=?UTF-8?Q?Stanis=C5=82aw_Skonieczny?= <stanislaw.skoniec...@gmail.com> writes: > What bothers me is that the inner plan cost (7430940) is higher than the > outer plan cost (1131699).
I think it is estimating (based on knowledge of the ranges of join keys
in the two relations) that that input subplan won't need to be run to
completion. See initial_cost_mergejoin in costsize.c.
regards, tom lane
