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https://issues.apache.org/jira/browse/PIG-484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pradeep Kamath updated PIG-484:
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Attachment: PIG-484.patch
> PERFORMANCE: streaming data to aggregate functions
> --------------------------------------------------
>
> Key: PIG-484
> URL: https://issues.apache.org/jira/browse/PIG-484
> Project: Pig
> Issue Type: Improvement
> Affects Versions: types_branch
> Reporter: Olga Natkovich
> Assignee: Pradeep Kamath
> Fix For: types_branch
>
> Attachments: PIG-484.patch
>
>
> Currently, for queries like
> A = load 'data';
> B = group A by $0;
> C = foreach A generate group, MIN(A.$1), MAX (A.$1)
> The data will be put into the bag before being passed to aggregate functions.
> This is unnecessary and inefficient. In this case, data can be just streamed
> to the functions.
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