIGNMENT_DELIMITER
  TRIM_PATTERN_FIRST
  MODIFIERS_ATTACHED_TO_SET_OP
  SET_OP_MODIFIERS
  NO_PAREN_IF_COMMANDS
  JSON_ARROWS_REQUIRE_JSON_TYPE
  COLON_IS_VARIANT_EXTRACT
  SUPPORTS_IMPLICIT_UNNEST
  INTERVAL_SPANS
  error_level
  error_message_context
  max_errors
  dialect
  reset
  parse
  parse_into
  check_errors
  raise_error
  expression
  validate_expression
  errors
  sql

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

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

Generator converts a given syntax tree to the corresponding SQL string.

###### Arguments:

- pretty: Whether to format the produced SQL string. Default: False.
- identify: Determines when an identifier should be quoted. Possible values are: False (default): Never quote, except in cases where it's mandatory by the dialect. True or 'always': Always quote. 'safe': Only quote identifiers that are case insensitive.
- normalize: Whether to normalize identifiers to lowercase. Default: False.
- pad: The pad size in a formatted string. For example, this affects the indentation of a projection in a query, relative to its nesting level. Default: 2.
- indent: The indentation size in a formatted string. For example, this affects the indentation of subqueries and filters under a `WHERE` clause. Default: 2.
- normalize_functions: How to normalize function names. Possible values are: "upper" or True (default): Convert names to uppercase. "lower": Convert names to lowercase. False: Disables function name normalization.
- unsupported_level: Determines the generator's behavior when it encounters unsupported expressions. Default ErrorLevel.WARN.
- max_unsupported: Maximum number of unsupported messages to include in a raised UnsupportedError. This is only relevant if unsupported_level is ErrorLevel.RAISE. Default: 3
- leading_comma: Whether the comma is leading or trailing in select expressions. This is only relevant when generating in pretty mode. Default: False
- max_text_width: The max number of characters in a segment before creating new lines in pretty mode. The default is on the smaller end because the length only represents a segment and not the true line length. Default: 80
- comments: Whether to preserve comments in the output SQL code. Default: True

