Re: [ADMIN] pg_class reltuples/relpages not updated by autovacuum/vacuum - Mailing list pgsql-hackers

Pavan Deolasee <pavan.deolasee@gmail.com> writes:
> On Sun, May 29, 2011 at 8:10 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> That would require proof, not just suggestion. �Skipping pages will
>> defeat the OS read-ahead algorithm, and so could easily cost more than
>> reading them.

> My worry is what we have right now is also based on just assumptions
> and gut feelings rather than any numbers.

So go collect some numbers.
        regards, tom lane