Replacing Your Message Queue with PostgreSQL

Deep dive into PostgreSQL-native patterns that replace Redis/RabbitMQ for startups under scale: FOR UPDATE SKIP LOCKED as a job queue, LISTEN/NOTIFY for real-time fan-out (including PgBouncer transaction-mode gotchas), and the transactional outbox pattern that guarantees exactly-once event publishing without distributed transactions — with benchmarks showing where PostgreSQL hits its ceiling and you actually need dedicated infrastructure