INTERVAL_ALLOWS_PLURAL_FORM = False
LOCKING_READS_SUPPORTED = True
NULL_ORDERING_SUPPORTED = None
JOIN_HINTS = False
TABLE_HINTS = True
DUPLICATE_KEY_UPDATE_WITH_SET = False
QUERY_HINT_SEP = ' '
VALUES_AS_TABLE = False
NVL2_SUPPORTED = False
LAST_DAY_SUPPORTS_DATE_PART = False
JSON_TYPE_REQUIRED_FOR_EXTRACTION = True
JSON_PATH_BRACKETED_KEY_SUPPORTED = False
JSON_KEY_VALUE_PAIR_SEP = ','
SUPPORTS_TO_NUMBER = False
PARSE_JSON_NAME = None
PAD_FILL_PATTERN_IS_REQUIRED = True
WRAP_DERIVED_VALUES = False
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathFilter'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRecursive'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathScript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSelector'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSlice'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathUnion'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.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.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.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TagColumnConstraint'>: <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.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArrayAgg'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.CurrentDate'>: <function no_paren_current_date_sql>, <class 'sqlglot.expressions.DateDiff'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateAdd'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateStrToDate'>: <function datestrtodate_sql>, <class 'sqlglot.expressions.DateSub'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DateTrunc'>: <function _date_trunc_sql>, <class 'sqlglot.expressions.Day'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfMonth'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfWeek'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.DayOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.GroupConcat'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.ILike'>: <function no_ilike_sql>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function arrow_json_extract_sql>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.Month'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.NullSafeEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.NullSafeNEQ'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.Pivot'>: <function no_pivot_sql>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrPosition'>: <function strposition_to_locate_sql>, <class 'sqlglot.expressions.StrToDate'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.StrToTime'>: <function _str_to_date_sql>, <class 'sqlglot.expressions.Stuff'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TableSample'>: <function no_tablesample_sql>, <class 'sqlglot.expressions.TimeFromParts'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimestampAdd'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimestampDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimestampSub'>: <function date_add_interval_sql.<locals>.func>, <class 'sqlglot.expressions.TimeStrToUnix'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.TimeStrToTime'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TimeToStr'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Trim'>: <function _trim_sql>, <class 'sqlglot.expressions.TryCast'>: <function no_trycast_sql>, <class 'sqlglot.expressions.TsOrDsAdd'>: <function date_add_sql.<locals>.func>, <class 'sqlglot.expressions.TsOrDsDiff'>: <function MySQL.Generator.<lambda>>, <class 'sqlglot.expressions.TsOrDsToDate'>: <function _ts_or_ds_to_date_sql>, <class 'sqlglot.expressions.UnixToTime'>: <function _unix_to_time_sql>, <class 'sqlglot.expressions.Week'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.WeekOfYear'>: <function _remove_ts_or_ds_to_date.<locals>.func>, <class 'sqlglot.expressions.Year'>: <function _remove_ts_or_ds_to_date.<locals>.func>}
UNSIGNED_TYPE_MAPPING = {<Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL'}
TIMESTAMP_TYPE_MAPPING = {<Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.UBIGINT: 'UBIGINT'>: 'BIGINT', <Type.UINT: 'UINT'>: 'INT', <Type.UMEDIUMINT: 'UMEDIUMINT'>: 'MEDIUMINT', <Type.USMALLINT: 'USMALLINT'>: 'SMALLINT', <Type.UTINYINT: 'UTINYINT'>: 'TINYINT', <Type.UDECIMAL: 'UDECIMAL'>: 'DECIMAL', <Type.TIMESTAMP: 'TIMESTAMP'>: 'DATETIME', <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>: 'TIMESTAMP', <Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>: 'TIMESTAMP'}
PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AllowedValuesProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BackupProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DataDeletionProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DynamicProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EmptyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.PartitionedOfProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PrimaryKey'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Property'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ReturnsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatDelimitedProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.RowFormatSerdeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SampleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SchemaCommentProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SecureProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SerdeProperties'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Set'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SettingsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SetProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.SetConfigProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SharingProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SequenceProperties'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.SortKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StabilityProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.StreamingTableProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.StrictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TemporaryProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ToTableProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.TransientProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.TransformModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.MergeTreeTTL'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.UnloggedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.VolatileProperty'>: <Location.UNSUPPORTED: 'UNSUPPORTED'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithSchemaBindingProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
LIMIT_FETCH = 'LIMIT'
LIMIT_ONLY_LITERALS = True
CHAR_CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR'}
SIGNED_CAST_MAPPING = {<Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED'}
CAST_MAPPING = {<Type.LONGTEXT: 'LONGTEXT'>: 'CHAR', <Type.LONGBLOB: 'LONGBLOB'>: 'CHAR', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'CHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'CHAR', <Type.TEXT: 'TEXT'>: 'CHAR', <Type.TINYBLOB: 'TINYBLOB'>: 'CHAR', <Type.TINYTEXT: 'TINYTEXT'>: 'CHAR', <Type.VARCHAR: 'VARCHAR'>: 'CHAR', <Type.BIGINT: 'BIGINT'>: 'SIGNED', <Type.BOOLEAN: 'BOOLEAN'>: 'SIGNED', <Type.INT: 'INT'>: 'SIGNED', <Type.SMALLINT: 'SMALLINT'>: 'SIGNED', <Type.TINYINT: 'TINYINT'>: 'SIGNED', <Type.MEDIUMINT: 'MEDIUMINT'>: 'SIGNED', <Type.UBIGINT: 'UBIGINT'>: 'UNSIGNED'}
TIMESTAMP_FUNC_TYPES = {<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>}
RESERVED_KEYWORDS = {'else', 'unique', 'keys', 'left', 'infile', 'using', 'tinytext', 'elseif', 'percent_rank', 'trailing', 'longtext', 'lead', 'primary', 'update', 'decimal', 'mod', 'databases', 'cross', 'cume_dist', 'float', 'ssl', 'double', 'varbinary', 'day_minute', 'window', 'second_microsecond', 'right', 'all', 'inner', 'read_write', 'replace', 'in', 'not', 'select', 'int3', 'linear', 'column', 'before', 'current_time', 'get', 'sql_small_result', 'distinctrow', 'join', 'asc', 'localtime', 'match', 'kill', 'specific', 'if', 'partition', 'purge', 'day_hour', 'repeat', 'ignore', 'alter', 'char', 'character', 'hour_minute', 'long', 'middleint', 'signal', 'varcharacter', 'while', 'outfile', 'precision', 'spatial', 'to', 'range', 'binary', 'deterministic', 'blob', 'from', 'as', 'call', 'json_table', 'table', 'require', 'master_bind', 'true', 'grouping', 'recursive', 'dec', 'high_priority', 'each', 'check', 'except', 'write', 'when', 'leave', 'both', 'float8', 'rename', 'create', 'change', 'resignal', 'smallint', 'zerofill', 'terminated', 'master_ssl_verify_server_cert', 'limit', 'exit', 'between', 'delayed', 'continue', 'io_after_gtids', 'optimizer_costs', 'explain', 'int2', 'sqlstate', 'nth_value', 'function', 'collate', 'generated', 'separator', 'sqlexception', 'asensitive', 'optimize', 'utc_timestamp', 'starting', 'dense_rank', 'insensitive', 'delete', 'regexp', 'references', 'values', 'return', 'varchar', 'default', 'modifies', 'io_before_gtids', 'float4', 'reads', 'varying', 'sqlwarning', 'unsigned', 'then', 'virtual', 'describe', 'fulltext', 'read', 'dual', 'no_write_to_binlog', 'day_second', 'or', 'release', 'for', 'null', 'hour_second', 'set', 'maxvalue', 'use', 'database', 'usage', 'trigger', 'sql', 'index', 'loop', 'out', 'on', 'schema', 'cube', 'over', 'having', 'lock', 'mediumtext', 'analyze', 'outer', 'fetch', 'minute_second', 'natural', 'sql_calc_found_rows', 'optionally', 'exists', 'show', 'by', 'grant', 'undo', 'load', 'cursor', 'constraint', 'hour_microsecond', 'int8', 'int1', 'case', 'convert', 'of', 'real', 'numeric', 'int4', 'procedure', 'force', 'inout', 'into', 'utc_time', 'union', 'current_timestamp', 'mediumint', 'localtimestamp', 'and', 'sensitive', 'with', 'ntile', 'straight_join', 'year_month', 'distinct', 'last_value', 'tinyint', 'schemas', 'unlock', 'is', 'groups', 'rows', 'stored', 'false', 'lines', 'intersect', 'revoke', 'where', 'first_value', 'utc_date', 'key', 'int', 'row_number', 'add', 'interval', 'integer', 'day_microsecond', 'desc', 'group', 'system', 'like', 'current_date', 'declare', 'current_user', 'order', 'div', 'cascade', 'accessible', 'foreign', 'low_priority', 'minute_microsecond', 'tinyblob', 'condition', 'leading', 'bigint', 'mediumblob', 'iterate', 'lateral', 'drop', 'rlike', 'restrict', 'enclosed', 'insert', 'option', 'escaped', 'sql_big_result', 'row', 'longblob', 'rank', 'lag', 'empty', 'xor'}
def array_sql(self, expression: sqlglot.expressions.Array) -> str: View Source

