paleolimbot commented on PR #1299:
URL:
https://github.com/apache/datafusion-python/pull/1299#issuecomment-3482496877
> What do you think?
Definitely! Passing the argument fields/return fields should do it. Using
`__arrow_c_schema__` might be more flexible than `isinstance(x, pa.Field)`
(arro3, nanoarrow, and polars types would work too).
We have a slightly different signature model in SedonaDB ("type matchers")
because the existing signature matching doesn't consider metadata, but at the
Arrow/FFI level we're doing approximately the same thing:
https://github.com/apache/sedona-db/pull/228 . We do use the concept of
`SedonaType` for arguments and return type (but these are serializable
to/deserializable from fields).
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