Book Image

PostgreSQL 11 Administration Cookbook

By : Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala
Book Image

PostgreSQL 11 Administration Cookbook

By: Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala

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 11 allows you to scale up your PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. The book will introduce you to new features such as logical replication, native table partitioning, additional query parallelism, and much more to help you to understand and control, crash recovery and plan backups. You will learn how to tackle a variety of problems and pain points for any database administrator such as creating tables, managing views, improving performance, and securing your database. As you make steady progress, the book will draw attention to important topics such as monitoring roles, backup, and recovery of your PostgreSQL 11 database to help you understand roles and produce a summary of log files, ensuring high availability, concurrency, and replication. By the end of this book, you will have the necessary knowledge to manage your PostgreSQL 11 database efficiently.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
About Packt

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 for managing user groups that have different requirements.

How to do it…

Follow these steps to set parameters at various levels as per the requirements:

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

The user won't know that these have been executed specifically for them. These are default settings, and in most cases they can be overridden if the user requires non-default values.

How it works…

You can set parameters for each of the following...