alamb commented on PR #14028:
URL: https://github.com/apache/datafusion/pull/14028#issuecomment-2580367825

   > Would a test case like this one be useful? 
[influxdata@b9e4d8b](https://github.com/influxdata/arrow-datafusion/commit/b9e4d8b4c64c228dc611981fda98cc7d1b33031d)
   > 
   > It does capture the difference with, versus without, this change.
   
   Thank you @wiedld  -- I think this type of test is basically testing the 
implementation (eg. testing that yielding is happening). However the behavior 
we care about here is that the stream stops processing when dropped (aka 
canceled)
   
   Thus I agree with @ozankabak  that we should get some sort of higher level 
reproducer to be sure we have fixed the root cause (rather than just treating 
the symptom)


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