Why Random UUIDs are Killing Your Database Performance

Every developer starts with a UUID. It’s the industry standard for a reason: zero coordination, zero DB checks, and zero single point of failure. Any machine can generate one and be 100% sure it’s unique. But as your system scales, that "standard" choice starts to hurt. The Problem: UUIDs vs. Databases If you're using UUID v4 (completely random), you're essentially handing your database a grenade. Because the IDs are random, every new insert lands in a random spot in your B-Tree index. This caus