On Wed, 2020-12-16 at 07:25 +0000, Uwe.deReuter@xxxxxxxxxxxxx wrote: > We want to lookup the table name for entries we see in pg_stat_progress_vacuum. > When we do this based on relid from pg_stat_progress_vacuum we don’t find an > entry in the pg_class table (no match where pg_stat_progress_vacuum.relid=pg_class.oid). > Should that happen at all and where can I do the lookup if not in pg_class ? The table is probably in a database different from the one you are connected to. Look at the "datname" column. Every database has its own catalog tables. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com