udf (SparkSession)

Returns a UDFRegistration for UDF registration.

Syntax

udf

Returns

UDFRegistration

Examples

# 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|
# +------------+