Just curious,
Is the number of record per page and the number of key per page taken in
consideration?
Tom Lane wrote:
>
> "Sam Liddicott" <sam.liddicott@ananova.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
>
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