text: exports.up = function (knex) {
    return knex.schema.table('users', function (table) {
      table.renameColumn('name', 'user_name');
    });
  };
  
  exports.down = function (knex) {
    return knex.schema.table('users', function (table) {
      table.renameColumn('user_name', 'name');
    });
  };
  