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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 Dialect, max_or_greatest, min_or_least, rename_func
  7from sqlglot.tokens import TokenType
  8
  9
 10class Teradata(Dialect):
 11    SUPPORTS_SEMI_ANTI_JOIN = False
 12    TYPED_DIVISION = True
 13
 14    TIME_MAPPING = {
 15        "YY": "%y",
 16        "Y4": "%Y",
 17        "YYYY": "%Y",
 18        "M4": "%B",
 19        "M3": "%b",
 20        "M": "%-M",
 21        "MI": "%M",
 22        "MM": "%m",
 23        "MMM": "%b",
 24        "MMMM": "%B",
 25        "D": "%-d",
 26        "DD": "%d",
 27        "D3": "%j",
 28        "DDD": "%j",
 29        "H": "%-H",
 30        "HH": "%H",
 31        "HH24": "%H",
 32        "S": "%-S",
 33        "SS": "%S",
 34        "SSSSSS": "%f",
 35        "E": "%a",
 36        "EE": "%a",
 37        "E3": "%a",
 38        "E4": "%A",
 39        "EEE": "%a",
 40        "EEEE": "%A",
 41    }
 42
 43    class Tokenizer(tokens.Tokenizer):
 44        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
 45        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
 46        KEYWORDS = {
 47            **tokens.Tokenizer.KEYWORDS,
 48            "**": TokenType.DSTAR,
 49            "^=": TokenType.NEQ,
 50            "BYTEINT": TokenType.SMALLINT,
 51            "COLLECT": TokenType.COMMAND,
 52            "DEL": TokenType.DELETE,
 53            "EQ": TokenType.EQ,
 54            "GE": TokenType.GTE,
 55            "GT": TokenType.GT,
 56            "HELP": TokenType.COMMAND,
 57            "INS": TokenType.INSERT,
 58            "LE": TokenType.LTE,
 59            "LT": TokenType.LT,
 60            "MINUS": TokenType.EXCEPT,
 61            "MOD": TokenType.MOD,
 62            "NE": TokenType.NEQ,
 63            "NOT=": TokenType.NEQ,
 64            "SAMPLE": TokenType.TABLE_SAMPLE,
 65            "SEL": TokenType.SELECT,
 66            "ST_GEOMETRY": TokenType.GEOMETRY,
 67            "TOP": TokenType.TOP,
 68            "UPD": TokenType.UPDATE,
 69        }
 70
 71        # Teradata does not support % as a modulo operator
 72        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
 73        SINGLE_TOKENS.pop("%")
 74
 75    class Parser(parser.Parser):
 76        TABLESAMPLE_CSV = True
 77        VALUES_FOLLOWED_BY_PAREN = False
 78
 79        CHARSET_TRANSLATORS = {
 80            "GRAPHIC_TO_KANJISJIS",
 81            "GRAPHIC_TO_LATIN",
 82            "GRAPHIC_TO_UNICODE",
 83            "GRAPHIC_TO_UNICODE_PadSpace",
 84            "KANJI1_KanjiEBCDIC_TO_UNICODE",
 85            "KANJI1_KanjiEUC_TO_UNICODE",
 86            "KANJI1_KANJISJIS_TO_UNICODE",
 87            "KANJI1_SBC_TO_UNICODE",
 88            "KANJISJIS_TO_GRAPHIC",
 89            "KANJISJIS_TO_LATIN",
 90            "KANJISJIS_TO_UNICODE",
 91            "LATIN_TO_GRAPHIC",
 92            "LATIN_TO_KANJISJIS",
 93            "LATIN_TO_UNICODE",
 94            "LOCALE_TO_UNICODE",
 95            "UNICODE_TO_GRAPHIC",
 96            "UNICODE_TO_GRAPHIC_PadGraphic",
 97            "UNICODE_TO_GRAPHIC_VarGraphic",
 98            "UNICODE_TO_KANJI1_KanjiEBCDIC",
 99            "UNICODE_TO_KANJI1_KanjiEUC",
100            "UNICODE_TO_KANJI1_KANJISJIS",
101            "UNICODE_TO_KANJI1_SBC",
102            "UNICODE_TO_KANJISJIS",
103            "UNICODE_TO_LATIN",
104            "UNICODE_TO_LOCALE",
105            "UNICODE_TO_UNICODE_FoldSpace",
106            "UNICODE_TO_UNICODE_Fullwidth",
107            "UNICODE_TO_UNICODE_Halfwidth",
108            "UNICODE_TO_UNICODE_NFC",
109            "UNICODE_TO_UNICODE_NFD",
110            "UNICODE_TO_UNICODE_NFKC",
111            "UNICODE_TO_UNICODE_NFKD",
112        }
113
114        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
115        FUNC_TOKENS.remove(TokenType.REPLACE)
116
117        STATEMENT_PARSERS = {
118            **parser.Parser.STATEMENT_PARSERS,
119            TokenType.DATABASE: lambda self: self.expression(
120                exp.Use, this=self._parse_table(schema=False)
121            ),
122            TokenType.REPLACE: lambda self: self._parse_create(),
123        }
124
125        FUNCTION_PARSERS = {
126            **parser.Parser.FUNCTION_PARSERS,
127            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
128            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
129            "RANGE_N": lambda self: self._parse_rangen(),
130            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
131        }
132
133        EXPONENT = {
134            TokenType.DSTAR: exp.Pow,
135        }
136
137        def _parse_translate(self, strict: bool) -> exp.Expression:
138            this = self._parse_conjunction()
139
140            if not self._match(TokenType.USING):
141                self.raise_error("Expected USING in TRANSLATE")
142
143            if self._match_texts(self.CHARSET_TRANSLATORS):
144                charset_split = self._prev.text.split("_TO_")
145                to = self.expression(exp.CharacterSet, this=charset_split[1])
146            else:
147                self.raise_error("Expected a character set translator after USING in TRANSLATE")
148
149            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
150
151        # FROM before SET in Teradata UPDATE syntax
152        # 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
153        def _parse_update(self) -> exp.Update:
154            return self.expression(
155                exp.Update,
156                **{  # type: ignore
157                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
158                    "from": self._parse_from(joins=True),
159                    "expressions": self._match(TokenType.SET)
160                    and self._parse_csv(self._parse_equality),
161                    "where": self._parse_where(),
162                },
163            )
164
165        def _parse_rangen(self):
166            this = self._parse_id_var()
167            self._match(TokenType.BETWEEN)
168
169            expressions = self._parse_csv(self._parse_conjunction)
170            each = self._match_text_seq("EACH") and self._parse_conjunction()
171
172            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)
173
174    class Generator(generator.Generator):
175        LIMIT_IS_TOP = True
176        JOIN_HINTS = False
177        TABLE_HINTS = False
178        QUERY_HINTS = False
179        TABLESAMPLE_KEYWORDS = "SAMPLE"
180        LAST_DAY_SUPPORTS_DATE_PART = False
181        CAN_IMPLEMENT_ARRAY_ANY = True
182
183        TYPE_MAPPING = {
184            **generator.Generator.TYPE_MAPPING,
185            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
186        }
187
188        PROPERTIES_LOCATION = {
189            **generator.Generator.PROPERTIES_LOCATION,
190            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
191            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
192            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
193        }
194
195        TRANSFORMS = {
196            **generator.Generator.TRANSFORMS,
