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https://issues.apache.org/jira/browse/SPARK-47563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-47563.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 45721
[https://github.com/apache/spark/pull/45721]
> Map normalization upon creation
> -------------------------------
>
> Key: SPARK-47563
> URL: https://issues.apache.org/jira/browse/SPARK-47563
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Stevo Mitric
> Assignee: Stevo Mitric
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Add handling of map normalization upon creation in ArrayBasedMapBuilder.
> Currently a map with keys 0.0 and -0.0 will behave as if they are separate
> values. This will cause issues when doing GROUP BY on map types.
> Refer to this conversion
> [https://github.com/apache/spark/pull/45549#discussion_r1537803505]
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