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)

Setting parameters for particular groups of users

PostgreSQL supports a variety of ways of defining parameter settings for various user groups. This is very convenient, especially to manage user groups that have different requirements.

How to do it...

  1. For all users in the saas database, use the following commands:
ALTER DATABASE saas
SET configuration_parameter = value1;
  1. For a user named simon connected to any database, use this:
ALTER ROLE simon
SET configuration_parameter = value2;
  1. Alternatively, you can set a parameter for a user only when connected to a specific database, as follows:
ALTER ROLE simon
IN DATABASE saas
SET configuration_parameter = value3;

The user won't know that these have been executed specifically...