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https://issues.apache.org/jira/browse/SPARK-35791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17364603#comment-17364603
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Apache Spark commented on SPARK-35791:
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User 'c21' has created a pull request for this issue:
https://github.com/apache/spark/pull/32939
> Release on-going map properly for NULL-aware ANTI join
> ------------------------------------------------------
>
> Key: SPARK-35791
> URL: https://issues.apache.org/jira/browse/SPARK-35791
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Cheng Su
> Priority: Minor
>
> NULL-aware ANTI join (https://issues.apache.org/jira/browse/SPARK-32290)
> detects NULL join keys during building the map for `HashedRelation`, and will
> immediately return `HashedRelationWithAllNullKeys` without taking care of the
> map built already. Before returning `HashedRelationWithAllNullKeys`, the map
> needs to be freed properly to save memory and keep memory accounting
> correctly.
>
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