On Tue, Dec 12, 2006 at 06:29:07PM +0000, Tomi N/A wrote:
> Ragnar, Marc, thanks so much for the help: DISTINCT ON was *exactly*
> what I needed.
> It's not a part of any SQL standard I know of, but does the job
> _wonderfully_.
It's the single most useful non-standard SQL feature postgresql has. It
is thus simultaneously bad (from a portatbility aspect) and brilliant
(because it's a million times easier and faster than the alternatives).
Have a nice day,
--
Martijn van Oosterhout <kleptog@svana.org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.