Maryann Xue created SPARK-28739:
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Summary: Add a simple cost check for Adaptive Query Execution
Key: SPARK-28739
URL: https://issues.apache.org/jira/browse/SPARK-28739
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.0
Reporter: Maryann Xue
Add a mechanism to compare the costs of the before and after plans of
re-optimization in Adaptive Query Execution.
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