| From: | Manfred Koizar <mkoi-pg(at)aon(dot)at> |
|---|---|
| To: | sailesh(at)cs(dot)berkeley(dot)edu |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, pgsql-performance(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] Number of pages in a random sample |
| Date: | 2004-04-29 16:56:36 |
| Message-ID: | 0nc290hvvr6tcv45enh93afcgbg8vuk6j9@email.aon.at |
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| Lists: | pgsql-hackers pgsql-performance |
On Mon, 26 Apr 2004 08:08:16 -0700, Sailesh Krishnamurthy
<sailesh(at)cs(dot)berkeley(dot)edu> wrote:
> "A Bi-Level Bernoulli Scheme for Database Sampling"
> Peter Haas, Christian Koenig (SIGMOD 2004)
Does this apply to our problem? AFAIK with Bernoulli sampling you don't
know the sample size in advance.
Anyway, thanks for the hint. Unfortunately I couldn't find the
document. Do you have a link?
Servus
Manfred
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