alter table workschedules add monday_enabled boolean default false;
alter table workschedules add monday_start_hour int default 0;
alter table workschedules add monday_end_hour int default 0;

alter table workschedules add tuesday_enabled boolean default false;
alter table workschedules add tuesday_start_hour int default 0;
alter table workschedules add tuesday_end_hour int default 0;

alter table workschedules add wednesday_enabled boolean default false;
alter table workschedules add wednesday_start_hour int default 0;
alter table workschedules add wednesday_end_hour int default 0;

alter table workschedules add thursday_enabled boolean default false;
alter table workschedules add thursday_start_hour int default 0;
alter table workschedules add thursday_end_hour int default 0;

alter table workschedules add friday_enabled boolean default false;
alter table workschedules add friday_start_hour int default 0;
alter table workschedules add friday_end_hour int default 0;

alter table workschedules add saturday_enabled boolean default false;
alter table workschedules add saturday_start_hour int default 0;
alter table workschedules add saturday_end_hour int default 0;

alter table workschedules add sunday_enabled boolean default false;
alter table workschedules add sunday_start_hour int default 0;
alter table workschedules add sunday_end_hour int default 0;