SQL Query Optimizer Overview Rewrite SQL queries for maximum performance by eliminating anti-patterns, restructuring JOINs, leveraging window functions, and applying database-specific optimizations for PostgreSQL and MySQL. This skill takes a slow query and its execution plan as input and produces an optimized version with measurable improvement, along with any supporting index changes needed. Prerequisites - The slow SQL query text and its current execution time - output (PostgreSQL) or output (MySQL) for the query - Table row counts and approximate data distribution for involved tables - or…