text: exports.up = function (knex) {
    return knex.schema.table('game_instances', function (table) {
      table.integer('fk_game_scores_id').unsigned().notNullable();
      table.foreign('fk_game_scores_id').references('id').inTable('game_scores');
    });
  };
  
  exports.down = function (knex) {
    return knex.schema.table('game_instances', function (table) {
      table.dropForeign('fk_game_scores_id');
      table.dropColumn('fk_game_scores_id');
    });
  };
  