[jira] [Resolved] (SPARK-7702) Is it necessary to limit the precision of a Decimal type?

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-7702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-7702.
------------------------------
    Resolution: Invalid

I think you're right the first time that this is really a question to ask on user@ first. JIRAs are for fairly clear bug reports/fixes or well-defined improvements.

> Is it necessary to limit the precision of a Decimal type?
> ---------------------------------------------------------
>
>                 Key: SPARK-7702
>                 URL: https://issues.apache.org/jira/browse/SPARK-7702
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.3.1
>            Reporter: Zhongshuai Pei
>
> SQL
> {noformat}
> select cast(12.8 as decimal(40,20)) as tmp;
> {noformat}
> use spark-sql
> {noformat}
> tmp
> 12.8
> {noformat}
> use beeline
> {noformat}
> Error: java.lang.IllegalArgumentException: Decimal precision out of allowed range [1,38] (state=,code=0)
> {noformat}
> Because the precision of a Decimal type is limited to 38 digits in Hive, so is it necessary to limit the precision of a Decimal type for spark?



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