On Sat, Mar 05, 2005 at 03:46:53AM +0200, Tzahi Fadida wrote: > Its called a "temporal database". > Usually its intended for medical or police databases where > you need a hind sight. i.e. if today is 31/12/2005, what did we know at > 20/12/2005. > for example, for a doctor appearing at court and required to testify > what he knew at 20/12/2005. > Very cool. > It would be nice if postgreSQL could have a switch that > could turn it into a temporal database.
It used to be builtin a long time ago. It's since been moved to the contrib module "timetravel". It does historical queries and stuff... -- Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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