xinrong-meng commented on code in PR #38015: URL: https://github.com/apache/spark/pull/38015#discussion_r981758988
########## python/pyspark/pandas/indexes/base.py: ########## @@ -1907,6 +1908,9 @@ def append(self, other: "Index") -> "Index": ) index_fields = self._index_fields_for_union_like(other, func_name="append") + # Since pandas 1.5.0, the order of category matters. + if isinstance(other, CategoricalIndex): + other = other.reorder_categories(self.categories.to_list()) Review Comment: Considering the code change is minimum, feel free to keep the current implementation if you prefer :) -- 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: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org