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). Greetings, Andres Freund -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
