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Posted to issues@tajo.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/08/05 12:46:04 UTC

[jira] [Commented] (TAJO-1743) Improve calculation of intermediate table statistics

    [ https://issues.apache.org/jira/browse/TAJO-1743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14655168#comment-14655168 ] 

ASF GitHub Bot commented on TAJO-1743:
--------------------------------------

GitHub user jinossy opened a pull request:

    https://github.com/apache/tajo/pull/678

    TAJO-1743: Improve calculation of intermediate table statistics

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jinossy/tajo TAJO-1743

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/tajo/pull/678.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #678
    
----
commit 0d1a62cb7800a82b8bfc72d72b6a9954e371acfa
Author: Jinho Kim <jh...@apache.org>
Date:   2015-08-05T10:44:13Z

    TAJO-1743: Improve calculation of intermediate table statistics

----


> Improve calculation of intermediate table statistics
> ----------------------------------------------------
>
>                 Key: TAJO-1743
>                 URL: https://issues.apache.org/jira/browse/TAJO-1743
>             Project: Tajo
>          Issue Type: Improvement
>          Components: Data Shuffle, Physical Operator, Storage
>    Affects Versions: 0.8.0, 0.9.0, 0.10.0, 0.10.1
>            Reporter: Jinho Kim
>            Assignee: Jinho Kim
>             Fix For: 0.11.0
>
>
> Internal storage calculates the statistic(min, max) for intermediate data shuffling. but the statistics requires only to the range shuffle in the current implementation. We should remove unnecessary computing



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