LiaCastaneda commented on PR #22593:
URL: https://github.com/apache/datafusion/pull/22593#issuecomment-4566480724

   > yep makes sense, I think we can drop the API note here (it was carry over 
from claude) .
   
   About this,  I see all the UDF traits follow this struct + inner trait 
pattern, including the most recent async UDF -- but I think the pattern exists 
in the first place for backwards compatibility. See #8578 and #8713 (rewrites 
`ScalarUDF` to wrap `Arc<dyn ScalarUDFImpl>`). The wrapper was kept all along 
to avoid breaking users of the older API, not because the shape was preferred. 
I think it's still worth keeping for consistency here, but flagging in case 
simplifying this across UDFs is something we want to do in the future.


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