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Posted to issues@tajo.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/01/07 07:19:39 UTC

[jira] [Commented] (TAJO-1940) Implement HBaseTablespace::getTableVolume() method

    [ https://issues.apache.org/jira/browse/TAJO-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15086897#comment-15086897 ] 

ASF GitHub Bot commented on TAJO-1940:
--------------------------------------

Github user hyunsik commented on the pull request:

    https://github.com/apache/tajo/pull/910#issuecomment-169565627
  
    rebased.


> Implement HBaseTablespace::getTableVolume() method
> --------------------------------------------------
>
>                 Key: TAJO-1940
>                 URL: https://issues.apache.org/jira/browse/TAJO-1940
>             Project: Tajo
>          Issue Type: Task
>          Components: HBase Storage
>            Reporter: Jihoon Son
>            Assignee: Hyunsik Choi
>             Fix For: 0.12.0, 0.11.1
>
>
> 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, HBaseTablespace doesn't support getTableVolume() method, so our plan is not good when the query involves any HBase tables. 



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