On Wed, 21 Jan 2004, Tom Lane wrote:
> The GEQO planner module contains six different recombination algorithms,
> only one of which is actually used --- the others are ifdef'd out, and
> have been ever since we got the code. Does anyone see a reason not to
> prune the deadwood?
considering the recent discussion about REALLY slow query planning by the
GEQO module, it might be worth testing each one to see which works best
before lopping them off.
But I don't do anything that needs GEQO, so for me, it doesn't really
matter.