Laurenz Albe <laurenz.albe@xxxxxxxxxxx> writes: > On Thu, 2021-09-02 at 08:50 +0300, Alexander Kass wrote: >> We have a small number of users that do not have xmin in pg_database >> (we've asked them to try `select xmin from pg_database` and got >> `column xmin does not exist`). > All PostgreSQL tables have "xmin", and all catalog tables do as well. Indeed. This seems to be evidence of corruption in the pg_attribute catalog. If you're really lucky, reindexing pg_attribute might fix it, though I wonder what other problems there are. (It's odd though that identical corruption would happen to different installations.) regards, tom lane
