Book Image

Learn PostgreSQL - Second Edition

By : Luca Ferrari, Enrico Pirozzi
1 (2)
Book Image

Learn PostgreSQL - Second Edition

1 (2)
By: Luca Ferrari, Enrico Pirozzi

Overview of this book

The latest edition of this PostgreSQL book will help you to start using PostgreSQL from absolute scratch, helping you to quickly understand the internal workings of the database. With a structured approach and practical examples, go on a journey that covers the basics, from SQL statements and how to run server-side programs, to configuring, managing, securing, and optimizing database performance. This new edition will not only help you get to grips with all the recent changes within the PostgreSQL ecosystem but will also dig deeper into concepts like partitioning and replication with a fresh set of examples. The book is also equipped with Docker images for each chapter which makes the learning experience faster and easier. Starting with the absolute basics of databases, the book sails through to advanced concepts like window functions, logging, auditing, extending the database, configuration, partitioning, and replication. It will also help you seamlessly migrate your existing database system to PostgreSQL and contains a dedicated chapter on disaster recovery. Each chapter ends with practice questions to test your learning at regular intervals. By the end of this book, you will be able to install, configure, manage, and develop applications against a PostgreSQL database.
Table of Contents (22 chapters)
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Index

Extending the Database – the Extension Ecosystem

Extensions are a powerful way of packaging together related database objects, such as functions, routines, and tables, making the management of the objects as a single unit easier. Extensions allow you and other developers to extend the already rich PostgreSQL set of features by providing a clear, concise, and accurate way of installing, upgrading, and removing features and objects. In this chapter, you will see what extensions are and how they can be installed, upgraded, or removed with different tools. Moreover, you will learn how to build your own extension from scratch so that you will be immediately productive in packaging your own scripts and tools to distribute across other databases and PostgreSQL instances.

The chapter consists of the following topics:

  • Introducing extensions
  • Managing extensions
  • Exploring the PGXN client
  • Installing extensions
  • Creating your own extension
...