Chapter 1. Introduction

Table of Contents
What is Postgres?
A Short History of Postgres
About This Release
Copyrights and Trademarks

This document is the user manual for the PostgreSQL database management system, originally developed at the University of California at Berkeley. PostgreSQL is based on Postgres release 4.2. The Postgres project, led by Professor Michael Stonebraker, has been sponsored by the Defense Advanced Research Projects Agency (DARPA), the Army Research Office (ARO), the National Science Foundation (NSF), and ESL, Inc.

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