> > Another idea that might conceivably be useful to you on 9.6 is to
reorganize the bulk deletions so that most of them aren't at the endpoint > of the live id range. If you made it so that the extremal values are > deleted last, you'd never hit this behavior. > > regards, tom lane > Hm, I am not sure I understood your suggestion. We'd still need to find a range of ids to delete, and the order by asc has the nice property that it moves old records first, which helps tables with a lot of activity on recently created tuples (and I suppose an ordering in the other direction would suffer from the same problem).