Peter, is there a way from pgsql to show if an index is unique?  It
would be nice.
	test=# create table x(y int);
	CREATE
	test=# create unique index xx on x(y);
	CREATE
	test=# \d xx
	       Table "xx"
	 Attribute | Type | Info 
	-----------+------+------
	 y         | int4 | 
-- 
  Bruce Momjian                        |  http://www.op.net/~candle
  maillist(at)candle(dot)pha(dot)pa(dot)us            |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026