Minor Description
Very minor parser bug, but possibly problematic for code-generated queries:
Consider the following two queries:
SELECT avg(k) OVER (w) FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1
and
SELECT avg(k) OVER w FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1
The former, with parens around the OVER condition, fails to parse while the latter, without parens, succeeds:
Error in SQL statement: ParseException: mismatched input '(' expecting {<EOF>, ',', 'FROM', 'WHERE', 'GROUP', 'ORDER', 'HAVING', 'LIMIT', 'LATERAL', 'WINDOW', 'UNION', 'EXCEPT', 'MINUS', 'INTERSECT', 'SORT', 'CLUSTER', 'DISTRIBUTE'}(line 1, pos 19) == SQL == SELECT avg(k) OVER (w) FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1 -------------------^^^
This was found when running the cockroach DB tests.
