Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

By : Simon Riggs, Gianni Ciolli
Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

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 10 allows users to scale up their PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. Throughout this book, you will be introduced to these new features such as logical replication, native table partitioning, additional query parallelism, and much more. You will learn how to tackle a variety of problems that are basically the pain points for any database administrator - from creating tables to managing views, from improving performance to securing your database. More importantly, the book pays special attention to topics such as monitoring roles, backup, and recovery of your PostgreSQL 10 database, ensuring high availability, concurrency, and replication. By the end of this book, you will know everything you need to know to be the go-to PostgreSQL expert in your organization.
Table of Contents (14 chapters)

The PostgreSQL superuser

In this recipe, you will learn how to grant right to a user to become a superuser.

A PostgreSQL superuser is a user that can do anything in the database, regardless of what privileges it has been granted. Many cloud databases do not allow this level of privilege to be granted. It is normal to place strict controls on users of this type.

How to do it...

  1. A user becomes a superuser when it is created with the SUPERUSER attribute set:
CREATE USER username SUPERUSER;
  1. A user can be deprived of its superuser status by removing the SUPERUSER attribute, using this command:
ALTER USER username NOSUPERUSER;
  1. A user can be restored to superuser status later, using the following command:
ALTER USER username...