Zeki Mokhtarzada <zeki(at)freewebz(dot)com> writes:
> The system is running on a Dell PowerEdge 2650 running RedHat 8. We had a
> kernel halt about two weeks ago that was caused by one of our disk mirrors
> failing. It could be that these problems were caused at that point in
> time and are just being noticed now.
Not sure. xmin=2 (FrozenXid) implies that those rows have been like
that for a good long time (~ 1 billion transactions).
> But you never stated how to delete the duplicate rows. Any suggestions?
You can select 'em by ctid, viz WHERE ctid = '(53101,30)'
regards, tom lane