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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1289) PIG Join fails while doing a filter on joined data
Date Wed, 17 Mar 2010 06:38:27 GMT

    [ https://issues.apache.org/jira/browse/PIG-1289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12846315#action_12846315
] 

Hadoop QA commented on PIG-1289:
--------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12438992/PIG-1289-2.patch
  against trunk revision 924034.

    +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 failed 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/253/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/253/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: http://hudson.zones.apache.org/hudson/job/Pig-Patch-h8.grid.sp2.yahoo.net/253/console

This message is automatically generated.

> PIG Join fails while doing a filter on joined data
> --------------------------------------------------
>
>                 Key: PIG-1289
>                 URL: https://issues.apache.org/jira/browse/PIG-1289
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.6.0
>            Reporter: Karim Saadah
>            Assignee: Daniel Dai
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: PIG-1289-1.patch, PIG-1289-2.patch
>
>
> PIG Join fails while doing a filter on joined data
> Here are the steps to reproduce it:
> -bash-3.1$ pig -latest -x local
> grunt> a = load 'first.dat' using PigStorage('\u0001') as (f1:int, f2:chararray);
> grunt> DUMP a;
> (1,A)
> (2,B)
> (3,C)
> (4,D)
> grunt> b = load 'second.dat' using PigStorage() as (f3:chararray);
> grunt> DUMP b;
> (A)
> (D)
> (E)
> grunt> c = join a by f2 LEFT OUTER, b by f3;
> grunt> DUMP c;
> (1,A,A)
> (2,B,)
> (3,C,)
> (4,D,D)
> grunt> describe c;
> c: {a::f1: int,a::f2: chararray,b::f3: chararray}
> grunt> d = filter c by (f3 is null or f3 =='');
> grunt> dump d;
> 2010-03-03 15:00:37,129 [main] INFO  org.apache.pig.impl.logicalLayer.optimizer.PruneColumns
- No column pruned for b
> 2010-03-03 15:00:37,129 [main] INFO  org.apache.pig.impl.logicalLayer.optimizer.PruneColumns
- No map keys pruned for b
> 2010-03-03 15:00:37,129 [main] INFO  org.apache.pig.impl.logicalLayer.optimizer.PruneColumns
- No column pruned for a
> 2010-03-03 15:00:37,130 [main] INFO  org.apache.pig.impl.logicalLayer.optimizer.PruneColumns
- No map keys pruned for a
> 2010-03-03 15:00:37,130 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1002: Unable
to store alias d
> This one is failing too:
> grunt> d = filter c by (b::f3 is null or b::f3 =='');
> or this one not returning results as expected:
> grunt> d = foreach c generate f1 as f1, f2 as f2, f3 as f3;
> grunt> e = filter d by (f3 is null or f3 =='');
> grunt> DUMP e;
> (1,A,)
> (2,B,)
> (3,C,)
> (4,D,)
> while the expected result is
> (2,B,)
> (3,C,)

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