PostgreSQL's simple one-process-per-connection model is expensive.

A vector index build in pgvector 0.8.6 and earlier trusted a vector's header over the column's dimension count, allowing out-of-bounds writes.

When one long transaction holds row locks on thousands of parents, multixact cache misses can tank insert throughput.

`min_wal_size` sets a floor under WAL recycling, not a retention policy—confusing many operators who lose standbys when the floor causes segments to be…

Parallel scans need a minimum table or index size to be considered—but that minimum also sets the bottom rung of the ladder the planner climbs to decide how…

PgBouncer 1.26.0 patches three CVEs, two triggerable without authentication.

Siemens shut down OpenRadioss and deleted its repository; the Rocky Enterprise Software Foundation forked it as OpenCourant the same day.

PostgreSQL 18 added md5_password_warnings to suppress deprecation notices about MD5 passwords—but it only warns when setting them, not when using them.

PostgreSQL's `max_worker_processes` hasn't budged since 2014, but parallel queries, logical replication, and extensions keep demanding slots.

`max_wal_size` is a checkpoint trigger, not a maximum—and the real cost is paid by setting it too low, not too high.