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From "Jihoon Son (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TAJO-345) MergeScanner should support projectable storages
Date Sat, 30 Nov 2013 13:24:53 GMT

     [ https://issues.apache.org/jira/browse/TAJO-345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jihoon Son updated TAJO-345:
----------------------------

    Attachment: TAJO-345.patch

I attached a patch.

> MergeScanner should support projectable storages
> ------------------------------------------------
>
>                 Key: TAJO-345
>                 URL: https://issues.apache.org/jira/browse/TAJO-345
>             Project: Tajo
>          Issue Type: Bug
>          Components: storage
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-345.patch
>
>
> MergeScanner sequentially scans multiple fragments of the same table.
> If the table is stored as a columnar file such as RCFile, MergeScanner should read only
target columns.



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