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From "Gang Tim Liu (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-3642) Hive List Bucketing - optimize transform()
Date Thu, 29 Nov 2012 19:36:59 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gang Tim Liu reassigned HIVE-3642:
----------------------------------

    Assignee: Gang Tim Liu
    
> Hive List Bucketing - optimize transform()
> ------------------------------------------
>
>                 Key: HIVE-3642
>                 URL: https://issues.apache.org/jira/browse/HIVE-3642
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: Gang Tim Liu
>            Assignee: Gang Tim Liu
>            Priority: Minor
>
> In list bucketing transform(), we create pruning tree for each partition. 
> Although it is possible that different partitions have different skewed keys, chances
are that there will be a lot of overlap.
> It would be a good idea to optimize that case.

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