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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1191) POCast throws exception for certain sequences of LOAD, FILTER, FORACH
Date Fri, 15 Jan 2010 12:19:54 GMT

    [ https://issues.apache.org/jira/browse/PIG-1191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12800678#action_12800678

Hadoop QA commented on PIG-1191:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 899502.

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

    +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

    +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-h8.grid.sp2.yahoo.net/176/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/176/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/176/console

This message is automatically generated.

> POCast throws exception for certain sequences of LOAD, FILTER, FORACH
> ---------------------------------------------------------------------
>                 Key: PIG-1191
>                 URL: https://issues.apache.org/jira/browse/PIG-1191
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.6.0
>            Reporter: Ankur
>            Assignee: Pradeep Kamath
>            Priority: Blocker
>         Attachments: PIG-1191-1.patch
> When using a custom load/store function, one that returns complex data (map of maps,
list of maps), for certain sequences  of LOAD, FILTER, FOREACH pig script throws an exception
of the form -
> org.apache.pig.backend.executionengine.ExecException: ERROR 1075: Received a bytearray
from the UDF. Cannot determine how to convert the bytearray to <actual-type>
> at org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNext(POCast.java:639)
> ...
> Looking through the code of POCast, apparently the operator was unable to find the right
load function for doing the conversion and consequently bailed out with the exception failing
the entire pig script.

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