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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

By : GIANNI CIOLLI, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs
4.8 (27)
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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

4.8 (27)
By: GIANNI CIOLLI, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs

Overview of this book

PostgreSQL has seen a huge increase in its customer base in the past few years and is becoming one of the go-to solutions for anyone who has a database-specific challenge. This PostgreSQL book touches on all the fundamentals of Database Administration in a problem-solution format. It is intended to be the perfect desk reference guide. This new edition focuses on recipes based on the new PostgreSQL 16 release. The additions include handling complex batch loading scenarios with the SQL MERGE statement, security improvements, running Postgres on Kubernetes or with TPA and Ansible, and more. This edition also focuses on certain performance gains, such as query optimization, and the acceleration of specific operations, such as sort. It will help you understand roles, ensuring high availability, concurrency, and replication. It also draws your attention to aspects like validating backups, recovery, monitoring, and scaling aspects. This book will act as a one-stop solution to all your real-world database administration challenges. By the end of this book, you will be able to manage, monitor, and replicate your PostgreSQL 16 database for efficient administration and maintenance with the best practices from experts.
Table of Contents (15 chapters)
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13
Other Books You May Enjoy
14
Index

Hot logical backup of all databases

If you have more than one database in your PostgreSQL server, you may want to make a logical backup of all of the databases at the same time.

How to do it…

Our recommendation is that you repeat exactly what you do for one database for each database in your cluster. You can run individual dumps in parallel if you want to speed things up.

Once this is complete, dump the global information using the following command:

pg_dumpall -g

How it works…

To back up all databases, you may be told that you only need to use the pg_dumpall utility. The following are four good reasons why you shouldn’t do that:

  • If you use pg_dumpall, the only output produced will be in a script file. Script files can’t benefit from all the features of archive files, such as parallel and selective restore of pg_restore. By making your backup in this way, you will immediately deprive yourself of flexibility and versatility...

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