Kevin Kempter <kevin(at)kevinkempterllc(dot)com> writes:
> Then I ran this:
> postgres=# select relation from pg_locks where pid = 9902;
> relation
> -----------
> 82097999
> 143763216
> 143763215
> 143763193
> 143763193
> 143763217
> (7 rows)
> However none of these seem to have a corresponding pg_class oid, see
> the below queries:
This most likely means that the vacuum is happening in a different
database than you are looking in. Did you check
pg_stat_activity.datname?
regards, tom lane