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sqlglot.dialects.teradata

  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    max_or_greatest,
  9    min_or_least,
 10    rename_func,
 11    to_number_with_nls_param,
 12)
 13from sqlglot.tokens import TokenType
 14
 15
 16def _date_add_sql(
 17    kind: t.Literal["+", "-"],
 18) -> t.Callable[[Teradata.Generator, exp.DateAdd | exp.DateSub], str]:
 19    def func(self: Teradata.Generator, expression: exp.DateAdd | exp.DateSub) -> str:
 20        this = self.sql(expression, "this")
 21        unit = expression.args.get("unit")
 22        value = self._simplify_unless_literal(expression.expression)
 23
 24        if not isinstance(value, exp.Literal):
 25            self.unsupported("Cannot add non literal")
 26
 27        if value.is_negative:
 28            kind_to_op = {"+": "-", "-": "+"}
 29            value = exp.Literal.string(value.name[1:])
 30        else:
 31            kind_to_op = {"+": "+", "-": "-"}
 32            value.set("is_string", True)
 33
 34        return f"{this} {kind_to_op[kind]} {self.sql(exp.Interval(this=value, unit=unit))}"
 35
 36    return func
 37
 38
 39class Teradata(Dialect):
 40    SUPPORTS_SEMI_ANTI_JOIN = False
 41    TYPED_DIVISION = True
 42
 43    TIME_MAPPING = {
 44        "YY": "%y",
 45        "Y4": "%Y",
 46        "YYYY": "%Y",
 47        "M4": "%B",
 48        "M3": "%b",
 49        "M": "%-M",
 50        "MI": "%M",
 51        "MM": "%m",
 52        "MMM": "%b",
 53        "MMMM": "%B",
 54        "D": "%-d",
 55        "DD": "%d",
 56        "D3": "%j",
 57        "DDD": "%j",
 58        "H": "%-H",
 59        "HH": "%H",
 60        "HH24": "%H",
 61        "S": "%-S",
 62        "SS": "%S",
 63        "SSSSSS": "%f",
 64        "E": "%a",
 65        "EE": "%a",
 66        "E3": "%a",
 67        "E4": "%A",
 68        "EEE": "%a",
 69        "EEEE": "%A",
 70    }
 71
 72    class Tokenizer(tokens.Tokenizer):
 73        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
 74        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
 75        KEYWORDS = {
 76            **tokens.Tokenizer.KEYWORDS,
 77            "**": TokenType.DSTAR,
 78            "^=": TokenType.NEQ,
 79            "BYTEINT": TokenType.SMALLINT,
 80            "COLLECT": TokenType.COMMAND,
 81            "DEL": TokenType.DELETE,
 82            "EQ": TokenType.EQ,
 83            "GE": TokenType.GTE,
 84            "GT": TokenType.GT,
 85            "HELP": TokenType.COMMAND,
 86            "INS": TokenType.INSERT,
 87            "LE": TokenType.LTE,
 88            "LT": TokenType.LT,
 89            "MINUS": TokenType.EXCEPT,
 90            "MOD": TokenType.MOD,
 91            "NE": TokenType.NEQ,
 92            "NOT=": TokenType.NEQ,
 93            "SAMPLE": TokenType.TABLE_SAMPLE,
 94            "SEL": TokenType.SELECT,
 95            "ST_GEOMETRY": TokenType.GEOMETRY,
 96            "TOP": TokenType.TOP,
 97            "UPD": TokenType.UPDATE,
 98        }
 99
100        # Teradata does not support % as a modulo operator
101        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
102        SINGLE_TOKENS.pop("%")
103
104    class Parser(parser.Parser):
105        TABLESAMPLE_CSV = True
106        VALUES_FOLLOWED_BY_PAREN = False
107
108        CHARSET_TRANSLATORS = {
109            "GRAPHIC_TO_KANJISJIS",
110            "GRAPHIC_TO_LATIN",
111            "GRAPHIC_TO_UNICODE",
112            "GRAPHIC_TO_UNICODE_PadSpace",
113            "KANJI1_KanjiEBCDIC_TO_UNICODE",
114            "KANJI1_KanjiEUC_TO_UNICODE",
115            "KANJI1_KANJISJIS_TO_UNICODE",
116            "KANJI1_SBC_TO_UNICODE",
117            "KANJISJIS_TO_GRAPHIC",
118            "KANJISJIS_TO_LATIN",
119            "KANJISJIS_TO_UNICODE",
120            "LATIN_TO_GRAPHIC",
121            "LATIN_TO_KANJISJIS",
122            "LATIN_TO_UNICODE",
123            "LOCALE_TO_UNICODE",
124            "UNICODE_TO_GRAPHIC",
125            "UNICODE_TO_GRAPHIC_PadGraphic",
126            "UNICODE_TO_GRAPHIC_VarGraphic",
127            "UNICODE_TO_KANJI1_KanjiEBCDIC",
128            "UNICODE_TO_KANJI1_KanjiEUC",
129            "UNICODE_TO_KANJI1_KANJISJIS",
130            "UNICODE_TO_KANJI1_SBC",
131            "UNICODE_TO_KANJISJIS",
132            "UNICODE_TO_LATIN",
133            "UNICODE_TO_LOCALE",
134            "UNICODE_TO_UNICODE_FoldSpace",
135            "UNICODE_TO_UNICODE_Fullwidth",
136            "UNICODE_TO_UNICODE_Halfwidth",
137            "UNICODE_TO_UNICODE_NFC",
138            "UNICODE_TO_UNICODE_NFD",
139            "UNICODE_TO_UNICODE_NFKC",
140            "UNICODE_TO_UNICODE_NFKD",
141        }
142
143        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
144        FUNC_TOKENS.remove(TokenType.REPLACE)
145
146        STATEMENT_PARSERS = {
147            **parser.Parser.STATEMENT_PARSERS,
148            TokenType.DATABASE: lambda self: self.expression(
149                exp.Use, this=self._parse_table(schema=False)
150            ),
151            TokenType.REPLACE: lambda self: self._parse_create(),
152        }
153
154        FUNCTION_PARSERS = {
155            **parser.Parser.FUNCTION_PARSERS,
156            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
157            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
158            "RANGE_N": lambda self: self._parse_rangen(),
159            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
160        }
161
162        EXPONENT = {
163            TokenType.DSTAR: exp.Pow,
164        }
165
166        def _parse_translate(self, strict: bool) -> exp.Expression:
167            this = self._parse_assignment()
168
169            if not self._match(TokenType.USING):
170                self.raise_error("Expected USING in TRANSLATE")
171
172            if self._match_texts(self.CHARSET_TRANSLATORS):
173                charset_split = self._prev.text.split("_TO_")
174                to = self.expression(exp.CharacterSet, this=charset_split[1])
175            else:
176                self.raise_error("Expected a character set translator after USING in TRANSLATE")
177
178            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
179
180        # FROM before SET in Teradata UPDATE syntax
181        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
182        def _parse_update(self) -> exp.Update:
183            return self.expression(
184                exp.Update,
185                **{  # type: ignore
186                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
187                    "from": self._parse_from(joins=True),
188                    "expressions": self._match(TokenType.SET)
189                    and self._parse_csv(self._parse_equality),
190                    "where": self._parse_where(),
191                },
192            )
193
194        def _parse_rangen(self):
195            this = self._parse_id_var()
196            self._match(TokenType.BETWEEN)
197
198            expressions = self._parse_csv(self._parse_assignment)
199            each = self._match_text_seq("EACH") and self._parse_assignment()
200
201            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)
202
203        def _parse_index_params(self) -> exp.IndexParameters:
204            this = super()._parse_index_params()
205
206            if this.args.get("on"):
207                this.set("on", None)
208                self._retreat(self._index - 2)
209            return this
210
211    class Generator(generator.Generator):
212        LIMIT_IS_TOP = True
213        JOIN_HINTS = False
214        TABLE_HINTS = False
215        QUERY_HINTS = False
216        TABLESAMPLE_KEYWORDS = "SAMPLE"
217        LAST_DAY_SUPPORTS_DATE_PART = False
218        CAN_IMPLEMENT_ARRAY_ANY = True
219
220        TYPE_MAPPING = {
221            **generator.Generator.TYPE_MAPPING,
222            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
223            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
224        }
225
226        PROPERTIES_LOCATION = {
227            **generator.Generator.PROPERTIES_LOCATION,
228            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
229            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
230            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
231        }
232
233        TRANSFORMS = {
234            **generator.Generator.TRANSFORMS,
235            exp.ArgMax: rename_func("MAX_BY"),
236            exp.ArgMin: rename_func("MIN_BY"),
237            exp.ArraySize: rename_func("CARDINALITY"),
238            exp.Max: max_or_greatest,
239            exp.Min: min_or_least,
240            exp.Pow: lambda self, e: self.binary(e, "**"),
241            exp.Select: transforms.preprocess(
242                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
243            ),
244            exp.StrToDate: lambda self,
245            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
246            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
247            exp.ToNumber: to_number_with_nls_param,
248            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
249            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
250            exp.DateAdd: _date_add_sql("+"),
251            exp.DateSub: _date_add_sql("-"),
252            exp.Quarter: lambda self, e: self.sql(exp.Extract(this="QUARTER", expression=e.this)),
253        }
254
255        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
256            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
257                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
258                expression.to.pop()
259
260            return super().cast_sql(expression, safe_prefix=safe_prefix)
261
262        def trycast_sql(self, expression: exp.TryCast) -> str:
263            return self.cast_sql(expression, safe_prefix="TRY")
264
265        def tablesample_sql(
266            self,
267            expression: exp.TableSample,
268            sep: str = " AS ",
269            tablesample_keyword: t.Optional[str] = None,
270        ) -> str:
271            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
272
273        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
274            return f"PARTITION BY {self.sql(expression, 'this')}"
275
276        # FROM before SET in Teradata UPDATE syntax
277        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
278        def update_sql(self, expression: exp.Update) -> str:
279            this = self.sql(expression, "this")
280            from_sql = self.sql(expression, "from")
281            set_sql = self.expressions(expression, flat=True)
282            where_sql = self.sql(expression, "where")
283            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
284            return self.prepend_ctes(expression, sql)
285
286        def mod_sql(self, expression: exp.Mod) -> str:
287            return self.binary(expression, "MOD")
288
289        def datatype_sql(self, expression: exp.DataType) -> str:
290            type_sql = super().datatype_sql(expression)
291            prefix_sql = expression.args.get("prefix")
292            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
293
294        def rangen_sql(self, expression: exp.RangeN) -> str:
295            this = self.sql(expression, "this")
296            expressions_sql = self.expressions(expression)
297            each_sql = self.sql(expression, "each")
298            each_sql = f" EACH {each_sql}" if each_sql else ""
299
300            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
301
302        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
303            kind = self.sql(expression, "kind").upper()
304            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
305                this_name = self.sql(expression.this, "this")
306                this_properties = self.properties(
307                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
308                    wrapped=False,
309                    prefix=",",
310                )
311                this_schema = self.schema_columns_sql(expression.this)
312                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
313
314            return super().createable_sql(expression, locations)
315
316        def extract_sql(self, expression: exp.Extract) -> str:
317            this = self.sql(expression, "this")
318            if this.upper() != "QUARTER":
319                return super().extract_sql(expression)
320
321            to_char = exp.func("to_char", expression.expression, exp.Literal.string("Q"))
322            return self.sql(exp.cast(to_char, exp.DataType.Type.INT))
