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https://issues.apache.org/jira/browse/SPARK-37104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17470157#comment-17470157
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Dongjoon Hyun commented on SPARK-37104:
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I removed `3.1.0` and `3.2.0` from the `Affects Versions` because new feature
cannot affect the released old versions.
> RDD and DStream should be covariant
> -----------------------------------
>
> Key: SPARK-37104
> URL: https://issues.apache.org/jira/browse/SPARK-37104
> Project: Spark
> Issue Type: Improvement
> Components: PySpark
> Affects Versions: 3.3.0
> Reporter: Maciej Szymkiewicz
> Assignee: Maciej Szymkiewicz
> Priority: Major
> Fix For: 3.3.0
>
>
> At the moment {{RDD}} and {{DStream}} are defined as invariant.
>
> However, there are immutable and could be marked as covariant.
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