Ingres began as a research project at the University of California, Berkeley, starting in the early 1970s and ending in 1985.[2] The original code, like that from other projects at Berkeley, was available at minimal cost under a version of the BSD license. Ingres spawned a number of commercial database applications, including Sybase, Microsoft SQL Server, NonStop SQL and a number of others. Postgres (Post Ingres), a project which started in the mid-1980s, later evolved into PostgreSQL. It is ACID compatible and is fully transactional (including all DDL statements) and is part of the Lisog open-source stack initiative.
We support Ingres directly in our products! You don't need separate drivers and can immediately connect to your database.