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Notes on building software, learning things, and everything in between.
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Feb 1, 2026PostgreSQL
Postgres Indexes: Why Column Order Matters
The same columns can be fast or useless depending on order: B-tree column order in practice.
5 min readPostgreSQL
A Missing PostgreSQL Index
A missing index turned a pre-release test into a production fire, and the zero-downtime fix.
4 min readSecurity
AuthZ in production
RBAC vs ABAC, policy-as-code, and OPA: how authorization works in production systems.
6 min readPostgreSQL
Using PostgreSQL CTEs
A practical guide to writing readable, correct queries with PostgreSQL common table expressions.
7 min readMetaSAMPLE
Hello, Markdown
A style test covering every Markdown element this blog supports.
3 min read