323
324        def interval_sql(self, expression: exp.Interval) -> str:
325            multiplier = 0
326            unit = expression.text("unit")
327
328            if unit.startswith("WEEK"):
329                multiplier = 7
330            elif unit.startswith("QUARTER"):
331                multiplier = 90
332
333            if multiplier:
334                return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})"
335
336            return super().interval_sql(expression)
class Teradata(sqlglot.dialects.dialect.Dialect):
 40class Teradata(Dialect):
 41    SUPPORTS_SEMI_ANTI_JOIN = False
 42    TYPED_DIVISION = True
 43
 44    TIME_MAPPING = {
 45        "YY": "%y",
 46        "Y4": "%Y",
 47        "YYYY": "%Y",
 48        "M4": "%B",
 49        "M3": "%b",
 50        "M": "%-M",
 51        "MI": "%M",
 52        "MM": "%m",
 53        "MMM": "%b",
 54        "MMMM": "%B",
 55        "D": "%-d",
 56        "DD": "%d",
 57        "D3": "%j",
 58        "DDD": "%j",
 59        "H": "%-H",
 60        "HH": "%H",
 61        "HH24": "%H",
 62        "S": "%-S",
 63        "SS": "%S",
 64        "SSSSSS": "%f",
 65        "E": "%a",
 66        "EE": "%a",
 67        "E3": "%a",
 68        "E4": "%A",
 69        "EEE": "%a",
 70        "EEEE": "%A",
 71    }
 72
 73    class Tokenizer(tokens.Tokenizer):
 74        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
 75        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
 76        KEYWORDS = {
 77            **tokens.Tokenizer.KEYWORDS,
 78            "**": TokenType.DSTAR,
 79            "^=": TokenType.NEQ,
 80            "BYTEINT": TokenType.SMALLINT,
 81            "COLLECT": TokenType.COMMAND,
 82            "DEL": TokenType.DELETE,
 83            "EQ": TokenType.EQ,
 84            "GE": TokenType.GTE,
 85            "GT": TokenType.GT,
 86            "HELP": TokenType.COMMAND,
 87            "INS": TokenType.INSERT,
 88            "LE": TokenType.LTE,
 89            "LT": TokenType.LT,
 90            "MINUS": TokenType.EXCEPT,
 91            "MOD": TokenType.MOD,
 92            "NE": TokenType.NEQ,
 93            "NOT=": TokenType.NEQ,
 94            "SAMPLE": TokenType.TABLE_SAMPLE,
 95            "SEL": TokenType.SELECT,
 96            "ST_GEOMETRY": TokenType.GEOMETRY,
 97            "TOP": TokenType.TOP,
 98            "UPD": TokenType.UPDATE,
 99        }
100
101        # Teradata does not support % as a modulo operator
102        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
103        SINGLE_TOKENS.pop("%")
104
105    class Parser(parser.Parser):
106        TABLESAMPLE_CSV = True
107        VALUES_FOLLOWED_BY_PAREN = False
108
109        CHARSET_TRANSLATORS = {
110            "GRAPHIC_TO_KANJISJIS",
111            "GRAPHIC_TO_LATIN",
112            "GRAPHIC_TO_UNICODE",
113            "GRAPHIC_TO_UNICODE_PadSpace",
114            "KANJI1_KanjiEBCDIC_TO_UNICODE",
115            "KANJI1_KanjiEUC_TO_UNICODE",
116            "KANJI1_KANJISJIS_TO_UNICODE",
117            "KANJI1_SBC_TO_UNICODE",
118            "KANJISJIS_TO_GRAPHIC",
119            "KANJISJIS_TO_LATIN",
120            "KANJISJIS_TO_UNICODE",
121            "LATIN_TO_GRAPHIC",
122            "LATIN_TO_KANJISJIS",
123            "LATIN_TO_UNICODE",
124            "LOCALE_TO_UNICODE",
125            "UNICODE_TO_GRAPHIC",
126            "UNICODE_TO_GRAPHIC_PadGraphic",
127            "UNICODE_TO_GRAPHIC_VarGraphic",
128            "UNICODE_TO_KANJI1_KanjiEBCDIC",
129            "UNICODE_TO_KANJI1_KanjiEUC",
130            "UNICODE_TO_KANJI1_KANJISJIS",
131            "UNICODE_TO_KANJI1_SBC",
132            "UNICODE_TO_KANJISJIS",
133            "UNICODE_TO_LATIN",
134            "UNICODE_TO_LOCALE",
135            "UNICODE_TO_UNICODE_FoldSpace",
136            "UNICODE_TO_UNICODE_Fullwidth",
137            "UNICODE_TO_UNICODE_Halfwidth",
138            "UNICODE_TO_UNICODE_NFC",
139            "UNICODE_TO_UNICODE_NFD",
140            "UNICODE_TO_UNICODE_NFKC",
141            "UNICODE_TO_UNICODE_NFKD",
142        }
143
144        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
145        FUNC_TOKENS.remove(TokenType.REPLACE)
146
147        STATEMENT_PARSERS = {
148            **parser.Parser.STATEMENT_PARSERS,
149            TokenType.DATABASE: lambda self: self.expression(
150                exp.Use, this=self._parse_table(schema=False)
151            ),
152            TokenType.REPLACE: lambda self: self._parse_create(),
153        }
154
155        FUNCTION_PARSERS = {
156            **parser.Parser.FUNCTION_PARSERS,
157            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
158            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
159            "RANGE_N": lambda self: self._parse_rangen(),
160            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
161        }
162
163        EXPONENT = {
164            TokenType.DSTAR: exp.Pow,
165        }
166
167        def _parse_translate(self, strict: bool) -> exp.Expression:
168            this = self._parse_assignment()
169
170            if not self._match(TokenType.USING):
171                self.raise_error("Expected USING in TRANSLATE")
172
173            if self._match_texts(self.CHARSET_TRANSLATORS):
174                charset_split = self._prev.text.split("_TO_")
175                to = self.expression(exp.CharacterSet, this=charset_split[1])
176            else:
177                self.raise_error("Expected a character set translator after USING in TRANSLATE")
178
179            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
180
181        # FROM before SET in Teradata UPDATE syntax
182        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
183        def _parse_update(self) -> exp.Update:
184            return self.expression(
185                exp.Update,
186                **{  # type: ignore
187                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
188                    "from": self._parse_from(joins=True),
189                    "expressions": self._match(TokenType.SET)
190                    and self._parse_csv(self._parse_equality),
191                    "where": self._parse_where(),
192                },
193            )
194
195        def _parse_rangen(self):
196            this = self._parse_id_var()
197            self._match(TokenType.BETWEEN)
198
199            expressions = self._parse_csv(self._parse_assignment)
200            each = self._match_text_seq("EACH") and self._parse_assignment()
201
202            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)
203
204        def _parse_index_params(self) -> exp.IndexParameters:
205            this = super()._parse_index_params()
206
207            if this.args.get("on"):
208                this.set("on", None)
209                self._retreat(self._index - 2)
210            return this
211
212    class Generator(generator.Generator):
213        LIMIT_IS_TOP = True
214        JOIN_HINTS = False
215        TABLE_HINTS = False
216        QUERY_HINTS = False
217        TABLESAMPLE_KEYWORDS = "SAMPLE"
218        LAST_DAY_SUPPORTS_DATE_PART = False
219        CAN_IMPLEMENT_ARRAY_ANY = True
220
221        TYPE_MAPPING = {
222            **generator.Generator.TYPE_MAPPING,
223            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
224            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
225        }
226
227        PROPERTIES_LOCATION = {
228            **generator.Generator.PROPERTIES_LOCATION,
229            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
230            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
231            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
232        }
233
234        TRANSFORMS = {
235            **generator.Generator.TRANSFORMS,
236            exp.ArgMax: rename_func("MAX_BY"),
237            exp.ArgMin: rename_func("MIN_BY"),
238            exp.ArraySize: rename_func("CARDINALITY"),
239            exp.Max: max_or_greatest,
240            exp.Min: min_or_least,
241            exp.Pow: lambda self, e: self.binary(e, "**"),
242            exp.Select: transforms.preprocess(
243                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
244            ),
245            exp.StrToDate: lambda self,
246            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
247            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
248            exp.ToNumber: to_number_with_nls_param,
249            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
250            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
251            exp.DateAdd: _date_add_sql("+"),
252            exp.DateSub: _date_add_sql("-"),
253            exp.Quarter: lambda self, e: self.sql(exp.Extract(this="QUARTER", expression=e.this)),
254        }
255
256        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
257            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
258                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
259                expression.to.pop()
260
261            return super().cast_sql(expression, safe_prefix=safe_prefix)
262
263        def trycast_sql(self, expression: exp.TryCast) -> str:
264            return self.cast_sql(expression, safe_prefix="TRY")
265
266        def tablesample_sql(
267            self,
268            expression: exp.TableSample,
269            sep: str = " AS ",
270            tablesample_keyword: t.Optional[str] = None,
271        ) -> str:
272            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
273
274        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
275            return f"PARTITION BY {self.sql(expression, 'this')}"
276
277        # FROM before SET in Teradata UPDATE syntax
278        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
279        def update_sql(self, expression: exp.Update) -> str:
280            this = self.sql(expression, "this")
281            from_sql = self.sql(expression, "from")
282            set_sql = self.expressions(expression, flat=True)
283            where_sql = self.sql(expression, "where")
284            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
285            return self.prepend_ctes(expression, sql)
286
287        def mod_sql(self, expression: exp.Mod) -> str:
288            return self.binary(expression, "MOD")
289
290        def datatype_sql(self, expression: exp.DataType) -> str:
291            type_sql = super().datatype_sql(expression)
292            prefix_sql = expression.args.get("prefix")
293            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
294
295        def rangen_sql(self, expression: exp.RangeN) -> str:
296            this = self.sql(expression, "this")
297            expressions_sql = self.expressions(expression)
298            each_sql = self.sql(expression, "each")
299            each_sql = f" EACH {each_sql}" if each_sql else ""
300
301            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
302
303        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
304            kind = self.sql(expression, "kind").upper()
305            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
306                this_name = self.sql(expression.this, "this")
307                this_properties = self.properties(
308                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
309                    wrapped=False,
310                    prefix=",",
311                )
312                this_schema = self.schema_columns_sql(expression.this)
313                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
314
315            return super().createable_sql(expression, locations)
316
317        def extract_sql(self, expression: exp.Extract) -> str:
318            this = self.sql(expression, "this")
319            if this.upper() != "QUARTER":
320                return super().extract_sql(expression)
321
322            to_char = exp.func("to_char", expression.expression, exp.Literal.string("Q"))
323            return self.sql(exp.cast(to_char, exp.DataType.Type.INT))
324
325        def interval_sql(self, expression: exp.Interval) -> str:
326            multiplier = 0
327            unit = expression.text("unit")
328
329            if unit.startswith("WEEK"):
330                multiplier = 7
331            elif unit.startswith("QUARTER"):
332                multiplier = 90
333
334            if multiplier:
335                return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})"
336
337            return super().interval_sql(expression)
SUPPORTS_SEMI_ANTI_JOIN = False

Whether SEMI or ANTI joins are supported.

