andygrove commented on PR #3328:
URL: 
https://github.com/apache/datafusion-comet/pull/3328#issuecomment-3819197007

   > Are we able to use the standard .slt format or do we require additional 
features? There's an MIT-licensed parser from the Apache Calcite team here: 
https://github.com/hydromatic/sql-logic-test
   
   This is inspired by slt but there are some key differences.
   
   - We do not record expected results in the file. Instead, we compare to 
Spark (and we run for multiple Spark versions)
   - There are specific features to support minimum Spark version, and support 
settings Spark configs, including combinatorial matrices (so that we can 
migrate some existing tests to this approach)
   - It individual scala unit tests per file, fitting into the existing testing 
approach


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