> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> >> Jelle Ouwerkerk <jelle@openface.ca> writes:
> > Also, is there a way to randomize the order of a result set?
> >>
> >> There's always
> >> SELECT * FROM foo ORDER BY random();
>
> > However:
> > test=> select * from pg_class order by random();
> > does return some output. Is it random, and if so, how?
>
> Sure. The function is marked noncachable, so it gets evaluated
> afresh at each row --- but only once per row, as the sort step doesn't
> recompute any values. Should work just peachy, and it seems to do
> so in a couple quick tests.
But random returns a random value from 0-1, right? How does that work
in ORDER BY?
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026
