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From "Aihua Xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11962) Improve windowing_windowspec2.q tests to return consistent results
Date Mon, 28 Sep 2015 19:11:04 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aihua Xu updated HIVE-11962:
----------------------------
    Attachment: HIVE-11962.patch

Updated the query to return the unique order for each partition so that the partition aggregation
function will return consistent results across different platform. 

> 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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