Notes on running PostgreSQL in production, from the developer of HeapDeck.https://heapdeck.app/enhttps://heapdeck.app/blog/alter-table-lock-queue/https://heapdeck.app/blog/alter-table-lock-queue/A migration waiting for ACCESS EXCLUSIVE puts every later query on the table in line behind it. How the lock queue works, how to spot it, how to avoid it.Sat, 03 Oct 2026 00:00:00 GMThttps://heapdeck.app/blog/inactive-replication-slot-disk/https://heapdeck.app/blog/inactive-replication-slot-disk/A replication slot keeps WAL until its consumer confirms it. When the consumer is gone, pg_wal grows until the disk fills. How to find the slot and fix it.Sat, 03 Oct 2026 00:00:00 GMT