narukaze132 opened a new issue, #45192: URL: https://github.com/apache/arrow/issues/45192
### Describe the bug, including details regarding any error messages, version, and platform. As documented in pandas-dev/pandas#48883, if a DataFrame with an empty categorical column is saved into a Parquet and subsequently loaded using `pyarrow`, the column's dtype reverts to `object`. This issue occurs regardless of what engine was used to save the Parquet, and does not occur when using `fastparquet` to load the file instead. ### Component(s) Parquet, 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
