使用3个表序列化nodejs内连接？

const mysql = require('mysql');

// 创建数据库连接
const connection = mysql.createConnection({
  host: 'localhost',
  user: 'username',
  password: 'password',
  database: 'database_name'
});

// 连接数据库
connection.connect();

// 编写SQL查询语句
const query = `
  SELECT *
  FROM table1
  INNER JOIN table2 ON table1.id = table2.table1_id
  INNER JOIN table3 ON table2.id = table3.table2_id
`;

// 执行查询
connection.query(query, (error, results) => {
  if (error) throw error;

  // 处理查询结果
  const serializedData = results.map(row => ({
    column1: row.column1,
    column2: row.column2,
    column3: row.column3
  }));

  // 序列化结果
  const serializedResult = JSON.stringify(serializedData);

  console.log(serializedResult);
});

// 关闭数据库连接
connection.end();