Ühel kenal päeval, E, 2006-04-03 kell 09:55, kirjutas Tom Lane: > (2) Some of the index code is itself deliberately nondeterministic. > I'm thinking in particular of the move-right-or-not choice in > _bt_insertonpg() when there are many equal keys, but randomization is > in general a useful algorithmic technique that we'd have to forswear.
Why can't we just order "many equal keys" by ctid ? This would align the run of equal keys with table order, likely making index scans run faster, especially on very long equal runs. ------------ Hannu ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
