felipecrv commented on PR #7137:
URL: https://github.com/apache/arrow-rs/pull/7137#issuecomment-2661058317

   > I personally think the former is better as it drives the ecosystem 
forwards, but appreciate some people are more in the camp of "I just want it to 
work".
   
   Note that `arrow-rs` is effectively asking other Arrow implementations to 
provide 16-byte aligned buffers for some types [1][2]. That's a tough call -- 
`malloc` gives 8 by default (64 bits). Possible but hard in C, almost 
impossible on language runtimes that give less memory allocation controls.
   
   [1] https://github.com/apache/arrow-rs/blob/main/arrow-data/src/data.rs#L1591
   [2] https://github.com/apache/arrow-adbc/issues/2526#issuecomment-2661051639


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