Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Book Image

PostgreSQL Administration Cookbook, 9.5/9.6 Edition - Third Edition

Overview of this book

PostgreSQL is a powerful opensource database management system; now recognized as the expert's choice for a wide range of applications, it has an enviable reputation for performance and stability. PostgreSQL provides an integrated feature set comprising relational database features, object-relational, text search, Geographical Info Systems, analytical tools for big data and JSON/XML document management. Starting with short and simple recipes, you will soon dive into core features, such as configuration, server control, tables, and data. You will tackle a variety of problems a database administrator usually encounters, from creating tables to managing views, from improving performance to securing your database, and from using monitoring tools to using storage engines. Recipes based on important topics such as high availability, concurrency, replication, backup and recovery, as well as diagnostics and troubleshooting are also given special importance. By the end of this book, you will have all the knowledge you need to run, manage, and maintain PostgreSQL efficiently.
Table of Contents (13 chapters)

Recovery of a dropped/damaged table

You may drop or even damage a table in some way. Tables could be damaged for physical reasons, such as disk corruption, or they could also be damaged by running poorly specified UPDATE or DELETE commands, which update too many rows or overwrite critical data.

Recovering from this backup situation is a common request.

How to do it...

The methods differ, depending on the type of backup you have available. If you have multiple types of backup, you have a choice.

Logical - from custom dump taken with pg_dump -F c

If you've taken a logical...