[jira] [Created] (TAJO-656) Should print zero for count() when no row matches the given condition

["Keuntae Park (JIRA)" <ji...@apache.org>]

Keuntae Park created TAJO-656:
---------------------------------

             Summary: Should print zero for count() when no row matches the given condition
                 Key: TAJO-656
                 URL: https://issues.apache.org/jira/browse/TAJO-656
             Project: Tajo
          Issue Type: Improvement
            Reporter: Keuntae Park
            Priority: Trivial


{noformat}
select count(*) from A where A.a = 'a';
{noformat}
When a table has no row that matches the given condition, it returns
{noformat}
?count
-------------------------------
{noformat}

I think return should be 
{noformat}
?count
-------------------------------
0
{noformat}




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