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From "Jihoon Son (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-345) MergeScanner should support projectable storages
Date Sat, 30 Nov 2013 11:17:35 GMT
Jihoon Son created TAJO-345:
-------------------------------

             Summary: 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


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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