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 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!
December 12
PostgreSQL’s JSONB type is incredibly powerful. It’s flexible, fast, and lets developers store semi-structured data without spinning up a separate document store. But here’s the truth: most JSONB performance problems come from developers treating JSONB like a magic box instead of a real data type with real indexing rules.
December 10
PostgreSQL locking feels scary — mostly because the documentation lists 15 different lock modes, half of which sound like they were named during a caffeine-fueled meeting. But here’s the truth: you only need to understand a few key concepts to debug almost every lock issue you’ll ever encounter.
December 08
PostgreSQL gives you a huge toolbox of data types, which is great — until you accidentally pick the wrong one and end up fighting performance issues, storage problems, or subtle bugs that show up months later. In this article, we’ll go over the four data type pairs developers misuse the most, and I’ll show you the simple rules that will keep your schemas clean and your data correct.
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.
