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From "Cheolsoo Park (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-3123) Simplify Logical Plans By Removing Unneccessary Identity Projections
Date Mon, 29 Jul 2013 16:37:52 GMT

    [ https://issues.apache.org/jira/browse/PIG-3123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13722606#comment-13722606
] 

Cheolsoo Park commented on PIG-3123:
------------------------------------

+1. I am going to commit this today.
                
> Simplify Logical Plans By Removing Unneccessary Identity Projections
> --------------------------------------------------------------------
>
>                 Key: PIG-3123
>                 URL: https://issues.apache.org/jira/browse/PIG-3123
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>    Affects Versions: 0.10.0
>            Reporter: Nick White
>            Assignee: Nick White
>             Fix For: 0.12
>
>         Attachments: PIG-3123.0.patch, PIG-3123.1.patch, PIG-3123.2.patch
>
>
> The TypeCastInserter inserts a LOForeach into a logical plan even if it doesn't need
to make any casts. The attached patch adds a special case to the TypeCastInserter to skip
this behaviour if possible. The patch also refactors some of the if-instanceof-x-else-if-instanceof-y
behaviour into subclasses.

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