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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2020/12/22 17:57:00 UTC
[jira] [Assigned] (SPARK-23862) Spark ExpressionEncoder should
support java enum type in scala
[ https://issues.apache.org/jira/browse/SPARK-23862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun reassigned SPARK-23862:
-------------------------------------
Assignee: Erik Krogen
> 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: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Fangshi Li
> Assignee: Erik Krogen
> 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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