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https://issues.apache.org/jira/browse/PIG-532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12679738#action_12679738
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Santhosh Srinivasan commented on PIG-532:
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I am reviewing this patch
> Casting a field removes its alias.
> ----------------------------------
>
> Key: PIG-532
> URL: https://issues.apache.org/jira/browse/PIG-532
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: types_branch
> Reporter: Alan Gates
> Assignee: Thejas M Nair
> Priority: Minor
> Fix For: types_branch
>
> Attachments: 532.patch
>
>
> Given a script like:
> {code}
> a = loader 'myfile' as (x, y);
> b = foreach a generate (int)x, (double)y;
> c = group a by x;
> {code}
> you will get an error that x is an unknown alias. The cast operator is not
> carrying through the alias. It should.
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