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)
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)
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}}}
Inherited Members
- sqlglot.dialects.dialect.Dialect
- Dialect
- INDEX_OFFSET
- WEEK_OFFSET
- UNNEST_COLUMN_ONLY
- ALIAS_POST_TABLESAMPLE
- TABLESAMPLE_SIZE_IS_PERCENT
- NORMALIZATION_STRATEGY
- IDENTIFIERS_CAN_START_WITH_DIGIT
- DPIPE_IS_STRING_CONCAT
- STRICT_STRING_CONCAT
- SUPPORTS_USER_DEFINED_TYPES
- NORMALIZE_FUNCTIONS
- LOG_BASE_FIRST
- NULL_ORDERING
- SAFE_DIVISION
- CONCAT_COALESCE
- DATE_FORMAT
- DATEINT_FORMAT
- TIME_FORMAT
- FORMAT_MAPPING
- ESCAPE_SEQUENCES
- PSEUDOCOLUMNS
- PREFER_CTE_ALIAS_COLUMN
- get_or_raise
- format_time
- normalize_identifier
- case_sensitive
- can_identify
- quote_identifier
- to_json_path
- parse
- parse_into
- generate
- transpile
- tokenize
- tokenizer
- parser
- generator
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'>}
Inherited Members
- sqlglot.tokens.Tokenizer
- Tokenizer
- BIT_STRINGS
- BYTE_STRINGS
- HEX_STRINGS
- RAW_STRINGS
- HEREDOC_STRINGS
- UNICODE_STRINGS
- IDENTIFIERS
- IDENTIFIER_ESCAPES
- QUOTES
- STRING_ESCAPES
- VAR_SINGLE_TOKENS
- HEREDOC_TAG_IS_IDENTIFIER
- HEREDOC_STRING_ALTERNATIVE
- WHITE_SPACE
- COMMANDS
- COMMAND_PREFIX_TOKENS
- NUMERIC_LITERALS
- COMMENTS
- dialect
- reset
- tokenize
- tokenize_rs
- size
- sql
- tokens
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
CHARSET_TRANSLATORS =
{'UNICODE_TO_UNICODE_Halfwidth', 'UNICODE_TO_UNICODE_NFC', 'UNICODE_TO_UNICODE_FoldSpace', 'KANJI1_KANJISJIS_TO_UNICODE', 'GRAPHIC_TO_UNICODE_PadSpace', 'GRAPHIC_TO_KANJISJIS', 'KANJISJIS_TO_GRAPHIC', 'UNICODE_TO_KANJI1_KANJISJIS', 'UNICODE_TO_LOCALE', 'LATIN_TO_UNICODE', 'GRAPHIC_TO_LATIN', 'UNICODE_TO_LATIN', 'KANJI1_KanjiEUC_TO_UNICODE', 'UNICODE_TO_GRAPHIC_VarGraphic', 'LATIN_TO_KANJISJIS', 'KANJISJIS_TO_LATIN', 'UNICODE_TO_KANJISJIS', 'KANJI1_SBC_TO_UNICODE', 'GRAPHIC_TO_UNICODE', 'UNICODE_TO_KANJI1_KanjiEUC', 'UNICODE_TO_UNICODE_NFKD', 'UNICODE_TO_GRAPHIC', 'UNICODE_TO_KANJI1_SBC', 'LOCALE_TO_UNICODE', 'UNICODE_TO_KANJI1_KanjiEBCDIC', 'UNICODE_TO_UNICODE_NFD', 'KANJISJIS_TO_UNICODE', 'UNICODE_TO_UNICODE_NFKC', 'UNICODE_TO_GRAPHIC_PadGraphic', 'LATIN_TO_GRAPHIC', 'KANJI1_KanjiEBCDIC_TO_UNICODE', 'UNICODE_TO_UNICODE_Fullwidth'}
FUNC_TOKENS =
{<TokenType.VAR: 'VAR'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UINT: 'UINT'>, <TokenType.XOR: 'XOR'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.INT256: 'INT256'>, <TokenType.OFFSET: 'OFFSET'>, <TokenType.IPV6: 'IPV6'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ROW: 'ROW'>, <TokenType.RIGHT: 'RIGHT'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TEXT: 'TEXT'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.RANGE: 'RANGE'>, <TokenType.LEFT: 