Gengliang Wang created SPARK-22615:
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Summary: Handle more cases in PropagateEmptyRelation
Key: SPARK-22615
URL: https://issues.apache.org/jira/browse/SPARK-22615
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.0
Reporter: Gengliang Wang
Currently, in the optimize rule `PropagateEmptyRelation`, the following cases
is not handled:
1. right child is empty relation in left outer join
2. left child in right outer join
3. right child is empty relation in left semi join
4. right child is empty relation in left anti join
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