If you’re a true professional, your mastery should be reflected in your toolkit. First, it directly affects your efficiency, which in turn impacts the quality of your work. Second, it’s basic comfort—an ease that indirectly influences your entire life. Of course, you can’t help but admire the rock-star engineer who’s written code in Vim their whole life, controls their Tesla from it, and does countless other things that, judging by endless forum debates about tool convenience, “IDE lovers couldn’t even dream of.➤ Read more...

When working with PostgreSQL, query optimization is a crucial skill for maintaining performance in high-load systems. In this post, I’ll show how I optimized a slow query by 50% using a composite index—leveraging PostgreSQL’s EXPLAIN and EXPLAIN ANALYZE commands to diagnose performance bottlenecks and improve efficiency. Why EXPLAIN Matters PostgreSQL provides the EXPLAIN command to analyze query execution plans before execution. It helps developers understand: ✅ How PostgreSQL plans to execute the query➤ Read more...