Guys, > While it's not possible to get accurate estimates from a fixed size sample, > I think it would be possible from a small but scalable sample: say, 0.1% of > all data pages on large tables, up to the limit of maintenance_work_mem.
BTW, when I say "accurate estimates" here, I'm talking about "accurate enough for planner purposes" which in my experience is a range between 0.2x to 5x. -- --Josh Josh Berkus Aglio Database Solutions San Francisco ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
