Enterprise quality open source databases are becoming a preferred option for organizations seeking to replace their legacy databases with a lower cost alternative, and PostgreSQL is an increasingly favored choice. 

However, lower costs for comparable database functionality is no substitute for a database platform that includes robust integrated tools, and the expertise and experience needed to support large enterprise mission-critical systems in need of 24x7 management, high availability, disaster recovery, data replication, and multiple deployment options.

This document explains the key differences between using PostgreSQL in the EDB Postgres Platform compared to self-supported PostgreSQL in a do-it-yourself solution.