On 12/10/05, Havasvölgyi Ottó <h(dot)otto(at)freemail(dot)hu> wrote:
> Hi,
>
> I would like to select the count of distinct rows in a table.
>
> SELECT COUNT(DISTINCT *) FROM mytable;
>
> This does not work. How can I do it with Postgres?
>
> Thanks,
> Otto
>
I guess what you need is to know how many times a single row is
duplicated so i think what you need is something like this:
SELECT fld1, COUNT(DISTINCT fld1)
FROM (SELECT ROW(*) as fld1 FROM mytable) AS foo
GROUP BY fld1;
--
regards,
Jaime Casanova
(DBA: DataBase Aniquilator ;)