insert into data.simple_tbl (username, contactname, data) values ('randuser'||random()::text, 'randcontact'||random()::text, 'link'); /* insert into data.simple_tbl (username, contactname, data) values ('sameuser', 'samecontact', 'link'); update data.simple_tbl */ insert into data.bulk_tbl (data) values ('newdata'); insert into data.keep_all_tbl (username, data) values ('sameuser', 'newdata'); insert into data.keep_latest_tbl (username, data) values ('sameuser', 'newdata'); insert into data.random_tbl (username, data) values ('sameuser', 'newdata');