Re: Using quicksort for every external sort run

On Fri, Nov 20, 2015 at 12:50 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Thu, Nov 19, 2015 at 5:42 PM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
>> I would like more opinions on the multipass_warning message. I can
>> write a patch that creates a new system view, detailing how sort were
>> completed, if there is demand.
>
> I think a warning message is a terrible idea, and a system view is a
> needless complication. If the patch is as fast or faster than what we
> have now in all cases, then we should adopt it (assuming it's also
> correct and well-commented and all that other good stuff). If it's
> not, then we need to analyze the cases where it's slower and decide
> whether they are significant enough to care about.

Maybe I was mistaken to link the idea to this patch, but I think it
(or something involving a view) is a good idea. I linked it to the
patch because the patch makes it slightly more important than before.

--
Peter Geoghegan