Ron Mayer <[EMAIL PROTECTED]> writes: > Tom Lane wrote: >> BTW, I'm thinking that a "cost constant" probably ought to be measured >> in units of cpu_operator_cost.
> Any chance that costs could eventually change to real-world units? Define "real world units". If you like you can try to adjust things so that cpu_operator_cost bears some relation to elapsed-msec-on-your-own-machine, and scale everything else accordingly; indeed that's why we added seq_page_cost in 8.2. But it's awfully hard to see the numbers being very portable. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings