andishgar opened a new issue, #46244: URL: https://github.com/apache/arrow/issues/46244
### Describe the usage question you have. Please include as many useful details as possible. According to the [Apache Arrow specification](https://arrow.apache.org/docs/format/Columnar.html#dense-union), the `dense union's offset type `is `int32`. However, as [noted](https://github.com/apache/arrow/pull/4781#discussion_r300780404), this limits arrays to 2 billion elements. Why not use int64, or is it possible to adopt a dual int32/int64 approach like dictionaries? ### 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
