On Fri, Apr 15, 2022 at 10:05 AM Andres Freund <and...@anarazel.de> wrote: > I don't think they're actually that comparable. One shows how much > relfrozenxid advanced, to a large degree influenced by the time between > aggressive (or "unintentionally aggressive") vacuums.
It matters more in the extreme cases. The most recent possible value for our new relfrozenxid is OldestXmin/removable cutoff. So when something holds back OldestXmin, it also holds back new relfrozenxid values. > The other shows > the age of OldestXmin at the end of the vacuum. Which is influenced by > what's currently running. As well as the age of OldestXmin at the start of VACUUM. -- Peter Geoghegan
