pacman82 commented on issue #5177:
URL: https://github.com/apache/arrow-rs/issues/5177#issuecomment-1889714381

   Hello together,
   
   maintainer of `odbc2parquet` here. While there are certainly good reasons 
for this request, I mourn the loss of the old API. It allowed me to directly 
fill the buffers which were already bound to an existing cursor via the ODBC 
C-API. I can not use a Vec since reallocating/resizing it would invalidate the 
pointers. As of now I see no other way to use the newest parquet version other 
than to introduce an extra allocation.
   
   Don't have any measurements around this, but hurts me a little.
   
   Just some feedback. Keep up the good work.


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