udf (SparkSession)

Devolve a UDFRegistration para registo na UDF.

Sintaxe

udf

Devoluções

UDFRegistration

Exemplos

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