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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3343) Hive: Query misaligned result for Group by followed by Join with filter and skip a group-by result
Date Wed, 09 Jan 2013 10:31:53 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548308#comment-13548308
] 

Hudson commented on HIVE-3343:
------------------------------

Integrated in Hive-trunk-hadoop2 #54 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/54/])
    HIVE-3343 Hive: Query misaligned result for Group by followed by Join with filter
and skip a group-by result (Gang Tim Liu via namit) (Revision 1372727)

     Result = ABORTED
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1372727
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ColumnPrunerProcFactory.java
* /hive/trunk/ql/src/test/queries/clientpositive/ppd_join_filter.q
* /hive/trunk/ql/src/test/results/clientpositive/lateral_view_ppd.q.out
* /hive/trunk/ql/src/test/results/clientpositive/ppd_join_filter.q.out

                
> Hive: Query misaligned result for Group by followed by Join with filter and skip a group-by
result
> --------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-3343
>                 URL: https://issues.apache.org/jira/browse/HIVE-3343
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Gang Tim Liu
>            Assignee: Gang Tim Liu
>             Fix For: 0.10.0
>
>         Attachments: hive-3343.patch
>
>
> This simple Hive query would generate wrong result:
> select a.key, b.k2, b.k3
> from src a
> join (
>   select key, 
>          min(key) as k,
>          min(key)+1 as k1,
>          min(key)+2 as k2,
>          min(key)+3 as k3
>   from src
>   group by key
> ) b
> on a.key=b.key and b.k1 < 5;
> 0       3.0     1.0
> 0       3.0     1.0
> 0       3.0     1.0
> 2       5.0     3.0
> The right result is:
> 0	2.0	3.0
> 0	2.0	3.0
> 0	2.0	3.0
> 2	4.0	5.0

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