197            exp.ArgMax: rename_func("MAX_BY"),
198            exp.ArgMin: rename_func("MIN_BY"),
199            exp.ArraySize: rename_func("CARDINALITY"),
200            exp.Max: max_or_greatest,
201            exp.Min: min_or_least,
202            exp.Pow: lambda self, e: self.binary(e, "**"),
203            exp.Select: transforms.preprocess(
204                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
205            ),
206            exp.StrToDate: lambda self,
207            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
208            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
209            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
210        }
211
212        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
213            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
214                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
215                expression.to.pop()
216
217            return super().cast_sql(expression, safe_prefix=safe_prefix)
218
219        def trycast_sql(self, expression: exp.TryCast) -> str:
220            return self.cast_sql(expression, safe_prefix="TRY")
221
222        def tablesample_sql(
223            self,
224            expression: exp.TableSample,
225            sep: str = " AS ",
226            tablesample_keyword: t.Optional[str] = None,
227        ) -> str:
228            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
229
230        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
231            return f"PARTITION BY {self.sql(expression, 'this')}"
232
233        # FROM before SET in Teradata UPDATE syntax
234        # 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
235        def update_sql(self, expression: exp.Update) -> str:
236            this = self.sql(expression, "this")
237            from_sql = self.sql(expression, "from")
238            set_sql = self.expressions(expression, flat=True)
239            where_sql = self.sql(expression, "where")
240            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
241            return self.prepend_ctes(expression, sql)
242
243        def mod_sql(self, expression: exp.Mod) -> str:
244            return self.binary(expression, "MOD")
245
246        def datatype_sql(self, expression: exp.DataType) -> str:
247            type_sql = super().datatype_sql(expression)
248            prefix_sql = expression.args.get("prefix")
249            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
250
251        def rangen_sql(self, expression: exp.RangeN) -> str:
252            this = self.sql(expression, "this")
253            expressions_sql = self.expressions(expression)
254            each_sql = self.sql(expression, "each")
255            each_sql = f" EACH {each_sql}" if each_sql else ""
256
257            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
258
259        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
260            kind = self.sql(expression, "kind").upper()
261            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
262                this_name = self.sql(expression.this, "this")
263                this_properties = self.properties(
264                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
265                    wrapped=False,
266                    prefix=",",
267                )
268                this_schema = self.schema_columns_sql(expression.this)
269                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
270
271            return super().createable_sql(expression, locations)
class Teradata(sqlglot.dialects.dialect.Dialect):
 11class Teradata(Dialect):
 12    SUPPORTS_SEMI_ANTI_JOIN = False
 13    TYPED_DIVISION = True
 14
 15    TIME_MAPPING = {
 16        "YY": "%y",
 17        "Y4": "%Y",
 18        "YYYY": "%Y",
 19        "M4": "%B",
 20        "M3": "%b",
 21        "M": "%-M",
 22        "MI": "%M",
 23        "MM": "%m",
 24        "MMM": "%b",
 25        "MMMM": "%B",
 26        "D": "%-d",
 27        "DD": "%d",
 28        "D3": "%j",
 29        "DDD": "%j",
 30        "H": "%-H",
 31        "HH": "%H",
 32        "HH24": "%H",
 33        "S": "%-S",
 34        "SS": "%S",
 35        "SSSSSS": "%f",
 36        "E": "%a",
 37        "EE": "%a",
 38        "E3": "%a",
 39        "E4": "%A",
 40        "EEE": "%a",
 41        "EEEE": "%A",
 42    }
 43
 44    class Tokenizer(tokens.Tokenizer):
 45        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
 46        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
 47        KEYWORDS = {
 48            **tokens.Tokenizer.KEYWORDS,
 49            "**": TokenType.DSTAR,
 50            "^=": TokenType.NEQ,
 51            "BYTEINT": TokenType.SMALLINT,
 52            "COLLECT": TokenType.COMMAND,
 53            "DEL": TokenType.DELETE,
 54            "EQ": TokenType.EQ,
 55            "GE": TokenType.GTE,
 56            "GT": TokenType.GT,
 57            "HELP": TokenType.COMMAND,
 58            "INS": TokenType.INSERT,
 59            "LE": TokenType.LTE,
 60            "LT": TokenType.LT,
 61            "MINUS": TokenType.EXCEPT,
 62            "MOD": TokenType.MOD,
 63            "NE": TokenType.NEQ,
 64            "NOT=": TokenType.NEQ,
 65            "SAMPLE": TokenType.TABLE_SAMPLE,
 66            "SEL": TokenType.SELECT,
 67            "ST_GEOMETRY": TokenType.GEOMETRY,
 68            "TOP": TokenType.TOP,
 69            "UPD": TokenType.UPDATE,
 70        }
 71
 72        # Teradata does not support % as a modulo operator
 73        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
 74        SINGLE_TOKENS.pop("%")
 75
 76    class Parser(parser.Parser):
 77        TABLESAMPLE_CSV = True
 78        VALUES_FOLLOWED_BY_PAREN = False
 79
 80        CHARSET_TRANSLATORS = {
 81            "GRAPHIC_TO_KANJISJIS",
 82            "GRAPHIC_TO_LATIN",
 83            "GRAPHIC_TO_UNICODE",
 84            "GRAPHIC_TO_UNICODE_PadSpace",
 85            "KANJI1_KanjiEBCDIC_TO_UNICODE",
 86            "KANJI1_KanjiEUC_TO_UNICODE",
 87            "KANJI1_KANJISJIS_TO_UNICODE",
 88            "KANJI1_SBC_TO_UNICODE",
 89            "KANJISJIS_TO_GRAPHIC",
 90            "KANJISJIS_TO_LATIN",
 91            "KANJISJIS_TO_UNICODE",
 92            "LATIN_TO_GRAPHIC",
 93            "LATIN_TO_KANJISJIS",
 94            "LATIN_TO_UNICODE",
 95            "LOCALE_TO_UNICODE",
 96            "UNICODE_TO_GRAPHIC",
 97            "UNICODE_TO_GRAPHIC_PadGraphic",
 98            "UNICODE_TO_GRAPHIC_VarGraphic",
 99            "UNICODE_TO_KANJI1_KanjiEBCDIC",
100            "UNICODE_TO_KANJI1_KanjiEUC",
101            "UNICODE_TO_KANJI1_KANJISJIS",
102            "UNICODE_TO_KANJI1_SBC",
103            "UNICODE_TO_KANJISJIS",
104            "UNICODE_TO_LATIN",
105            "UNICODE_TO_LOCALE",
106            "UNICODE_TO_UNICODE_FoldSpace",
107            "UNICODE_TO_UNICODE_Fullwidth",
108            "UNICODE_TO_UNICODE_Halfwidth",
109            "UNICODE_TO_UNICODE_NFC",
110            "UNICODE_TO_UNICODE_NFD",
111            "UNICODE_TO_UNICODE_NFKC",
