[jira] [Commented] (HIVE-11962) Improve windowing_windowspec2.q tests to return consistent results

["Szehon Ho (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-11962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14933827#comment-14933827 ] 

Szehon Ho commented on HIVE-11962:
----------------------------------

Makes sense to me, thanks Aihua +1

> Improve windowing_windowspec2.q tests to return consistent results
> ------------------------------------------------------------------
>
>                 Key: HIVE-11962
>                 URL: https://issues.apache.org/jira/browse/HIVE-11962
>             Project: Hive
>          Issue Type: Test
>          Components: Test
>    Affects Versions: 2.0.0
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>            Priority: Trivial
>         Attachments: HIVE-11962.patch
>
>
> Upstream test result for windowing_windowspec2.q seems to return consistent result while we have observe that in a different test env, the result could be slightly different. 
> e.g., for the following query, the value t could be the same in each partition of ts. So the row order could be either for those rows. I haven't looked further why it causes that difference yet.
> {noformat} 
> select ts, f, max(f) over (partition by ts order by t rows between 2 preceding and 1 preceding) from over10k limit 100;
> {noformat}



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