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From "Viraj Bhat (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-613) Casting elements inside a tuple does not take effect
Date Fri, 09 Jan 2009 00:16:59 GMT
Casting elements inside a tuple does not take effect
----------------------------------------------------

                 Key: PIG-613
                 URL: https://issues.apache.org/jira/browse/PIG-613
             Project: Pig
          Issue Type: Bug
          Components: impl
    Affects Versions: types_branch
            Reporter: Viraj Bhat
             Fix For: types_branch
         Attachments: myfloatdata.txt

Consider the following Pig script which casts return values of the SQUARE UDF which are  tuples
of doubles to long. The describe output of B shows it is long, however the result is still
double.
{code}
register statistics.jar;
A = load 'myfloatdata.txt' using PigStorage() as (doublecol:double);
B = foreach A generate (tuple(long))statistics.SQUARE(doublecol) as squares:(loadtimesq);
describe B;
explain B;
dump B;
{code}
===========================================
Describe output of B:
B: {squares: (loadtimesq: long)}
===========================================================
Sample output of B:
((7885.44))
((792098.2200010001))
((1497360.9268889998))
((50023.7956))
((0.972196))
((0.30980356))
((9.9760144E-7))
===========================================================
Cause: The cast for Tuples has not been implemented in POCast.java



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