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Mastering PostgreSQL 12 - Third Edition
book

Mastering PostgreSQL 12 - Third Edition

by Hans-Jürgen Schönig
November 2019
Beginner to intermediate content levelBeginner to intermediate
470 pages
11h 59m
English
Packt Publishing
Content preview from Mastering PostgreSQL 12 - Third Edition

Adjusting parameters for good query performance

Writing good queries is the first step to achieving good performance. Without a good query, you will most likely suffer from bad performance. Therefore, writing good and intelligent code will give you the greatest edge possible. Once your queries have been optimized from a logical and semantical point of view, good memory settings can provide you with a final nice speedup.

In this section, we will learn what more memory can do for you and how PostgreSQL can use it for your benefit. Again, this section assumes that we are using single-core queries to make the plans more readable. To ensure that there is always just one core at work, use the following command:

test=# SET max_parallel_workers_per_gather ...
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Publisher Resources

ISBN: 9781838988821Supplemental Content