[ Thanks to Jane Walker for this link.
]
“What sets PostgreSQL apart from other
databases?“Robert Treat: As all DBMS make an attempt at
implementing both the relational model and the SQL standards, there
are certainly a number of similarities between PostgreSQL and all
of the other database systems available. Over the years, the key
differentiators I found are the structure of the PostgreSQL
project, the community around it and its BSD licensing…”