112            "UNICODE_TO_UNICODE_NFKD",
113        }
114
115        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
116        FUNC_TOKENS.remove(TokenType.REPLACE)
117
118        STATEMENT_PARSERS = {
119            **parser.Parser.STATEMENT_PARSERS,
120            TokenType.DATABASE: lambda self: self.expression(
121                exp.Use, this=self._parse_table(schema=False)
122            ),
123            TokenType.REPLACE: lambda self: self._parse_create(),
124        }
125
126        FUNCTION_PARSERS = {
127            **parser.Parser.FUNCTION_PARSERS,
128            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
129            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
130            "RANGE_N": lambda self: self._parse_rangen(),
131            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
132        }
133
134        EXPONENT = {
135            TokenType.DSTAR: exp.Pow,
136        }
137
138        def _parse_translate(self, strict: bool) -> exp.Expression:
139            this = self._parse_conjunction()
140
141            if not self._match(TokenType.USING):
142                self.raise_error("Expected USING in TRANSLATE")
143
144            if self._match_texts(self.CHARSET_TRANSLATORS):
145                charset_split = self._prev.text.split("_TO_")
146                to = self.expression(exp.CharacterSet, this=charset_split[1])
147            else:
148                self.raise_error("Expected a character set translator after USING in TRANSLATE")
149
150            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
151
152        # FROM before SET in Teradata UPDATE syntax
153        # 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
154        def _parse_update(self) -> exp.Update:
155            return self.expression(
156                exp.Update,
157                **{  # type: ignore
158                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
159                    "from": self._parse_from(joins=True),
160                    "expressions": self._match(TokenType.SET)
161                    and self._parse_csv(self._parse_equality),
162                    "where": self._parse_where(),
163                },
164            )
165
166        def _parse_rangen(self):
167            this = self._parse_id_var()
168            self._match(TokenType.BETWEEN)
169
170            expressions = self._parse_csv(self._parse_conjunction)
171            each = self._match_text_seq("EACH") and self._parse_conjunction()
172
173            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)
174
175    class Generator(generator.Generator):
176        LIMIT_IS_TOP = True
177        JOIN_HINTS = False
178        TABLE_HINTS = False
179        QUERY_HINTS = False
180        TABLESAMPLE_KEYWORDS = "SAMPLE"
181        LAST_DAY_SUPPORTS_DATE_PART = False
182        CAN_IMPLEMENT_ARRAY_ANY = True
183
184        TYPE_MAPPING = {
185            **generator.Generator.TYPE_MAPPING,
186            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
187        }
188
189        PROPERTIES_LOCATION = {
190            **generator.Generator.PROPERTIES_LOCATION,
191            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
192            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
193            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
194        }
195
196        TRANSFORMS = {
197            **generator.Generator.TRANSFORMS,
198            exp.ArgMax: rename_func("MAX_BY"),
199            exp.ArgMin: rename_func("MIN_BY"),
200            exp.ArraySize: rename_func("CARDINALITY"),
201            exp.Max: max_or_greatest,
202            exp.Min: min_or_least,
203            exp.Pow: lambda self, e: self.binary(e, "**"),
204            exp.Select: transforms.preprocess(
205                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
206            ),
207            exp.StrToDate: lambda self,
208            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
209            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
210            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
211        }
212
213        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
214            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
215                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
216                expression.to.pop()
217
218            return super().cast_sql(expression, safe_prefix=safe_prefix)
219
220        def trycast_sql(self, expression: exp.TryCast) -> str:
221            return self.cast_sql(expression, safe_prefix="TRY")
222
223        def tablesample_sql(
224            self,
225            expression: exp.TableSample,
226            sep: str = " AS ",
227            tablesample_keyword: t.Optional[str] = None,
228        ) -> str:
229            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
230
231        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
232            return f"PARTITION BY {self.sql(expression, 'this')}"
233
234        # FROM before SET in Teradata UPDATE syntax
235        # 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
236        def update_sql(self, expression: exp.Update) -> str:
237            this = self.sql(expression, "this")
238            from_sql = self.sql(expression, "from")
239            set_sql = self.expressions(expression, flat=True)
240            where_sql = self.sql(expression, "where")
241            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
242            return self.prepend_ctes(expression, sql)
243
244        def mod_sql(self, expression: exp.Mod) -> str:
245            return self.binary(expression, "MOD")
246
247        def datatype_sql(self, expression: exp.DataType) -> str:
248            type_sql = super().datatype_sql(expression)
249            prefix_sql = expression.args.get("prefix")
250            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
251
252        def rangen_sql(self, expression: exp.RangeN) -> str:
253            this = self.sql(expression, "this")
254            expressions_sql = self.expressions(expression)
255            each_sql = self.sql(expression, "each")
256            each_sql = f" EACH {each_sql}" if each_sql else ""
257
258            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
259
260        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
261            kind = self.sql(expression, "kind").upper()
262            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
263                this_name = self.sql(expression.this, "this")
264                this_properties = self.properties(
265                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
266                    wrapped=False,
267                    prefix=",",
268                )
269                this_schema = self.schema_columns_sql(expression.this)
270                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
271
272            return super().createable_sql(expression, locations)
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.

