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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2955) Queries consists of metadata-only-query returns always empty value
Date Wed, 09 Jan 2013 10:29:44 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548169#comment-13548169
] 

Hudson commented on HIVE-2955:
------------------------------

Integrated in Hive-trunk-hadoop2 #54 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/54/])
    HIVE-2955 Queries consists of metadata-only-query returns always empty value
(Navis via namit) (Revision 1352771)

     Result = ABORTED
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1352771
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/ExecDriver.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/MetadataOnlyOptimizer.java
* /hive/trunk/ql/src/test/queries/clientpositive/metadataonly1.q
* /hive/trunk/ql/src/test/results/clientpositive/metadataonly1.q.out

                
> Queries consists of metadata-only-query returns always empty value
> ------------------------------------------------------------------
>
>                 Key: HIVE-2955
>                 URL: https://issues.apache.org/jira/browse/HIVE-2955
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>             Fix For: 0.10.0
>
>         Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2955.D2817.1.patch
>
>
> For partitioned table, simple query on partition column returns always null or empty
value, for example,
> {code}
> create table emppart(empno int, ename string) partitioned by (deptno int);
> .. load partitions..
> select distinct deptno from emppart; // empty
> select min(deptno), max(deptno) from emppart;  // NULL and NULL
> {code}

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