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https://issues.apache.org/jira/browse/PIG-438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-438:
---------------------------
Fix Version/s: 0.10
> Handle realiasing of existing Alias (A=B;)
> -------------------------------------------
>
> Key: PIG-438
> URL: https://issues.apache.org/jira/browse/PIG-438
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.2.0
> Reporter: Pradeep Kamath
> Assignee: Jonathan Coveney
> Priority: Minor
> Fix For: 0.10, 0.11
>
> Attachments: PIG-438-2.patch, PIG-438.patch
>
>
> We do not handle re-aliasing of an existing alias - this should be handled
> correctly.
> The following script should work:
> {code}
> a = load 'studenttab10k';
> b = filter a by $1 > '25';
> c = b;
> -- use b
> d = cogroup b by $0, a by $0;
> e = foreach d generate flatten(b), flatten(a);
> dump e
> -- use c
> f = cogroup c by $0, a by $0;
> g = foreach f generate flatten(c), flatten(a);
> dump g;
> {code}
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