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https://issues.apache.org/jira/browse/PIG-1064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pradeep Kamath updated PIG-1064:
--------------------------------
Attachment: PIG-1064-3.patch
There were a couple of new tests added by a recent patch (PIG-1038) which had
group by star and broke the tests with this patch - attached patch with fix in
the tests.
> Behvaiour of COGROUP with and without schema when using "*" operator
> --------------------------------------------------------------------
>
> Key: PIG-1064
> URL: https://issues.apache.org/jira/browse/PIG-1064
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.6.0
> Reporter: Viraj Bhat
> Assignee: Pradeep Kamath
> Fix For: 0.6.0
>
> Attachments: PIG-1064-2.patch, PIG-1064-3.patch, PIG-1064.patch
>
>
> I have 2 tab separated files, "1.txt" and "2.txt"
> $ cat 1.txt
> ====================
> 1 2
> 2 3
> ====================
> $ cat 2.txt
> 1 2
> 2 3
> I use COGROUP feature of Pig in the following way:
> $java -cp pig.jar:$HADOOP_HOME org.apache.pig.Main
> {code}
> grunt> A = load '1.txt';
> grunt> B = load '2.txt' as (b0, b1);
> grunt> C = cogroup A by *, B by *;
> {code}
> 2009-10-29 12:46:04,150 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1012: Each COGroup input has to have the same number of inner plans
> Details at logfile: pig_1256845224752.log
> ==========================================================
> If I reverse, the order of the schema's
> {code}
> grunt> A = load '1.txt' as (a0, a1);
> grunt> B = load '2.txt';
> grunt> C = cogroup A by *, B by *;
> {code}
> 2009-10-29 12:49:27,869 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1013: Grouping attributes can either be star (*) or a list of expressions,
> but not both.
> Details at logfile: pig_1256845224752.log
> ==========================================================
> Now running without schema??
> {code}
> grunt> A = load '1.txt';
> grunt> B = load '2.txt';
> grunt> C = cogroup A by *, B by *;
> grunt> dump C;
> {code}
> 2009-10-29 12:55:37,202 [main] INFO
> org.apache.pig.backend.local.executionengine.LocalPigLauncher - Successfully
> stored result in: "file:/tmp/temp-319926700/tmp-1990275961"
> 2009-10-29 12:55:37,202 [main] INFO
> org.apache.pig.backend.local.executionengine.LocalPigLauncher - Records
> written : 2
> 2009-10-29 12:55:37,202 [main] INFO
> org.apache.pig.backend.local.executionengine.LocalPigLauncher - Bytes written
> : 154
> 2009-10-29 12:55:37,202 [main] INFO
> org.apache.pig.backend.local.executionengine.LocalPigLauncher - 100% complete!
> 2009-10-29 12:55:37,202 [main] INFO
> org.apache.pig.backend.local.executionengine.LocalPigLauncher - Success!!
> ((1,2),{(1,2)},{(1,2)})
> ((2,3),{(2,3)},{(2,3)})
> ==========================================================
> Is this a bug or a feature?
> Viraj
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