PostgreSQL's MultiXact ID space wraps like transaction IDs, and this parameter forces anti-wraparound vacuums before it does.

Aurora PostgreSQL separates compute from a distributed storage layer that's radically unlike stock PostgreSQL.

Raising autovacuum_max_workers above 3 won't speed up vacuum unless you also increase autovacuum_vacuum_cost_limit—the I/O budget is divided among workers, not…

Unauthenticated attackers can execute arbitrary SQL against pgBouncer 1.25.0 and earlier in specific configurations.

PostgreSQL 19 finally makes logical replication and physical standbys work together safely.

PgQue's zero-mutation queue algorithm eliminates the "queue death spiral" by replacing UPDATE-and-DELETE with snapshot diffing.

Autovacuum_freeze_max_age prevents PostgreSQL's xid wraparound catastrophe.

Autovacuum's ANALYZE threshold formula combines a fixed floor and a percentage of table size.

If you have ever run pg_ctl stop -m fast on a primary and watched it hang well past wal_sender_shutdown_timeout, you have met a bug that has been sitting in wal

Disable autovacuum and PostgreSQL will cheerfully show you every failure mode in its playbook, from table bloat to transaction ID wraparound.