Format: howto 3 View all How to optimise loading partitioned JSON data in Spark ? How to add row numbers to a Spark DataFrame? Spark DataFrame - two ways to count the number of rows per partition Tech: spark 3 View all How to optimise loading partitioned JSON data in Spark ? How to add row numbers to a Spark DataFrame? Spark DataFrame - two ways to count the number of rows per partition Topic: optimisation 1 View all How to optimise loading partitioned JSON data in Spark ?