+Or on Pg versions that don't support DROP CONSTRAINT and ADD PRIMARY KEY (tested on 7.1 and 7.2 so far):
+DROP INDEX h_part_pkg_temp_pkey;
+CREATE UNIQUE INDEX h_part_pkg_pkey ON h_part_pkg (historynum);
+probably this one?: select setval('h_part_pkg_temp_historynum_seq', ( select max(historynum) from h_part_pkg) );
+probably not this one?: select setval('h_part_pkg_historynum_seq', ( select max(historynum) from h_part_pkg) );
+
+CREATE TABLE cust_pay_refund (
+ payrefundnum serial NOT NULL,
+ paynum int NOT NULL,
+ refundnum int NOT NULL,
+ _date int NOT NULL,
+ amount decimal(10,2) NOT NULL,
+ PRIMARY KEY (payrefundnum)
+);
+CREATE INDEX cust_pay_refund1 ON cust_pay_refund(paynum);
+CREATE INDEX cust_pay_refund2 ON cust_pay_refund(refundnum);