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
Contributors
Preface
Index

Introduction


First, set up access rules into the database server. PostgreSQL allows you to control access based upon the host that is trying to connect, using the pg_hba.conf file. You can specify SSL connections if needed or skip that if the network is secure. You can specify the use of SCRAM authentication using 256 bit keys, as well as many other mechanisms.

Next, set up the role and privileges for accessing your data. Databases are mostly used to store data, with several restrictions on how it can be used. Some records or tables can only be seen by certain users, and even those tables that are visible to everyone can have restrictions in terms of who can insert new data or change the existing data. All of this is managed by a privilege system, where users are granted different privileges for different tables or other database objects, such as schemas or functions.

It is good practice not to grant these privileges directly to users, but to use an intermediate role to collect a set of privileges...