xinrong-meng commented on code in PR #38015:
URL: https://github.com/apache/spark/pull/38015#discussion_r981758420
##########
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:
We may also have a separate `append` for CategoricalIndex to maintain
clearer abstraction since we only make `MultiIndex` an exception (allow
different behaviors for MultiIndex) in this file.
--
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]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
