pyspark.sql.UDFRegistration¶

class pyspark.sql.UDFRegistration(sparkSession: SparkSession)[source]¶

Wrapper for user-defined function registration. This instance can be accessed by spark.udf or sqlContext.udf.

New in version 1.3.1.

Methods

`register`(name, f[, returnType])	Register a Python function (including lambda function) or a user-defined function as a SQL function.
`registerJavaFunction`(name, javaClassName[, …])	Register a Java user-defined function as a SQL function.
`registerJavaUDAF`(name, javaClassName)	Register a Java user-defined aggregate function as a SQL function.