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https://issues.apache.org/jira/browse/SPARK-58420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uroš Bojanić resolved SPARK-58420.
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Fix Version/s: 4.4.0
Resolution: Fixed
Issue resolved by pull request 57629
[https://github.com/apache/spark/pull/57629]
> COUNT(DISTINCT ...) does not sort maps in the argument trees
> ------------------------------------------------------------
>
> Key: SPARK-58420
> URL: https://issues.apache.org/jira/browse/SPARK-58420
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 4.3.0
> Reporter: Vladimir Golubev
> Assignee: Vladimir Golubev
> Priority: Major
> Labels: correctness, pull-request-available
> Fix For: 4.4.0
>
>
> Injecting MapSort is necessary for maps to be grouped correctly. We currently
> do that for GROUP BY, but we missed that for the COUNT(DISTINCT ...)
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