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From "Jason Altekruse (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-1737) Decimal type scale and precision are being flipped sometime during a cast
Date Mon, 17 Nov 2014 21:18:33 GMT
Jason Altekruse created DRILL-1737:
--------------------------------------

             Summary: Decimal type scale and precision are being flipped sometime during a
cast
                 Key: DRILL-1737
                 URL: https://issues.apache.org/jira/browse/DRILL-1737
             Project: Apache Drill
          Issue Type: Bug
            Reporter: Jason Altekruse


Running this query I was trying to test the behavior of the test framework to allow checking
a baseline file, without providing type information for each column in a csv. The idea is
that the types that come out of the test query can drive the interpretation of the baseline
where strict type checking isn't necessary. Unfortunately I ran into a bug when I was trying
to make sure decimal scale and precision could be retrieved from a result set with a decimal
column. It appears that the two values are being switched somewhere in the process of running
a cast. I plan on fixing this soon, but wanted to create a JIRA to track the issue so I can
post the patch for the test framework for review.

To replicate: 
select cast(dec_col as decimal(38,2)) dec_col from cp.`testframework/decimal_test.json`

The file need only contain a single decimal in a field called dec_col in the input file. I
used a value of "3.7"



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