    1105        def array_sql(self, expression: exp.Array) -> str:
    1106            self.unsupported("Arrays are not supported by MySQL")
    1107            return self.function_fallback_sql(expression)

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

    1109        def arraycontainsall_sql(self, expression: exp.ArrayContainsAll) -> str:
    1110            self.unsupported("Array operations are not supported by MySQL")
    1111            return self.function_fallback_sql(expression)

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

    1113        def dpipe_sql(self, expression: exp.DPipe) -> str:
    1114            return self.func("CONCAT", *expression.flatten())

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

    1116        def extract_sql(self, expression: exp.Extract) -> str:
    1117            unit = expression.name
    1118            if unit and unit.lower() == "epoch":
    1119                return self.func("UNIX_TIMESTAMP", expression.expression)
    1120
    1121            return super().extract_sql(expression)

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

    1123        def datatype_sql(self, expression: exp.DataType) -> str:
    1124            # https://dev.mysql.com/doc/refman/8.0/en/numeric-type-syntax.html
    1125            result = super().datatype_sql(expression)
    1126            if expression.this in self.UNSIGNED_TYPE_MAPPING:
    1127                result = f"{result} UNSIGNED"
    1128            return result

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

    1130        def jsonarraycontains_sql(self, expression: exp.JSONArrayContains) -> str:
    1131            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

    1133        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
    1134            if expression.to.this in self.TIMESTAMP_FUNC_TYPES:
    1135                return self.func("TIMESTAMP", expression.this)
    1136
    1137            to = self.CAST_MAPPING.get(expression.to.this)
    1138
    1139            if to:
    1140                expression.to.set("this", to)
    1141            return super().cast_sql(expression)

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

    1143        def show_sql(self, expression: exp.Show) -> str:
    1144            this = f" {expression.name}"
    1145            full = " FULL" if expression.args.get("full") else ""
    1146            global_ = " GLOBAL" if expression.args.get("global") else ""
    1147
    1148            target = self.sql(expression, "target")
    1149            target = f" {target}" if target else ""
    1150            if expression.name in ("COLUMNS", "INDEX"):
    1151                target = f" FROM{target}"
    1152            elif expression.name == "GRANTS":
    1153                target = f" FOR{target}"
    1154
    1155            db = self._prefixed_sql("FROM", expression, "db")
    1156
    1157            like = self._prefixed_sql("LIKE", expression, "like")
    1158            where = self.sql(expression, "where")
    1159
    1160            types = self.expressions(expression, key="types")
    1161            types = f" {types}" if types else types
    1162            query = self._prefixed_sql("FOR QUERY", expression, "query")
    1163
    1164            if expression.name == "PROFILE":
    1165                offset = self._prefixed_sql("OFFSET", expression, "offset")
    1166                limit = self._prefixed_sql("LIMIT", expression, "limit")
    1167            else:
    1168                offset = ""
    1169                limit = self._oldstyle_limit_sql(expression)
    1170
    1171            log = self._prefixed_sql("IN", expression, "log")
    1172            position = self._prefixed_sql("FROM", expression, "position")
    1173
    1174            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    1175
    1176            if expression.name == "ENGINE":
    1177                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    1178            else:
    1179                mutex_or_status = ""
    1180
    1181            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

    1183        def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    1184            dtype = self.sql(expression, "dtype")
    1185            if not dtype:
    1186                return super().altercolumn_sql(expression)
    1187
    1188            this = self.sql(expression, "this")
    1189            return f"MODIFY COLUMN {this} {dtype}"

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

    1203        def chr_sql(self, expression: exp.Chr) -> str:
    1204            this = self.expressions(sqls=[expression.this] + expression.expressions)
    1205            charset = expression.args.get("charset")
    1206            using = f" USING {self.sql(charset)}" if charset else ""
    1207            return f"CHAR({this}{using})"

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

    1209        def timestamptrunc_sql(self, expression: exp.TimestampTrunc) -> str:
    1210            unit = expression.args.get("unit")
    1211
    1212            # Pick an old-enough date to avoid negative timestamp diffs
    1213            start_ts = "'0000-01-01 00:00:00'"
    1214
    1215            # Source: https://stackoverflow.com/a/32955740
    1216            timestamp_diff = build_date_delta(exp.TimestampDiff)([unit, start_ts, expression.this])
    1217            interval = exp.Interval(this=timestamp_diff, unit=unit)
    1218            dateadd = build_date_delta_with_interval(exp.DateAdd)([start_ts, interval])
    1219
    1220            return self.sql(dateadd)

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

    1222        def converttimezone_sql(self, expression: exp.ConvertTimezone) -> str:
    1223            from_tz = expression.args.get("source_tz")
    1224            to_tz = expression.args.get("target_tz")
    1225            dt = expression.args.get("timestamp")
    1226
    1227            return self.func("CONVERT_TZ", dt, from_tz, to_tz)

