On 11 June 2015 at 15:35, Yves Dorfsman <yves@zioup.com> wrote:
On 2015-06-11 08:20, Geoff Winkless wrote: > On 11 June 2015 at 15:17, Marc Mamin <M.Mamin@intershop.de > <mailto:M.Mamin@intershop.de>>wrote: > > >But COUNT(*) > > > >does have meaning - it means "the number of rows". > > which rows? :-) > > > The number of rows in the query, as well you know :)
But interestingly
postgres=# select count(*) where 1=0; count ------- 0 (1 row)