1 -- add a 'displayed' sales person.
4 alter table cohead add column cohead_display_salesrep_id INTEGER;
6 ALTER TABLE cohead add column cohead_pretax_discount numeric(16,4) NOT NULL DEFAULT 0;
8 ALTER TABLE cohead add column cohead_posttax_discount numeric(16,4) NOT NULL DEFAULT 0;
10 ALTER TABLE cohead ADD CONSTRAINT cohead_display_salesrep_fkey FOREIGN KEY (cohead_display_salesrep_id)
11 REFERENCES salesrep(salesrep_id) MATCH SIMPLE
12 ON UPDATE CASCADE ON DELETE NO ACTION;