Improving the Spark SQL usability and computing efficiency is one of the missions for Linkedin’s Spark team. In this talk, we will present the Spark SQL ecosystem and roadmaps at Linkedin, and introduce the highlighted projects we are working on, such as: * Improving Dataset performance with automated column pruning * Bringing an efficient 2d join algorithm to Spark SQL * Fixing join skewness with adaptive execution * Enhancing the cost-optimizer with a history-based learning approach