mbutrovich commented on issue #21080:
URL: https://github.com/apache/datafusion/issues/21080#issuecomment-4633642413

   Comet is seeing performance regressions for TPC-H and TPC-DS SF1000.
   
   > Benchmarked SF1000 TPC-H and TPC-DS:
   > 
   > <img alt="Image" width="1000" height="600" 
src="https://private-user-images.githubusercontent.com/6855576/603578892-915ba18c-4085-4df6-ac9b-a8614775795e.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.U8jykOU1_qtWTI0pLfp9Pm5ytqmE0i-PlsGBQ7c99YQ";>
 <img alt="Image" width="2000" height="343" 
src="https://private-user-images.githubusercontent.com/6855576/603578894-5aa48
 
a23-62fd-4126-8432-75ed580a8ced.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3ODA2NzgzNDksIm5iZiI6MTc4MDY3ODA0OSwicGF0aCI6Ii82ODU1NTc2LzYwMzU3ODg5NC01YWE0OGEyMy02MmZkLTQxMjYtODQzMi03NWVkNTgwYThjZWQucG5nP1gtQW16LUFsZ29yaXRobT1BV1M0LUhNQUMtU0hBMjU2JlgtQW16LUNyZWRlbnRpYWw9QUtJQVZDT0RZTFNBNTNQUUs0WkElMkYyMDI2MDYwNSUyRnVzLWVhc3QtMSUyRnMzJTJGYXdzNF9yZXF1ZXN0JlgtQW16LURhdGU9MjAyNjA2MDVUMTY0NzI5WiZYLUFtei1FeHBpcmVzPTMwMCZYLUFtei1TaWduYXR1cmU9NzVlY2Q0ZDY3ZGU0NGZmNGVjNGFkNzIwNmFlYzJiMmI4YmQ4ZjJmZTAxMGE4ZmUyOTlkMGY1YjE4ZjEzZjBiNiZYLUFtei1TaWduZWRIZWFkZXJzPWhvc3QmcmVzcG9uc2UtY29udGVudC10eXBlPWltYWdlJTJGcG5nIn0.NqW7ezoHIxP8rlpj17wBgSJ2_iaZ9IJ3WSkdLTdplQI">
 <img alt="Image" width="1000" height="600" 
src="https://private-user-images.githubusercontent.com/6855576/603578895-5bb017fa-f7af-4613-87ec-8ecb91887b19.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1
 
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.J1hlGUlGRYnrY3_rXe15BDF3eY-Ag8hoPY_Cxa8UmO4">
 <img alt="Image" width="1500" height="600" 
src="https://private-user-images.githubusercontent.com/6855576/603578893-1535d932-88ff-45c3-a8d8-ef6a10e85665.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3ODA2NzgzNDksIm5iZiI6MTc4MDY3ODA0OSwicGF0aCI6Ii82ODU1NTc2LzYwMzU3ODg5My0xN
 
TM1ZDkzMi04OGZmLTQ1YzMtYThkOC1lZjZhMTBlODU2NjUucG5nP1gtQW16LUFsZ29yaXRobT1BV1M0LUhNQUMtU0hBMjU2JlgtQW16LUNyZWRlbnRpYWw9QUtJQVZDT0RZTFNBNTNQUUs0WkElMkYyMDI2MDYwNSUyRnVzLWVhc3QtMSUyRnMzJTJGYXdzNF9yZXF1ZXN0JlgtQW16LURhdGU9MjAyNjA2MDVUMTY0NzI5WiZYLUFtei1FeHBpcmVzPTMwMCZYLUFtei1TaWduYXR1cmU9ZWZkZDAyN2YzYzEwNDNmZGQ4OTk0MDg1YjBhMzM3ZjFkMzk4MTMxMzY0MGU2MzliODVlMDY1MmI1NDlhZTViNyZYLUFtei1TaWduZWRIZWFkZXJzPWhvc3QmcmVzcG9uc2UtY29udGVudC10eXBlPWltYWdlJTJGcG5nIn0.i-59et6KQoTEmSMLU9WkIdl_-HTjU5ogdOIEFVgD6kM">
   > I'm digging into the regressions, but the hash joins jump out at me 
immediately as slower.
   > 
   > main:
   > 
   > <img alt="Image" width="1787" height="306" 
src="https://private-user-images.githubusercontent.com/6855576/603579086-3ab00a03-bd63-428e-bf44-965fbebb1404.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.C_QP0Xgn3UzbrsGPTn0751wxw5kNwqqhCGdJ6kCRZuc";>
   > DF54:
   > 
   > <img alt="Image" width="1826" height="330" 
src="https://private-user-images.githubusercontent.com/6855576/603579237-af219f6e-79a0-41fa-841b-f95bf7cb528e.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.eT6Dtor1lp2JoC9Lyke96CXm0iyfQTlB6WpIjbBiorY";>
   
   I will try to reproduce in DataFusion.


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