def udf(self):
"""Returns a :class:`UDFRegistration` for UDF registration.
:return: :class:`UDFRegistration`
"""
from pyspark.sql.udf import UDFRegistration
return UDFRegistration(self)
def udf(self) -> "UDFRegistration":
"""Returns a :class:`UDFRegistration` for UDF registration.
.. versionadded:: 2.0.0
Returns
-------
:class:`UDFRegistration`
Examples
--------
>>> spark.udf
<pyspark.sql.udf.UDFRegistration object ...>
Register a Python UDF, and use it in SQL.
>>> strlen = spark.udf.register("strlen", lambda x: len(x))
>>> spark.sql("SELECT strlen('test')").show()
+------------+
|strlen(test)|
+------------+
| 4|
+------------+
"""
from pyspark.sql.udf import UDFRegistration
return UDFRegistration(self)
def udf(self) -> "UDFRegistration":
"""Returns a :class:`UDFRegistration` for UDF registration.
.. versionadded:: 2.0.0
Returns
-------
:class:`UDFRegistration`
"""
from pyspark.sql.udf import UDFRegistration
return UDFRegistration(self)