Xuanwo commented on PR #7613:
URL: https://github.com/apache/arrow-rs/pull/7613#issuecomment-2945001816

   > yes! same with `AsyncRead` and `AsyncSeek` in my previous comment
   
   The motivation behind this trait is to enable zero-copy data writing. Almost 
all Arrow users generate `Bytes`, and all storage implementations accept 
`Bytes` as input. By doing this, we can simply reuse the users' bytes without 
making an additional copy. This can make a significant difference when writing 
large files.


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