On 02/26/2015 05:50 PM, Fabrízio de Royes Mello wrote: > > On Thu, Feb 26, 2015 at 10:27 PM, Andres Freund <and...@2ndquadrant.com > <mailto:and...@2ndquadrant.com>> wrote: >> >> On 2015-02-26 20:23:33 -0500, Tom Lane wrote: >> > Josh Berkus <j...@agliodbs.com <mailto: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
So what w'ere saying, Grzegorz, is that we would love to see someone pick this up and get it to the point of making it a feature as a GSOC project. I think if you can start from where Jan left off, you could actually complete it. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
