Jacob Jackson at ByteofDev built something I can only describe as admirably irresponsible (and something I wish I had thought of first): claudegres, a “PostgreS

Idle sessions consume connection slots and backend memory—not locks or xmin. Learn when and how to reap them without sabotaging your connection pooler.

Replication slots promise to keep WAL forever—until PostgreSQL 18's new `idle_replication_slot_timeout` puts an expiration date on abandoned ones before they…

Idle transactions hold locks and block vacuums, turning one forgotten connection into a cascading outage.

ident_file tells the server where pg_ident.conf lives, but when it's wrong, the server just logs a quiet failure and keeps running.

`hot_standby_feedback` trades primary bloat to prevent query cancellations on standbys—but it only stops cleanup conflicts, not lock or drop conflicts, and…

PostgreSQL's hot_standby switch transforms a spare server into a readable replica, but the real tuning work happens elsewhere.

hba_file points to your authentication rules, not the rules themselves. Reload changes to pg_hba.conf instantly; restart when moving the file.

Hash and sort operations have wildly different relationships with memory, and `hash_mem_multiplier` lets you feed them separately.

PostgreSQL 16 lets servers accept delegated Kerberos credentials to act as users against other services, but it defaults to off because the trade-off is real…