Optimizers of Meta Scale - Query Optimization Techniques for Large-Scale Data Processing

Learn about query optimization techniques implemented at Meta in this 15-minute technical talk from Meta's Feilong Liu. Explore various optimization rules developed to address sub-optimal query patterns found in Meta's workload. Discover how query rewrites are used to generate more efficient execution plans, including techniques for managing data skew, eliminating inefficient cross joins, and accelerating specific operations. Gain insights into real-world optimization strategies that enhance query performance at scale.