In Scala If more than 22 fields in case class then How Spark process the data?

Question

What is Class Linearization in Scala? What is the use of Class Linearization in Scala? How do we solve Traits ambiguity using Class Linearization in Scala?

Answer 1

If Case class doesn’t work properly, data loaded as an RDD or the row objects. Schema created separately using StructType (table) and StructFiled (field) objects. Schema is applied to the row RDD to create a DataFrame.