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https://issues.apache.org/jira/browse/PIG-979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12759848#action_12759848
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Jeff Hammerbacher commented on PIG-979:
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One could also cite the SOSP paper from MSR this year comparing the iterator to
the accumulator interface, though I have a hard time concisely stating their
conclusions: http://sigops.org/sosp/sosp09/papers/yu-sosp09.pdf.
> Acummulator Interface for UDFs
> ------------------------------
>
> Key: PIG-979
> URL: https://issues.apache.org/jira/browse/PIG-979
> Project: Pig
> Issue Type: New Feature
> Reporter: Alan Gates
> Assignee: Ying He
>
> Add an accumulator interface for UDFs that would allow them to take a set
> number of records at a time instead of the entire bag.
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