Table users {
id integer
username varchar
role varchar
created_at timestamp
}
Table posts {
id integer [primary key]
title varchar
body text [note: 'Content of the post']
user_id integer
status post_status
created_at timestamp
}
Enum post_status {
draft
published
private [note: 'visible via URL only']
}
Ref: posts.user_id > users.id // many-to-one