Richard Huxton wrote: > Poul Møller Hansen wrote: > >> Does anyone know how to find the row with the nearest numeric value, >> not necessarily an exact match ? > > > While the other answers all do their job, and in one go too, I'd be > surprised if you found anything faster than: > > SELECT myval FROM mytable WHERE myval > 1234 ORDER BY myval LIMIT 1 > UNION ALL > SELECT myval FROM mytable WHERE myval < 1234 ORDER BY myval DESC LIMIT 1 > > That gives you (up to) two values to look at, but should use any index > you have on myval. > > You can always sort the results by abs(myval) then if you don't want to > handle two values in the application layer. > Ahh, should that be >= and <= ? ;) -- Peter Fein pfein@xxxxxxxxx 773-575-0694 Basically, if you're not a utopianist, you're a schmuck. -J. Feldman ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq