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https://issues.apache.org/jira/browse/PIG-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15967121#comment-15967121
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Daniel Dai commented on PIG-5211:
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I must make a mistake when rebasing the patch. Sure, go ahead, thanks Koji!
> Optimize Nested Limited Sort
> ----------------------------
>
> Key: PIG-5211
> URL: https://issues.apache.org/jira/browse/PIG-5211
> Project: Pig
> Issue Type: Improvement
> Reporter: Jin Sun
> Assignee: Jin Sun
> Fix For: 0.17.0
>
> Attachments: PIG-5211-1.patch, PIG-5211-2.patch, PIG-5211-3.patch,
> PIG-5211-4.patch, PIG-5211-5.patch, pig-5211-testfix-postcommit.patch
>
>
> Currently in FOREACH clause, if both LIMIT and ORDER BY are present, pig
> stores all elements and sort them. It should use a priority queue to be more
> efficient in space.
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