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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-146) Complex expressions in group-by clause should be supported
Date Mon, 02 Sep 2013 01:16:51 GMT
Hyunsik Choi created TAJO-146:
---------------------------------

             Summary: Complex expressions in group-by clause should be supported
                 Key: TAJO-146
                 URL: https://issues.apache.org/jira/browse/TAJO-146
             Project: Tajo
          Issue Type: Improvement
          Components: physical operator, planner/optimizer
            Reporter: Hyunsik Choi
             Fix For: 0.2-incubating


Complex expressions in group-by clause should be supported.
{code}
FROM
   table1
GROUP BY 
  col1,
  CASE upper(col2) 
      WHEN 'ABC' THEN 
          col2 
      ELSE 'XXX') 
  END,  
  col3, 
  trim(appindex), ...
{code}

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