Emma McGrattan of Ingres offers a “25 facts” post about Ingres. 24 really are about Ingres. Some are interesting (who knew Ingres still used a lot of Quel?). Some are if anything understated — e.g., there are lots of current CEOs who are Ingres alums (Dave Kellogg and Dennis Moore jump to mind). Only one is a real eyebrow-raiser.
Point 23 says “The average tenure of an Ingres Engineer is 15+ years.” On the other hand, Point 3 says “The longest serving member of Ingres staff is John Smedley who has been with us since June of 1987.” And most of Ingres’ technical staff left after Ingres was acquired by CA, which occurred a few months shy of 15 years ago. Reconciling all that is challenging.
Actually, I was dubious about a second claim too, namely that Ingres/Star was the first distributed DBMS; I thought that the distributed version of Tandem NonStop SQL actually predated it by a few years. But a somewhat contemporaneous article with a number of distributed DBMS dates shows my memory was wrong on that score.