Schema

users

column name	data type	details
id	integer	not null, primary key
username	string	not null, indexed, unique
email	string	not null, indexed, unique
password_digest	string	not null
session_token	string	not null, indexed, unique
created_at	datetime	not null
updated_at	datetime	not null

• index on username, unique: true
• index on email, unique: true
• index on session_token, unique: true

products

column name	data type	details
id	integer	not null, primary key
title	string	not null
description	text	not null,
price	integer	not null
user_id	integer	not null, indexed foreign key
order_id	integer	indexed foreign key
created_at	datetime	not null
updated_at	datetime	not null

• user_id references users
• index on user_id
• order_id references orders
• index on order_id

reviews

column name	data type	details
id	integer	not null, primary key
title	string	not null
body	text	not null
rating	integer	not null
product_id	integer	not null, indexed foreign key
user_id	integer	not null, indexed, foreign key
created_at	datetime	not null
updated_at	datetime	not null

• user_id references users
• index on user_id
• product_id references product_listings
• index on product_id

orders

column name	data type	details
id	integer	not null, primary key
total	integer	not null
user_id	integer	not null, indexed, foreign key
product_id	integer	not null, indexed foreign key
created_at	datetime	not null
updated_at	datetime	not null

• user_id references users
• index on user_id
• product_id references product_listings
• index on product_id