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PostgreSQL Server Programming

You're reading from  PostgreSQL Server Programming

Product type Book
Published in Jun 2013
Publisher Packt
ISBN-13 9781849516983
Pages 264 pages
Edition 1st Edition
Languages
Concepts

Table of Contents (17) Chapters

PostgreSQL Server Programming
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
1. What Is a PostgreSQL Server? 2. Server Programming Environment 3. Your First PL/pgSQL Function 4. Returning Structured Data 5. PL/pgSQL Trigger Functions 6. Debugging PL/pgSQL 7. Using Unrestricted Languages 8. Writing Advanced Functions in C 9. Scaling Your Database with PL/Proxy 10. Publishing Your Code as PostgreSQL Extensions Index

Chapter 7. Using Unrestricted Languages

You may have noticed that some of the PLs in PostgreSQL can be declared as untrusted. They all end in letter u to remind you that they are untrusted each time you use them to create a function.

This untrustedness brings up many questions:

  • Does being untrusted mean that such languages are somehow inferior to trusted ones?

  • Can I still write an important function in an untrusted language?

  • Will they silently eat my data and corrupt the database?

The answers are no, yes, and maybe respectively. Let's discuss these questions in order.

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