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

["Reynold Xin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-12578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin resolved SPARK-12578.
---------------------------------
       Resolution: Fixed
         Assignee: Liang-Chi Hsieh
    Fix Version/s: 2.0.0

> 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
>            Assignee: Liang-Chi Hsieh
>             Fix For: 2.0.0
>
>
> 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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