Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Tom Lane wrote:
>> See "Approximating block accesses in database organizations", S. B. Yao,
>> Communications of the ACM, Volume 20 Issue 4, April 1977 Pages 260-261
> That sounds nice all right, but I'm not sure it's actually helpful,
> because the article text is not available anywhere. I doubt most people
> will spend 15 bucks to buy that paper ... so we don't actually know
> whether the paper supports the chosen formula :-) unless you have a
> CACM subscription and can verify it.
Well, I do and I did, see my previous response.
> I think it's good to have the ACM reference anyway, for posterity, but
> it'd be good to (additionally) have something that people can read.
I'm just concerned about what happens when the Dellera paper stops being
available. I don't mind including that URL as a backup to the written-out
argument I just suggested.
regards, tom lane