nodejs mysql bulk INSERT på DUPLICATE KEY UPDATE

Jeg ville prøve en række objekter

[
 {name:'Hy Dag3', points:'55040464', rank:'master', hotStreak:114,...},
 {name:'Hkj', points:'554064', rank:'novice', hotStreak:14,...}
]

og derefter

this.conn.query("INSERT summoners SET ? " +
" ON DUPLICATE KEY UPDATE name = VALUES(name), rank = VALUES(rank)...

Fordi ifølge doc:

var post  = {id: 1, title: 'Hello MySQL'};
var query = connection.query('INSERT INTO posts SET ?', post, function (error, results, fields) {
  if (error) throw error;
  // Neat!
});
console.log(query.sql); // INSERT INTO posts SET `id` = 1, `title` = 'Hello MySQL'