Book Image

Mastering PostgreSQL 10

Book Image

Mastering PostgreSQL 10

Overview of this book

PostgreSQL is an open source database used for handling large datasets (big data) and as a JSON document database. This book highlights the newly introduced features in PostgreSQL 10, and shows you how you can build better PostgreSQL applications, and administer your PostgreSQL database more efficiently. We begin by explaining advanced database design concepts in PostgreSQL 10, along with indexing and query optimization. You will also see how to work with event triggers and perform concurrent transactions and table partitioning, along with exploring SQL and server tuning. We will walk you through implementing advanced administrative tasks such as server maintenance and monitoring, replication, recovery, high availability, and much more. You will understand common and not-so-common troubleshooting problems and how you can overcome them. By the end of this book, you will have an expert-level command of advanced database functionalities and will be able to implement advanced administrative tasks with PostgreSQL 10.
Table of Contents (15 chapters)

Transaction log archiving and recovery

After this brief introduction to the transaction log in general, it is time to focus our attention on the process of transaction log archiving. As you have seen, the transaction log contains a sequence of binary changes made to the storage system. So, why not use it to replicate database instances and do a lot of other cool stuff?

Configuring for archiving

The first thing we want to achieve in this chapter is to create a configuration to perform standard Point-In-Time Recovery (PITR). There are a couple of advantages of PITR over ordinary dumps:

  • You will lose less data because you can restore to a certain point in time and not just to the fixed backup point
  • Restoring will be faster because...