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https://issues.apache.org/jira/browse/HIVE-4186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13623034#comment-13623034
]
Hudson commented on HIVE-4186:
------------------------------
Integrated in Hive-trunk-hadoop2 #138 (See
[https://builds.apache.org/job/Hive-trunk-hadoop2/138/])
HIVE-4186 : NPE in ReduceSinkDeDuplication (Harish Butani via Ashutosh
Chauhan) (Revision 1458524)
Result = FAILURE
hashutosh :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1458524
Files :
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/ReduceSinkDeDuplication.java
* /hive/trunk/ql/src/test/queries/clientpositive/reducesink_dedup.q
* /hive/trunk/ql/src/test/results/clientpositive/reducesink_dedup.q.out
> NPE in ReduceSinkDeDuplication
> ------------------------------
>
> Key: HIVE-4186
> URL: https://issues.apache.org/jira/browse/HIVE-4186
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Harish Butani
> Assignee: Harish Butani
> Fix For: 0.11.0
>
> Attachments: HIVE-4186.1.patch.txt, HIVE-4186.2.patch.txt,
> HIVE-4186.3.patch.txt
>
>
> When you have a sequence of RedueSinks on constants you get this error:
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.optimizer.ReduceSinkDeDuplication$ReduceSinkDeduplicateProcFactory$ReducerReducerProc.getPartitionAndKeyColumnMapping(ReduceSinkDeDuplication.java:416)
> {noformat}
> The e.g. to generate this si:
> {noformat}
> select p_name from (select p_name from part distribute by 1 sort by 1) p
> distribute by 1 sort by 1
> {noformat}
> Sorry for the contrived e.g., but this actually happens when we stack
> windowing clauses (see PTF-Windowing branch)
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