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https://issues.apache.org/jira/browse/PIG-4493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14394718#comment-14394718
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Daniel Dai commented on PIG-4493:
---------------------------------
+1
> Pig on Tez gives wrong results if Union is followed by Split
> ------------------------------------------------------------
>
> Key: PIG-4493
> URL: https://issues.apache.org/jira/browse/PIG-4493
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.14.0
> Reporter: Rohini Palaniswamy
> Assignee: Rohini Palaniswamy
> Fix For: 0.15.0
>
> Attachments: PIG-4493-1.patch, PIG-4493-2.patch
>
>
> POSplit subplans were not being cloned when the plans were cloned for pushing
> up in UnionOptimizer. This caused input plans being detached for one of them
> and they processed and produced 0 records.
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