🔧 Part 1: MySQL 8.0 Optimizer Enhancements - SQL Query Optimization Deep Dive

Introduction


As the current mainstream version, MySQL 8.0 has made numerous improvements in performance optimization. According to official release records, from version 8.0.0 to the latest 8.0.41, 20 out of 42 releases have included optimizer enhancements. Over multiple installments, I will list optimizer-related content from MySQL 8.0 Release...