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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2019/12/02 02:51:00 UTC
[jira] [Resolved] (SPARK-29955) Can't cast String MapType to
MapType
[ https://issues.apache.org/jira/browse/SPARK-29955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon resolved SPARK-29955.
----------------------------------
Resolution: Incomplete
Please show the full reproducer. It's most likely intentionally disallowed per ANSI or for another good reason in type coercion.
> Can't cast String MapType to MapType
> ------------------------------------
>
> Key: SPARK-29955
> URL: https://issues.apache.org/jira/browse/SPARK-29955
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.4
> Reporter: Ramanand Jaiswal
> Priority: Major
>
> I'm not able to cast the String Map type to MapType.
> {code:java}
> dataset.withColumn("test", dataset.col("test").cast(DataTypes.createMapType(StringType, StringType)));
> {code}
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