Postgres at Scale: The 2026 Playbook

Postgres remains the most boring, most correct, most underestimated piece of infrastructure in modern web apps. Teams that 'outgrow' it almost always discover, in retrospect, that they outgrew their schema, their connection management, or their index strategy — not the database itself.

The 2026 playbook is well-rehearsed: PgBouncer in transaction mode early, replicas for read scaling, partition by tenant or by time before you have to, and treat schema migrations as a release-engineering discipline. Sharding is real but rare; most teams never need it, and most of the ones that do, need it later than they think.