On Wed, Sep 30, 2009 at 1:12 PM, Matthew Wakeling <matt...@flymine.org> wrote: > > Episode umpteen of the ongoing saga with my GiST indexes. > > For some reason, GiST uses loads of CPU. I have a query that runs entirely > out of cache, and it takes ages. This much I have tried to fix and failed so > far. > > What I would now like to do is to tell postgres about it, so that the > EXPLAINs are correct. Is there a way to tell Postgres that an operator has a > large CPU cost? I can tell it what the join selectivity is, but I can't find > anything about CPU cost.
Not that I know of, but seems like it would be a reasonable extension. ...Robert -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