TYPED_DIVISION = True

Whether the behavior of a / b depends on the types of a and b. False means a / b is always float division. True means a / b is integer division if both a and b are integers.

TIME_MAPPING: Dict[str, str] = {'YY': '%y', 'Y4': '%Y', 'YYYY': '%Y', 'M4': '%B', 'M3': '%b', 'M': '%-M', 'MI': '%M', 'MM': '%m', 'MMM': '%b', 'MMMM': '%B', 'D': '%-d', 'DD': '%d', 'D3': '%j', 'DDD': '%j', 'H': '%-H', 'HH': '%H', 'HH24': '%H', 'S': '%-S', 'SS': '%S', 'SSSSSS': '%f', 'E': '%a', 'EE': '%a', 'E3': '%a', 'E4': '%A', 'EEE': '%a', 'EEEE': '%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.

tokenizer_class = <class 'Teradata.Tokenizer'>
jsonpath_tokenizer_class = <class 'sqlglot.tokens.JSONPathTokenizer'>
parser_class = <class 'Teradata.Parser'>
generator_class = <class 'Teradata.Generator'>
TIME_TRIE: Dict = {'Y': {'Y': {0: True, 'Y': {'Y': {0: True}}}, '4': {0: True}}, 'M': {'4': {0: True}, '3': {0: True}, 0: True, 'I': {0: True}, 'M': {0: True, 'M': {0: True, 'M': {0: True}}}}, 'D': {0: True, 'D': {0: True, 'D': {0: True}}, '3': {0: True}}, 'H': {0: True, 'H': {0: True, '2': {'4': {0: True}}}}, 'S': {0: True, 'S': {0: True, 'S': {'S': {'S': {'S': {0: True}}}}}}, 'E': {0: True, 'E': {0: True, 'E': {0: True, 'E': {0: True}}}, '3': {0: True}, '4': {0: True}}}
FORMAT_TRIE: Dict = {'Y': {'Y': {0: True, 'Y': {'Y': {0: True}}}, '4': {0: True}}, 'M': {'4': {0: True}, '3': {0: True}, 0: True, 'I': {0: True}, 'M': {0: True, 'M': {0: True, 'M': {0: True}}}}, 'D': {0: True, 'D': {0: True, 'D': {0: True}}, '3': {0: True}}, 'H': {0: True, 'H': {0: True, '2': {'4': {0: True}}}}, 'S': {0: True, 'S': {0: True, 'S': {'S': {'S': {'S': {0: True}}}}}}, 'E': {0: True, 'E': {0: True, 'E': {0: True, 'E': {0: True}}}, '3': {0: True}, '4': {0: True}}}
INVERSE_TIME_MAPPING: Dict[str, str] = {'%y': 'YY', '%Y': 'YYYY', '%B': 'MMMM', '%b': 'MMM', '%-M': 'M', '%M': 'MI', '%m': 'MM', '%-d': 'D', '%d': 'DD', '%j': 'DDD', '%-H': 'H', '%H': 'HH24', '%-S': 'S', '%S': 'SS', '%f': 'SSSSSS', '%a': 'EEE', '%A': 'EEEE'}
INVERSE_TIME_TRIE: Dict = {'%': {'y': {0: True}, 'Y': {0: True}, 'B': {0: True}, 'b': {0: True}, '-': {'M': {0: True}, 'd': {0: True}, 'H': {0: True}, 'S': {0: True}}, 'M': {0: True}, 'm': {0: True}, 'd': {0: True}, 'j': {0: True}, 'H': {0: True}, 'S': {0: True}, 'f': {0: True}, 'a': {0: True}, 'A': {0: True}}}
ESCAPED_SEQUENCES: Dict[str, str] = {}
QUOTE_START = "'"
QUOTE_END = "'"
IDENTIFIER_START = '"'
IDENTIFIER_END = '"'
BIT_START: Optional[str] = None
BIT_END: Optional[str] = None
HEX_START: Optional[str] = None
HEX_END: Optional[str] = None
BYTE_START: Optional[str] = None
BYTE_END: Optional[str] = None
UNICODE_START: Optional[str] = None
UNICODE_END: Optional[str] = None
class Teradata.Tokenizer(sqlglot.tokens.Tokenizer):
 73    class Tokenizer(tokens.Tokenizer):
 74        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
 75        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
 76        KEYWORDS = {
 77            **tokens.Tokenizer.KEYWORDS,
 78            "**": TokenType.DSTAR,
 79            "^=": TokenType.NEQ,
 80            "BYTEINT": TokenType.SMALLINT,
 81            "COLLECT": TokenType.COMMAND,
 82            "DEL": TokenType.DELETE,
 83            "EQ": TokenType.EQ,
 84            "GE": TokenType.GTE,
 85            "GT": TokenType.GT,
 86            "HELP": TokenType.COMMAND,
 87            "INS": TokenType.INSERT,
 88            "LE": TokenType.LTE,
 89            "LT": TokenType.LT,
 90            "MINUS": TokenType.EXCEPT,
 91            "MOD": TokenType.MOD,
 92            "NE": TokenType.NEQ,
 93            "NOT=": TokenType.NEQ,
 94            "SAMPLE": TokenType.TABLE_SAMPLE,
 95            "SEL": TokenType.SELECT,
 96            "ST_GEOMETRY": TokenType.GEOMETRY,
 97            "TOP": TokenType.TOP,
 98            "UPD": TokenType.UPDATE,
 99        }
100
101        # Teradata does not support % as a modulo operator
102        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
103        SINGLE_TOKENS.pop("%")
KEYWORDS = {'{%': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{%-': <TokenType.BLOCK_START: 'BLOCK_START'>, '%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '+%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-%}': <TokenType.BLOCK_END: 'BLOCK_END'>, '{{+': <TokenType.BLOCK_START: 'BLOCK_START'>, '{{-': <TokenType.BLOCK_START: 'BLOCK_START'>, '+}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '-}}': <TokenType.BLOCK_END: 'BLOCK_END'>, '/*+': <TokenType.HINT: 'HINT'>, '==': <TokenType.EQ: 'EQ'>, '::': <TokenType.DCOLON: 'DCOLON'>, '||': <TokenType.DPIPE: 'DPIPE'>, '>=': <TokenType.GTE: 'GTE'>, '<=': <TokenType.LTE: 'LTE'>, '<>': <TokenType.NEQ: 'NEQ'>, '!=': <TokenType.NEQ: 'NEQ'>, ':=': <TokenType.COLON_EQ: 'COLON_EQ'>, '<=>': <TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>, '->': <TokenType.ARROW: 'ARROW'>, '->>': <TokenType.DARROW: 'DARROW'>, '=>': <TokenType.FARROW: 'FARROW'>, '#>': <TokenType.HASH_ARROW: 'HASH_ARROW'>, '#>>': <TokenType.DHASH_ARROW: 'DHASH_ARROW'>, '<->': <TokenType.LR_ARROW: 'LR_ARROW'>, '&&': <TokenType.DAMP: 'DAMP'>, '??': <TokenType.DQMARK: 'DQMARK'>, 'ALL': <TokenType.ALL: 'ALL'>, 'ALWAYS': <TokenType.ALWAYS: 'ALWAYS'>, 'AND': <TokenType.AND: 'AND'>, 'ANTI': <TokenType.ANTI: 'ANTI'>, 'ANY': <TokenType.ANY: 'ANY'>, 'ASC': <TokenType.ASC: 'ASC'>, 'AS': <TokenType.ALIAS: 'ALIAS'>, 'ASOF': <TokenType.ASOF: 'ASOF'>, 'AUTOINCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'AUTO_INCREMENT': <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, 'BEGIN': <TokenType.BEGIN: 'BEGIN'>, 'BETWEEN': <TokenType.BETWEEN: 'BETWEEN'>, 'CACHE': <TokenType.CACHE: 'CACHE'>, 'UNCACHE': <TokenType.UNCACHE: 'UNCACHE'>, 'CASE': <TokenType.CASE: 'CASE'>, 'CHARACTER SET': <TokenType.CHARACTER_SET: 'CHARACTER_SET'>, 'CLUSTER BY': <TokenType.CLUSTER_BY: 'CLUSTER_BY'>, 'COLLATE': <TokenType.COLLATE: 'COLLATE'>, 'COLUMN': <TokenType.COLUMN: 'COLUMN'>, 'COMMIT': <TokenType.COMMIT: 'COMMIT'>, 'CONNECT BY': <TokenType.CONNECT_BY: 'CONNECT_BY'>, 'CONSTRAINT': <TokenType.CONSTRAINT: 'CONSTRAINT'>, 'COPY': <TokenType.COPY: 'COPY'>, 'CREATE': <TokenType.CREATE: 'CREATE'>, 'CROSS': <TokenType.CROSS: 'CROSS'>, 'CUBE': <TokenType.CUBE: 'CUBE'>, 'CURRENT_DATE': <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, 'CURRENT_TIME': <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, 'CURRENT_TIMESTAMP': <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, 'CURRENT_USER': <TokenType.CURRENT_USER: 'CURRENT_USER'>, 'DATABASE': <TokenType.DATABASE: 'DATABASE'>, 'DEFAULT': <TokenType.DEFAULT: 'DEFAULT'>, 'DELETE': <TokenType.DELETE: 'DELETE'>, 'DESC': <TokenType.DESC: 'DESC'>, 'DESCRIBE': <TokenType.DESCRIBE: 'DESCRIBE'>, 'DISTINCT': <TokenType.DISTINCT: 'DISTINCT'>, 'DISTRIBUTE BY': <TokenType.DISTRIBUTE_BY: 'DISTRIBUTE_BY'>, 'DIV': <TokenType.DIV: 'DIV'>, 'DROP': <TokenType.DROP: 'DROP'>, 'ELSE': <TokenType.ELSE: 'ELSE'>, 'END': <TokenType.END: 'END'>, 'ENUM': <TokenType.ENUM: 'ENUM'>, 'ESCAPE': <TokenType.ESCAPE: 'ESCAPE'>, 'EXCEPT': <TokenType.EXCEPT: 'EXCEPT'>, 'EXECUTE': <TokenType.EXECUTE: 'EXECUTE'>, 'EXISTS': <TokenType.EXISTS: 'EXISTS'>, 'FALSE': <TokenType.FALSE: 'FALSE'>, 'FETCH': <TokenType.FETCH: 'FETCH'>, 'FILTER': <TokenType.FILTER: 'FILTER'>, 'FIRST': <TokenType.FIRST: 'FIRST'>, 'FULL': <TokenType.FULL: 'FULL'>, 'FUNCTION': <TokenType.FUNCTION: 'FUNCTION'>, 'FOR': <TokenType.FOR: 'FOR'>, 'FOREIGN KEY': <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, 'FORMAT': <TokenType.FORMAT: 'FORMAT'>, 'FROM': <TokenType.FROM: 'FROM'>, 'GEOGRAPHY': <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, 'GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'GLOB': <TokenType.GLOB: 'GLOB'>, 'GROUP BY': <TokenType.GROUP_BY: 'GROUP_BY'>, 'GROUPING SETS': <TokenType.GROUPING_SETS: 'GROUPING_SETS'>, 'HAVING': <TokenType.HAVING: 'HAVING'>, 'ILIKE': <TokenType.ILIKE: 'ILIKE'>, 'IN': <TokenType.IN: 'IN'>, 'INDEX': <TokenType.INDEX: 'INDEX'>, 'INET': <TokenType.INET: 'INET'>, 'INNER': <TokenType.INNER: 'INNER'>, 'INSERT': <TokenType.INSERT: 'INSERT'>, 'INTERVAL': <TokenType.INTERVAL: 'INTERVAL'>, 'INTERSECT': <TokenType.INTERSECT: 'INTERSECT'>, 'INTO': <TokenType.INTO: 'INTO'>, 'IS': <TokenType.IS: 'IS'>, 'ISNULL': <TokenType.ISNULL: 'ISNULL'>, 'JOIN': <TokenType.JOIN: 'JOIN'>, 'KEEP': <TokenType.KEEP: 'KEEP'>, 'KILL': <TokenType.KILL: 'KILL'>, 'LATERAL': <TokenType.LATERAL: 'LATERAL'>, 'LEFT': <TokenType.LEFT: 'LEFT'>, 'LIKE': <TokenType.LIKE: 'LIKE'>, 'LIMIT': <TokenType.LIMIT: 'LIMIT'>, 'LOAD': <TokenType.LOAD: 'LOAD'>, 'LOCK': <TokenType.LOCK: 'LOCK'>, 'MERGE': <TokenType.MERGE: 'MERGE'>, 'NATURAL': <TokenType.NATURAL: 'NATURAL'>, 'NEXT': <TokenType.NEXT: 'NEXT'>, 'NOT': <TokenType.NOT: 'NOT'>, 'NOTNULL': <TokenType.NOTNULL: 'NOTNULL'>, 'NULL': <TokenType.NULL: 'NULL'>, 'OBJECT': <TokenType.OBJECT: 'OBJECT'>, 'OFFSET': <TokenType.OFFSET: 'OFFSET'>, 'ON': <TokenType.ON: 'ON'>, 'OR': <TokenType.OR: 'OR'>, 'XOR': <TokenType.XOR: 'XOR'>, 'ORDER BY': <TokenType.ORDER_BY: 