I found out during a pgdump/restore that not all tables were being
backed up. After some investigation I suspect that this was because the
tables in question were not owned by anybody! I don't know how this
happened perhaps a user that owned those tabled was dropped. Another odd
thing was that some of the tables had read permission for a user named
99. There was no such user created that I know of (of course one of the
other admins may have fiddled with it I don't know, nobody has taken
credit for it).
It seems to me the deletion of a user does not cascade to permissions
and ownerships. I suggest that either dropping user ought to be
disalloved at this point or the tables revert to being owned by the
postgres user.
I am looking forward to being able to change owners in a more
straightforward matter.
Thanks for listening.