"Sam Liddicott" <sam(dot)liddicott(at)ananova(dot)com> writes:
> Do you feel the random page cost of 3 is good to solve this?
For the moment, anyway. There have been a couple of rounds of
pgsql-hackers discussion about whether to lower the default value of
random_page_cost, but so far no one has done any experiments that
would be needed to establish a good new value. (The current default
of 4.0 is based on some old experiments I did. I'm quite willing to
accept that those experiments might have been flawed, but not willing
to replace the number without seeing better experiments...)
regards, tom lane