Xianyin Xin created SPARK-27714:
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Summary: Support Join Reorder based on Genetic algorithm when the
# of joined tables > 12
Key: SPARK-27714
URL: https://issues.apache.org/jira/browse/SPARK-27714
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.4.3
Reporter: Xianyin Xin
Now the join reorder logic is based on dynamic planning which can find the most
optimized plan theoretically, but the searching cost grows rapidly with the #
of joined tables grows. It would be better in introduce Genetic algorithm (GA)
to overcome this problem.
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