title: Relying on Rails array of integer attribute
body: <p>Suppose I have a Job model that has an attribute order_of_assignment which is an array of integers. It stores the order_of_assignment the Accounts have performed, e.g. [1, 2, 3] means Account id 1 assigned the job to Account id 2, Account id 2 assigned the job to Account id 3, and so on. Is it reliable to rely on the update order of this attribute? because I heard that relying on order of DB records/tree is not good. Thanks</p>