Cheng Su created SPARK-35791:
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Summary: 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
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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