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https://issues.apache.org/jira/browse/PIG-4736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15005168#comment-15005168
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Daniel Dai commented on PIG-4736:
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+1
> Removing empty keys in UDFContext broke one LoadFunc
> ----------------------------------------------------
>
> Key: PIG-4736
> URL: https://issues.apache.org/jira/browse/PIG-4736
> Project: Pig
> Issue Type: Bug
> Components: tez
> Reporter: Rohini Palaniswamy
> Assignee: Rohini Palaniswamy
> Fix For: 0.16.0
>
> Attachments: PIG-4736-1.patch
>
>
> PIG-4697 separated UDFContext specific to each vertex. But it also had an
> optimization to remove empty keys. That broke one user LoadFunc which was
> keeping the UDFContext Properties as a local variable and serializing in
> setLocation only if getSchema() was called. Even if UDFContext.isFrontend()
> logic was used it would have worked.
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