mbrobbel commented on issue #7063: URL: https://github.com/apache/arrow-rs/issues/7063#issuecomment-2788713660
> > The spec defines extension types as metadata on Fields > > I believe the language in the spec is limited to exchange via FFI and serialization via IPC (e.g., Java, Go, and Arrow C++ include extension types as objects with native fields and only serialize when specifically requested). I don't believe it has caused confusing situations in other languages but it could be worth asking others! I will give it a try anyway and see what kind of implementation effort/downstream impacts it may have. The `DataType` approach requires all matches on instances of `DataType` to consider the extension type variant inner datatype, which has major downstream impact. It means that consumers that don't care about extension types now need to deal with them. The spec states that implementations are not required to support canonical extension types. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
