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Posted to dev@tajo.apache.org by "Hyunsik Choi (JIRA)" <ji...@apache.org> on 2013/10/03 08:44:47 UTC

[jira] [Updated] (TAJO-199) All relations in catalog must have data volume size.

     [ https://issues.apache.org/jira/browse/TAJO-199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyunsik Choi updated TAJO-199:
------------------------------

    Attachment: TAJO-199.patch

I've submitted the first patch.

> All relations in catalog must have data volume size.
> ----------------------------------------------------
>
>                 Key: TAJO-199
>                 URL: https://issues.apache.org/jira/browse/TAJO-199
>             Project: Tajo
>          Issue Type: Improvement
>          Components: catalog, planner/optimizer, storage
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.2-incubating
>
>         Attachments: TAJO-199.patch
>
>
> Some relations generated in specific file format like RCFile and Trevni may have 0 bytes as a data volume. In order to use data volume as some factor in query optimization, we need to force all relations to have exact data volume.



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