Sort Merge Join

Apache Spark’s Join Algorithms

August 31, 2020August 31, 2020Apache Spark, Studio-Scala, Tech BlogsApache Spark, Broadcast Join, Join opertaions, Join optimization, Joins in Spark, Shuffled Hash Join, Sort Merge Join

Reading Time: 4 minutes Joins in Apache Spark are fundamental transformations, but if you are not familiar with their internal algorithm, they can become too expensive.