alamb commented on PR #11750:
URL: https://github.com/apache/datafusion/pull/11750#issuecomment-2260908276

   > Interesting, it seems the common point with 
https://github.com/apache/datafusion/pull/11718 is that we should consider the 
increasing collision when the hash table is filling up.
   
   In theory I think this is the kind of optimization that we are relying on 
`hashbrown` to do for us. Maybe there are some tuning knobs we could set but 
maybe we should just leave the defaults -- it seems to work reasonably well


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