text: 
  exports.seed = function(knex, Promise) {
    var tableName = 'orders';
    
    return Promise.join(
      // Deletes ALL existing entries
      knex(tableName).del(), 
  
      // Inserts seed entries
      knex(tableName).insert({id: 1, customerId: 3}),
      knex(tableName).insert({id: 2, customerId: 1}),
      knex(tableName).insert({id: 3, customerId: 1})
    );
  };
  