[jira] [Created] (TAJO-1372) Improve the performance of distinct queries

[Jihoon Son (JIRA)]

Jihoon Son created TAJO-1372:
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             Summary: Improve the performance of distinct queries
                 Key: TAJO-1372
                 URL: https://issues.apache.org/jira/browse/TAJO-1372
             Project: Tajo
          Issue Type: Improvement
            Reporter: Jihoon Son


See the title.
This problem is discussed at 
http://mail-archives.apache.org/mod_mbox/tajo-dev/201503.mbox/%3CCALr1C9p4PhO4PpZ0qGo%2BC6VA63YbYWabfxfAM2OQ3bD%3Dzh6MLw%40mail.gmail.com%3E.



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