markap14 commented on PR #11039:
URL: https://github.com/apache/nifi/pull/11039#issuecomment-4121752781

   <img width="757" height="212" alt="image" 
src="https://github.com/user-attachments/assets/2d3198aa-c557-4d54-a9af-641696316dc8";
 />
   I generated some data that was intentionally abusive to the pattern, having 
many fields that are nullable across 1,000 records. It took about 105 seconds 
to infer the schema on just those 1,000 records. After these changes, times 
were around 50 ms.


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