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Mastering PostgreSQL 10

You're reading from   Mastering PostgreSQL 10 Expert techniques on PostgreSQL 10 development and administration

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Product type Paperback
Published in Jan 2018
Publisher Packt
ISBN-13 9781788472296
Length 428 pages
Edition 1st Edition
Languages
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Author (1):
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Hans-Jürgen Schönig Hans-Jürgen Schönig
Author Profile Icon Hans-Jürgen Schönig
Hans-Jürgen Schönig
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Table of Contents (15) Chapters Close

Preface 1. PostgreSQL Overview 2. Understanding Transactions and Locking FREE CHAPTER 3. Making Use of Indexes 4. Handling Advanced SQL 5. Log Files and System Statistics 6. Optimizing Queries for Good Performance 7. Writing Stored Procedures 8. Managing PostgreSQL Security 9. Handling Backup and Recovery 10. Making Sense of Backups and Replication 11. Deciding on Useful Extensions 12. Troubleshooting PostgreSQL 13. Migrating to PostgreSQL 14. Other Books You May Enjoy

Improving stored procedure performance

So far, you have seen how to write basic stored procedures as well as triggers in various languages. Of course, there are many more languages supported. Some of the most prominent ones are PL/R (R is a powerful statistics package) and PL/v8 (which is based on the Google JavaScript engine). However, those languages are beyond the scope of this chapter (regardless of their usefulness).

In this section, we will focus on improving the performance of a stored procedure. There are a few ways in which we can speed up processing:

  • Reducing the number of calls
  • Using cached plans
  • Giving hints to the optimizer

In this chapter, all three main areas will be discussed.

Reducing the number of function calls

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