Re: [I] [C++][Dataset] Parquet schema lost on dataset write [arrow]

["beryan (via GitHub)" <gi...@apache.org>]

beryan commented on issue #45969:
URL: https://github.com/apache/arrow/issues/45969#issuecomment-2770121134

   I appreciate the discussion and consideration!
   
   I'll add that I wasn't able to find a suitable workaround before realizing an enhancement would be ideal.
   - I tried writing with the uuid extension type. Since that didn't work I assumed extension types wouldn't work in general. I didn't realize there were extra steps to cover the to/from Parquet process. Thanks for linking that PR.
   - I tried writing custom key value metadata, but that also didn't work. I noticed there are some issues (e.g. #33335) for metadata loss so that seems currently expected.


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