Restore to the moment before the disaster using eight parameters that answer where replay stops, which timeline to follow, and what to do when you get there.

Create replicas with a single command, but master the procedure for replacing a failed primary—that's where things get tricky and installations break.

Standby lagging on network storage? `recovery_prefetch` lets WAL replay ask the kernel to read pages before it needs them, turning seventeen minutes of…

Read replicas are one tool, but tuning a replica for one job and sending it another is a recipe for conflict.

Delay a standby on purpose to keep a queryable copy of your database before the DELETE without a WHERE clause happened.

A read replica is a PostgreSQL server in permanent recovery that accepts queries—and nearly every surprise it causes follows from that fact.

After a crash, PostgreSQL syncs every file in your data directory before replaying any WAL—and on large clusters, this can consume minutes.

A hook that fires exactly once at promotion or restore completion—but the server is neither ready nor recovering while your command runs.

The planner charges `random_page_cost` per index page based on how uncorrelated the index is—but the name lies.

Dumping across major versions? A reserved keyword can silently break constraints and policies.