dtenedor commented on PR #57691:
URL: https://github.com/apache/spark/pull/57691#issuecomment-5296853021

   > I’m not sure I have enough context on the broader goal here, but could we 
reuse and extend the existing Connect PlanGenerationTestSuite → 
ProtoToParsedPlanTestSuite pipeline? It already covers DataFrame API → proto → 
analyzed Catalyst plan. Is there PySpark-specific coverage that requires a 
separate golden-test framework?
   
   Good question; the idea here is to execute the queries and check their 
results as well as the plans. We can make sure that changes to analysis are 
safe with respect to correctness in this way.


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