comphead commented on issue #13904:
URL: https://github.com/apache/datafusion/issues/13904#issuecomment-2564417913

   @TheBuilderJR thanks for opening the issue and please let us know if 
anything still needed. as @ozankabak correctly mentioned the if there is no top 
level ordering the engine cannot guarantee the final order. 
   
   The LIMIT clause gets evaluated after the ORDER clause, so if you rewrite 
your query 
   
   ```
   SELECT * FROM (
   SELECT
     session.access_token,
     COUNT(1) as c
   FROM quizchat_chats
   GROUP BY session.access_token
   ) AS query ORDER BY c LIMIT 10000
   ``` it should work


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