Skip to Content
PostgreSQL 10 Administration Cookbook - Fourth Edition
book

PostgreSQL 10 Administration Cookbook - Fourth Edition

by Simon Riggs, Gianni Ciolli
May 2018
Intermediate to advanced content levelIntermediate to advanced
576 pages
30h 25m
English
Packt Publishing
Content preview from PostgreSQL 10 Administration Cookbook - Fourth Edition

Getting ready

First, verify that you really have a complex query.

A query that simply returns lots of database fields is not complex by itself. In order to be complex, the query has to join lots of tables in complex ways.

The easiest way to find out whether the query is complex is to look at the output of EXPLAIN. If it has lots of rows, the query is complex, and it's not just that there is a lot of text.

All examples in this recipe have been written with a very typical use case in mind: sales.

What follows is a description of the fictitious model used in this recipe. The most important fact is the sale event, stored in the sale table (I specifically used the word fact, as this is the right term to use in a data warehousing context). Every ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

PostgreSQL 13 Cookbook

PostgreSQL 13 Cookbook

Vallarapu Naga Avinash Kumar
PostgreSQL 9 Administration Cookbook - Second Edition

PostgreSQL 9 Administration Cookbook - Second Edition

Simon Riggs, GIANNI CIOLLI, Hannu Krosing, Gabriele Bartolini

Publisher Resources

ISBN: 9781788474924Supplemental Content