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https://issues.apache.org/jira/browse/PIG-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15966279#comment-15966279
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Jin Sun commented on PIG-5211:
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Thanks!!!!!
> 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
>
>
> 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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