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Diffstat (limited to '')
| -rw-r--r-- | sqlglot/dialects/redshift.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sqlglot/dialects/redshift.py b/sqlglot/dialects/redshift.py index 88e4448..b70a8a1 100644 --- a/sqlglot/dialects/redshift.py +++ b/sqlglot/dialects/redshift.py @@ -31,6 +31,7 @@ class Redshift(Postgres): RESOLVES_IDENTIFIERS_AS_UPPERCASE = None SUPPORTS_USER_DEFINED_TYPES = False + INDEX_OFFSET = 0 TIME_FORMAT = "'YYYY-MM-DD HH:MI:SS'" TIME_MAPPING = { @@ -57,6 +58,24 @@ class Redshift(Postgres): "STRTOL": exp.FromBase.from_arg_list, } + def _parse_table( + self, + schema: bool = False, + joins: bool = False, + alias_tokens: t.Optional[t.Collection[TokenType]] = None, + parse_bracket: bool = False, + ) -> t.Optional[exp.Expression]: + # Redshift supports UNPIVOTing SUPER objects, e.g. `UNPIVOT foo.obj[0] AS val AT attr` + unpivot = self._match(TokenType.UNPIVOT) + table = super()._parse_table( + schema=schema, + joins=joins, + alias_tokens=alias_tokens, + parse_bracket=parse_bracket, + ) + + return self.expression(exp.Pivot, this=table, unpivot=True) if unpivot else table + def _parse_types( self, check_func: bool = False, schema: bool = False, allow_identifiers: bool = True ) -> t.Optional[exp.Expression]: |