On 14 January 2015 at 13:29, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> One thing they could still leak is the number of times they got
> called, and thus possibly the number of unseen rows. Now if the
> expressions get constant-folded away that won't be an issue, but a
> clever user can probably avoid that.
>
Right now, EXPLAIN ANALYSE can be used to tell you the number of
unseen rows. Is that something that people are concerned about, and
are there any plans to change it?
Regards,
Dean