On Tue, Dec 10, 2013 at 4:48 PM, Peter Geoghegan <p...@heroku.com> wrote: > Why would I even mention that to a statistician? We want guidance. But > yes, I bet I could give a statistician an explanation of statistics > target that they'd understand without too much trouble.
Actually, I think that if we told a statistician about the statistics target, his or her response would be: why would you presume to know ahead of time what statistics target is going to be effective? I suspect that the basic problem is that it isn't adaptive. I think that if we could somehow characterize the quality of our sample as we took it, and then cease sampling when we reached a certain degree of confidence in its quality, that would be helpful. It might not even matter that the sample was clustered from various blocks. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