tokenizer_class = <class 'Teradata.Tokenizer'>
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}}}
INVERSE_ESCAPE_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):
44    class Tokenizer(tokens.Tokenizer):
45        # https://docs.teradata.com/r/Teradata-Database-SQL-Functions-Operators-Expressions-and-Predicates/March-2017/Comparison-Operators-and-Functions/Comparison-Operators/ANSI-Compliance
46        # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Arithmetic-Trigonometric-Hyperbolic-Operators/Functions
47        KEYWORDS = {
48            **tokens.Tokenizer.KEYWORDS,
49            "**": TokenType.DSTAR,
50            "^=": TokenType.NEQ,
51            "BYTEINT": TokenType.SMALLINT,
52            "COLLECT": TokenType.COMMAND,
53            "DEL": TokenType.DELETE,
54            "EQ": TokenType.EQ,
55            "GE": TokenType.GTE,
56            "GT": TokenType.GT,
57            "HELP": TokenType.COMMAND,
58            "INS": TokenType.INSERT,
59            "LE": TokenType.LTE,
60            "LT": TokenType.LT,
61            "MINUS": TokenType.EXCEPT,
62            "MOD": TokenType.MOD,
63            "NE": TokenType.NEQ,
64            "NOT=": TokenType.NEQ,
65            "SAMPLE": TokenType.TABLE_SAMPLE,
66            "SEL": TokenType.SELECT,
67            "ST_GEOMETRY": TokenType.GEOMETRY,
68            "TOP": TokenType.TOP,
69            "UPD": TokenType.UPDATE,
70        }
71
72        # Teradata does not support % as a modulo operator
73        SINGLE_TOKENS = {**tokens.Tokenizer.SINGLE_TOKENS}
74        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'>, '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'>, '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'>, 'DEC': <TokenType.DECIMAL: 'DECIMAL'>, 'DECIMAL': <TokenType.DECIMAL: 'DECIMAL'>, 'BIGDECIMAL': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, 'BIGNUMERIC': <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, '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'>, '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'>, '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'>, 'VARIANT': <TokenType.VARIANT: 'VARIANT'>, 'ALTER': <TokenType.ALTER: 'ALTER'>, 'ANALYZE': <TokenType.COMMAND: 'COMMAND'>, 'CALL': <TokenType.COMMAND: 'COMMAND'>, 'COMMENT': <TokenType.COMMENT: 'COMMENT'>, 'COPY': <TokenType.COMMAND: 'COMMAND'>, '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.QUOTE: 'QUOTE'>, '`': <TokenType.IDENTIFIER: 'IDENTIFIER'>, '"': <TokenType.IDENTIFIER: 'IDENTIFIER'>, '#': <TokenType.HASH: 'HASH'>}
class Teradata.Parser(sqlglot.parser.Parser):
 76    class Parser(parser.Parser):
 77        TABLESAMPLE_CSV = True
 78        VALUES_FOLLOWED_BY_PAREN = False
 79
 80        CHARSET_TRANSLATORS = {
 81            "GRAPHIC_TO_KANJISJIS",
 82            "GRAPHIC_TO_LATIN",
 83            "GRAPHIC_TO_UNICODE",
 84            "GRAPHIC_TO_UNICODE_PadSpace",
 85            "KANJI1_KanjiEBCDIC_TO_UNICODE",
 86            "KANJI1_KanjiEUC_TO_UNICODE",
 87            "KANJI1_KANJISJIS_TO_UNICODE",
 88            "KANJI1_SBC_TO_UNICODE",
 89            "KANJISJIS_TO_GRAPHIC",
 90            "KANJISJIS_TO_LATIN",
 91            "KANJISJIS_TO_UNICODE",
 92            "LATIN_TO_GRAPHIC",
 93            "LATIN_TO_KANJISJIS",
 94            "LATIN_TO_UNICODE",
 95            "LOCALE_TO_UNICODE",
 96            "UNICODE_TO_GRAPHIC",
 97            "UNICODE_TO_GRAPHIC_PadGraphic",
 98            "UNICODE_TO_GRAPHIC_VarGraphic",
 99            "UNICODE_TO_KANJI1_KanjiEBCDIC",
100            "UNICODE_TO_KANJI1_KanjiEUC",
101            "UNICODE_TO_KANJI1_KANJISJIS",
102            "UNICODE_TO_KANJI1_SBC",
103            "UNICODE_TO_KANJISJIS",
104            "UNICODE_TO_LATIN",
105            "UNICODE_TO_LOCALE",
106            "UNICODE_TO_UNICODE_FoldSpace",
107            "UNICODE_TO_UNICODE_Fullwidth",
108            "UNICODE_TO_UNICODE_Halfwidth",
109            "UNICODE_TO_UNICODE_NFC",
110            "UNICODE_TO_UNICODE_NFD",
111            "UNICODE_TO_UNICODE_NFKC",
112            "UNICODE_TO_UNICODE_NFKD",
113        }
114
115        FUNC_TOKENS = {*parser.Parser.FUNC_TOKENS}
116        FUNC_TOKENS.remove(TokenType.REPLACE)
117
118        STATEMENT_PARSERS = {
119            **parser.Parser.STATEMENT_PARSERS,
120            TokenType.DATABASE: lambda self: self.expression(
121                exp.Use, this=self._parse_table(schema=False)
122            ),
123            TokenType.REPLACE: lambda self: self._parse_create(),
124        }
125
126        FUNCTION_PARSERS = {
127            **parser.Parser.FUNCTION_PARSERS,
128            # https://docs.teradata.com/r/SQL-Functions-Operators-Expressions-and-Predicates/June-2017/Data-Type-Conversions/TRYCAST
129            "TRYCAST": parser.Parser.FUNCTION_PARSERS["TRY_CAST"],
130            "RANGE_N": lambda self: self._parse_rangen(),
131            "TRANSLATE": lambda self: self._parse_translate(self.STRICT_CAST),
132        }
133
134        EXPONENT = {
135            TokenType.DSTAR: exp.Pow,
136        }
137
138        def _parse_translate(self, strict: bool) -> exp.Expression:
139            this = self._parse_conjunction()
140
141            if not self._match(TokenType.USING):
142                self.raise_error("Expected USING in TRANSLATE")
143
144            if self._match_texts(self.CHARSET_TRANSLATORS):
145                charset_split = self._prev.text.split("_TO_")
146                to = self.expression(exp.CharacterSet, this=charset_split[1])
147            else:
148                self.raise_error("Expected a character set translator after USING in TRANSLATE")
149
150            return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to)
151
152        # FROM before SET in Teradata UPDATE syntax
153        # 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
