| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Eric Jain <jain(at)gmx(dot)net> |
| Cc: | Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com>, PostgreSQL General <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: COUNT DISTINCT |
| Date: | 2000-07-17 13:25:20 |
| Message-ID: | 200007171325.JAA00431@candle.pha.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
[ Charset ISO-8859-1 unsupported, converting... ]
> > Depending on what you want, you might be able to just get away with
> > using coalesce on each of them...
> >
> > select count (distinct ( coalesce(text(advert_no), 'NULL') ||
> > coalesce(text(pool_id), 'NULL' ) ) ) from redirect;
>
> Great... This works perfectly. A bit of a monster though :-)
Hey, we didn't design SQL, we just implement it. :-)
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Alex Bolenok | 2000-07-17 13:35:44 | Re: urgent help on function/trigger |
| Previous Message | Poul L. Christiansen | 2000-07-17 13:17:44 | Re: Trouble with RPM |