Tom Lane escribió: > Robert Haas <robertmh...@gmail.com> writes: > > On Mon, Mar 29, 2010 at 4:33 AM, Simon Riggs <si...@2ndquadrant.com> wrote: > >> So I think we need a parameter for join removal also. > > > I had this in my original patch but Tom wanted it taken out. > > And I still don't want it. We are NOT going in the direction of adding > an enable_ knob for every single planner activity --- do you have the > faintest idea how many there would be? We have such knobs for a small > number of cases where it's arguable that the action might be the wrong > thing for a particular query. Join removal, if applicable, can't > possibly be the wrong choice; it's better than every other join strategy.
It seems that what's really needed is some debug output to be able to find out what it did. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