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

##### Inherited Members

sqlglot.generator.Generator
  Generator
  IGNORE_NULLS_IN_FUNC
  EXPLICIT_SET_OP
  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
  TIME_PART_SINGULARS
  TOKEN_MAPPING
  STRUCT_DELIMITER
  PARAMETER_TOKEN
  NAMED_PLACEHOLDER_TOKEN
  WITH_SEPARATED_COMMENTS
  EXCLUDE_COMMENTS
  UNWRAPPED_INTERVAL_VALUES
  PARAMETERIZABLE_TEXT_TYPES
  EXPRESSIONS_WITHOUT_NESTED_CTES
  SENTINEL_LINE_BREAK
  pretty
  identify
  normalize
  pad
  unsupported_level
  max_unsupported
  leading_comma
  max_text_width
  comments
  dialect
  normalize_functions
  unsupported_messages
  generate
  preprocess
  unsupported
  sep
  seg
  pad_comment
  maybe_comment
  wrap
  no_identify
  normalize_func
  indent
  sql
  uncache_sql
  cache_sql
  characterset_sql
  column_parts
  column_sql
  columnposition_sql
  columndef_sql
  columnconstraint_sql
  computedcolumnconstraint_sql
  autoincrementcolumnconstraint_sql
  compresscolumnconstraint_sql
  generatedasidentitycolumnconstraint_sql
  generatedasrowcolumnconstraint_sql
  periodforsystemtimeconstraint_sql
  notnullcolumnconstraint_sql
  transformcolumnconstraint_sql
  primarykeycolumnconstraint_sql
  uniquecolumnconstraint_sql
  createable_sql
  create_sql
  sequenceproperties_sql
  clone_sql
  describe_sql
  heredoc_sql
  prepend_ctes
  with_sql
  cte_sql
  tablealias_sql
  bitstring_sql
  hexstring_sql
  bytestring_sql
  unicodestring_sql
  rawstring_sql
  datatypeparam_sql
  directory_sql
  delete_sql
  drop_sql
  except_sql
  except_op
  fetch_sql
  filter_sql
  hint_sql
  indexparameters_sql
  index_sql
  identifier_sql
  hex_sql
  lowerhex_sql
  inputoutputformat_sql
  national_sql
  partition_sql
  properties_sql
  root_properties
  properties
  with_properties
  locate_properties
  property_name
  property_sql
  likeproperty_sql
  fallbackproperty_sql
  journalproperty_sql
  freespaceproperty_sql
  checksumproperty_sql
  mergeblockratioproperty_sql
  datablocksizeproperty_sql
  blockcompressionproperty_sql
  isolatedloadingproperty_sql
  partitionboundspec_sql
  partitionedofproperty_sql
  lockingproperty_sql
  withdataproperty_sql
  withsystemversioningproperty_sql
  insert_sql
  intersect_sql
  intersect_op
  introducer_sql
  kill_sql
  pseudotype_sql
  objectidentifier_sql
  onconflict_sql
  returning_sql
  rowformatdelimitedproperty_sql
  withtablehint_sql
  indextablehint_sql
  historicaldata_sql
  table_parts
  table_sql
  tablesample_sql
  pivot_sql
  version_sql
  tuple_sql
  update_sql
  values_sql
  var_sql
  into_sql
  from_sql
  group_sql
  having_sql
  connect_sql
  prior_sql
  join_sql
  lambda_sql
  lateral_op
  lateral_sql
  limit_sql
  offset_sql
  setitem_sql
  set_sql
  pragma_sql
  lock_sql
  literal_sql
  escape_str
  loaddata_sql
  null_sql
  boolean_sql
  order_sql
  withfill_sql
  cluster_sql
  distribute_sql
  sort_sql
  ordered_sql
  matchrecognizemeasure_sql
  matchrecognize_sql
  query_modifiers
  options_modifier
  queryoption_sql
