On 2014-10-17 13:12:27 -0400, Tom Lane wrote:
> Well, that's pretty much cheating: it's too hard to disentangle what's
> coming from JIT vs what's coming from using a different accumulator
> datatype. If we wanted to depend on having int128 available we could
> get that speedup with a couple hours' work.
I think doing that when configure detects int128 would make a great deal
of sense. It's not like we'd save a great deal of complicated code by
removing the existing accumulator... We'd still have to return a
numeric, but that's likely lost in the noise cost wise.
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
Services
