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From "Corinne Chandel (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2221) Couldnt find documentation for ColumnMapKeyPrune optimization rule
Date Wed, 31 Aug 2011 00:37:10 GMT

     [ https://issues.apache.org/jira/browse/PIG-2221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Corinne Chandel updated PIG-2221:
---------------------------------

    Status: Patch Available  (was: Open)

Apply patch to Trunk and Branch-9. 

> Couldnt find documentation for ColumnMapKeyPrune optimization rule
> ------------------------------------------------------------------
>
>                 Key: PIG-2221
>                 URL: https://issues.apache.org/jira/browse/PIG-2221
>             Project: Pig
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 0.8.1
>            Reporter: Vivek Padmanabhan
>            Assignee: Corinne Chandel
>             Fix For: 0.9.1
>
>         Attachments: PIG-2221-help.patch, pig-2221.patch
>
>
> There are no documentations for some of the Optimization Rules, 
> For ex; ColumnMapKeyPrune
> in http://pig.apache.org/docs/r0.8.1/piglatin_ref1.html#Optimization+Rules
> And moreover I believe the documentaion should be saying how to disable these rules using
-t option. 
> It would be nice if the documentation could talk of some uses cases where it makes sense
to disable the optimization rule. 

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