On Thu, Feb 26, 2015 at 10:27 PM, Andres Freund <and...@2ndquadrant.com> wrote: > > On 2015-02-26 20:23:33 -0500, Tom Lane wrote: > > Josh Berkus <j...@agliodbs.com> writes: > > > On 02/26/2015 01:59 PM, Grzegorz Parka wrote: > > >> I'm interested in one of old TODO items related to the optimizer - > > >> 'Consider compressed annealing to search for query plans'. > > > > > You might look at the earlier attempt to make the GEQO replacement > > > "pluggable". That project failed to complete sufficiently to be a > > > feature though, but it did enough to show that our current GEQO > > > implementation was suboptimal. > > > > > I'm currently searching for this project ... it was a GSOC project, but > > > I think before they required posting to Google Code. > > > > I seem to recall somebody demo'ing a simulated-annealing GEQO replacement > > at PGCon a couple years back. It never got to the point of being a > > submitted patch though. > > Yea, it was Jan Urbański (CCed). >
And the project link: https://github.com/wulczer/saio Regards, -- Fabrízio de Royes Mello Consultoria/Coaching PostgreSQL >> Timbira: http://www.timbira.com.br >> Blog: http://fabriziomello.github.io >> Linkedin: http://br.linkedin.com/in/fabriziomello >> Twitter: http://twitter.com/fabriziomello >> Github: http://github.com/fabriziomello
