On Tue, Dec 10, 2013 at 7:49 PM, Peter Geoghegan <pg@heroku.com> wrote:
>> Back in 2005/6, I advocated a block sampling method, as described by
>> Chaudri et al (ref?)
>
> I don't think that anyone believes that not doing block sampling is
> tenable, fwiw. Clearly some type of block sampling would be preferable
> for most or all purposes.
We do block sampling now. But then we select rows from those blocks uniformly.
Incidentally, if you mean Surajit Chaudhuri, he's a Microsoft Research
lead so I would be nervous about anything he's published being
patented by Microsoft.
--
greg
