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https://issues.apache.org/jira/browse/SPARK-22615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-22615.
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Resolution: Fixed
Assignee: Gengliang Wang
Fix Version/s: 2.3.0
> 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
> Assignee: Gengliang Wang
> Fix For: 2.3.0
>
>
> Currently, in the optimize rule `PropagateEmptyRelation`, the following cases
> is not handled:
> 1. empty relation as right child in left outer join
> 2. empty relation as left child in right outer join
> 3. empty relation as right child in left semi join
> 4. empty relation as right child in left anti join
> case #1 and #2 can be treated as Cartesian product and cause exception.
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