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