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From "Pradeep Kamath (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1366) PigStorage's pushProjection implementation results in NPE under certain data conditions
Date Fri, 09 Apr 2010 16:16:51 GMT

     [ https://issues.apache.org/jira/browse/PIG-1366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pradeep Kamath updated PIG-1366:
--------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]
          Status: Resolved  (was: Patch Available)

Patch committed to trunk and branch-0.7

> 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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