EnterpriseDB Corporation

PostgreSQL distribution with open source add-ons pre-packaged for convenience.

GridSQL is a PostgreSQL compatible database system for data warehousing. It supports shared-nothing clustering and aims to improve query performance by distributing data across multiple nodes.

PostgreSQL is a high-performance, professional-grade open-source database management system. It provides a reliable and powerful platform for running mission-critical applications, while allowing users to take advantage of the latest advances in hardware and software technology.