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Posted to dev@hive.apache.org by "Gang Tim Liu (JIRA)" <ji...@apache.org> on 2013/03/12 21:33:13 UTC

[jira] [Assigned] (HIVE-4150) optimize queries like 'select count(1) from T where '

     [ https://issues.apache.org/jira/browse/HIVE-4150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gang Tim Liu reassigned HIVE-4150:
----------------------------------

    Assignee: Gang Tim Liu
    
> optimize queries like 'select count(1) from T where <conditions on partition columns>'
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-4150
>                 URL: https://issues.apache.org/jira/browse/HIVE-4150
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Gang Tim Liu
>
> If accurate stats are available in the metastore, they should be used to
> optimize the above query.

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