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https://issues.apache.org/jira/browse/SPARK-31292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17135374#comment-17135374
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Apache Spark commented on SPARK-31292:
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User 'maropu' has created a pull request for this issue:
https://github.com/apache/spark/pull/28830
> Replace toSet.toSeq with distinct for readability
> -------------------------------------------------
>
> Key: SPARK-31292
> URL: https://issues.apache.org/jira/browse/SPARK-31292
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
> Affects Versions: 3.0.0
> Reporter: Kengo Seki
> Assignee: Kengo Seki
> Priority: Trivial
> Fix For: 3.0.0
>
>
> Some classes use {{toSet.toSeq}} to make the elements of a sequence unique,
> but it's a bit verbose. Using {{distinct}} instead is easier to understand.
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