text: exports.up = function(knex) {
      return knex.schema.table('host', function(table) {
          table.string('ftpasswd', 64)
              .nullable()
              .after('alias');
      });
  };
  
  exports.down = function(knex) {
      return knex.schema.table('host', function(table) {
          table.dropColumn('ftpasswd');
      });
  };
  