"David G. Johnston" <david.g.johnston@xxxxxxxxx> writes: > On Mon, Apr 2, 2018 at 8:30 AM, Artem Tomyuk <admin@xxxxxxxxxxxxxx> wrote: >> i've noticed that during business hours autovacuum vacuum is not being >> triggered on pg_attribute, >> but during night time it triggered every two hours, both vacuum and >> analyze, maybe you know why? > Sounds like someone added a "cron job" somewhere. ... and, perhaps, explicitly disabled autovacuum on that table? regards, tom lane