On Wed, Feb 16, 2022 at 6:56 PM Robert Haas <robertmh...@gmail.com> wrote: > I think that's not really what is happening, at least not in the cases > that typically are brought to my attention. In those cases, the > typical pattern is:
> 5. None of the tables in the database have been vacuumed in a long > time. There are a million XIDs left. How many of the tables in the > database are going to be truncate when they are vacuumed and burn one > of the remaining XIDs? Anybody's guess, could be all or none. I have to admit that this sounds way more plausible than my speculative scenario. I haven't been involved in any kind of support case with a customer in a *long* time, though (not by choice, mind you). > 6. Sometimes the user decides to run VACUUM FULL instead of plain > VACUUM because it sounds better. It's a pity that the name suggests otherwise. If only we'd named it something that suggests "option of last resort". Oh well. -- Peter Geoghegan
