Book Image

PostgreSQL 14 Administration Cookbook

By : Simon Riggs, Gianni Ciolli
5 (1)
Book Image

PostgreSQL 14 Administration Cookbook

5 (1)
By: Simon Riggs, Gianni Ciolli

Overview of this book

PostgreSQL is a powerful, open-source database management system with an enviable reputation for high performance and stability. With many new features in its arsenal, PostgreSQL 14 allows you to scale up your PostgreSQL infrastructure. With this book, you'll take a step-by-step, recipe-based approach to effective PostgreSQL administration. This book will get you up and running with all the latest features of PostgreSQL 14 while helping you explore the entire database ecosystem. You’ll learn how to tackle a variety of problems and pain points you may face as a database administrator such as creating tables, managing views, improving performance, and securing your database. As you make progress, the book will draw attention to important topics such as monitoring roles, validating backups, regular maintenance, and recovery of your PostgreSQL 14 database. This will help you understand roles, ensuring high availability, concurrency, and replication. Along with updated recipes, this book touches upon important areas like using generated columns, TOAST compression, PostgreSQL on the cloud, and much more. By the end of this PostgreSQL book, you’ll have gained the knowledge you need to manage your PostgreSQL 14 database efficiently, both in the cloud and on-premise.
Table of Contents (14 chapters)

Analyzing the real-time performance of your queries

The pg_stat_statements extension adds the capability to track the execution statistics of queries that are run in a database, including the number of calls, total execution time, the total number of returned rows, and internal information on memory and I/O access.

It is evident how this approach opens up new opportunities in PostgreSQL performance analysis by allowing database admins to get insights directly from the database through SQL and in real time.

Getting ready

The pg_stat_statements module is available as a contrib module of PostgreSQL. The extension must be installed as a superuser in the desired databases. It also requires administrators to add the library to the postgresql.conf file, as follows:

shared_preload_libraries = 'pg_stat_statements'

This change requires restarting the PostgreSQL server.

Finally, to use it, the extension must be installed...