[jira] [Commented] (SPARK-12578) Parser should not silently ignore the distinct keyword used in an aggregate function when OVER clause is used

["Apache Spark (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-12578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15076631#comment-15076631 ] 

Apache Spark commented on SPARK-12578:
--------------------------------------

User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/10557

> Parser should not silently ignore the distinct keyword used in an aggregate function when OVER clause is used
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-12578
>                 URL: https://issues.apache.org/jira/browse/SPARK-12578
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>
> Right now, when an aggregate function is used as window function and DISTINCT is used, Hive's parser silently drop the DISTINCT keyword. It is fine to not support DISTINCT aggregation in window function. But, it is not good to silently drop the keyword.



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