'ORDER_BY'>, 'ORDINALITY': <TokenType.ORDINALITY: 'ORDINALITY'>, 'OUTER': <TokenType.OUTER: 'OUTER'>, 'OVER': <TokenType.OVER: 'OVER'>, 'OVERLAPS': <TokenType.OVERLAPS: 'OVERLAPS'>, 'OVERWRITE': <TokenType.OVERWRITE: 'OVERWRITE'>, 'PARTITION': <TokenType.PARTITION: 'PARTITION'>, 'PARTITION BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PARTITIONED_BY': <TokenType.PARTITION_BY: 'PARTITION_BY'>, 'PERCENT': <TokenType.PERCENT: 'PERCENT'>, 'PIVOT': <TokenType.PIVOT: 'PIVOT'>, 'PRAGMA': <TokenType.PRAGMA: 'PRAGMA'>, 'PRIMARY KEY': <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, 'PROCEDURE': <TokenType.PROCEDURE: 'PROCEDURE'>, 'QUALIFY': <TokenType.QUALIFY: 'QUALIFY'>, 'RANGE': <TokenType.RANGE: 'RANGE'>, 'RECURSIVE': <TokenType.RECURSIVE: 'RECURSIVE'>, 'REGEXP': <TokenType.RLIKE: 'RLIKE'>, 'REPLACE': <TokenType.REPLACE: 'REPLACE'>, 'RETURNING': <TokenType.RETURNING: 'RETURNING'>, 'REFERENCES': <TokenType.REFERENCES: 'REFERENCES'>, 'RIGHT': <TokenType.RIGHT: 'RIGHT'>, 'RLIKE': <TokenType.RLIKE: 'RLIKE'>, 'ROLLBACK': <TokenType.ROLLBACK: 'ROLLBACK'>, 'ROLLUP': <TokenType.ROLLUP: 'ROLLUP'>, 'ROW': <TokenType.ROW: 'ROW'>, 'ROWS': <TokenType.ROWS: 'ROWS'>, 'SCHEMA': <TokenType.SCHEMA: 'SCHEMA'>, 'SELECT': <TokenType.SELECT: 'SELECT'>, 'SEMI': <TokenType.SEMI: 'SEMI'>, 'SET': <TokenType.SET: 'SET'>, 'SETTINGS': <TokenType.SETTINGS: 'SETTINGS'>, 'SHOW': <TokenType.SHOW: 'SHOW'>, 'SIMILAR TO': <TokenType.SIMILAR_TO: 'SIMILAR_TO'>, 'SOME': <TokenType.SOME: 'SOME'>, 'SORT BY': <TokenType.SORT_BY: 'SORT_BY'>, 'START WITH': <TokenType.START_WITH: 'START_WITH'>, 'STRAIGHT_JOIN': <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, 'TABLE': <TokenType.TABLE: 'TABLE'>, 'TABLESAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'TEMP': <TokenType.TEMPORARY: 'TEMPORARY'>, 'TEMPORARY': <TokenType.TEMPORARY: 'TEMPORARY'>, 'THEN': <TokenType.THEN: 'THEN'>, 'TRUE': <TokenType.TRUE: 'TRUE'>, 'TRUNCATE': <TokenType.TRUNCATE: 'TRUNCATE'>, 'UNION': <TokenType.UNION: 'UNION'>, 'UNKNOWN': <TokenType.UNKNOWN: 'UNKNOWN'>, 'UNNEST': <TokenType.UNNEST: 'UNNEST'>, 'UNPIVOT': <TokenType.UNPIVOT: 'UNPIVOT'>, 'UPDATE': <TokenType.UPDATE: 'UPDATE'>, 'USE': <TokenType.USE: 'USE'>, 'USING': <TokenType.USING: 'USING'>, 'UUID': <TokenType.UUID: 'UUID'>, 'VALUES': <TokenType.VALUES: 'VALUES'>, 'VIEW': <TokenType.VIEW: 'VIEW'>, 'VOLATILE': <TokenType.VOLATILE: 'VOLATILE'>, 'WHEN': <TokenType.WHEN: 'WHEN'>, 'WHERE': <TokenType.WHERE: 'WHERE'>, 'WINDOW': <TokenType.WINDOW: 'WINDOW'>, 'WITH': <TokenType.WITH: 'WITH'>, 'APPLY': <TokenType.APPLY: 'APPLY'>, 'ARRAY': <TokenType.ARRAY: 'ARRAY'>, 'BIT': <TokenType.BIT: 'BIT'>, 'BOOL': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BOOLEAN': <TokenType.BOOLEAN: 'BOOLEAN'>, 'BYTE': <TokenType.TINYINT: 'TINYINT'>, 'MEDIUMINT': <TokenType.MEDIUMINT: 'MEDIUMINT'>, 'INT1': <TokenType.TINYINT: 'TINYINT'>, 'TINYINT': <TokenType.TINYINT: 'TINYINT'>, 'INT16': <TokenType.SMALLINT: 'SMALLINT'>, 'SHORT': <TokenType.SMALLINT: 'SMALLINT'>, 'SMALLINT': <TokenType.SMALLINT: 'SMALLINT'>, 'INT128': <TokenType.INT128: 'INT128'>, 'HUGEINT': <TokenType.INT128: 'INT128'>, 'INT2': <TokenType.SMALLINT: 'SMALLINT'>, 'INTEGER': <TokenType.INT: 'INT'>, 'INT': <TokenType.INT: 'INT'>, 'INT4': <TokenType.INT: 'INT'>, 'INT32': <TokenType.INT: 'INT'>, 'INT64': <TokenType.BIGINT: 'BIGINT'>, 'LONG': <TokenType.BIGINT: 'BIGINT'>, 'BIGINT': <TokenType.BIGINT: 'BIGINT'>, 'INT8': <TokenType.TINYINT: 'TINYINT'>, 'UINT': <TokenType.UINT: 'UINT'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'LIST': <TokenType.LIST: 'LIST'>, 'MAP': <TokenType.MAP: 'MAP'>, 'NULLABLE': <TokenType.NULLABLE: 'NULLABLE'>, 'NUMBER': <TokenType.DECIMAL: 'DECIMAL'>, 'NUMERIC': <TokenType.DECIMAL: 'DECIMAL'>, 'FIXED': <TokenType.DECIMAL: 'DECIMAL'>, 'REAL': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT4': <TokenType.FLOAT: 'FLOAT'>, 'FLOAT8': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE': <TokenType.DOUBLE: 'DOUBLE'>, 'DOUBLE PRECISION': <TokenType.DOUBLE: 'DOUBLE'>, 'JSON': <TokenType.JSON: 'JSON'>, 'JSONB': <TokenType.JSONB: 'JSONB'>, 'CHAR': <TokenType.CHAR: 'CHAR'>, 'CHARACTER': <TokenType.CHAR: 'CHAR'>, 'NCHAR': <TokenType.NCHAR: 'NCHAR'>, 'VARCHAR': <TokenType.VARCHAR: 'VARCHAR'>, 'VARCHAR2': <TokenType.VARCHAR: 'VARCHAR'>, 'NVARCHAR': <TokenType.NVARCHAR: 'NVARCHAR'>, 'NVARCHAR2': <TokenType.NVARCHAR: 'NVARCHAR'>, 'BPCHAR': <TokenType.BPCHAR: 'BPCHAR'>, 'STR': <TokenType.TEXT: 'TEXT'>, 'STRING': <TokenType.TEXT: 'TEXT'>, 'TEXT': <TokenType.TEXT: 'TEXT'>, 'LONGTEXT': <TokenType.LONGTEXT: 'LONGTEXT'>, 'MEDIUMTEXT': <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, 'TINYTEXT': <TokenType.TINYTEXT: 'TINYTEXT'>, 'CLOB': <TokenType.TEXT: 'TEXT'>, 'LONGVARCHAR': <TokenType.TEXT: 'TEXT'>, 'BINARY': <TokenType.BINARY: 'BINARY'>, 'BLOB': <TokenType.VARBINARY: 'VARBINARY'>, 'LONGBLOB': <TokenType.LONGBLOB: 'LONGBLOB'>, 'MEDIUMBLOB': <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, 'TINYBLOB': <TokenType.TINYBLOB: 'TINYBLOB'>, 'BYTEA': <TokenType.VARBINARY: 'VARBINARY'>, 'VARBINARY': <TokenType.VARBINARY: 'VARBINARY'>, 'TIME': <TokenType.TIME: 'TIME'>, 'TIMETZ': <TokenType.TIMETZ: 'TIMETZ'>, 'TIMESTAMP': <TokenType.TIMESTAMP: 'TIMESTAMP'>, 'TIMESTAMPTZ': <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, 'TIMESTAMPLTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMP_LTZ': <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, 'TIMESTAMPNTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'TIMESTAMP_NTZ': <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, 'DATE': <TokenType.DATE: 'DATE'>, 'DATETIME': <TokenType.DATETIME: 'DATETIME'>, 'INT4RANGE': <TokenType.INT4RANGE: 'INT4RANGE'>, 'INT4MULTIRANGE': <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, 'INT8RANGE': <TokenType.INT8RANGE: 'INT8RANGE'>, 'INT8MULTIRANGE': <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, 'NUMRANGE': <TokenType.NUMRANGE: 'NUMRANGE'>, 'NUMMULTIRANGE': <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, 'TSRANGE': <TokenType.TSRANGE: 'TSRANGE'>, 'TSMULTIRANGE': <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, 'TSTZRANGE': <TokenType.TSTZRANGE: 'TSTZRANGE'>, 'TSTZMULTIRANGE': <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, 'DATERANGE': <TokenType.DATERANGE: 'DATERANGE'>, 'DATEMULTIRANGE': <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, 'UNIQUE': <TokenType.UNIQUE: 'UNIQUE'>, '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'>, '**': <TokenType.DSTAR: 'DSTAR'>, '^=': <TokenType.NEQ: 'NEQ'>, 'BYTEINT': <TokenType.SMALLINT: 'SMALLINT'>, 'COLLECT': <TokenType.COMMAND: 'COMMAND'>, 'DEL': <TokenType.DELETE: 'DELETE'>, 'EQ': <TokenType.EQ: 'EQ'>, 'GE': <TokenType.GTE: 'GTE'>, 'GT': <TokenType.GT: 'GT'>, 'HELP': <TokenType.COMMAND: 'COMMAND'>, 'INS': <TokenType.INSERT: 'INSERT'>, 'LE': <TokenType.LTE: 'LTE'>, 'LT': <TokenType.LT: 'LT'>, 'MINUS': <TokenType.EXCEPT: 'EXCEPT'>, 'MOD': <TokenType.MOD: 'MOD'>, 'NE': <TokenType.NEQ: 'NEQ'>, 'NOT=': <TokenType.NEQ: 'NEQ'>, 'SAMPLE': <TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>, 'SEL': <TokenType.SELECT: 'SELECT'>, 'ST_GEOMETRY': <TokenType.GEOMETRY: 'GEOMETRY'>, 'TOP': <TokenType.TOP: 'TOP'>, 'UPD': <TokenType.UPDATE: 'UPDATE'>}
SINGLE_TOKENS = {'(': <TokenType.L_PAREN: 'L_PAREN'>, ')': <TokenType.R_PAREN: 'R_PAREN'>, '[': <TokenType.L_BRACKET: 'L_BRACKET'>, ']': <TokenType.R_BRACKET: 'R_BRACKET'>, '{': <TokenType.L_BRACE: 'L_BRACE'>, '}': <TokenType.R_BRACE: 'R_BRACE'>, '&': <TokenType.AMP: 'AMP'>, '^': <TokenType.CARET: 'CARET'>, ':': <TokenType.COLON: 'COLON'>, ',': <TokenType.COMMA: 'COMMA'>, '.': <TokenType.DOT: 'DOT'>, '-': <TokenType.DASH: 'DASH'>, '=': <TokenType.EQ: 'EQ'>, '>': <TokenType.GT: 'GT'>, '<': <TokenType.LT: 'LT'>, '!': <TokenType.NOT: 'NOT'>, '|': <TokenType.PIPE: 'PIPE'>, '+': <TokenType.PLUS: 'PLUS'>, ';': <TokenType.SEMICOLON: 'SEMICOLON'>, '/': <TokenType.SLASH: 'SLASH'>, '\\': <TokenType.BACKSLASH: 'BACKSLASH'>, '*': <TokenType.STAR: 'STAR'>, '~': <TokenType.TILDA: 'TILDA'>, '?': <TokenType.PLACEHOLDER: 'PLACEHOLDER'>, '@': <TokenType.PARAMETER: 'PARAMETER'>, '#': <TokenType.HASH: 'HASH'>, "'": <TokenType.UNKNOWN: 'UNKNOWN'>, '`': <TokenType.UNKNOWN: 'UNKNOWN'>, '"': <TokenType.UNKNOWN: 'UNKNOWN'>}
class Teradata.Parser(sqlglot.parser.Parser):
105    class Parser(parser.Parser):
106        TABLESAMPLE_CSV = True
107        VALUES_FOLLOWED_BY_PAREN = False
108
109        CHARSET_TRANSLATORS = {
110            "GRAPHIC_TO_KANJISJIS",
111            "GRAPHIC_TO_LATIN",
112            "GRAPHIC_TO_UNICODE",
113            "GRAPHIC_TO_UNICODE_PadSpace",
114            "KANJI1_KanjiEBCDIC_TO_UNICODE",
115            "KANJI1_KanjiEUC_TO_UNICODE",
116            "KANJI1_KANJISJIS_TO_UNICODE",
117            "KANJI1_SBC_TO_UNICODE",
118            "KANJISJIS_TO_GRAPHIC",
119            "KANJISJIS_TO_LATIN",
120            "KANJISJIS_TO_UNICODE",
121            "LATIN_TO_GRAPHIC",
122            "LATIN_TO_KANJISJIS",
123            "LATIN_TO_UNICODE",
