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https://issues.apache.org/jira/browse/SPARK-23862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-23862:
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Assignee: Apache Spark
> Spark ExpressionEncoder should support java enum type in scala
> --------------------------------------------------------------
>
> Key: SPARK-23862
> URL: https://issues.apache.org/jira/browse/SPARK-23862
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Fangshi Li
> Assignee: Apache Spark
> Priority: Major
>
> In SPARK-21255, spark upstream adds support for creating encoders for java
> enum types, but the support is only added to Java API(for enum working within
> Java Beans). Since the java enum can come from third-party java library, we
> have use case that requires
> 1. using java enum types as field of scala case class
> 2. using java enum as the type T in Dataset[T]
> Spark ExpressionEncoder already supports ser/de many java types in
> ScalaReflection, so we propose to add support for java enum as well, as a
> follow up of SPARK-21255.
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