HyukjinKwon commented on code in PR #41316:
URL: https://github.com/apache/spark/pull/41316#discussion_r1220854589
##########
python/pyspark/sql/functions.py:
##########
@@ -10403,6 +10405,84 @@ 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.
+ returnType : :class:`pyspark.sql.types.StructType` or str
+ the return type of the user-defined table function. The value can be
either a
+ :class:`pyspark.sql.types.StructType` object or a DDL-formatted struct
type string.
+
+ Examples
+ --------
+ Implement the UDTF class.
+ >>> class TestUDTF:
+ ... def eval(self, *args: Any):
+ ... yield "hello", "world"
+
+ Create the UDTF
Review Comment:
```suggestion
Create the UDTF
```
and dittos for the ones below.
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