January 08
PostgreSQL query plans go wrong for one main reason: bad statistics. The planner doesn’t understand your data — it guesses, using histograms and most common values. When those guesses are off, even the “cheapest” plan can be disastrously slow. Let's explore where row estimates come from — and why they so often miss the mark.
January 06
Query performance doesn’t usually fail all at once — it drifts. PostgreSQL chooses plans based on estimates, not guarantees, and those estimates change as your data changes. Here’s how the planner really works, why it sometimes gets it wrong, and how to stop being surprised by bad plans.
December 29
Views aren’t the problem. Your design is. Learn how to build fast, scalable PostgreSQL views that actually perform!
December 28
Master PostgreSQL views and materialized views with practical Pagila examples and learn the power move most developers skip!
December 27
Most developers think they understand database constraints — until PostgreSQL politely corrects them. Constraints aren’t just rules. They’re guarantees. They tell PostgreSQL what must be true at all times. And when constraints are designed well, your data stays clean and your application becomes dramatically safer!
December 23
PostgreSQL indexes are like closets. You start with them neat and organized… and then six months later you’re wondering why the door won’t close and why everything takes longer to find. That digital mess is called index bloat, and managing it is one of the most underrated responsibilities of a PostgreSQL DBA.
I’ve spent over 20 years optimizing databases and designing rock-solid data systems. Now I’m sharing what I’ve learned to help others build faster, smarter, and more reliable platforms.