What is PostgreSQL ?
Free open source post-relational database system that runs on all major operating systems. PostgreSQL's 25 year development history provides a huge range of features for Developers and DBAs, delivered in a robust software server used world-wide. PostgreSQL is rated in the top 5 databases by DBEngine, above most commercial systems. With millions of deployments in embedded systems, major cloud providers and major on-premise installs, PostgreSQL is the most popular choice for new app development.