[jira] [Commented] (TAJO-2005) Add TableStatUpdateRewriter

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-2005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15037336#comment-15037336 ] 

ASF GitHub Bot commented on TAJO-2005:
--------------------------------------

GitHub user hyunsik opened a pull request:

    https://github.com/apache/tajo/pull/899

    TAJO-2005: Add TableStatUpdateRewriter.

    

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

    $ git pull https://github.com/hyunsik/tajo TAJO-2005

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

    https://github.com/apache/tajo/pull/899.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 #899
    
----
commit d967eeb38039fce1f100adb361c58ef9dd7743da
Author: Hyunsik Choi <hy...@apache.org>
Date:   2015-12-03T06:15:44Z

    TAJO-2005: Add TableStatUpdateRewriter.

----


> Add TableStatUpdateRewriter
> ---------------------------
>
>                 Key: TAJO-2005
>                 URL: https://issues.apache.org/jira/browse/TAJO-2005
>             Project: Tajo
>          Issue Type: Improvement
>          Components: Planner/Optimizer
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>            Priority: Minor
>             Fix For: 0.12.0, 0.11.1
>
>
> Currently, we set table volumes into TableDesc in LogicalPlanner. In this case, we cannot employ the push-downed filters for getting table volumes. For it, we should postpone getting table volumes as late as possible before join ordering optimization.
> This patch move the table stat update code into the last rewrite rune in pre rewriters.



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