On Mon, Mar 13, 2006 at 09:19:32 -0800, "Craig A. James" <cjames@xxxxxxxxxxxxxxxx> wrote: > Alvaro Herrera wrote: > >>If I only insert data into a table, never update or delete, then I should > >>never have to vacuum it. Is that correct? > > > >You still need to vacuum eventually, to avoid transaction Id wraparound > >issues. But not as often. > > Thanks. Any suggestions for what "not as often" means? For example, if my > database will never contain more than 10 million rows, is that a problem? > 100 million rows? When does transaction ID wraparound become a problem? I believe it is at billion (10^9).