Fix(bigquery): allow overlaps to be used as an identifier (#2273)

tobymao · Sep 20, 2023 · ed8714f · ed8714f
1 parent ccff88c
commit ed8714f
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diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py
@@ -343,6 +343,9 @@ class Parser(parser.Parser):
             "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
         }
 
+        RANGE_PARSERS = parser.Parser.RANGE_PARSERS.copy()
+        RANGE_PARSERS.pop(TokenType.OVERLAPS, None)
+
         NULL_TOKENS = {TokenType.NULL, TokenType.UNKNOWN}
 
         def _parse_table_part(self, schema: bool = False) -> t.Optional[exp.Expression]:

diff --git a/sqlglot/parser.py b/sqlglot/parser.py
@@ -285,6 +285,7 @@ class Parser(metaclass=_Parser):
         TokenType.NEXT,
         TokenType.OFFSET,
         TokenType.ORDINALITY,
+        TokenType.OVERLAPS,
         TokenType.OVERWRITE,
         TokenType.PARTITION,
         TokenType.PERCENT,

diff --git a/tests/dialects/test_bigquery.py b/tests/dialects/test_bigquery.py
@@ -106,6 +106,10 @@ def test_bigquery(self):
         self.validate_identity(
             "SELECT LAST_VALUE(a IGNORE NULLS) OVER y FROM x WINDOW y AS (PARTITION BY CATEGORY)",
         )
+        self.validate_identity(
+            "SELECT a overlaps",
+            "SELECT a AS overlaps",
+        )
         self.validate_identity(
             "SELECT y + 1 z FROM x GROUP BY y + 1 ORDER BY z",
             "SELECT y + 1 AS z FROM x GROUP BY z ORDER BY z",