'LEFT'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.ANY: 'ANY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ALL: 'ALL'>, <TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.DATE32: 'DATE32'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BIT: 'BIT'>, <TokenType.CHAR: 'CHAR'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.RLIKE: 'RLIKE'>, <TokenType.ILIKE: 'ILIKE'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIME: 'TIME'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.IPV4: 'IPV4'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.INT128: 'INT128'>, <TokenType.UINT256: 'UINT256'>, <TokenType.SOME: 'SOME'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.JSON: 'JSON'>, <TokenType.YEAR: 'YEAR'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.GLOB: 'GLOB'>, <TokenType.WINDOW: 'WINDOW'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UNNEST: 'UNNEST'>, <TokenType.JSONB: 'JSONB'>, <TokenType.INT: 'INT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.DATE: 'DATE'>, <TokenType.IDENTIFIER: 'IDENTIFIER'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.INET: 'INET'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TABLE: 'TABLE'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.UINT128: 'UINT128'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.XML: 'XML'>, <TokenType.UUID: 'UUID'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.FIRST: 'FIRST'>, <TokenType.MAP: 'MAP'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.INSERT: 'INSERT'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.FILTER: 'FILTER'>, <TokenType.LIKE: 'LIKE'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>}
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.VAR: 'VAR'>, <TokenType.PROCEDURE: 'PROCEDURE'>, <TokenType.FALSE: 'FALSE'>, <TokenType.VARCHAR: 'VARCHAR'>, <TokenType.SMALLINT: 'SMALLINT'>, <TokenType.UINT: 'UINT'>, <TokenType.SEMI: 'SEMI'>, <TokenType.ISNULL: 'ISNULL'>, <TokenType.INT256: 'INT256'>, <TokenType.ROWS: 'ROWS'>, <TokenType.ANTI: 'ANTI'>, <TokenType.IPV6: 'IPV6'>, <TokenType.DATETIME64: 'DATETIME64'>, <TokenType.ROW: 'ROW'>, <TokenType.IS: 'IS'>, <TokenType.NEXT: 'NEXT'>, <TokenType.UMEDIUMINT: 'UMEDIUMINT'>, <TokenType.ARRAY: 'ARRAY'>, <TokenType.IPADDRESS: 'IPADDRESS'>, <TokenType.DATETIME: 'DATETIME'>, <TokenType.ASC: 'ASC'>, <TokenType.TIMESTAMP_S: 'TIMESTAMP_S'>, <TokenType.AGGREGATEFUNCTION: 'AGGREGATEFUNCTION'>, <TokenType.COMMAND: 'COMMAND'>, <TokenType.REFERENCES: 'REFERENCES'>, <TokenType.REPLACE: 'REPLACE'>, <TokenType.TRUE: 'TRUE'>, <TokenType.IPPREFIX: 'IPPREFIX'>, <TokenType.TEXT: 'TEXT'>, <TokenType.BIGINT: 'BIGINT'>, <TokenType.NESTED: 'NESTED'>, <TokenType.KILL: 'KILL'>, <TokenType.BINARY: 'BINARY'>, <TokenType.