We have some app that has generated more than 100000 tombstones in the role_permissions table. WE have checked the gc_grace_seconds of that table, and we were so suprised to see that is 90 days by default. we tried to reduce that gc_grace_seconds to a low number in order to reomve the tombstones, but it seems that is impossible to alter that .. (our superuser has all kind of actions granted).
How could we remove the tombstones on this table? is it possible to reduce the gc_grace_seconds?