Ron,
Hmmm. 60GB/5400secs= 11MBps. That's ssllooww. So the first problem is evidently our physical layout and/or HD IO layer sucks.
Actually, it's much worse than that, because the sort is only dealing with one column. As I said, monitoring the iostat our top speed was 2.2mb/s.
--Josh ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster