alamb commented on issue #7799:
URL: https://github.com/apache/arrow-rs/issues/7799#issuecomment-3083596378

   In terms of implementation, I recommend we follow a similar approach to the 
variant implementation, specifically:
   1. The use of geometry types should be optional (not required when using 
parquet-rs)
   2. The code should live in a crate similar to `parquet-geometry` or 
`parquet-geo`
   3. The arrow implementation should use the arrow extension type mechanism 
(not add a type to DataType, for example)
   
   
   One specific approach might be to follow @PinkCrow007 's example in the 
following PR -- that is to sketch out what this support might look like in a PR 
which we then break up into smaller parts to keep it going. 
   - https://github.com/apache/arrow-rs/pull/7404


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