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https://issues.apache.org/jira/browse/HIVE-4689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13699114#comment-13699114
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Hudson commented on HIVE-4689:
------------------------------
Integrated in Hive-trunk-h0.21 #2177 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/2177/])
HIVE-4689 : For outerjoins, joinEmitInterval might make wrong result (Navis
via Ashutosh Chauhan) (Revision 1499453)
Result = FAILURE
hashutosh :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1499453
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/JoinOperator.java
* /hive/trunk/ql/src/test/results/clientpositive/join_1to1.q.out
> For outerjoins, joinEmitInterval might make wrong result
> --------------------------------------------------------
>
> Key: HIVE-4689
> URL: https://issues.apache.org/jira/browse/HIVE-4689
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.11.0
> Reporter: Navis
> Assignee: Navis
> Fix For: 0.12.0
>
> Attachments: HIVE-4689.D11211.1.patch
>
>
> Alias filter tag is calculated for each group and used for outer joins. But
> if joinEmitInterval is smaller than the group size, pre-matured alias filter
> tag would be used and might introduce different(wrong) result.
> It can be observed in join_1to1.q test but I cannot imagine proper solution
> which does not override intention of joinEmitInterval. Should it be disabled
> for outer joins?
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