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>, <TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>, <TokenType.PRAGMA: 'PRAGMA'>, <TokenType.DESCRIBE: 'DESCRIBE'>, <TokenType.SET: 'SET'>, <TokenType.TIMESTAMP_MS: 'TIMESTAMP_MS'>, <TokenType.CASE: 'CASE'>, <TokenType.RANGE: 'RANGE'>, <TokenType.DATEMULTIRANGE: 'DATEMULTIRANGE'>, <TokenType.NULL: 'NULL'>, <TokenType.PIVOT: 'PIVOT'>, <TokenType.ENUM16: 'ENUM16'>, <TokenType.UNPIVOT: 'UNPIVOT'>, <TokenType.KEEP: 'KEEP'>, <TokenType.ORDINALITY: 'ORDINALITY'>, <TokenType.FINAL: 'FINAL'>, <TokenType.INT8MULTIRANGE: 'INT8MULTIRANGE'>, <TokenType.ANY: 'ANY'>, <TokenType.ENUM: 'ENUM'>, <TokenType.SETTINGS: 'SETTINGS'>, <TokenType.VOLATILE: 'VOLATILE'>, <TokenType.TSRANGE: 'TSRANGE'>, <TokenType.IMAGE: 'IMAGE'>, <TokenType.LONGTEXT: 'LONGTEXT'>, <TokenType.VARIANT: 'VARIANT'>, <TokenType.STRUCT: 'STRUCT'>, <TokenType.AUTO_INCREMENT: 'AUTO_INCREMENT'>, <TokenType.MONEY: 'MONEY'>, <TokenType.ALL: 'ALL'>, <TokenType.VIEW: 'VIEW'>, <TokenType.SMALLSERIAL: 'SMALLSERIAL'>, <TokenType.TIMETZ: 'TIMETZ'>, <TokenType.MERGE: 'MERGE'>, <TokenType.TINYBLOB: 'TINYBLOB'>, <TokenType.HSTORE: 'HSTORE'>, <TokenType.OVERWRITE: 'OVERWRITE'>, <TokenType.DATE32: 'DATE32'>, <TokenType.USERDEFINED: 'USERDEFINED'>, <TokenType.BIT: 'BIT'>, <TokenType.CHAR: 'CHAR'>, <TokenType.MODEL: 'MODEL'>, <TokenType.TSTZMULTIRANGE: 'TSTZMULTIRANGE'>, <TokenType.SHOW: 'SHOW'>, <TokenType.TIMESTAMP: 'TIMESTAMP'>, <TokenType.UDECIMAL: 'UDECIMAL'>, <TokenType.INT8RANGE: 'INT8RANGE'>, <TokenType.TIME: 'TIME'>, <TokenType.LONGBLOB: 'LONGBLOB'>, <TokenType.SERIAL: 'SERIAL'>, <TokenType.RECURSIVE: 'RECURSIVE'>, <TokenType.TOP: 'TOP'>, <TokenType.FIXEDSTRING: 'FIXEDSTRING'>, <TokenType.STORAGE_INTEGRATION: 'STORAGE_INTEGRATION'>, <TokenType.CURRENT_DATE: 'CURRENT_DATE'>, <TokenType.NULLABLE: 'NULLABLE'>, <TokenType.CURRENT_TIMESTAMP: 'CURRENT_TIMESTAMP'>, <TokenType.DATABASE: 'DATABASE'>, <TokenType.BIGDECIMAL: 'BIGDECIMAL'>, <TokenType.IPV4: 'IPV4'>, <TokenType.BEGIN: 'BEGIN'>, <TokenType.DELETE: 'DELETE'>, <TokenType.TINYINT: 'TINYINT'>, <TokenType.DICTIONARY: 'DICTIONARY'>, <TokenType.SIMPLEAGGREGATEFUNCTION: 'SIMPLEAGGREGATEFUNCTION'>, <TokenType.CONSTRAINT: 'CONSTRAINT'>, <TokenType.BOOLEAN: 'BOOLEAN'>, <TokenType.USMALLINT: 'USMALLINT'>, <TokenType.UNKNOWN: 'UNKNOWN'>, <TokenType.CURRENT_TIME: 'CURRENT_TIME'>, <TokenType.OPERATOR: 'OPERATOR'>, <TokenType.UPDATE: 'UPDATE'>, <TokenType.INT128: 'INT128'>, <TokenType.PARTITION: 'PARTITION'>, <TokenType.UINT256: 'UINT256'>, <TokenType.SOME: 'SOME'>, <TokenType.BPCHAR: 'BPCHAR'>, <TokenType.TINYTEXT: 'TINYTEXT'>, <TokenType.TSTZRANGE: 'TSTZRANGE'>, <TokenType.DATERANGE: 'DATERANGE'>, <TokenType.CACHE: 'CACHE'>, <TokenType.VARBINARY: 'VARBINARY'>, <TokenType.JSON: 'JSON'>, <TokenType.YEAR: 'YEAR'>, <TokenType.ENUM8: 'ENUM8'>, <TokenType.PERCENT: 