Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/19929#discussion_r158595341 --- Diff: python/pyspark/sql/functions.py --- @@ -2075,9 +2075,10 @@ class PandasUDFType(object): def udf(f=None, returnType=StringType()): --- End diff -- I am saying this because I had few talks about this before and I am pretty sure we usually keep them as same whenever possible.
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