El 28/05/2014 22:12, "Peter Geoghegan" <pg(at)heroku(dot)com> escribió:
>
> On Wed, May 28, 2014 at 5:59 PM, Claudio Freire <klaussfreire(at)gmail(dot)com>
wrote:
> > For nestloop, correct me if I'm wrong, but index scan nodes don't have
> > visibility of the next tuple to be searched for.
>
> Nested loop joins are considered a particularly compelling case for
> prefetching, actually.
Of course. I only doubt it can be implemented without not so small changes
to all execution nodes.
I'll look into it
>
> --
> Peter Geoghegan