Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/19325#discussion_r140626051
--- Diff: python/pyspark/worker.py ---
@@ -80,14 +77,12 @@ def wrap_pandas_udf(f, return_type):
arrow_return_type = toArrowType(return_type)
def verify_result_length(*a):
- kwargs = a[-1]
- result = f(*a[:-1], **kwargs)
- if len(result) != kwargs["length"]:
+ result = f(*a)
+ if len(result) != len(a[0]):
--- End diff --
Should we verify the returned is a Pandas.Series?
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