The REPL: Issue 140 - April 2026

Keeping a Postgres queue healthy — PlanetScale Simeon Griggs explains the challenges and dynamics of queue workloads in Postgres. A job queue in Postgres is desirable because of transactionality, and because it spares you from maintaining a separate system. At a certain scale, though, it outpaces the database’s ability to clean up after itself. I haven’t evaluated PlanetScale’s solution to the…