154        def _parse_update(self) -> exp.Update:
155            return self.expression(
156                exp.Update,
157                **{  # type: ignore
158                    "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS),
159                    "from": self._parse_from(joins=True),
160                    "expressions": self._match(TokenType.SET)
161                    and self._parse_csv(self._parse_equality),
162                    "where": self._parse_where(),
163                },
164            )
165
166        def _parse_rangen(self):
167            this = self._parse_id_var()
168            self._match(TokenType.BETWEEN)
169
170            expressions = self._parse_csv(self._parse_conjunction)
171            each = self._match_text_seq("EACH") and self._parse_conjunction()
172
173            return self.expression(exp.RangeN, this=this, expressions=expressions, each=each)

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 = {'KANJI1_KanjiEUC_TO_UNICODE', 'UNICODE_TO_KANJI1_KanjiEUC', 'UNICODE_TO_LOCALE', 'UNICODE_TO_GRAPHIC_VarGraphic', 'KANJISJIS_TO_GRAPHIC', 'UNICODE_TO_UNICODE_NFD', 'GRAPHIC_TO_UNICODE_PadSpace', 'UNICODE_TO_KANJI1_KanjiEBCDIC', 'KANJISJIS_TO_UNICODE', 'UNICODE_TO_KANJISJIS', 'GRAPHIC_TO_UNICODE', 'LOCALE_TO_UNICODE', 'UNICODE_TO_LATIN', 'UNICODE_TO_KANJI1_KANJISJIS', 'LATIN_TO_KANJISJIS', 'KANJI1_KanjiEBCDIC_TO_UNICODE', 'UNICODE_TO_UNICODE_FoldSpace', 'UNICODE_TO_GRAPHIC_PadGraphic', 'UNICODE_TO_UNICODE_Fullwidth', 'KANJI1_SBC_TO_UNICODE', 'LATIN_TO_UNICODE', 'UNICODE_TO_UNICODE_NFKD', 'UNICODE_TO_UNICODE_Halfwidth', 'UNICODE_TO_GRAPHIC', 'UNICODE_TO_UNICODE_NFC', 'GRAPHIC_TO_KANJISJIS', 'GRAPHIC_TO_LATIN', 'KANJISJIS_TO_LATIN', 'UNICODE_TO_UNICODE_NFKC', 'LATIN_TO_GRAPHIC', 'KANJI1_KANJISJIS_TO_UNICODE', 'UNICODE_TO_KANJI1_SBC'}
FUNC_TOKENS = {<TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.CHAR: 'CHAR'>, <TokenType.GLOB: 'GLOB'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.INT128: 'INT128'>, <TokenType.INT256: 'INT256'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.TEXT: 'TEXT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.YEAR: 'YEAR'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.XOR: 'XOR'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.IPV4: 'IPV4'>, <TokenType.DATE32: 'DATE32'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.INDEX: 'INDEX'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.ROW: 'ROW'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UUID: 'UUID'>, <TokenType.FIRST: 'FIRST'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.INT: 'INT'>, <TokenType.ANY: 'ANY'>, <TokenType.VAR: 'VAR'>, <TokenType.LIKE: 'LIKE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.MAP: 'MAP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.FILTER: 'FILTER'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.DATE: 'DATE'>, <TokenType.INET: 'INET'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.NULL: 'NULL'>, <TokenType.MONEY: 'MONEY'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.INSERT: 'INSERT'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ALL: 'ALL'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.SOME: 'SOME'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.UINT256: 'UINT256'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.MERGE: 'MERGE'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TABLE: 'TABLE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.ENUM: 'ENUM'>, <TokenType.XML: 'XML'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.JSON: 'JSON'>, <TokenType.LEFT: 'LEFT'>, <TokenType.UINT: 'UINT'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.IPV6: 'IPV6'>}
STATEMENT_PARSERS = {<TokenType.ALTER: 'ALTER'>: <function Parser.<lambda>>, <TokenType.BEGIN: 'BEGIN'>: <function Parser.<lambda>>, <TokenType.CACHE: 'CACHE'>: <function Parser.<lambda>>, <TokenType.COMMIT: 'COMMIT'>: <function Parser.<lambda>>, <TokenType.COMMENT: 'COMMENT'>: <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.UNCACHE: 'UNCACHE'>: <function Parser.<lambda>>, <TokenType.UPDATE: 'UPDATE'>: <function Parser.<lambda>>, <TokenType.TRUNCATE: 'TRUNCATE'>: <function Parser.<lambda>>, <TokenType.USE: 'USE'>: <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>>, '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'>}
TABLE_ALIAS_TOKENS = {<TokenType.COMMIT: 'COMMIT'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.FINAL: 'FINAL'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.CHAR: 'CHAR'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.VIEW: 'VIEW'>, <TokenType.INT128: 'INT128'>, <TokenType.INT256: 'INT256'>, <TokenType.DESC: 'DESC'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.TEXT: 'TEXT'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.YEAR: 'YEAR'>, <TokenType.TIME: 'TIME'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.IPV4: 'IPV4'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.ASC: 'ASC'>, <TokenType.DATE32: 'DATE32'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.SEMI: 'SEMI'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.INDEX: 'INDEX'>, <TokenType.USE: 'USE'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.ROW: 'ROW'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.DIV: 'DIV'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.RANGE: 'RANGE'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.NESTED: 'NESTED'>, <TokenType.UUID: 'UUID'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.FIRST: 'FIRST'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.IS: 'IS'>, <TokenType.INT: 'INT'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.ANY: 'ANY'>, <TokenType.VAR: 'VAR'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.MAP: 'MAP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.FALSE: 'FALSE'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.BIT: 