Vineet Garg created HIVE-21395:
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Summary: Refactor HiveSemiJoinRule
Key: HIVE-21395
URL: https://issues.apache.org/jira/browse/HIVE-21395
Project: Hive
Issue Type: Improvement
Components: Query Planning
Affects Versions: 4.0.0
Reporter: Vineet Garg
Assignee: Vineet Garg
Following refactoring needs to be done:
* Update the rule matching pattern to avoid using HepVertex
* HIVE-21338 adds logic to determine if rel plan will produce at most one row.
Use this in HiveSemiJoinRule
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