pbmi opened a new issue, #14955: URL: https://github.com/apache/arrow/issues/14955
### Describe the bug, including details regarding any error messages, version, and platform. I received the above error when trying to run group_by() with a key column defined as dictionary<values=string, indices=int32, ordered=0> When I changed the key column to string(), group_by() ran successfully. I am therefore guessing that key columns of datatype dictionary are currently not supported by group_by(). Is gorup_by() support for dictionary key columns planned? Current setup is : Windows 11 Python 3.10 pyarrow 10.0.1 ### 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: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org