[
https://issues.apache.org/jira/browse/SPARK-8010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14567105#comment-14567105
]
Apache Spark commented on SPARK-8010:
-------------------------------------
User 'OopsOutOfMemory' has created a pull request for this issue:
https://github.com/apache/spark/pull/6551
> Implict promote Numeric type to String type in HiveTypeCoercion
> ---------------------------------------------------------------
>
> Key: SPARK-8010
> URL: https://issues.apache.org/jira/browse/SPARK-8010
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.3.1
> Reporter: Li Sheng
> Fix For: 1.3.1
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> 1. Given a query
> `select coalesce(null, 1, '1') from dual` will cause exception:
>
> java.lang.RuntimeException: Could not determine return type of Coalesce for
> IntegerType,StringType
> 2. Given a query:
> `select case when true then 1 else '1' end from dual` will cause exception:
> java.lang.RuntimeException: Types in CASE WHEN must be the same or
> coercible to a common type: StringType != IntegerType
> I checked the code, the main cause is the HiveTypeCoercion doesn't do
> implicit convert when there is a IntegerType and StringType.
> Numeric types can be promoted to string type in case throw exceptions.
> Since Hive will always do this. It need to be fixed.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
