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 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.
December 19
A quick, beginner-friendly guide to generating sample data in PostgreSQL. Learn how to create thousands of rows using generate_series, random(), arrays, and timestamps — no CSVs required.
December 14
PostgreSQL’s JSONB data type gives you the flexibility of a document store while keeping all the relational superpowers you already know. But the truth is simple: most developers struggle with JSONB purely because they forget the syntax. This guide is the refresher I wish someone handed me years ago!
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.
