Andreas Schmitz <a(dot)schmitz(at)cityweb(dot)de> writes:
> I did a vacuum full and analyze but this pg_temp namespaces are still there.
> Any ideas about that phenomena ?
They're supposed to be there; we recycle the pg_namespace entry across
successive backend sessions. I see no point in deleting it only to have
to make it again in a later session.
regards, tom lane