Re: Lookup tables

The query to register a visit is:
insert into restaurant_visit
select $user, current_date, restaurant_id, $rating
from restaurant where name = $restaurant_name


It is now completely unclear what it means to change the name of the restaurant for already registered visits.
Is it still the same restaurant with a different name or a different restaurant?

Or let say someone swaps names of two restaurants.
That means a user that goes to the same restaurant every day would register visits to two different restaurants!