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https://issues.apache.org/jira/browse/PIG-3768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13904267#comment-13904267
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Daniel Dai commented on PIG-3768:
---------------------------------
+1
> TezCompiler.visitUnion() doesn't add compiled TezOp to phyToTezOpMap
> ---------------------------------------------------------------------
>
> Key: PIG-3768
> URL: https://issues.apache.org/jira/browse/PIG-3768
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Affects Versions: tez-branch
> Reporter: Cheolsoo Park
> Assignee: Cheolsoo Park
> Fix For: tez-branch
>
> Attachments: PIG-3768-1.patch, PIG-3768-2.patch
>
>
> When a union alias is referred by another operator such as FRJoin, it causes
> NPE. Here is an example-
> {code}
> Caused by: java.lang.NullPointerException
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezCompiler.visitFRJoin(TezCompiler.java:651)
> ... 26 more
> {code}
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