Alex Stapleton <[EMAIL PROTECTED]> writes:
> Is this advisable?

Only if your database is small enough that you expect it to remain fully
cached in RAM.  In that case random_page_cost = 1 does in fact describe
the performance you expect Postgres to see.

People occasionally use values for random_page_cost that are much
smaller than physical reality would suggest, but I think this is mainly
a workaround for deficiencies elsewhere in the planner cost models.

                        regards, tom lane

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