Re: Cost-based Optimizers

> My knowledge about the topic is not most up to date. But as far as > I know Ingres has implemented histograms. Although Ingres were very much the pioneers of intelligent optimisation, Informix also now have most/ all of their features. Histograms are in 6.00. And, for what it's worth, the last time I was in touch with Informix R&D (which is a couple of years now) they'd hired a good number of ex-Ingres people... akent@cix.compulink.co.uk (Andy Kent) -------------------------------------