snowflake.snowpark.udf.UserDefinedFunction¶

class snowflake.snowpark.udf.UserDefinedFunction(func: Callable | Tuple[str, str], return_type: DataType, input_types: List[DataType], name: str, is_return_nullable: bool = False)[source]¶

Bases: object

Encapsulates a user defined lambda or function that is returned by udf(), UDFRegistration.register() or UDFRegistration.register_from_file(). The constructor of this class is not supposed to be called directly.

Call an instance of UserDefinedFunction to generate Column expressions. The input type can be a column name as a str, or a Column object.

See also

• UDFRegistration

• udf()

Attributes

func	The Python function or a tuple containing the Python file path and the function name.
name	The UDF name.