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Posted to issues@drill.apache.org by "Jason Altekruse (JIRA)" <ji...@apache.org> on 2015/04/21 01:32:59 UTC

[jira] [Updated] (DRILL-1737) Decimal type scale and precision are being flipped sometime during a cast

     [ https://issues.apache.org/jira/browse/DRILL-1737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Altekruse updated DRILL-1737:
-----------------------------------
    Component/s: Execution - Data Types

> 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
>          Components: Execution - Data Types
>            Reporter: Jason Altekruse
>            Assignee: Jason Altekruse
>             Fix For: 0.7.0
>
>
> 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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