'BIT'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.FILTER: 'FILTER'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.KILL: 'KILL'>, <TokenType.ROWS: 'ROWS'>, <TokenType.TRUE: 'TRUE'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.TOP: 'TOP'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.SET: 'SET'>, <TokenType.INET: 'INET'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.DATE: 'DATE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.NULL: 'NULL'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.MONEY: 'MONEY'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.JSONB: 'JSONB'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.BINARY: 'BINARY'>, <TokenType.NEXT: 'NEXT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.LOAD: 'LOAD'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.DELETE: 'DELETE'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.END: 'END'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.ALL: 'ALL'>, <TokenType.SOME: 'SOME'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.ANTI: 'ANTI'>, <TokenType.DEFAULT: 'DEFAULT'>, <TokenType.UINT256: 'UINT256'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.MODEL: 'MODEL'>, <TokenType.KEEP: 'KEEP'>, <TokenType.CASE: 'CASE'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.CACHE: 'CACHE'>, <TokenType.MERGE: 'MERGE'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.TABLE: 'TABLE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.ENUM: 'ENUM'>, <TokenType.XML: 'XML'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.JSON: 'JSON'>, <TokenType.UINT: 'UINT'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.IPV6: 'IPV6'>}
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
ID_VAR_TOKENS
INTERVAL_VARS
COMMENT_TABLE_ALIAS_TOKENS
UPDATE_ALIAS_TOKENS
TRIM_TYPES
CONJUNCTION
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
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
DDL_SELECT_TOKENS
PRE_VOLATILE_TOKENS
TRANSACTION_KIND
TRANSACTION_CHARACTERISTICS
USABLES
INSERT_ALTERNATIVES
CLONE_KEYWORDS
HISTORICAL_DATA_KIND
OPCLASS_FOLLOW_KEYWORDS
OPTYPE_FOLLOW_TOKENS
TABLE_INDEX_HINT_TOKENS
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
STRICT_CAST
PREFIXED_PIVOT_COLUMNS
IDENTIFY_PIVOT_STRINGS
LOG_DEFAULTS_TO_LN
ALTER_TABLE_ADD_REQUIRED_FOR_EACH_COLUMN
SET_REQUIRES_ASSIGNMENT_DELIMITER
TRIM_PATTERN_FIRST
STRING_ALIASES
MODIFIERS_ATTACHED_TO_UNION
UNION_MODIFIERS
NO_PAREN_IF_COMMANDS
JSON_ARROWS_REQUIRE_JSON_TYPE
SUPPORTS_IMPLICIT_UNNEST
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):
175    class Generator(generator.Generator):
176        LIMIT_IS_TOP = True
177        JOIN_HINTS = False
178        TABLE_HINTS = False
179        QUERY_HINTS = False
180        TABLESAMPLE_KEYWORDS = "SAMPLE"
181        LAST_DAY_SUPPORTS_DATE_PART = False
182        CAN_IMPLEMENT_ARRAY_ANY = True
183
184        TYPE_MAPPING = {
185            **generator.Generator.TYPE_MAPPING,
186            exp.DataType.Type.GEOMETRY: "ST_GEOMETRY",
187        }
188
189        PROPERTIES_LOCATION = {
190            **generator.Generator.PROPERTIES_LOCATION,
191            exp.OnCommitProperty: exp.Properties.Location.POST_INDEX,
192            exp.PartitionedByProperty: exp.Properties.Location.POST_EXPRESSION,
193            exp.StabilityProperty: exp.Properties.Location.POST_CREATE,
194        }
195
196        TRANSFORMS = {
197            **generator.Generator.TRANSFORMS,
198            exp.ArgMax: rename_func("MAX_BY"),
199            exp.ArgMin: rename_func("MIN_BY"),
200            exp.ArraySize: rename_func("CARDINALITY"),
201            exp.Max: max_or_greatest,
202            exp.Min: min_or_least,
203            exp.Pow: lambda self, e: self.binary(e, "**"),
204            exp.Select: transforms.preprocess(
205                [transforms.eliminate_distinct_on, transforms.eliminate_semi_and_anti_joins]
206            ),
207            exp.StrToDate: lambda self,
208            e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})",
209            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
210            exp.Use: lambda self, e: f"DATABASE {self.sql(e, 'this')}",
211        }
212
213        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
214            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
215                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
216                expression.to.pop()
217
218            return super().cast_sql(expression, safe_prefix=safe_prefix)
219
220        def trycast_sql(self, expression: exp.TryCast) -> str:
221            return self.cast_sql(expression, safe_prefix="TRY")
222
223        def tablesample_sql(
224            self,
225            expression: exp.TableSample,
226            sep: str = " AS ",
227            tablesample_keyword: t.Optional[str] = None,
228        ) -> str:
229            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
230
231        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
232            return f"PARTITION BY {self.sql(expression, 'this')}"
233
234        # FROM before SET in Teradata UPDATE syntax
235        # 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
236        def update_sql(self, expression: exp.Update) -> str:
237            this = self.sql(expression, "this")
238            from_sql = self.sql(expression, "from")
239            set_sql = self.expressions(expression, flat=True)
240            where_sql = self.sql(expression, "where")
241            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
242            return self.prepend_ctes(expression, sql)
243
244        def mod_sql(self, expression: exp.Mod) -> str:
245            return self.binary(expression, "MOD")
246
247        def datatype_sql(self, expression: exp.DataType) -> str:
248            type_sql = super().datatype_sql(expression)
249            prefix_sql = expression.args.get("prefix")
