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From "Thejas M Nair (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1642) Order by doesn't use estimation to determine the parallelism
Date Fri, 24 Sep 2010 23:20:33 GMT

    [ https://issues.apache.org/jira/browse/PIG-1642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12914704#action_12914704
] 

Thejas M Nair commented on PIG-1642:
------------------------------------

Looks good. +1 


> Order by doesn't use estimation to determine the parallelism
> ------------------------------------------------------------
>
>                 Key: PIG-1642
>                 URL: https://issues.apache.org/jira/browse/PIG-1642
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: 0.8.0
>            Reporter: Richard Ding
>            Assignee: Richard Ding
>             Fix For: 0.8.0
>
>         Attachments: PIG-1642.patch, PIG-1642_1.patch, PIG-1642_1.patch
>
>
> With PIG-1249, a simple heuristic is used to determine the number of reducers if it isn't
specified (via PARALLEL or default_parallel). For order by statement, however, it still defaults
to 1.

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