ianmcook opened a new issue, #43809: URL: https://github.com/apache/arrow/issues/43809
### Describe the bug, including details regarding any error messages, version, and platform. In the Format docs and Python docs, there are several examples of user-defined extension types and sample code showing how to implement them (by subclassing). These all use a UUID extension type as the example: - https://arrow.apache.org/docs/python/generated/pyarrow.ExtensionType.html - https://arrow.apache.org/docs/python/extending_types.html#defining-extension-types-user-defined-types - https://arrow.apache.org/docs/python/generated/pyarrow.register_extension_type.html - https://arrow.apache.org/docs/python/generated/pyarrow.unregister_extension_type.html - https://arrow.apache.org/docs/format/Integration.html#json-test-data-format (under "For example, assuming a “uuid” extension type...") Now that UUID is a _canonical_ extension type (#41299) and will have native support in C++ and Python (#37298), we should replace these with examples based on some other user-defined extension type—ideally one that is not likely to become a canonical extension type anytime soon. Maybe an XML or YAML extension type (with UTF8 storage type)? ### Component(s) Documentation -- 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: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
