alter table queue add column department_only varchar(3);
alter table queue alter department_only set default 'no';
update queue set department_only='no' where department_only is null;
alter table queue alter department_only set not null;

alter table queue add column department integer;
alter table queue alter department set default '1';
update queue set department='1' where department is null;
alter table queue alter department set not null;
