ueshin commented on a change in pull request #35191:
URL: https://github.com/apache/spark/pull/35191#discussion_r821071781
##########
File path: python/pyspark/pandas/series.py
##########
@@ -5228,9 +5229,20 @@ def asof(self, where: Union[Any, List]) -> Union[Scalar,
"Series"]:
where = [where]
index_scol = self._internal.index_spark_columns[0]
index_type = self._internal.spark_type_for(index_scol)
+
+ if np.nan in where:
+ # When `where` is np.nan, pandas returns the last index value.
+ last_index =
self._internal.spark_frame.select(F.last(index_scol)).take(1)[0][0]
Review comment:
I guess we can handle `np.nan` in `where` when creating the `cond` below?
We can pass the original col instead of `F.when( ... )` if it's `np.nan`?
--
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]
