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https://issues.apache.org/jira/browse/PIG-888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12732224#action_12732224
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Daniel Dai commented on PIG-888:
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javac warning is caused by unchecked cast to a template class. By convention,
we do not suppress this warning in Pig.
> Pig do not pass udf to the backend in some situation
> ----------------------------------------------------
>
> Key: PIG-888
> URL: https://issues.apache.org/jira/browse/PIG-888
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.3.0
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.4.0
>
> Attachments: PIG-888-1.patch, PIG-888-2.patch
>
>
> If we use udf and do not use register, in some situation backend will
> complain that it cannot resolve class. For example, the following script do
> not work.
> A = load '1.txt' using udf1();
> B = load '2.txt';
> C = join A by $0, B by $0;
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