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https://issues.apache.org/jira/browse/SPARK-26244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-26244:
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Description:
It's a bad idea to use case class as public API, as it has a very wide surface.
For example, the copy method, its fields, the companion object, etc.
I don't think we expect to expose so many stuff to end users, and usually we
only want to expose a few methods.
> Do not use case class as public API
> -----------------------------------
>
> Key: SPARK-26244
> URL: https://issues.apache.org/jira/browse/SPARK-26244
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
> Affects Versions: 3.0.0
> Reporter: Wenchen Fan
> Priority: Major
>
> It's a bad idea to use case class as public API, as it has a very wide
> surface. For example, the copy method, its fields, the companion object, etc.
> I don't think we expect to expose so many stuff to end users, and usually we
> only want to expose a few methods.
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