124            "LOCALE_TO_UNICODE",
125            "UNICODE_TO_GRAPHIC",
126            "UNICODE_TO_GRAPHIC_PadGraphic",
127            "UNICODE_TO_GRAPHIC_VarGraphic",
128            "UNICODE_TO_KANJI1_KanjiEBCDIC",
129            "UNICODE_TO_KANJI1_KanjiEUC",
130            "UNICODE_TO_KANJI1_KANJISJIS",
131            "UNICODE_TO_KANJI1_SBC",
132            "UNICODE_TO_KANJISJIS",
133            "UNICODE_TO_LATIN",
134            "UNICODE_TO_LOCALE",
135            "UNICODE_TO_UNICODE_FoldSpace",
136            "UNICODE_TO_UNICODE_Fullwidth",
137            "UNICODE_TO_UNICODE_Halfwidth",
138            "UNICODE_TO_UNICODE_NFC",
139            "UNICODE_TO_UNICODE_NFD",
140            "UNICODE_TO_UNICODE_NFKC",
141            "UNICODE_TO_UNICODE_NFKD",
142        }
143
144        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
145        FUNC_TOKENS.remove(TokenType.REPLACE)
146
147        STATEMENT_PARSERS = {
148            **parser.Parser.STATEMENT_PARSERS,
149            TokenType.DATABASE: lambda self: self.expression(
150                exp.Use, this=self._parse_table(schema=False)
151            ),
152            TokenType.REPLACE: lambda self: self._parse_create(),
153        }
154
155        FUNCTION_PARSERS = {
156            **parser.Parser.FUNCTION_PARSERS,
157            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
158            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
159            "RANGE_N": lambda self: self._parse_rangen(),
160            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
161        }
162
163        EXPONENT = {
164            TokenType.DSTAR: exp.Pow,
165        }
166
167        def _parse_translate(self, strict: bool) -> exp.Expression:
168            this = self._parse_assignment()
169
170            if not self._match(TokenType.USING):
171                self.raise_error("Expected USING in TRANSLATE")
172
173            if self._match_texts(self.CHARSET_TRANSLATORS):
174                charset_split = self._prev.text.split("_TO_")
175                to = self.expression(exp.CharacterSet, this=charset_split[1])
176            else:
177                self.raise_error("Expected a character set translator after USING in TRANSLATE")
178
179            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
180
181        # FROM before SET in Teradata UPDATE syntax
182        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
183        def _parse_update(self) -> exp.Update:
184            return self.expression(
185                exp.Update,
186                **{  # type: ignore
187                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
188                    "from": self._parse_from(joins=True),
189                    "expressions": self._match(TokenType.SET)
190                    and self._parse_csv(self._parse_equality),
191                    "where": self._parse_where(),
192                },
193            )
194
195        def _parse_rangen(self):
196            this = self._parse_id_var()
197            self._match(TokenType.BETWEEN)
198
199            expressions = self._parse_csv(self._parse_assignment)
200            each = self._match_text_seq("EACH") and self._parse_assignment()
201
202            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)
203
204        def _parse_index_params(self) -> exp.IndexParameters:
205            this = super()._parse_index_params()
206
207            if this.args.get("on"):
208                this.set("on", None)
209                self._retreat(self._index - 2)
210            return this

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
TABLESAMPLE_CSV = True
VALUES_FOLLOWED_BY_PAREN = False
CHARSET_TRANSLATORS = {'GRAPHIC_TO_UNICODE', 'UNICODE_TO_UNICODE_NFKD', 'UNICODE_TO_KANJISJIS', 'KANJI1_KanjiEBCDIC_TO_UNICODE', 'GRAPHIC_TO_KANJISJIS', 'GRAPHIC_TO_LATIN', 'UNICODE_TO_UNICODE_NFC', 'UNICODE_TO_LOCALE', 'UNICODE_TO_GRAPHIC_VarGraphic', 'UNICODE_TO_KANJI1_KANJISJIS', 'GRAPHIC_TO_UNICODE_PadSpace', 'LATIN_TO_KANJISJIS', 'UNICODE_TO_UNICODE_NFKC', 'LATIN_TO_GRAPHIC', 'UNICODE_TO_GRAPHIC', 'KANJISJIS_TO_LATIN', 'KANJISJIS_TO_GRAPHIC', 'LOCALE_TO_UNICODE', 'UNICODE_TO_KANJI1_SBC', 'UNICODE_TO_LATIN', 'UNICODE_TO_UNICODE_FoldSpace', 'UNICODE_TO_KANJI1_KanjiEUC', 'UNICODE_TO_UNICODE_Fullwidth', 'UNICODE_TO_KANJI1_KanjiEBCDIC', 'KANJI1_SBC_TO_UNICODE', 'UNICODE_TO_UNICODE_NFD', 'UNICODE_TO_GRAPHIC_PadGraphic', 'UNICODE_TO_UNICODE_Halfwidth', 'KANJISJIS_TO_UNICODE', 'KANJI1_KANJISJIS_TO_UNICODE', 'KANJI1_KanjiEUC_TO_UNICODE', 'LATIN_TO_UNICODE'}
FUNC_TOKENS = {<TokenType.SERIAL: 'SERIAL'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NESTED: 'NESTED'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.TABLE: 'TABLE'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.LIKE: 'LIKE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.BIT: 'BIT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.DATE32: 'DATE32'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIME: 'TIME'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.JSONB: 'JSONB'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.FIRST: 'FIRST'>, <TokenType.NULL: 'NULL'>, <TokenType.UINT: 'UINT'>, <TokenType.INET: 'INET'>, <TokenType.FILTER: 'FILTER'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.INT: 'INT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.VAR: 'VAR'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.TEXT: 'TEXT'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.ROW: 'ROW'>, <TokenType.NAME: 'NAME'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.ALL: 'ALL'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.XML: 'XML'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.ANY: 'ANY'>, <TokenType.MONEY: 'MONEY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.LIST: 'LIST'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.INT256: 'INT256'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.ENUM: 'ENUM'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.XOR: 'XOR'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.YEAR: 'YEAR'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.INT128: 'INT128'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.SOME: 'SOME'>, <TokenType.INSERT: 'INSERT'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.IPV4: 'IPV4'>, <TokenType.BINARY: 'BINARY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.CHAR: 'CHAR'>, <TokenType.GLOB: 'GLOB'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.LEFT: 'LEFT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.UUID: 'UUID'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.DATE: 'DATE'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>}
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.DATABASE: 'DATABASE'>: <function Teradata.Parser.<lambda>>, <TokenType.REPLACE: 'REPLACE'>: <function Teradata.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>>, 'TRYCAST': <function Parser.<lambda>>, 'RANGE_N': <function Teradata.Parser.<lambda>>, 'TRANSLATE': <function Teradata.Parser.<lambda>>}
EXPONENT = {<TokenType.DSTAR: 'DSTAR'>: <class 'sqlglot.expressions.Pow'>}
ID_VAR_TOKENS = {<TokenType.SERIAL: 'SERIAL'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.TABLE: 'TABLE'>, <TokenType.LOAD: 'LOAD'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.BIT: 'BIT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.DATE32: 'DATE32'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIME: 'TIME'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.CACHE: 'CACHE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.VIEW: 'VIEW'>, <TokenType.FALSE: 'FALSE'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.FIRST: 'FIRST'>, <TokenType.JSONB: 'JSONB'>, <TokenType.NULL: 'NULL'>, <TokenType.UINT: 'UINT'>, <TokenType.INET: 'INET'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.USE: 'USE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.INT: 'INT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.CASE: 'CASE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.DESC: 'DESC'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.KILL: 'KILL'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.FINAL: 'FINAL'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DELETE: 'DELETE'>, <TokenType.VAR: 'VAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.TEXT: 'TEXT'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.ROW: 'ROW'>, <TokenType.NAME: 'NAME'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.TRUE: 'TRUE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.ALL: 'ALL'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.ROWS: 'ROWS'>, <TokenType.XML: 'XML'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.NEXT: 'NEXT'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.ANY: 'ANY'>, <TokenType.MONEY: 'MONEY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.LIST: 'LIST'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.DATE: 'DATE'>, <TokenType.INT256: 'INT256'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TOP: 