Book Image

PostgreSQL 14 Administration Cookbook

By : Simon Riggs, Gianni Ciolli
5 (1)
Book Image

PostgreSQL 14 Administration Cookbook

5 (1)
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 14 allows you to scale up your PostgreSQL infrastructure. With this book, you'll take a step-by-step, recipe-based approach to effective PostgreSQL administration. This book will get you up and running with all the latest features of PostgreSQL 14 while helping you explore the entire database ecosystem. You’ll learn how to tackle a variety of problems and pain points you may face as a database administrator such as creating tables, managing views, improving performance, and securing your database. As you make progress, the book will draw attention to important topics such as monitoring roles, validating backups, regular maintenance, and recovery of your PostgreSQL 14 database. This will help you understand roles, ensuring high availability, concurrency, and replication. Along with updated recipes, this book touches upon important areas like using generated columns, TOAST compression, PostgreSQL on the cloud, and much more. By the end of this PostgreSQL book, you’ll have gained the knowledge you need to manage your PostgreSQL 14 database efficiently, both in the cloud and on-premise.
Table of Contents (14 chapters)

Scheduling jobs for regular background execution

Normal user tasks cause the user to wait while the task executes. Frequently, there is a requirement to run tasks or "jobs" in the background without the user present, which is referred to as a Job Scheduler component. You can use cron, but some users look for an in-database solution.

pgAgent is our recommended job scheduler for Postgres, which is supplied as part of the pgAdmin package, but a separate component. pgAgent can be operated from the pgAdmin GUI or using a simple command-line API. pgAgent keeps a history of job executions so that you can see what is happening and what is not happening.

Getting ready

If you want to manage a new database from an existing Pgagent installation, then you don't need to prepare anything. If you want to set up a new pgagent database, execute the following command:

CREATE EXTENSION pgagent;

pgAgent is an external program, not a binary plugin, so you do not need to modify...