natural key vs surrogate key an innodb foreign key

Question

A question:

I have 2 tables:

Product
id INT
name VARCHAR(64)
something TEXT
else INT
entirely BOOL

and

Ingredient
i         


        

Answer 1

For this case I'd prefere surrogate keys because

1. the name of a product or an ingredient may change, especially if your content is user generated (e.g. typos or there are several possible names for an item)
2. your natural keys will be much longer than and therefore be less efficient