On 2015-06-11 08:20, Geoff Winkless wrote:
> On 11 June 2015 at 15:17, Marc Mamin <[email protected]
> <mailto:[email protected]>>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)
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