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Posted to dev@phoenix.apache.org by "Kevin Liew (JIRA)" <ji...@apache.org> on 2015/12/18 00:06:46 UTC

[jira] [Created] (PHOENIX-2536) Return of SUM function does not have the correct data type

Kevin Liew created PHOENIX-2536:
-----------------------------------

             Summary: Return of SUM function does not have the correct data type
                 Key: PHOENIX-2536
                 URL: https://issues.apache.org/jira/browse/PHOENIX-2536
             Project: Phoenix
          Issue Type: Bug
    Affects Versions: 4.6.0
            Reporter: Kevin Liew


ANSI SQL specifies that 
{quote}If SUM is specified and DT is exact numeric with scale
              S, then the data type of the result is exact numeric with
              implementation-defined precision and scale S.
...
If DT is approximate numeric, then the data type of the
              result is approximate numeric with implementation-defined
              precision not less than the precision of DT.{quote}

However, when summing integer types (first operand) with float or double (second operand), Phoenix returns the value with the same data type as the first operand. 



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