Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
PostgreSQL 16 Administration Cookbook

You're reading from   PostgreSQL 16 Administration Cookbook Solve real-world Database Administration challenges with 180+ practical recipes and best practices

Arrow left icon
Product type Paperback
Published in Dec 2023
Publisher Packt
ISBN-13 9781835460580
Length 636 pages
Edition 1st Edition
Languages
Arrow right icon
Authors (5):
Arrow left icon
Boriss Mejías Boriss Mejías
Author Profile Icon Boriss Mejías
Boriss Mejías
Jimmy Angelakos Jimmy Angelakos
Author Profile Icon Jimmy Angelakos
Jimmy Angelakos
Simon Riggs Simon Riggs
Author Profile Icon Simon Riggs
Simon Riggs
Gianni Ciolli Gianni Ciolli
Author Profile Icon Gianni Ciolli
Gianni Ciolli
Vibhor Kumar Vibhor Kumar
Author Profile Icon Vibhor Kumar
Vibhor Kumar
+1 more Show less
Arrow right icon
View More author details
Toc

Table of Contents (15) Chapters Close

Preface 1. First Steps FREE CHAPTER 2. Exploring the Database 3. Server Configuration 4. Server Control 5. Tables and Data 6. Security 7. Database Administration 8. Monitoring and Diagnosis 9. Regular Maintenance 10. Performance and Concurrency 11. Backup and Recovery 12. Replication and Upgrades 13. Other Books You May Enjoy
14. Index

Logical replication

Logical replication allows us to stream logical data changes between two nodes. By logical, we mean streaming changes to data without referring to specific physical attributes such as a block number or row ID.

These are the main benefits of logical replication:

  • Performance is roughly two times better than that of the best trigger-based mechanisms.
  • Selective replication is supported, so we don’t need to replicate the entire database.
  • Replication can occur between different major releases, which can allow a zero-downtime upgrade.

PostgreSQL provides a feature called logical decoding, which can be used to stream a set of changes out of a primary server. This allows a primary and, since PostgreSQL 16, a standby to become a sending node in logical replication. The receiving node uses a logical replication process to receive and apply those changes, thereby implementing replication between those two nodes.

So far, we have...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image