MTAR T3D Sessions | When Postgres Is Enough | Replacing Valkey with PostgreSQL (Part 2)

More than a refresh: Conversations with the most interesting people you've never met · Oct 15, 2026 · 19m

In Part 2 of "When Postgres Is Enough", Michael Cooper and JD examine what it took for AgLedger to trust PostgreSQL with work previously split between PostgreSQL and Valkey.

Supporting two databases meant maintaining separate schemas, backups, restores, and state that had to stay coordinated. PostgreSQL did not need to outperform Valkey at every task. It only needed to handle AgLedger’s workload well enough to make the second system unnecessary.

Michael explains how pg-boss allowed him to move queue and rate-limiting work into PostgreSQL, and why managing connections became a more important…