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https://issues.apache.org/jira/browse/PIG-2266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheolsoo Park updated PIG-2266:
-------------------------------
Attachment: PIG-2266.patch
Attaching Joe's change as a patch. This is needed for PIG-3015.
> bug with input file joining optimization in Pig
> -----------------------------------------------
>
> Key: PIG-2266
> URL: https://issues.apache.org/jira/browse/PIG-2266
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.9.0, 0.10.0
> Reporter: Joseph Adler
> Attachments: PIG-2266.patch
>
>
> In
> src/org/apache/pig/backend/hadoop/executionengine/mapReduceLayer/MRCompiler.java,
> the function hasTooManyInputFiles instantiated a LoadFunc instance, then
> calls setLocation before calling setUDFContextSignature. This is inconsistent
> with the documentation for the LoadFunc interface (see
> http://pig.apache.org/docs/r0.9.0/api/org/apache/pig/LoadFunc.html#setUDFContextSignature(java.lang.String)).
> (We've written UDFs that assume that setUDFContextSignature is called first.)
> I think you can fix this by adding
> loader.setUDFContextSignature(ld.getSignature());
> Before
> loader.setLocation(location, job);
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