__PACKAGE__->set_primary_key('employee_id');
__PACKAGE__->position_column('position');
-__PACKAGE__->add_unique_constraint(position_group => [ qw/position group_id/ ]);
+#__PACKAGE__->add_unique_constraint(position_group => [ qw/position group_id/ ]);
__PACKAGE__->mk_classdata('field_name_for', {
employee_id => 'primary key',