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From "Anitha Raju (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PIG-2406) Improve double precision
Date Wed, 07 Dec 2011 17:34:39 GMT
Improve double precision 
-------------------------

                 Key: PIG-2406
                 URL: https://issues.apache.org/jira/browse/PIG-2406
             Project: Pig
          Issue Type: New Feature
            Reporter: Anitha Raju


Hi,

When 2.51 (type: double) is added 24 times using SUM, it gives you result of 60.23999999999997.

If a user wants to control the precision, that is, in the result he requires 60.24, it wouldnt
be possible unless he implements a custom UDF.

So if we can have a way to improve double precision, 
for eg: http://docs.oracle.com/javase/1.5.0/docs/api/java/math/BigDecimal.html
Here with BigDecimal, one can improve the double precision and with MathContext, the user
has control to set the precision.

Can we have a new UDF which can do the same?

Regards,
Anitha

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