Why we stopped using UUIDs as primary keys
August 28, 2026 4 min read Ali Ajgor
A 40% index size increase and a write pattern that fought InnoDB — what we measured, and what we do instead.
The short version
This is demo content. Replace it from Admin → Blog.
What we changed
Every post on this blog exists because somebody asked the question twice. Writing the answer down once is cheaper than answering it a third time, and it happens to be the only marketing that still works on developers.
