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Posted to dev@pig.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2009/11/12 02:48:40 UTC
[jira] Assigned: (PIG-802) PERFORMANCE: not creating bags for ORDER
BY
[ https://issues.apache.org/jira/browse/PIG-802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Gates reassigned PIG-802:
------------------------------
Assignee: Rakesh Setty
> PERFORMANCE: not creating bags for ORDER BY
> -------------------------------------------
>
> Key: PIG-802
> URL: https://issues.apache.org/jira/browse/PIG-802
> Project: Pig
> Issue Type: Improvement
> Affects Versions: 0.2.0
> Reporter: Olga Natkovich
> Assignee: Rakesh Setty
> Fix For: 0.4.0
>
> Attachments: OrderByOptimization.patch
>
>
> Order by should be changed to not use POPackage to put all of the tuples in a bag on the reduce side, as the bag is just immediately flattened. It can instead work like join does for the last input in the join.
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