design.md

• user table

field	datatype	option
id	int	PK, auto inc, unique, not null
email	varchar(100)	unique, not null
name	varchar(10)	not null
password	varchar(20)	not null

• article table

field	datatype	option
id	int	PK, auto inc, unique, not null
author_id	int	FK, not null
title	varchar(50)	not null
content	varchar(1000)	not null
comments	int []
likes	int []

• comment table

field	datatype	option
id	int	PK, auto inc, unique, not null
author_id	int	FK, not null
content	varchar(100)	not null
article_id	int	FK, not null

• like table

field	datatype	option
id	int	PK, auto inc, unique, not null
user_id	int	FK, not null
article_id	int	FK, not null