[jira] [Commented] (HIVE-9053) select constant in union all followed by group by gives wrong result

["Thejas M Nair (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-9053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14281155#comment-14281155 ] 

Thejas M Nair commented on HIVE-9053:
-------------------------------------

Looks like a fix we should include in hive 0.14 branch as well.


> select constant in union all followed by group by gives wrong result
> --------------------------------------------------------------------
>
>                 Key: HIVE-9053
>                 URL: https://issues.apache.org/jira/browse/HIVE-9053
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.13.0, 0.14.0
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>             Fix For: 0.15.0
>
>         Attachments: HIVE-9053.01.patch, HIVE-9053.02.patch, HIVE-9053.03.patch, HIVE-9053.04.patch
>
>
> Here is the the way to reproduce with q test:
> select key from (select '1' as key from src union all select key from src)tab group by key;
> will give
> OK
> NULL
> 1
> This is not correct as src contains many other keys.



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