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From "Richard Ding (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1267) Problems with partition filter optimizer
Date Mon, 01 Mar 2010 23:44:06 GMT

     [ https://issues.apache.org/jira/browse/PIG-1267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Ding updated PIG-1267:
------------------------------

    Status: Patch Available  (was: Open)

> Problems with partition filter optimizer
> ----------------------------------------
>
>                 Key: PIG-1267
>                 URL: https://issues.apache.org/jira/browse/PIG-1267
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Richard Ding
>            Assignee: Richard Ding
>             Fix For: 0.7.0
>
>         Attachments: PIG-1267.patch
>
>
> There are a couple of problems with the current partition filter optimizer:
> 1. When a partition filter is removed from the logical plan, the input index of the following
join/cogroup operator may change, which in turn changes the ordering of the fields in the
schema and results in compile-time errors.
> 2. At most one partition filter can be removed per plan,  while multiple partition filters
can exist in the cases of joins. 

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