zhuqi-lucas commented on PR #16196:
URL: https://github.com/apache/datafusion/pull/16196#issuecomment-2926803211

   > Isn't that somewhat unavoidable when you're dealing with a cooperative 
scheduler? There's no way for tokio to preempt.
   
   I agree, so i added the most urgent and possible cases aggregate exec and 
sort exec now. The datasource support for cancellation is an option for us to 
discuss, i still don't add it.
   


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