250            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
251
252        def rangen_sql(self, expression: exp.RangeN) -> str:
253            this = self.sql(expression, "this")
254            expressions_sql = self.expressions(expression)
255            each_sql = self.sql(expression, "each")
256            each_sql = f" EACH {each_sql}" if each_sql else ""
257
258            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
259
260        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
261            kind = self.sql(expression, "kind").upper()
262            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
263                this_name = self.sql(expression.this, "this")
264                this_properties = self.properties(
265                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
266                    wrapped=False,
267                    prefix=",",
268                )
269                this_schema = self.schema_columns_sql(expression.this)
270                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
271
272            return super().createable_sql(expression, locations)

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. Default: 2.
  • indent: The indentation size in a formatted string. 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.GEOMETRY: 'GEOMETRY'>: 'ST_GEOMETRY'}
PROPERTIES_LOCATION = {<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.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.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.HeapProperty'>: <Location.POST_WITH: 'POST_WITH'>, <class 'sqlglot.expressions.InheritsProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.InputModelProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.IsolatedLoadingProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.JournalProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.LanguageProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LikeProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LocationProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.LockingProperty'>: <Location.POST_ALIAS: 'POST_ALIAS'>, <class 'sqlglot.expressions.LogProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.MaterializedProperty'>: <Location.POST_CREATE: 'POST_CREATE'>, <class 'sqlglot.expressions.MergeBlockRatioProperty'>: <Location.POST_NAME: 'POST_NAME'>, <class 'sqlglot.expressions.NoPrimaryIndexProperty'>: <Location.POST_EXPRESSION: 'POST_EXPRESSION'>, <class 'sqlglot.expressions.OnProperty'>: <Location.POST_SCHEMA: 'POST_SCHEMA'>, <class 'sqlglot.expressions.OnCommitProperty'>: <Location.POST_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.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.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.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.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.AutoRefreshProperty'>: <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.DateAdd'>: <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.ExecuteAsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ExternalProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.HeapProperty'>: <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.RemoteWithConnectionModelProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.ReturnsProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SampleProperty'>: <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.SqlReadWriteProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.SqlSecurityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.StabilityProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TemporaryProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.TitleColumnConstraint'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.Timestamp'>: <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.VarMap'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.VolatileProperty'>: <function Generator.<lambda>>, <class 'sqlglot.expressions.WithJournalTableProperty'>: <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.Use'>: <function Teradata.Generator.<lambda>>}
def cast_sql( self, expression: sqlglot.expressions.Cast, safe_prefix: Optional[str] = None) -> str:
213        def cast_sql(self, expression: exp.Cast, safe_prefix: t.Optional[str] = None) -> str:
214            if expression.to.this == exp.DataType.Type.UNKNOWN and expression.args.get("format"):
215                # We don't actually want to print the unknown type in CAST(<value> AS FORMAT <format>)
216                expression.to.pop()
217
218            return super().cast_sql(expression, safe_prefix=safe_prefix)
def trycast_sql(self, expression: sqlglot.expressions.TryCast) -> str:
220        def trycast_sql(self, expression: exp.TryCast) -> str:
221            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:
223        def tablesample_sql(
224            self,
225            expression: exp.TableSample,
226            sep: str = " AS ",
227            tablesample_keyword: t.Optional[str] = None,
228        ) -> str:
229            return f"{self.sql(expression, 'this')} SAMPLE {self.expressions(expression)}"
def partitionedbyproperty_sql(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:
231        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
232            return f"PARTITION BY {self.sql(expression, 'this')}"
def update_sql(self, expression: sqlglot.expressions.Update) -> str:
236        def update_sql(self, expression: exp.Update) -> str:
237            this = self.sql(expression, "this")
238            from_sql = self.sql(expression, "from")
239            set_sql = self.expressions(expression, flat=True)
240            where_sql = self.sql(expression, "where")
241            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
