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Posted to dev@pig.apache.org by "Julien Le Dem (JIRA)" <ji...@apache.org> on 2012/11/19 20:39:58 UTC

[jira] [Updated] (PIG-2423) document use case where co-group is better choice than join

     [ https://issues.apache.org/jira/browse/PIG-2423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julien Le Dem updated PIG-2423:
-------------------------------

    Fix Version/s:     (was: 0.11)

This will go in a future release
                
> document use case where co-group is better choice than join 
> ------------------------------------------------------------
>
>                 Key: PIG-2423
>                 URL: https://issues.apache.org/jira/browse/PIG-2423
>             Project: Pig
>          Issue Type: Improvement
>          Components: documentation
>            Reporter: Thejas M Nair
>
> Optimization rules 2 and 3 suggested in https://issues.apache.org/jira/secure/attachment/12506841/pig_tpch.ppt (PIG-2397) recommend the use of co-group instead of  join in certain cases. These should be documented in pig performance page.

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