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Apache Spark commented on SPARK-25979: -------------------------------------- User 'gengliangwang' has created a pull request for this issue: https://github.com/apache/spark/pull/22987 > Window function: allow parentheses around window reference > ---------------------------------------------------------- > > Key: SPARK-25979 > URL: https://issues.apache.org/jira/browse/SPARK-25979 > Project: Spark > Issue Type: Bug > Components: SQL > Affects Versions: 3.0.0 > Reporter: Gengliang Wang > Priority: Minor > > Very minor parser bug, but possibly problematic for code-generated queries: > Consider the following two queries: > {code} > SELECT avg(k) OVER (w) FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER > BY 1 > {code} > and > {code} > SELECT avg(k) OVER w FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY > 1 > {code} > The former, with parens around the OVER condition, fails to parse while the > latter, without parens, succeeds: > {code} > 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 > -------------------^^^ > {code} > This was found when running the cockroach DB tests. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org