Kevin Soo Hoo created HIVE-5022:
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             Summary: Decimal Arithmetic generates NULL value
                 Key: HIVE-5022
                 URL: https://issues.apache.org/jira/browse/HIVE-5022
             Project: Hive
          Issue Type: Bug
          Components: Types
    Affects Versions: 0.11.0
         Environment: Hortonworks 1.3 running Hive 0.11.0.1.3.0.0-107
            Reporter: Kevin Soo Hoo


When a decimal division is the first operation, the quotient cannot be 
multiplied in a subsequent calculation. Instead, a NULL is returned. 

The following yield NULL results:
select (cast (4.53 as decimal) / cast(25.86 as decimal)) * cast(0.087 as 
decimal) from <tablename> limit 1;

select cast (4.53 as decimal) / cast(25.86 as decimal) * cast(0.087 as decimal) 
from <tablename> limit 1;


If we move the multiplication operation to be first, then it will successfully 
calculate the result.


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