'TOP'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.FULL: 'FULL'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.ANTI: 'ANTI'>, <TokenType.COPY: 'COPY'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.YEAR: 'YEAR'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DIV: 'DIV'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.RANGE: 'RANGE'>, <TokenType.INT128: 'INT128'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.ASC: 'ASC'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.ASOF: 'ASOF'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SEMI: 'SEMI'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.NATURAL: 'NATURAL'>, <TokenType.TAG: 'TAG'>, <TokenType.SOME: 'SOME'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MODEL: 'MODEL'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.IPV4: 'IPV4'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.APPLY: 'APPLY'>, <TokenType.BINARY: 'BINARY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.SHOW: 'SHOW'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SET: 'SET'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.END: 'END'>, <TokenType.CHAR: 'CHAR'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.LEFT: 'LEFT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.INDEX: 'INDEX'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.UUID: 'UUID'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.IS: 'IS'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>}
TABLE_ALIAS_TOKENS = {<TokenType.SERIAL: 'SERIAL'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.MAP: 'MAP'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.TABLE: 'TABLE'>, <TokenType.LOAD: 'LOAD'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.TDIGEST: 'TDIGEST'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.BIT: 'BIT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.DATE32: 'DATE32'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TIME: 'TIME'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.SUPER: 'SUPER'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.CACHE: 'CACHE'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.VIEW: 'VIEW'>, <TokenType.FALSE: 'FALSE'>, <TokenType.JSONB: 'JSONB'>, <TokenType.FIRST: 'FIRST'>, <TokenType.NULL: 'NULL'>, <TokenType.UINT: 'UINT'>, <TokenType.INET: 'INET'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.FILTER: 'FILTER'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.USE: 'USE'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.INT: 'INT'>, <TokenType.IPV6: 'IPV6'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.CASE: 'CASE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.DESC: 'DESC'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.KILL: 'KILL'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.FINAL: 'FINAL'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.DELETE: 'DELETE'>, <TokenType.VAR: 'VAR'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.TEXT: 'TEXT'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.ROW: 'ROW'>, <TokenType.NAME: 'NAME'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.TRUE: 'TRUE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.WAREHOUSE: 'WAREHOUSE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.JSON: 'JSON'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.ALL: 'ALL'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.ROWS: 'ROWS'>, <TokenType.XML: 'XML'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.NEXT: 'NEXT'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.ANY: 'ANY'>, <TokenType.MONEY: 'MONEY'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.LIST: 'LIST'>, <TokenType.STREAMLIT: 'STREAMLIT'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.INT256: 'INT256'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TOP: 'TOP'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.SEQUENCE: 'SEQUENCE'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.ANTI: 'ANTI'>, <TokenType.COPY: 'COPY'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.YEAR: 'YEAR'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DIV: 'DIV'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.RANGE: 'RANGE'>, <TokenType.INT128: 'INT128'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.ASC: 'ASC'>, <TokenType.ROLLUP: 'ROLLUP'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.TIMESTAMPNTZ: 'TIMESTAMPNTZ'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.SEMI: 'SEMI'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.TAG: 'TAG'>, <TokenType.SOME: 'SOME'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.MODEL: 'MODEL'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.IPV4: 'IPV4'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.BINARY: 'BINARY'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.SHOW: 'SHOW'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.SET: 'SET'>, <TokenType.STRAIGHT_JOIN: 'STRAIGHT_JOIN'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.END: 'END'>, <TokenType.CHAR: 'CHAR'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.INDEX: 'INDEX'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.UUID: 'UUID'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.IS: 'IS'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.DATE: 'DATE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>}
SHOW_TRIE: Dict = {}
SET_TRIE: Dict = {'GLOBAL': {0: True}, 'LOCAL': {0: True}, 'SESSION': {0: True}, 'TRANSACTION': {0: True}}
Inherited Members
sqlglot.parser.Parser
Parser
FUNCTIONS
NO_PAREN_FUNCTIONS
STRUCT_TYPE_TOKENS
NESTED_TYPE_TOKENS
ENUM_TYPE_TOKENS
AGGREGATE_TYPE_TOKENS
TYPE_TOKENS
SIGNED_TO_UNSIGNED_TYPE_TOKEN
SUBQUERY_PREDICATES
RESERVED_TOKENS
DB_CREATABLES
CREATABLES
INTERVAL_VARS
ALIAS_TOKENS
ARRAY_CONSTRUCTORS
COMMENT_TABLE_ALIAS_TOKENS
UPDATE_ALIAS_TOKENS
TRIM_TYPES
CONJUNCTION
ASSIGNMENT
DISJUNCTION
EQUALITY
COMPARISON
BITWISE
TERM
FACTOR
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
RANGE_PARSERS
PROPERTY_PARSERS
CONSTRAINT_PARSERS
ALTER_PARSERS
ALTER_ALTER_PARSERS
SCHEMA_UNNAMED_CONSTRAINTS
NO_PAREN_FUNCTION_PARSERS
INVALID_FUNC_NAME_TOKENS
FUNCTIONS_WITH_ALIASED_ARGS
KEY_VALUE_DEFINITIONS
QUERY_MODIFIER_PARSERS
SET_PARSERS
SHOW_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
INSERT_ALTERNATIVES
CLONE_KEYWORDS
HISTORICAL_DATA_KIND
OPCLASS_FOLLOW_KEYWORDS
OPTYPE_FOLLOW_TOKENS
TABLE_INDEX_HINT_TOKENS
VIEW_ATTRIBUTES
WINDOW_ALIAS_TOKENS
WINDOW_BEFORE_PAREN_TOKENS
WINDOW_SIDES
JSON_KEY_VALUE_SEPARATOR_TOKENS
FETCH_TOKENS
ADD_CONSTRAINT_TOKENS
DISTINCT_TOKENS
NULL_TOKENS
UNNEST_OFFSET_ALIAS_TOKENS
SELECT_START_TOKENS
COPY_INTO_VARLEN_OPTIONS
STRICT_CAST
PREFIXED_PIVOT_COLUMNS
IDENTIFY_PIVOT_STRINGS
LOG_DEFAULTS_TO_LN
ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
DEFAULT_SAMPLING_METHOD
SET_REQUIRES_ASSIGNMENT_DELIMITER
TRIM_PATTERN_FIRST
STRING_ALIASES
MODIFIERS_ATTACHED_TO_SET_OP
SET_OP_MODIFIERS
NO_PAREN_IF_COMMANDS
JSON_ARROWS_REQUIRE_JSON_TYPE
COLON_IS_JSON_EXTRACT
SUPPORTS_IMPLICIT_UNNEST
INTERVAL_SPANS
SUPPORTS_PARTITION_SELECTION
error_level
error_message_context
max_errors
dialect
reset
parse
parse_into
check_errors
raise_error
expression
validate_expression
errors
sql
class Teradata.Generator(sqlglot.generator.Generator):
212    class Generator(generator.Generator):
213        LIMIT_IS_TOP = True
214        JOIN_HINTS = False
215        TABLE_HINTS = False
216        QUERY_HINTS = False
217        TABLESAMPLE_KEYWORDS = "SAMPLE"
218        LAST_DAY_SUPPORTS_DATE_PART = False
219        CAN_IMPLEMENT_ARRAY_ANY = True
220
221        TYPE_MAPPING = {
222            **generator.Generator.TYPE_MAPPING,
223            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
224            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
225        }
226
227        PROPERTIES_LOCATION = {
228            **generator.Generator.PROPERTIES_LOCATION,
229            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
230            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
231            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
232        }
233
234        TRANSFORMS = {
235            **generator.Generator.TRANSFORMS,
236            exp.ArgMax: rename_func("MAX_BY"),
237            exp.ArgMin: rename_func("MIN_BY"),
238            exp.ArraySize: rename_func("CARDINALITY"),
239            exp.Max: max_or_greatest,
240            exp.Min: min_or_least,
241            exp.Pow: lambda self, e: self.binary(e, "**"),
242            exp.Select: transforms.preprocess(
243                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
244            ),
245            exp.StrToDate: lambda self,
246            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
247            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
248            exp.ToNumber: to_number_with_nls_param,
249            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
250            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
251            exp.DateAdd: _date_add_sql("+"),
