text: ALTER TABLE pizzas DROP CONSTRAINT IF EXISTS pizzas_cheesiness_check;
  
  ALTER TABLE pizzas DROP CONSTRAINT IF EXISTS pizzas_flavor_check;
  
  ALTER TABLE pizzas DROP CONSTRAINT IF EXISTS pizzas_sauciness_check;
  
  ALTER TABLE pizzas DROP CONSTRAINT IF EXISTS pizzas_saltiness_check;
  
  ALTER TABLE pizzas DROP CONSTRAINT IF EXISTS pizzas_charness_check;