> On Jan 7, 2020, at 11:56 AM, Alan Hodgson <ahodgson@xxxxxxxxxxxxxxx> wrote: > > On Tue, 2020-01-07 at 11:47 -0900, Israel Brewster wrote: >> One potential issue I just thought of with this approach: disk space. >> Will I be doubling the amount of space used while both tables exist? >> If so, that would prevent this from working - I don’t have that much >> space available at the moment. > > The original update you planned would do that, too. > > You probably need to just do the update in batches and vacuum the table > between batches. > > Really? Why? With the update I am only changing data - I’m not adding any additional data, so the total size should stay the same, right? I’m obviously missing something… :-) --- Israel Brewster Software Engineer Alaska Volcano Observatory Geophysical Institute - UAF 2156 Koyukuk Drive Fairbanks AK 99775-7320 Work: 907-474-5172 cell: 907-328-9145 >