  offset_limit_modifiers
  after_limit_modifiers
  select_sql
  schema_sql
  schema_columns_sql
  star_sql
  parameter_sql
  sessionparameter_sql
  placeholder_sql
  subquery_sql
  qualify_sql
  set_operations
  union_sql
  union_op
  unnest_sql
  prewhere_sql
  where_sql
  window_sql
  partition_by_sql
  windowspec_sql
  withingroup_sql
  between_sql
  bracket_offset_expressions
  bracket_sql
  all_sql
  any_sql
  exists_sql
  case_sql
  constraint_sql
  nextvaluefor_sql
  trim_sql
  convert_concat_args
  concat_sql
  concatws_sql
  check_sql
  foreignkey_sql
  primarykey_sql
  if_sql
  matchagainst_sql
  jsonkeyvalue_sql
  jsonpath_sql
  json_path_part
  formatjson_sql
  jsonobject_sql
  jsonobjectagg_sql
  jsonarray_sql
  jsonarrayagg_sql
  jsoncolumndef_sql
  jsonschema_sql
  jsontable_sql
  openjsoncolumndef_sql
  openjson_sql
  in_sql
  in_unnest_op
  interval_sql
  return_sql
  reference_sql
  anonymous_sql
  paren_sql
  neg_sql
  not_sql
  alias_sql
  pivotalias_sql
  aliases_sql
  atindex_sql
  attimezone_sql
  fromtimezone_sql
  add_sql
  and_sql
  or_sql
  xor_sql
  connector_sql
  bitwiseand_sql
  bitwiseleftshift_sql
  bitwisenot_sql
  bitwiseor_sql
  bitwiserightshift_sql
  bitwisexor_sql
  currentdate_sql
  collate_sql
  command_sql
  comment_sql
  mergetreettlaction_sql
  mergetreettl_sql
  transaction_sql
  commit_sql
  rollback_sql
  alterdiststyle_sql
  altersortkey_sql
  renametable_sql
  renamecolumn_sql
  alterset_sql
  alter_sql
  add_column_sql
  droppartition_sql
  addconstraint_sql
  distinct_sql
  ignorenulls_sql
  respectnulls_sql
  havingmax_sql
  intdiv_sql
  div_sql
  overlaps_sql
  distance_sql
  dot_sql
  eq_sql
  propertyeq_sql
  escape_sql
  glob_sql
  gt_sql
  gte_sql
  ilike_sql
  ilikeany_sql
  is_sql
  like_sql
  likeany_sql
  similarto_sql
  lt_sql
  lte_sql
  mod_sql
  mul_sql
  neq_sql
  nullsafeeq_sql
  nullsafeneq_sql
  slice_sql
  sub_sql
  trycast_sql
  try_sql
  log_sql
  use_sql
  binary
  function_fallback_sql
  func
  format_args
  too_wide
  format_time
  expressions
  op_expressions
  naked_property
  tag_sql
  token_sql
  userdefinedfunction_sql
  joinhint_sql
  kwarg_sql
  when_sql
  merge_sql
  tochar_sql
  tonumber_sql
  dictproperty_sql
  dictrange_sql
  dictsubproperty_sql
  oncluster_sql
  clusteredbyproperty_sql
  anyvalue_sql
  querytransform_sql
  indexconstraintoption_sql
  checkcolumnconstraint_sql
  indexcolumnconstraint_sql
  nvl2_sql
  comprehension_sql
  columnprefix_sql
  opclass_sql
  predict_sql
  forin_sql
  refresh_sql
  toarray_sql
  tsordstotime_sql
  tsordstotimestamp_sql
  tsordstodate_sql
  unixdate_sql
  lastday_sql
  dateadd_sql
  arrayany_sql
  struct_sql
  partitionrange_sql
  truncatetable_sql
  convert_sql
  copyparameter_sql
  credentials_sql
  copy_sql
  semicolon_sql
  datadeletionproperty_sql
  maskingpolicycolumnconstraint_sql
  gapfill_sql
  scope_resolution
  scoperesolution_sql
  parsejson_sql
  rand_sql
  changes_sql
  pad_sql
  summarize_sql
  explodinggenerateseries_sql
  arrayconcat_sql