Sql sequelize原始查询列不'；不存在

我试图使用原始查询，但我得到了错误。 为什么它认为test是一个列名

“测试”列不存在

module.exports = {

  getUser(req, res){
    var sql = 'SELECT * FROM Users As Users WHERE Users.username = "test"'
    //Get the username of the user
    //Search the Users_matches databse for their username and join it with the
    db.sequelize.query(sql, { type: sequelize.QueryTypes.SELECT})
    .then(result => {
      return res.status(201).send({
        result
      });
    })
}

---

您可以跳过值“test”。这很有效

const User = sequelize.define('User', {
  username: Sequelize.STRING,
});

sequelize.sync({ force: true })
  .then(() => {
    var sql = 'SELECT * FROM "Users" as "Users" WHERE username = \'test\'';
    sequelize.query(sql, { type: sequelize.QueryTypes.SELECT })
      .then(result => {
        console.log(result);
      });
  });

---

标准SQL使用单引号表示字符串文字，双引号表示标识符（如表名和列名）。