Andres Freund <andres(at)anarazel(dot)de> wrote:
> - Sometimes adding a single join more/less dropped the planning time
> to a fraction - strange.
> - The same with changing {join,from}_collapse_limit - sometimes
> changing it yields plan times different by orders of magnitudes in
> both directions.
That seems like the place to spend the time looking, rather than
nibbling away at the run times by a few percent after letting them
jump by orders of magnitude.
-Kevin