Query Optimization: Macro vs Micro Performance Analysis

In this podcast episode, the hosts discuss the distinction between macro and micro performance analysis in query optimization. They emphasize the importance of understanding the difference between analyzing the workload as a whole and focusing on single query optimization. They discuss the utilization of tools like explain and explain analyze, which provide insights into query plans and execution data. The hosts highlight the limitations of these tools, such as the lack of information about CPU utilization and physical disk IO. They also mention the importance of considering parameters and statistics that influence the planner's decisions in query optimization.