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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-888) Pig do not pass udf to the backend in some situation
Date Thu, 16 Jul 2009 02:13:14 GMT

     [ https://issues.apache.org/jira/browse/PIG-888?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai updated PIG-888:
---------------------------

    Attachment: PIG-888-1.patch

The problem is that we didn't copy udf properly when we merge mrplan of different inputs in
visitGlobalRearrange. Another related fix is that we should also deserialize import_list in
PigInputFormat (as we did in https://issues.apache.org/jira/browse/PIG-883). I put these two
fixes together in the patch.

> 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
>             Fix For: 0.4.0
>
>         Attachments: PIG-888-1.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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