2010YOUY01 commented on PR #26846:
URL: https://github.com/apache/datafusion/pull/26846#issuecomment-6468905326

   Some refactoring is needed to make individual test cases reproducible from a 
seed.
   
   For example, if a test case fails:
   ```python
   # Random seed determined at runtime
   run_case(357)
   ```
   
   The error message should print the failing seed, so we can add it to the 
regression tests:
   
   ```python
   def run_regression():
       # All previously failing seeds
       run_case(43)
       run_case(357)
   ```
   
   I think this is probably an acceptable maintenance overhead.


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