[jira] [Created] (TAJO-1407) Minor performance improvement of MemSortExec

[Navis (JIRA)]

Navis created TAJO-1407:
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             Summary: Minor performance improvement of MemSortExec
                 Key: TAJO-1407
                 URL: https://issues.apache.org/jira/browse/TAJO-1407
             Project: Tajo
          Issue Type: Improvement
          Components: physical operator
            Reporter: Navis
            Assignee: Navis
            Priority: Minor


Currently, tajo uses Collections.sort() with TupleCompartor, which can incur 
some overheads on comparing. 



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