masonh22 commented on PR #25710:
URL: https://github.com/apache/datafusion/pull/25710#issuecomment-6149871738

   @alamb it looks like CI failed in the hash collisions mode for the test I 
added because `HyperLogLog` doesn't do anything different when the hash 
collisions feature is enabled, but the groups accumulator for 
`approx_distinct()` does, so they end up generating different values.
   
   I went ahead and updated `HyperLogLog` so that it produces hash collisions 
when the feature is enabled.  The hash collision tests passed on my machine 
with this change.
   
   Alternatively, I could disable the test I added when the hash collision 
feature is enabled.  Let me know what you would prefer.


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