252            exp.DateSub: _date_add_sql("-"),
253            exp.Quarter: lambda self, e: self.sql(exp.Extract(this="QUARTER", expression=e.this)),
254        }
255
256        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
257            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
258                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
259                expression.to.pop()
260
261            return super().cast_sql(expression, safe_prefix=safe_prefix)
262
263        def trycast_sql(self, expression: exp.TryCast) -> str:
264            return self.cast_sql(expression, safe_prefix="TRY")
265
266        def tablesample_sql(
267            self,
268            expression: exp.TableSample,
269            sep: str = " AS ",
270            tablesample_keyword: t.Optional[str] = None,
271        ) -> str:
272            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
273
274        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
275            return f"PARTITION BY {self.sql(expression, 'this')}"
276
277        # FROM before SET in Teradata UPDATE syntax
278        # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause
279        def update_sql(self, expression: exp.Update) -> str:
280            this = self.sql(expression, "this")
281            from_sql = self.sql(expression, "from")
282            set_sql = self.expressions(expression, flat=True)
283            where_sql = self.sql(expression, "where")
284            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
285            return self.prepend_ctes(expression, sql)
286
287        def mod_sql(self, expression: exp.Mod) -> str:
288            return self.binary(expression, "MOD")
289
290        def datatype_sql(self, expression: exp.DataType) -> str:
291            type_sql = super().datatype_sql(expression)
292            prefix_sql = expression.args.get("prefix")
293            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
294
295        def rangen_sql(self, expression: exp.RangeN) -> str:
296            this = self.sql(expression, "this")
297            expressions_sql = self.expressions(expression)
298            each_sql = self.sql(expression, "each")
299            each_sql = f" EACH {each_sql}" if each_sql else ""
300
301            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
302
303        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
304            kind = self.sql(expression, "kind").upper()
305            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
306                this_name = self.sql(expression.this, "this")
307                this_properties = self.properties(
308                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
309                    wrapped=False,
310                    prefix=",",
311                )
312                this_schema = self.schema_columns_sql(expression.this)
313                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
314
315            return super().createable_sql(expression, locations)
316
317        def extract_sql(self, expression: exp.Extract) -> str:
318            this = self.sql(expression, "this")
319            if this.upper() != "QUARTER":
320                return super().extract_sql(expression)
321
322            to_char = exp.func("to_char", expression.expression, exp.Literal.string("Q"))
323            return self.sql(exp.cast(to_char, exp.DataType.Type.INT))
324
325        def interval_sql(self, expression: exp.Interval) -> str:
326            multiplier = 0
327            unit = expression.text("unit")
328
329            if unit.startswith("WEEK"):
330                multiplier = 7
331            elif unit.startswith("QUARTER"):
332                multiplier = 90
333
334            if multiplier:
335                return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})"
336
337            return super().interval_sql(expression)

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
LIMIT_IS_TOP = True
JOIN_HINTS = False
TABLE_HINTS = False
QUERY_HINTS = False
TABLESAMPLE_KEYWORDS = 'SAMPLE'
LAST_DAY_SUPPORTS_DATE_PART = False
CAN_IMPLEMENT_ARRAY_ANY = True
TYPE_MAPPING = {<Type.NCHAR: 'NCHAR'>: 'CHAR', <Type.NVARCHAR: 'NVARCHAR'>: 'VARCHAR', <Type.MEDIUMTEXT: 'MEDIUMTEXT'>: 'TEXT', <Type.LONGTEXT: 'LONGTEXT'>: 'TEXT', <Type.TINYTEXT: 'TINYTEXT'>: 'TEXT', <Type.MEDIUMBLOB: 'MEDIUMBLOB'>: 'BLOB', <Type.LONGBLOB: 'LONGBLOB'>: 'BLOB', <Type.TINYBLOB: 'TINYBLOB'>: 'BLOB', <Type.INET: 'INET'>: 'INET', <Type.ROWVERSION: 'ROWVERSION'>: 'VARBINARY', <Type.GEOMETRY: 'GEOMETRY'>: 'ST_GEOMETRY', <Type.DOUBLE: 'DOUBLE'>: 'DOUBLE PRECISION'}
PROPERTIES_LOCATION = {<class 'sqlglot.expressions.AllowedValuesProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AlgorithmProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.AutoIncrementProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BackupProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.BlockCompressionProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CharacterSetProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ChecksumProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.CollateProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.Cluster'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ClusteredByProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DataBlocksizeProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.DataDeletionProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DefinerProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.DictRange'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DictProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistKeyProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.DistStyleProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.EngineProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.ExternalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.FallbackProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.FileFormatProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.FreespaceProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.GlobalProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IcebergProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_INDEX: 'POST_INDEX'>, <class 'sqlglot.expressions.Order'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OutputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.PartitionedByProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <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_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.POST_CREATE: 'POST_CREATE'>, <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.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.WithDataProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.WithSystemVersioningProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>}
TRANSFORMS = {<class 'sqlglot.expressions.JSONPathFilter'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathKey'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRecursive'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathRoot'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathScript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSelector'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSlice'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathSubscript'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathUnion'>: <function <lambda>>, <class 'sqlglot.expressions.JSONPathWildcard'>: <function <lambda>>, <class 'sqlglot.expressions.AllowedValuesProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.AutoRefreshProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.BackupProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CaseSpecificColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CharacterSetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ClusteredColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CollateColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CommentColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.CopyGrantsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DateFormatColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.DefaultColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EncodeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.EphemeralColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExcludeColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.GlobalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IcebergProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InheritsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InlineLengthColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.InputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.IntervalSpan'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtract'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.JSONExtractScalar'>: <function 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.OutputModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.PathColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ProjectionPolicyColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SecureProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetConfigProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SetProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SettingsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SharingProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StrictProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TagColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ToTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransformModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TransientProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UppercaseColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.UnloggedProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ViewAttributeProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithOperator'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ArgMax'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArgMin'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.ArraySize'>: <function rename_func.