This is an example module from "Apache Spark™ Tuning and Best Practices," one of Databricks Academy’s 3-day Instructor-Led Training courses. See all the Instructor-Led courses Databricks Academy offers here: https://databricks.com/training/instructor-led-training
In this video, Databricks Instructor Jacob Parr presents the Apache Spark Cost-Based Optimizer. He’ll first explain various optimizers and how they are used within Apache Spark, and then go into detail on the Cost-Based Optimizer, providing examples on actual data with code samples.
