Leonard Xu created FLINK-14625:
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Summary: Eliminate cross join in multi join to reduce cost
Key: FLINK-14625
URL: https://issues.apache.org/jira/browse/FLINK-14625
Project: Flink
Issue Type: Improvement
Components: Table SQL / Planner
Affects Versions: 1.9.1
Reporter: Leonard Xu
cross join always has higher cost than other joins, if we can eliminate cross
join in multi join scene as much as possible，we can obtain better performance.
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