The open source version of PostgreSQL only includes the database-management system and
the associated programming interfaces. The Red Hat version of PostgreSQL
includes a graphical installer and limited support for the installation.
The main factor in deciding whether to use the open source
version of PostgreSQL or a commercially packaged version
should be your business requirements. If you have a knowledgeable on-site
technical-support staff, the community version may do well for you.
However, if you need installation, configuration, and management support,
you may be better served by purchasing a commercial version of
PostgreSQL.
If you prefer to do business with smaller consulting companies, we have compiled a
modest list of professional companies providing support for PostgreSQL in the Section called Commercial Support
."
