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https://issues.apache.org/jira/browse/SPARK-12577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15085762#comment-15085762
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Apache Spark commented on SPARK-12577:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/10620
> better support of parentheses in partition by and order by clause of window
> function's over clause
> --------------------------------------------------------------------------------------------------
>
> Key: SPARK-12577
> URL: https://issues.apache.org/jira/browse/SPARK-12577
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
>
> Right now, Hive's parser support
> {code}
> -- PASS
> SELECT SUM(1) OVER (PARTITION BY a + 1 - b * c / d FROM src;
> SELECT SUM(1) OVER (PARTITION BY (a + 1 - b * c / d) FROM src;
> {code}
> But, the following one is not accepted
> {code}
> -- FAIL
> SELECT SUM(1) OVER (PARTITION BY (a) + 1 - b * c / d) FROM src;
> {code}
> We should fix it in our own parser.
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