Spark UDFs (User Defined Functions) are not the best thing a developer will use, they look so cool especially the syntax to write them is really cool, looks attractive and make the code cleaner but the problem with UDFs are related to performance especially a big impact if you are using Python because it is non JVM language. It isrecommended to avoid using the UDFs and try to use the built-in function.
Spark UDFs Are Cruel!
Spark UDFs Are Cruel!
Spark UDFs Are Cruel!
Spark UDFs (User Defined Functions) are not the best thing a developer will use, they look so cool especially the syntax to write them is really cool, looks attractive and make the code cleaner but the problem with UDFs are related to performance especially a big impact if you are using Python because it is non JVM language. It isrecommended to avoid using the UDFs and try to use the built-in function.