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)

Monitoring the progress of commands

PostgreSQL 14 now has a growing list of commands that have a "progress bar" – in other words, they provide information to show intermediate progress information for active commands.

Getting ready

Using the earlier recipes, identify the active processes that concern you:

SELECT pid, query
FROM pg_stat_activity
WHERE state = 'active';

If the query column indicates that they are one of the following actions, then we can look at detailed progress information for them:

  • Maintenance commands: ANALYZE, VACUUM, VACUUM FULL/CLUSTER
  • Index commands: CREATE INDEX, REINDEX
  • Backup/replication: BASE BACKUP
  • Data load/unload: COPY

At this time, SELECT statements don't provide detailed progress information.

How to do it…

Each type of command has specific progress information, so you must look in the view that's appropriate to the type of command.

All commands show...