HyukjinKwon commented on a change in pull request #28052:
[SPARK-31287][PYTHON][SQL] Ignore type hints in groupby.(cogroup.)applyInPandas
and mapInPandas
URL: https://github.com/apache/spark/pull/28052#discussion_r399745568
##########
File path: python/pyspark/sql/pandas/functions.py
##########
@@ -384,6 +384,14 @@ def _create_pandas_udf(f, returnType, evalType):
"In Python 3.6+ and Spark 3.0+, it is preferred to specify
type hints for "
"pandas UDF instead of specifying pandas UDF type which will
be deprecated "
"in the future releases. See SPARK-28264 for more details.",
UserWarning)
+ elif evalType in [PythonEvalType.SQL_GROUPED_MAP_PANDAS_UDF,
+ PythonEvalType.SQL_MAP_PANDAS_ITER_UDF,
+ PythonEvalType.SQL_COGROUPED_MAP_PANDAS_UDF]:
+ # In case of 'SQL_GROUPED_MAP_PANDAS_UDF', deprecation warning is
being triggered
+ # at `apply` instead.
+ # In case of 'SQL_MAP_PANDAS_ITER_UDF' and
'SQL_COGROUPED_MAP_PANDAS_UDF', the
+ # evaluation type will always be set.
+ pass
elif len(argspec.annotations) > 0:
Review comment:
Let me don't add the warning for now .. I am not yet sure if we should add
the support of type hints in these pandas Function APIs .. Hopefully the
documentation in the site could clarify that type hints are only supported in
pandas UDFs.
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