On Friday 04 April 2008 16:36, Tom Lane wrote: > Terry Lee Tucker <terry@xxxxxxxxxxxxxxx> writes: > > I am converting our application from 7.4.19 to 8.3.1. In the old scheme > > of things, I was generating an interval between two timestamps and > > evaluating the interval string in another set of trigger code. I was > > doing the following: > > IF new.ontime IS NOT NULL AND new.ontime ~* 'ago' THEN > > With the new casting rules, this doesn't work. > > Well, you could force it to work by casting new.ontime to text > explicitly, but this is a pretty horrid way of testing for a negative > interval anyhow. I'd be inclined to do something like > new.ontime < '0 seconds' > > BTW, the IS NOT NULL test is redundant too, since the comparison > can't succeed for a null. > > regards, tom lane Thanks Tom. That's what I'm looking for. -- Terry Lee Tucker Turbo's IT Manager Turbo, division of Ozburn-Hessey Logistics 2251 Jesse Jewell Pkwy NE Gainesville, GA 30501 Tel: (336) 372-6812 Fax: (336) 372-6812 Cell: (336) 404-6987 terry@xxxxxxxxxxxxx www.turbocorp.com