Sequelize方法提供未定义的

const { Sequelize, DataTypes } = require('sequelize');
const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: 'mysql'
});

const User = sequelize.define('User', {
  name: {
    type: DataTypes.STRING,
    allowNull: true
  },
  age: {
    type: DataTypes.INTEGER,
    allowNull: true
  }
});

(async () => {
  await sequelize.sync({ force: true });

  await User.create({ name: 'John', age: 25 });
  await User.create({ name: 'Jane' });

  const result = await User.findAll({
    attributes: [
      'name',
      [Sequelize.fn('COALESCE', Sequelize.col('age'), 0), 'age']
    ]
  });

  console.log(result);
})();