Greg Stark <st...@mit.edu> writes: > On Tue, Mar 13, 2012 at 1:38 AM, Daniel Farina <dan...@heroku.com> wrote: >> You probably are going to ask: "why not just run ANALYZE and be done >> with it?"
> Uhm yes. If analyze takes a long time then something is broken. It's > only reading a sample which should be pretty much a fixed number of > pages per table. It shouldn't take much longer on your large database > than on your smaller databases. The data collection work does scale according to the statistics target, which is something that's crept up quite a lot since the code was originally written. I wonder whether it'd be worth recommending that people do an initial ANALYZE with a low stats target, just to get some stats in place, and then go back to analyze at whatever their normal setting is. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers