I wrote: > Perhaps it is worth adding a defense to autovac to not believe last > autovac times that are in the future, since the system clock is not > under our control and could go backwards. Other than that I don't > think there's any bug here. Oh, the other thing that comes to mind is that it's a bad move not to have exposed last_autovac_time anywhere in the pgstat views. Obviously we cannot back-patch that, but I think it should be fixed going forward. This whole thing might've been much less of a mystery if that state had been visible. regards, tom lane
