Re: PG & random() strangeness

"Sergey E. Koposov" <math@sai.msu.ru> writes:
> On Tue, 4 May 2010, Tom Lane wrote:
>> They aren't; or at least you've not provided any evidence that they were.

> I think I did, since:

> ## select id ,count(*) from tmpx group by (id) having count(*)>1;
>           id         | count
> --------------------+-------
>    0.519465064629912 |     2
>   0.0100625408813357 |     2
>    0.394671014975756 |     2
> (3 rows)

> and
> ## select id from tmpx where id > 0.51119 and id < 0.51120;
>          id
> -------------------
>   0.511193082667887
>   0.511194097343832
> (2 rows)

And?  Those aren't in any of the groups the first query identified.

            regards, tom lane