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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1366) PigStorage's pushProjection implementation results in NPE under certain data conditions
Date Thu, 08 Apr 2010 09:25:36 GMT

    [ https://issues.apache.org/jira/browse/PIG-1366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854873#action_12854873
] 

Hadoop QA commented on PIG-1366:
--------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12441109/PIG-1366.patch
  against trunk revision 931764.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/277/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/277/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h7.grid.sp2.yahoo.net/277/console

This message is automatically generated.

> PigStorage's pushProjection implementation results in NPE under certain data conditions
> ---------------------------------------------------------------------------------------
>
>                 Key: PIG-1366
>                 URL: https://issues.apache.org/jira/browse/PIG-1366
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.6.0, 0.7.0
>            Reporter: Pradeep Kamath
>            Assignee: Pradeep Kamath
>             Fix For: 0.7.0
>
>         Attachments: PIG-1366.patch
>
>
> Under the following conditions, a NullPointerException is caused when PigStorage is used:
> If in the script, only the 2nd and 3rd column of the data (say) are used, the PruneColumns
optimization passes this information to PigStorage through the pushProjection() method. If
the data contains a row with only one column (malformed data due to missing cols in certain
rows), PigStorage returns a Tuple backed by a null ArrayList. Subsequent projection operations
on this tuple result in the NPE.

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