Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

By : Simon Riggs, Gianni Ciolli
Book Image

PostgreSQL 10 Administration Cookbook - Fourth Edition

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 10 allows users to scale up their PostgreSQL infrastructure. This book takes a step-by-step, recipe-based approach to effective PostgreSQL administration. Throughout this book, you will be introduced to these new features such as logical replication, native table partitioning, additional query parallelism, and much more. You will learn how to tackle a variety of problems that are basically the pain points for any database administrator - from creating tables to managing views, from improving performance to securing your database. More importantly, the book pays special attention to topics such as monitoring roles, backup, and recovery of your PostgreSQL 10 database, ensuring high availability, concurrency, and replication. By the end of this book, you will know everything you need to know to be the go-to PostgreSQL expert in your organization.
Table of Contents (14 chapters)

Accessing objects in other PostgreSQL databases

Sometimes, you may want to access data in other PostgreSQL databases. The reasons may be as follows:

  • You have more than one database server, and you need to extract data (such as reference) from one server and load it into the other.
  • You want to access data that is in a different database on the same database server, which was split for administrative purposes.
  • You want to perform some changes that you do not wish to rollback in the event of an error or transaction abort. These are known as function side-effects or autonomous transactions.

You might also be considering this because you are exploring the scale out, sharding, or load balancing approaches. If so, read the last part of this recipe, the See also section, and then skip to Chapter 12, Replication and Upgrades.

PostgreSQL includes two separate mechanisms for accessing...