Why AI Agents Make Me Reach for SQLite
Lately I keep reaching for SQLite where, before, I'd have reached for Postgres without thinking. It started with small services, then a bigger questio…
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Your circuit breaker stops at the service layer. Slow SQL needs one too.
Your circuit breaker stops at the service layer. Slow SQL needs one too. A single slow query can take down an entire service in seconds. This post sta…
SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective
SQLite WAL Debug, pgstream v1.1.0, & Postgres Scaling Retrospective Today's Highlights This week's database highlights include a deep dive into SQ…
Discovering PII Inside InterSystems IRIS
Data privacy regulations such as GDPR, LGPD, and HIPAA demand that organizations know exactly where Personally Identifiable Information (PII) lives in…
Room-Inspired Local Persistence in Swift: A Production GRDB Architecture
Introduction If you've built Android apps with Room, you already think in a layered persistence model: entities define your schema, DAOs handle querie…
The Silent Performance Killer in Rails: Understanding and Fixing N+1 Queries
If you've ever investigated a slow Rails endpoint, chances are you've encountered one of the most common performance problems in the Rails ecosystem: …
Why Audit Trails Matter in ClickHouse®: Building Accountability, Compliance, and Security
When teams evaluate database platforms, the conversation usually revolves around performance, scalability, query optimization, and storage efficiency.…
Building a Natural Language Query Interface for Your Database: A Developer's Blueprint
Every product team eventually hits the same wall. Marketing wants to know which signups came from last week's campaign. Support wants a list of custom…
SQLite Backup Strategy for Production SaaS: WAL, Litestream, Recovery Tests
Running SQLite in production for a multi-tenant SaaS means giving up the operational comfort of a managed database. No automatic backups, no point-in-…
CloudNativePG: Running PostgreSQL in Kubernetes Without the Pain
A CloudNativePG cluster that sits in Setting up primary forever, with zero error events on the Cluster resource and a perfectly healthy operator, is o…
PostgreSQL HA Risks, Replication Internals, & Rapid Branching
PostgreSQL HA Risks, Replication Internals, & Rapid Branching Today's Highlights Today's highlights include critical insights into Patroni's repli…
What Drags Down Throughput in GBase 8a Bulk Loading — and Where to Look First
When loading large volumes into a gbase database cluster, stability matters far more than a single peak throughput number. The same 500 GB data set ta…
How we cut our Dagster Cloud bill by 60% by collapsing our dbt assets
If your team is using Dagster Cloud's Solo or Starter tiers, the May 2026 pricing update probably gave you a bit of a shock . By removing the monthly …
Surviving the region you run in: failover on Aurora DSQL, and what the demo proves
The thesis Quorum is built on is uncomfortable and true: the tools a team uses to coordinate an incident often live in the same region as the thing th…
Optimistic concurrency is the whole design: event sourcing on Aurora DSQL
Quorum is an incident command plane built on Amazon Aurora DSQL. The failover story lives in another post. This one is about a narrower question that …
The Deep Mechanics of Online Bulk Deletion in PostgreSQL
MVCC, WAL, vacuum, and replication slots under sustained delete load - and how to delete billions of rows without your database noticing Most "how to …
UUID vs ULID vs NanoID: Which Identifier Should You Use in 2026?
A few years ago, choosing an ID format was easy. Most of us generated a UUID, stored it in the database, and moved on. Today things are different. Mod…
Day 17 of #100DaysOfClickHouse: Mastering Data Filtering for Faster ClickHouse Queries
When working with ClickHouse®, writing a query is usually straightforward. Writing an efficient query, however, requires understanding how ClickHouse …
Smart Query-Aware Cache Invalidation: Solving Mongoose Performance at Scale
The Mongoose Caching Problem (And How We Solved It) From 300 RPS to 700+ RPS: A 2.2x Performance Breakthrough When you're building a Node.js applicati…
What is the best real-time analytics database in 2026? An engineering buyer's guide
Traditional databases just can't keep up with high concurrency and low latency at the same time. The term "real-time" has become kind of meaningless. …
[System Design] H3 Geospatial Indexing: How Uber Finds Nearby Drivers with Hexagonal Spatial Index
The Problem: Finding a Needle in a Haystack Answer-first: Uber and Grab find the nearest available driver in under 100ms by dividing the Earth's surfa…
Vertica vs VoltDB (Volt Active Data): Key Differences, Use Cases & How to Choose in 2026
If you're building a modern data stack that requires either high-throughput transaction processing or large-scale analytical workloads, you've likely …
PostgreSQL 22P01 Error: Causes and Solutions Complete Guide
PostgreSQL Error 22P01: Floating Point Exception PostgreSQL error code 22P01 is raised when a floating-point operation produces an exceptional result …
What Phone Sanitization Revealed About Our Data
I Thought This Would Take a Day The task: normalize phone numbers across a sharded production system. Multiple country databases, years of inconsisten…
SELECT FINAL and OPTIMIZE FINAL Are Not the Same Thing
One thing that confused me when I first started learning ClickHouse was the word FINAL . Because eventually you'll come across both: SELECT * FROM eve…
Metadata Filtering Before Vector Search: The Recall Win Nobody Measures
Book: RAG Pocket Guide: Retrieval, Chunking, and Reranking Patterns for Production Also by me: Thinking in Go (2-book series) — Complete Guide to Go P…
10 API and Database Blunders Every Beginner Makes (and How to Fix Them Before Production Bites Back)
You wrote your first REST endpoint. You ran your first SELECT * . Things worked. Life was good. Then a colleague casually mentioned "idempotency key,"…
DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data
DuckDB Data Inlining, SQLite Fossildelta OOB, Postgres 19 Temporal Data Today's Highlights Today's highlights include DuckDB's innovative data inlinin…
GBase 8c Distributed Cluster Operations: Troubleshooting Common Failures with Hands‑On Fixes
Node crashes, connection storms, shard anomalies, and resource overloads are the most frequent disruptions in a gbase database cluster. This guide dis…
Day 14 of #100DaysOfClickHouse: Understanding Nodes, Shards, and Replicas
When people first start learning ClickHouse®, they usually focus on SQL queries, table engines, and performance optimization. But as data grows from m…