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https://issues.apache.org/jira/browse/PIG-3279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663239#comment-13663239
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Daniel Dai commented on PIG-3279:
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Hi, Johnny,
You will also need to change LogToPhyTranslationVisitor. Changing parser alone
will not make it work. Currently in LogToPhyTranslationVisitor, LORank is
translated into a full mapreduce job, which include
POLocalRearrange->POPackage->POSort->POCounter->PORank, which is not the case
in nested rank, at least no POLocalRearrange->POPackage. You can refer to
PIG-1916 to see how to handle LogToPhyTranslationVisitor for nested operator.
> Support nested RANK
> -------------------
>
> Key: PIG-3279
> URL: https://issues.apache.org/jira/browse/PIG-3279
> Project: Pig
> Issue Type: Improvement
> Reporter: Gianmarco De Francisci Morales
> Assignee: Johnny Zhang
> Attachments: PIG-3279-1.patch.txt, PIG-3279-2.patch.txt
>
>
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