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Date: Wed, 5 Jan 2011 11:52:48 -0500 (EST)
From: "Thejas M Nair (JIRA)" <jira@apache.org>
To: pig-dev@hadoop.apache.org
Subject: [jira] Resolved: (PIG-946) Combiner optimizer does not optimize
 when limit follow group, foreach
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     [ https://issues.apache.org/jira/browse/PIG-946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thejas M Nair resolved PIG-946.
-------------------------------

    Resolution: Fixed

Patch committed to trunk.


> Combiner optimizer does not optimize when limit follow group, foreach
> ---------------------------------------------------------------------
>
>                 Key: PIG-946
>                 URL: https://issues.apache.org/jira/browse/PIG-946
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.3.0
>            Reporter: Pradeep Kamath
>            Assignee: Thejas M Nair
>             Fix For: 0.9.0
>
>         Attachments: PIG-946-codechange-draft.patch, PIG-946.1.patch
>
>
> The following script is combinable but is not optimized:
> a = load '/user/pig/tests/data/singlefile/studenttab10k';
> b = group a by $1;
> c = foreach b generate group, AVG(a.$2);
> d = limit c 10;
> dump d;

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