XiDuo You created SPARK-41511:
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Summary: LongToUnsafeRowMap support ignoresDuplicatedKey
Key: SPARK-41511
URL: https://issues.apache.org/jira/browse/SPARK-41511
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.4.0
Reporter: XiDuo You
For left semi and left anti hash join, the duplicated keys of build side have
no meaning.
Previous, we supported ingore duplicated keys for UnsafeHashedRelation. We can
also optimize LongHashedRelation.
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