Documentation → PostgreSQL 6.3

Unsupported versions: 6.3

This documentation is for an unsupported version of PostgreSQL.
You may want to view the same page for the current version, or one of the other supported versions listed above instead.

PostgreSQL
Prev		Next

Chapter 30. Extending SQL: An Overview

Table of Contents
How Extensibility Works
The Postgres Type System
About the Postgres System Catalogs

In the sections that follow, we will discuss how you can extend the Postgres SQL query language by adding:

functions
types
operators
aggregates

Prev	Home	Next
Architecture	Up	How Extensibility Works