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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4521) Auto join conversion fails in certain cases (empty tables, empty partitions, no partitions)
Date Tue, 21 May 2013 22:42:21 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663516#comment-13663516
] 

Hudson commented on HIVE-4521:
------------------------------

Integrated in Hive-trunk-hadoop2 #205 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/205/])
    HIVE-4521 Auto join conversion fails in certain cases (Gunther Hagleitner via
omalley) (Revision 1484623)

     Result = ABORTED
omalley : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1484623
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AbstractBucketJoinProc.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AvgPartitionSizeBasedBigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/TableSizeBasedBigTableSelectorForAutoSMJ.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/CommonJoinTaskDispatcher.java
* /hive/trunk/ql/src/test/queries/clientpositive/auto_join32.q
* /hive/trunk/ql/src/test/results/clientpositive/auto_join32.q.out

                
> Auto join conversion fails in certain cases (empty tables, empty partitions, no partitions)
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-4521
>                 URL: https://issues.apache.org/jira/browse/HIVE-4521
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Gunther Hagleitner
>            Assignee: Gunther Hagleitner
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4521.1.patch, HIVE-4521.2.patch
>
>
> Automatic join conversion for both map joins as well as smb joins fails when tables,
files or partitions are empty (see test cases in patch). Error messages include: "Big Table
Alias is null" and "Divide by Zero".

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