'PERCENT'>, <TokenType.SCHEMA: 'SCHEMA'>, <TokenType.GEOGRAPHY: 'GEOGRAPHY'>, <TokenType.NVARCHAR: 'NVARCHAR'>, <TokenType.FOREIGN_KEY: 'FOREIGN_KEY'>, <TokenType.REFRESH: 'REFRESH'>, <TokenType.USE: 'USE'>, <TokenType.DESC: 'DESC'>, <TokenType.SMALLMONEY: 'SMALLMONEY'>, <TokenType.NCHAR: 'NCHAR'>, <TokenType.FORMAT: 'FORMAT'>, <TokenType.HLLSKETCH: 'HLLSKETCH'>, <TokenType.DECIMAL: 'DECIMAL'>, <TokenType.COLLATE: 'COLLATE'>, <TokenType.TIMESTAMPTZ: 'TIMESTAMPTZ'>, <TokenType.EXISTS: 'EXISTS'>, <TokenType.ROWVERSION: 'ROWVERSION'>, <TokenType.NUMRANGE: 'NUMRANGE'>, <TokenType.INT4RANGE: 'INT4RANGE'>, <TokenType.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>, <TokenType.UNIQUE: 'UNIQUE'>, <TokenType.JSONB: 'JSONB'>, <TokenType.INT: 'INT'>, <TokenType.INDEX: 'INDEX'>, <TokenType.DIV: 'DIV'>, <TokenType.MEDIUMINT: 'MEDIUMINT'>, <TokenType.FLOAT: 'FLOAT'>, <TokenType.DATE: 'DATE'>, <TokenType.COLUMN: 'COLUMN'>, <TokenType.FUNCTION: 'FUNCTION'>, <TokenType.EXECUTE: 'EXECUTE'>, <TokenType.UTINYINT: 'UTINYINT'>, <TokenType.INET: 'INET'>, <TokenType.UBIGINT: 'UBIGINT'>, <TokenType.INTERVAL: 'INTERVAL'>, <TokenType.TABLE: 'TABLE'>, <TokenType.UINT128: 'UINT128'>, <TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>, <TokenType.CURRENT_USER: 'CURRENT_USER'>, <TokenType.COMMENT: 'COMMENT'>, <TokenType.XML: 'XML'>, <TokenType.UUID: 'UUID'>, <TokenType.GEOMETRY: 'GEOMETRY'>, <TokenType.OBJECT_IDENTIFIER: 'OBJECT_IDENTIFIER'>, <TokenType.TIMESTAMP_NS: 'TIMESTAMP_NS'>, <TokenType.BIGSERIAL: 'BIGSERIAL'>, <TokenType.DOUBLE: 'DOUBLE'>, <TokenType.NUMMULTIRANGE: 'NUMMULTIRANGE'>, <TokenType.OBJECT: 'OBJECT'>, <TokenType.LOAD: 'LOAD'>, <TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>, <TokenType.COMMIT: 'COMMIT'>, <TokenType.FIRST: 'FIRST'>, <TokenType.MAP: 'MAP'>, <TokenType.TRUNCATE: 'TRUNCATE'>, <TokenType.OVERLAPS: 'OVERLAPS'>, <TokenType.LOWCARDINALITY: 'LOWCARDINALITY'>, <TokenType.END: 'END'>, <TokenType.FILTER: 'FILTER'>, <TokenType.ESCAPE: 'ESCAPE'>, <TokenType.TEMPORARY: 'TEMPORARY'>, <TokenType.INT4MULTIRANGE: 'INT4MULTIRANGE'>, <TokenType.SUPER: 'SUPER'>, <TokenType.CURRENT_DATETIME: 'CURRENT_DATETIME'>, <TokenType.TSMULTIRANGE: 'TSMULTIRANGE'>, <TokenType.DEFAULT: 'DEFAULT'>}
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
- 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
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
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
tablesample_sql( self, expression: sqlglot.expressions.TableSample, sep: str = ' AS ', tablesample_keyword: Optional[str] = None) -> 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)
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})"
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)
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