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https://issues.apache.org/jira/browse/PIG-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-1128:
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Status: Patch Available (was: Open)
> column pruning causing failure when foreach has user-specified schema
> ---------------------------------------------------------------------
>
> Key: PIG-1128
> URL: https://issues.apache.org/jira/browse/PIG-1128
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.6.0, 0.7.0
> Reporter: Thejas M Nair
> Assignee: Daniel Dai
> Fix For: 0.6.0
>
> Attachments: PIG-1128-1.patch
>
>
> Issue is seen in 0.6.0 and trunk.
> grunt> l = load 'dummy.txt' as ( c1 : chararray, c2 : int);
>
> grunt> f1 = foreach l generate c1 as c1 : chararray, c2 as c2 : int, 'CA' as
> state : chararray;
> grunt> f2 = foreach f1 generate c1 as c1 : chararray;
>
> grunt> explain f2;
> 2009-12-04 13:11:19,010 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1022: Type mismatch merging schema prefix. Field Schema: chararray. Other
> Field Schema: c2: int
> ( it does not matter if the new schema has new/different column name - )
> grunt>l = load 'dummy.txt' as ( c1 : chararray, c2 : int);
> grunt>f1 = foreach l generate c1 as c11 : chararray, c2 as c22 : int, 'CA' as
> state : chararray;
> grunt>f2 = foreach f1 generate c11 as c111 : chararray;
> grunt> explain f2;
> 2009-12-04 13:13:01,462 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1022: Type mismatch merging schema prefix. Field Schema: chararray. Other
> Field Schema: c22: int
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