HyukjinKwon opened a new issue, #48450: URL: https://github.com/apache/arrow/issues/48450
### Describe the enhancement requested This is the ticket mentioned in https://github.com/apache/arrow/pull/7659 which implements unsigned dictionary indices in pandas conversion. The reason why it was not implement was: pandas Categorical uses -1 to represent null values, which cannot be properly represented in unsigned integer types. Simply adding the unsigned cases would have caused: - uint8: -1 wraps to 255 - uint16: -1 wraps to 65535 ### Component(s) Python -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
