Understanding vacuuming operations, Write-Ahead Logs (WAL), and MVCC (Multi-Version Concurrency Control).
The official Mastering PostgreSQL Administration guide includes deep dives into installation, configuration, maintenance, monitoring, and recovery. Mastering PostgreSQL Administration - Bruce Mom...
For foundational concepts, his book PostgreSQL: Introduction and Concepts provides a detailed historical and technical overview of the system. Core Administration Topics Covered Understanding vacuuming operations