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Stripe Webhook Idempotency in FastAPI: Handling Duplicate Events Without Double-Charging SaaS Customers I learned this lesson the hard way. Three mont…
You cannot run analytical queries on the same Postgres primary that serves your application without paying for it in CPU and connections. A read repli…
In SQL databases, NULL represents an unknown value — not the absence of a value. When a value is simply non-applicable for a given entity, the correct…
Choosing an open source PostgreSQL operator for Kubernetes used to be a question about features and community size. In 2026, it has become a question …
Most developers I talk to connect Cursor or Claude directly to their databases using a full admin connection string. Wether it's a local Docker databa…
TL;DR Built a PostgreSQL extension that creates UUIDs looking like random v4 but containing hidden timestamps. Result: 50% smaller indexes with perfec…
A slow query lands in your lap. You run EXPLAIN ANALYZE and get back a wall of indented text that looks like someone fed a query plan through a blende…
1 Minute PostgreSQL Tip: Indexing JSONB for Faster Lookups 🚀 Ever struggled with slow queries on your JSONB columns? You're not alone. Many developers…
"Who owns conflict resolution when two agents write to shared memory in the same turn?" — Kyle Carriedo, in the comments on a recent post Best comment…
The Problem with Auto-Incrementing IDs When building a B2B SaaS platform at Smart Tech Devs, using standard auto-incrementing integers (1, 2, 3) for y…
PostgreSQL WAL Bloat: Why Automatic Management Is Often Insufficient? While managing a production ERP system, I encountered an unexpected situation wh…
If you're building a multi-tenant SaaS, this is the first real architecture decision that will haunt you if you get it wrong. I've implemented both ap…
Author's Note: This article documents a production incident investigation and the technical findings that emerged from returning to foundational docum…
SQL stands for Structured Query Language. It is the language we use to talk to relational databases like MySQL, PostgreSQL, and SQLite. What is a Serv…
PostgreSQL 17 in Production: What Actually Matters PostgreSQL 17 shipped with a mix of incremental improvements and a few genuine breakthroughs. After…
Testing FastAPI + SQLAlchemy with Real PostgreSQL Fixtures: No More Mocking Misery I spent three months debugging why a query worked in tests but fail…
A small question can become a big database scan when an AI agent writes the query. “Show me customers at risk” sounds harmless. But depending on schem…
The fastest way to leak sensitive data through an AI database agent is to expose columns the model never needed. Table access is too broad. A customer…
I Released AI DB Investigator - A Skill for Structured Database Analysis AI is very good at generating answers. But when it comes to database problems…
Big improvements incoming 👋 Finding the right balance for a feed algorithm is historically really hard. If you optimize purely for clicks and comments…
Most operational infrastructure starts this way: a requirement appears before the architecture does. One day the team needed a database audit solution…
A lot of systems begin with a single database. Usually PostgreSQL. And honestly, in the beginning, that works perfectly fine. The application stores: …
An AI answer without provenance is just a confident paragraph. That may be fine for brainstorming. It is not enough for database answers that drive pr…
Introduction The first thing anyone that has worked with real world data will tell you is that rarely does data come in the clean, uniform format you …
Heads up before anything else: this is built with Claude Code. I don't have time to write a Postgres admin tool from scratch, and the existing ones ju…
Introduction Apache Iceberg is the table format that turns a pile of Parquet files in object storage into something that behaves like a warehouse tabl…
I had a screen open with NYC's HPD pipeline dataset on the left and San Francisco's MOHCD dataset on the right, and I was trying to answer what should…
TL;DR I built a small Solana program activity indexer in Rust to pressure-test the patterns I rely on every day in Python — cursor-based syncs, idempo…
Architecting a Two-Stage Semantic Search Pipeline with HNSW, LATERAL JOIN, and Cubic Scoring Siyu Siyu Siyu Follow May 11 Architecting a Two-Stage Sem…
The Premature Optimization Trap When building a B2B SaaS platform at Smart Tech Devs, a fast and intelligent search bar is a core requirement. A user …