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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2013/03/20 19:05:15 UTC

[jira] [Commented] (HIVE-4193) OVER clauses with BETWEEN in the window definition produce wrong results

    [ https://issues.apache.org/jira/browse/HIVE-4193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607929#comment-13607929 ] 

Ashutosh Chauhan commented on HIVE-4193:
----------------------------------------

All of them have order by clause. Likely same root cause as HIVE-4190.
                
> OVER clauses with BETWEEN in the window definition produce wrong results
> ------------------------------------------------------------------------
>
>                 Key: HIVE-4193
>                 URL: https://issues.apache.org/jira/browse/HIVE-4193
>             Project: Hive
>          Issue Type: Bug
>          Components: PTF-Windowing
>    Affects Versions: 0.11.0
>            Reporter: Alan Gates
>
> Window queries that define a windowing clause that has a termination row often (though not all) return incorrect results.  For example, from our test queries all of the following return incorrect results:
> {code}
> select s, sum(f) over (partition by t order by b 
>        rows between current row and unbounded following) 
> from over100k;
> select s, avg(f) over (partition by b order by d 
>        rows between 5 preceding and current row) 
> from over100k;
> select s, avg(f) over (partition by bin order by s 
>        rows between current row and 5 following) 
> from over100k;
> select s, avg(d) over (partition by i order by f desc 
>        rows between 5 preceding and 5 following) 
> from over100k;
> {code}

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