Fokko commented on PR #2653:
URL: https://github.com/apache/iceberg-python/pull/2653#issuecomment-3504566914

   > I guess, to me, the main benefit would be the ability to do file-level 
pruning before opening any files.
   
   This is correct, and it would give some optimization. However, bloom filters 
need to be tuned based on the cardinallity of the column. The price to pay is 
that we encode more information in the manifest files.
   
   > As a result, this would also come with some secondary benefits like being 
able to do row group-level pruning within a Parquet file after opening it.
   
   I would expect Pyarrow to do this automatically 🤔 


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