cloud-fan commented on code in PR #41316:
URL: https://github.com/apache/spark/pull/41316#discussion_r1234000476
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python/pyspark/sql/functions.py:
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@@ -11157,6 +11159,100 @@ def udf(
return _create_py_udf(f=f, returnType=returnType, useArrow=useArrow)
+def udtf(
+ cls: Optional[Type] = None,
+ *,
+ returnType: Union[StructType, str],
+) -> Union[UserDefinedTableFunction, functools.partial]:
+ """Creates a user defined table function (UDTF).
+
+ .. versionadded:: 3.5.0
+
+ Parameters
+ ----------
+ cls : class
+ the Python user-defined table function handler class.
Review Comment:
do we have a doc to introduce the UDTF interface? i.e. which methods to
implement and what they should return.
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