Yannis Sismanis created SPARK-44219:
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Summary: Add extra per-rule validation for optimization rewrites.
Key: SPARK-44219
URL: https://issues.apache.org/jira/browse/SPARK-44219
Project: Spark
Issue Type: Improvement
Components: Optimizer
Affects Versions: 3.4.1, 3.4.0
Reporter: Yannis Sismanis
Adds per-rule validation checks for the following:
1. aggregate expressions in Aggregate plans are valid.
2. Grouping key types in Aggregate plans cannot by of type Map.
3. No dangling references have been generated.
This is validation is by default enabled for all tests or selectively using the
spark.sql.planChangeValidation=true flag.
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