Book Image

Mastering PostgreSQL 15 - Fifth Edition

By : Hans-Jürgen Schönig
Book Image

Mastering PostgreSQL 15 - Fifth Edition

By: Hans-Jürgen Schönig

Overview of this book

Starting with an introduction to the newly released features of PostgreSQL 15, this updated fifth edition will help you get to grips with PostgreSQL administration and how to build dynamic database solutions for enterprise apps, including designing both physical and technical aspects of the system. You'll explore advanced PostgreSQL features, such as logical replication, database clusters, advanced indexing, and user management to manage and maintain your database. You'll then work with the PostgreSQL optimizer, configure PostgreSQL for high speed, and move from Oracle to PostgreSQL. Among the other skills that the book will help you build, you’ll cover transactions, handling recursions, working with JSON and JSONB data, and setting up a Patroni cluster. It will show you how to improve performance with query optimization. You'll also focus on managing network security and work with backups and replication while exploring useful PostgreSQL extensions that optimize the performance of large databases. By the end of this PostgreSQL book, you’ll be able to use your database to its utmost capacity by implementing advanced administrative tasks with ease.
Table of Contents (16 chapters)

Making Sense of Backups and Replication

In Chapter 9, Handling Backup and Recovery, we learned a lot about backup and recovery, which is essential for administration. So far, only logical backups have been covered – that will be remedied in this chapter.

This chapter is all about PostgreSQL’s transaction log and what we can do with it to improve our setup and make things more secure.

In this chapter, we will cover the following topics:

  • Understanding the transaction log
  • Transaction log archiving and recovery
  • Setting up asynchronous replication
  • Upgrading to synchronous replication
  • Making use of replication slots
  • Making use of the CREATE PUBLICATION and CREATE SUBSCRIPTION commands
  • Setting up an HA cluster using Patroni

By the end of this chapter, you will be able to set up transaction log archiving and replication. In addition to that, you will be able to understand basic concepts to handle High Availability and apply them in...