<locals>.<lambda>>, <class 'sqlglot.expressions.Max'>: <function max_or_greatest>, <class 'sqlglot.expressions.Min'>: <function min_or_least>, <class 'sqlglot.expressions.Pow'>: <function Teradata.Generator.<lambda>>, <class 'sqlglot.expressions.Select'>: <function preprocess.<locals>._to_sql>, <class 'sqlglot.expressions.StrToDate'>: <function Teradata.Generator.<lambda>>, <class 'sqlglot.expressions.ToChar'>: <function Teradata.Generator.<lambda>>, <class 'sqlglot.expressions.ToNumber'>: <function to_number_with_nls_param>, <class 'sqlglot.expressions.Use'>: <function Teradata.Generator.<lambda>>, <class 'sqlglot.expressions.CurrentTimestamp'>: <function Teradata.Generator.<lambda>>, <class 'sqlglot.expressions.DateAdd'>: <function _date_add_sql.<locals>.func>, <class 'sqlglot.expressions.DateSub'>: <function _date_add_sql.<locals>.func>, <class 'sqlglot.expressions.Quarter'>: <function Teradata.Generator.<lambda>>}
def cast_sql( self, expression: sqlglot.expressions.Cast, safe_prefix: Optional[str] = None) -> str:
256        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
257            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
258                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
259                expression.to.pop()
260
261            return super().cast_sql(expression, safe_prefix=safe_prefix)
def trycast_sql(self, expression: sqlglot.expressions.TryCast) -> str:
263        def trycast_sql(self, expression: exp.TryCast) -> str:
264            return self.cast_sql(expression, safe_prefix="TRY")
def tablesample_sql( self, expression: sqlglot.expressions.TableSample, sep: str = ' AS ', tablesample_keyword: Optional[str] = None) -> str:
266        def tablesample_sql(
267            self,
268            expression: exp.TableSample,
269            sep: str = " AS ",
270            tablesample_keyword: t.Optional[str] = None,
271        ) -> str:
272            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
def partitionedbyproperty_sql(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:
274        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
275            return f"PARTITION BY {self.sql(expression, 'this')}"
def update_sql(self, expression: sqlglot.expressions.Update) -> str:
279        def update_sql(self, expression: exp.Update) -> str:
280            this = self.sql(expression, "this")
281            from_sql = self.sql(expression, "from")
282            set_sql = self.expressions(expression, flat=True)
283            where_sql = self.sql(expression, "where")
284            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
285            return self.prepend_ctes(expression, sql)
def mod_sql(self, expression: sqlglot.expressions.Mod) -> str:
287        def mod_sql(self, expression: exp.Mod) -> str:
288            return self.binary(expression, "MOD")
def datatype_sql(self, expression: sqlglot.expressions.DataType) -> str:
290        def datatype_sql(self, expression: exp.DataType) -> str:
291            type_sql = super().datatype_sql(expression)
292            prefix_sql = expression.args.get("prefix")
293            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
def rangen_sql(self, expression: sqlglot.expressions.RangeN) -> str:
295        def rangen_sql(self, expression: exp.RangeN) -> str:
296            this = self.sql(expression, "this")
297            expressions_sql = self.expressions(expression)
298            each_sql = self.sql(expression, "each")
299            each_sql = f" EACH {each_sql}" if each_sql else ""
300
301            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
def createable_sql( self, expression: sqlglot.expressions.Create, locations: DefaultDict) -> str:
303        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
304            kind = self.sql(expression, "kind").upper()
305            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
306                this_name = self.sql(expression.this, "this")
307                this_properties = self.properties(
308                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
309                    wrapped=False,
310                    prefix=",",
311                )
312                this_schema = self.schema_columns_sql(expression.this)
313                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
314
315            return super().createable_sql(expression, locations)
def extract_sql(self, expression: sqlglot.expressions.Extract) -> str:
317        def extract_sql(self, expression: exp.Extract) -> str:
318            this = self.sql(expression, "this")
319            if this.upper() != "QUARTER":
320                return super().extract_sql(expression)
321
322            to_char = exp.func("to_char", expression.expression, exp.Literal.string("Q"))
323            return self.sql(exp.cast(to_char, exp.DataType.Type.INT))
def interval_sql(self, expression: sqlglot.expressions.Interval) -> str:
325        def interval_sql(self, expression: exp.Interval) -> str:
326            multiplier = 0
327            unit = expression.text("unit")
328
329            if unit.startswith("WEEK"):
330                multiplier = 7
331            elif unit.startswith("QUARTER"):
332                multiplier = 90
333
334            if multiplier:
335                return f"({multiplier} * {super().interval_sql(exp.Interval(this=expression.this, unit=exp.var('DAY')))})"
336
337            return super().interval_sql(expression)
SELECT_KINDS: Tuple[str, ...] = ()
TRY_SUPPORTED = False
SUPPORTS_UESCAPE = False
AFTER_HAVING_MODIFIER_TRANSFORMS = {'qualify': <function Generator.<lambda>>, 'windows': <function Generator.<lambda>>}
Inherited Members
sqlglot.generator.Generator
Generator
NULL_ORDERING_SUPPORTED
IGNORE_NULLS_IN_FUNC
LOCKING_READS_SUPPORTED
EXPLICIT_SET_OP
WRAP_DERIVED_VALUES
CREATE_FUNCTION_RETURN_AS
MATCHED_BY_SOURCE
SINGLE_STRING_INTERVAL
INTERVAL_ALLOWS_PLURAL_FORM
LIMIT_FETCH
LIMIT_ONLY_LITERALS
RENAME_TABLE_WITH_DB
GROUPINGS_SEP
INDEX_ON
QUERY_HINT_SEP
IS_BOOL_ALLOWED
DUPLICATE_KEY_UPDATE_WITH_SET
RETURNING_END
EXTRACT_ALLOWS_QUOTES
TZ_TO_WITH_TIME_ZONE
NVL2_SUPPORTED
VALUES_AS_TABLE
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_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
JSON_KEY_VALUE_PAIR_SEP
INSERT_OVERWRITE
SUPPORTS_SELECT_INTO
SUPPORTS_UNLOGGED_TABLES
SUPPORTS_CREATE_TABLE_LIKE
LIKE_PROPERTY_INSIDE_SCHEMA
MULTI_ARG_DISTINCT
JSON_TYPE_REQUIRED_FOR_EXTRACTION
JSON_PATH_BRACKETED_KEY_SUPPORTED
JSON_PATH_SINGLE_QUOTE_ESCAPE
SUPPORTED_JSON_PATH_PARTS
SUPPORTS_TO_NUMBER
SET_OP_MODIFIERS
COPY_PARAMS_ARE_WRAPPED
COPY_PARAMS_EQ_REQUIRED
COPY_HAS_INTO_KEYWORD
STAR_EXCEPT
HEX_FUNC
WITH_PROPERTIES_PREFIX
QUOTE_JSON_PATH
TIME_PART_SINGULARS
TOKEN_MAPPING
STRUCT_DELIMITER
PARAMETER_TOKEN
NAMED_PLACEHOLDER_TOKEN
RESERVED_KEYWORDS
WITH_SEPARATED_COMMENTS
EXCLUDE_COMMENTS
UNWRAPPED_INTERVAL_VALUES
PARAMETERIZABLE_TEXT_TYPES
EXPRESSIONS_WITHOUT_NESTED_CTES
SENTINEL_LINE_BREAK
pretty
identify
normalize
pad
unsupported_level
max_unsupported
leading_comma
max_text_width
comments
dialect
normalize_functions
unsupported_messages
generate
preprocess
unsupported
sep
seg
pad_comment
maybe_comment
wrap
no_identify
normalize_func
indent
sql
uncache_sql
cache_sql
characterset_sql
column_parts
column_sql
columnposition_sql
columndef_sql
columnconstraint_sql
computedcolumnconstraint_sql
autoincrementcolumnconstraint_sql
compresscolumnconstraint_sql
generatedasidentitycolumnconstraint_sql
generatedasrowcolumnconstraint_sql
periodforsystemtimeconstraint_sql
notnullcolumnconstraint_sql
transformcolumnconstraint_sql
primarykeycolumnconstraint_sql
uniquecolumnconstraint_sql
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
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