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https://issues.apache.org/jira/browse/SPARK-32871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17195110#comment-17195110
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Apache Spark commented on SPARK-32871:
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User 'sarutak' has created a pull request for this issue:
https://github.com/apache/spark/pull/29742
> Append toMap to Map#filterKeys if the result of filter is concatenated with
> another Map
> ---------------------------------------------------------------------------------------
>
> Key: SPARK-32871
> URL: https://issues.apache.org/jira/browse/SPARK-32871
> Project: Spark
> Issue Type: Sub-task
> Components: Build
> Affects Versions: 3.1.0
> Reporter: Kousuke Saruta
> Assignee: Kousuke Saruta
> Priority: Minor
>
> As of Scala 2.13, Map#filterKeys return a MapView, not the original Map type.
> This can cause compile error.
> {code:java}
> /sql/DataFrameReader.scala:279: type mismatch;
> [error] found : Iterable[(String, String)]
> [error] required: java.util.Map[String,String]
> [error] Error occurred in an application involving default arguments.
> [error] val dsOptions = new
> CaseInsensitiveStringMap(finalOptions.asJava) {code}
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