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https://issues.apache.org/jira/browse/TAJO-1939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15143940#comment-15143940
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ASF GitHub Bot commented on TAJO-1939:
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GitHub user jihoonson opened a pull request:
https://github.com/apache/tajo/pull/960
TAJO-1939: Implement PgSQLTablespace::getTableVolume() method
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jihoonson/tajo-2 TAJO-1939
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/tajo/pull/960.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 #960
----
commit a6a6ee37c19e232ccae34821a600fd2c77aee95e
Author: Jihoon Son <[email protected]>
Date: 2016-02-12T03:01:43Z
Implement getTableVolumn() method
----
> Implement PgSQLTablespace::getTableVolume() method
> --------------------------------------------------
>
> Key: TAJO-1939
> URL: https://issues.apache.org/jira/browse/TAJO-1939
> Project: Tajo
> Issue Type: Task
> Components: JDBC Storage
> Reporter: Jihoon Son
> Assignee: Jihoon Son
> Fix For: 0.12.0
>
>
> Table volume has an important role in query planning. Tajo's query optimizer
> makes many decisions based on table volume, because it is currently the only
> available statistics.
> However, PgSQLTablespace doesn't support getTableVolume() method, so our plan
> is not good when the query involves any pgsql tables.
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