XiangpengHao commented on issue #5351:
URL: https://github.com/apache/arrow-rs/issues/5351#issuecomment-2583756841

   > what doesn't work practically?
   
   My use case is that when trying to load hits.parquet (15GB) into 
browser-based parquet-viewer, it will fail to read the correct file range, 
because the file size is larger than what usize on wasm32 (essentially u32) can 
represent. To allow larger than 4GB ranges, we need to use u64 instead of usize 
to represent ranges.
   
   > tests / build for object_store on wasm32 just fine
   
   I think this is because we don't have test cases for large ranges.


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