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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8559) DECIMAL field can not store 0 if precision = scale
Date Wed, 22 Oct 2014 16:24:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14180129#comment-14180129
] 

Xuefu Zhang commented on HIVE-8559:
-----------------------------------

Can you also try MySQL? decimal(6,6) can store a data range of 0.000000 to 0.999999 (-/+).
0 has a precision/scale (1,0). Looks like 0 is a special case, and maybe 0 should be cast
to .000000.

> DECIMAL field can not store 0 if precision = scale
> --------------------------------------------------
>
>                 Key: HIVE-8559
>                 URL: https://issues.apache.org/jira/browse/HIVE-8559
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.13.1
>            Reporter: Alexander Pivovarov
>
> For example the following query returns NULL instead of 0 in hive (trunk )
> select cast(0 as decimal(6,6));
> OK
> NULL
> I tried DECIMAL(6,6) in oracle.  It can store 0.



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