242            return self.prepend_ctes(expression, sql)
def mod_sql(self, expression: sqlglot.expressions.Mod) -> str:
244        def mod_sql(self, expression: exp.Mod) -> str:
245            return self.binary(expression, "MOD")
def datatype_sql(self, expression: sqlglot.expressions.DataType) -> str:
247        def datatype_sql(self, expression: exp.DataType) -> str:
248            type_sql = super().datatype_sql(expression)
249            prefix_sql = expression.args.get("prefix")
250            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
def rangen_sql(self, expression: sqlglot.expressions.RangeN) -> str:
252        def rangen_sql(self, expression: exp.RangeN) -> str:
253            this = self.sql(expression, "this")
254            expressions_sql = self.expressions(expression)
255            each_sql = self.sql(expression, "each")
256            each_sql = f" EACH {each_sql}" if each_sql else ""
257
258            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
def createable_sql( self, expression: sqlglot.expressions.Create, locations: DefaultDict) -> str:
260        def createable_sql(self, expression: exp.Create, locations: t.DefaultDict) -> str:
261            kind = self.sql(expression, "kind").upper()
262            if kind == "TABLE" and locations.get(exp.Properties.Location.POST_NAME):
263                this_name = self.sql(expression.this, "this")
264                this_properties = self.properties(
265                    exp.Properties(expressions=locations[exp.Properties.Location.POST_NAME]),
266                    wrapped=False,
267                    prefix=",",
268                )
269                this_schema = self.schema_columns_sql(expression.this)
270                return f"{this_name}{this_properties}{self.sep()}{this_schema}"
271
272            return super().createable_sql(expression, locations)
SELECT_KINDS: Tuple[str, ...] = ()
Inherited Members
sqlglot.generator.Generator
Generator
NULL_ORDERING_SUPPORTED
IGNORE_NULLS_IN_FUNC
LOCKING_READS_SUPPORTED
EXPLICIT_UNION
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
COLUMN_JOIN_MARKS_SUPPORTED
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
STAR_MAPPING
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_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
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
index_sql
identifier_sql
inputoutputformat_sql
national_sql
partition_sql
properties_sql
root_properties
properties
with_properties
locate_properties
property_name
property_sql
likeproperty_sql
fallbackproperty_sql
journalproperty_sql
freespaceproperty_sql
checksumproperty_sql
mergeblockratioproperty_sql
datablocksizeproperty_sql
blockcompressionproperty_sql
isolatedloadingproperty_sql
partitionboundspec_sql
partitionedofproperty_sql
lockingproperty_sql
withdataproperty_sql
withsystemversioningproperty_sql
insert_sql
intersect_sql
intersect_op
introducer_sql
kill_sql
pseudotype_sql
objectidentifier_sql
onconflict_sql
returning_sql
rowformatdelimitedproperty_sql
withtablehint_sql
indextablehint_sql
historicaldata_sql
table_parts
table_sql
pivot_sql
version_sql
tuple_sql
values_sql
var_sql
into_sql
from_sql
group_sql
having_sql
connect_sql
prior_sql
join_sql
lambda_sql
lateral_op
lateral_sql
limit_sql
offset_sql
setitem_sql
set_sql
pragma_sql
lock_sql
literal_sql
escape_str
loaddata_sql
null_sql
boolean_sql
order_sql
withfill_sql
cluster_sql
distribute_sql
sort_sql
ordered_sql
matchrecognize_sql
query_modifiers
queryoption_sql
offset_limit_modifiers
after_having_modifiers
after_limit_modifiers
select_sql
schema_sql
schema_columns_sql
star_sql
parameter_sql
sessionparameter_sql
placeholder_sql
subquery_sql
qualify_sql
union_sql
union_op
unnest_sql
prewhere_sql
where_sql
window_sql
partition_by_sql
windowspec_sql
withingroup_sql
between_sql
bracket_sql
all_sql
any_sql
exists_sql
case_sql
constraint_sql
nextvaluefor_sql
extract_sql
trim_sql
convert_concat_args
concat_sql
concatws_sql
check_sql
foreignkey_sql
primarykey_sql
if_sql
matchagainst_sql
jsonkeyvalue_sql
jsonpath_sql
json_path_part
formatjson_sql
jsonobject_sql
jsonobjectagg_sql
jsonarray_sql
jsonarrayagg_sql
jsoncolumndef_sql
jsonschema_sql
jsontable_sql
openjsoncolumndef_sql
openjson_sql
in_sql
in_unnest_op
interval_sql
return_sql
reference_sql
anonymous_sql
paren_sql
neg_sql
not_sql
alias_sql
pivotalias_sql
aliases_sql
atindex_sql
attimezone_sql
fromtimezone_sql
add_sql
and_sql
xor_sql
connector_sql
bitwiseand_sql
bitwiseleftshift_sql
bitwisenot_sql
bitwiseor_sql
bitwiserightshift_sql
bitwisexor_sql
currentdate_sql
currenttimestamp_sql
collate_sql
command_sql
comment_sql
mergetreettlaction_sql
mergetreettl_sql
transaction_sql
commit_sql
rollback_sql
altercolumn_sql
renametable_sql
renamecolumn_sql
altertable_sql
add_column_sql
droppartition_sql
addconstraint_sql
distinct_sql
ignorenulls_sql
respectnulls_sql
havingmax_sql
intdiv_sql
dpipe_sql
div_sql
overlaps_sql
distance_sql
dot_sql
eq_sql
propertyeq_sql
escape_sql
glob_sql
gt_sql
gte_sql
ilike_sql
ilikeany_sql
is_sql
like_sql
likeany_sql
similarto_sql
lt_sql
lte_sql
mul_sql
neq_sql
nullsafeeq_sql
nullsafeneq_sql
or_sql
slice_sql
sub_sql
log_sql
use_sql
binary
function_fallback_sql
func
format_args
text_width
format_time
expressions
op_expressions
naked_property
set_operation
tag_sql
token_sql
userdefinedfunction_sql
joinhint_sql
kwarg_sql
when_sql
merge_sql
tochar_sql
dictproperty_sql
dictrange_sql
dictsubproperty_sql
oncluster_sql
clusteredbyproperty_sql
anyvalue_sql
querytransform_sql
indexconstraintoption_sql
checkcolumnconstraint_sql
indexcolumnconstraint_sql
nvl2_sql
comprehension_sql
columnprefix_sql
opclass_sql
predict_sql
forin_sql
refresh_sql
operator_sql
toarray_sql
tsordstotime_sql
tsordstodate_sql
unixdate_sql
lastday_sql
arrayany_sql
generateseries_sql
struct_sql
partitionrange_sql
truncatetable_sql
convert_sql