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Posted to dev@pig.apache.org by "Jie Li (Commented) (JIRA)" <ji...@apache.org> on 2012/01/16 05:51:40 UTC
[jira] [Commented] (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:comment-tabpanel&focusedCommentId=13186688#comment-13186688 ]
Jie Li commented on PIG-2423:
-----------------------------
Sorry I finally find some time working on this. May I know how to edit the pig performance page?
> 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
> Fix For: 0.10
>
>
> 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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