[jira] Assigned: (PIG-438) Handle realiasing of existing Alias (A=B;)

["Alan Gates (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alan Gates reassigned PIG-438:
------------------------------

    Assignee: Xuefu Zhang  (was: Alan Gates)

> 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: Xuefu Zhang
>            Priority: Minor
>             Fix For: 0.9.0
>
>
> 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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