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Posted to issues@tajo.apache.org by "Keuntae Park (JIRA)" <ji...@apache.org> on 2015/04/03 08:20:52 UTC

[jira] [Created] (TAJO-1514) Distinguishing UNION and UNION ALL

Keuntae Park created TAJO-1514:
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             Summary: Distinguishing UNION and UNION ALL
                 Key: TAJO-1514
                 URL: https://issues.apache.org/jira/browse/TAJO-1514
             Project: Tajo
          Issue Type: Sub-task
            Reporter: Keuntae Park


Currently, Tajo handles both UNION and UNION ALL as UNION ALL.
For UNION, however, result should not have duplicated rows.
It needs to handle them differently.  



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