"PostgreSQL 9.0 High Performance" is your comprehensive guide to optimizing and troubleshooting PostgreSQL databases. This book blends theoretical principles with practical guidance to address performance challenges, covering hardware, software configuration, query optimization, and more. By following the insights in this book, you will enhance your skills in creating high-performance database systems. What this Book will help me do Understand best practices for improving PostgreSQL database performance. Learn how to select and configure hardware and operating systems to optimize database speed. Become proficient in optimizing queries and leveraging indexing for improved query performance. Discover techniques for scaling PostgreSQL databases using replication and partitioning. Understand how to monitor and analyze database performance using built-in and external tools. Author(s) The authors of this book are experienced database administrators and engineers with extensive industry experience, having scaled and optimized PostgreSQL installations for demanding applications. They specialize in sharing pragmatic, hands-on advice backed by deep theoretical knowledge. Their goal is to make complex database performance topics approachable for professionals. Who is it for? The ideal audience for this book includes intermediate to advanced database administrators who are currently using or planning to use PostgreSQL. It is also suitable for systems administrators wanting to optimize PostgreSQL deployment and developers who are interested in advanced database internals to improve application performance.