由于这个额外的括号，我得到以下错误

code: 'ER_OPERAND_COLUMNS',
  errno: 1241,
  sqlMessage: 'Operand should contain 1 column(s)',
  sqlState: '21000',
  index: 0,
  sql: 'INSERT INTO orderedproducts (order_id, product_id, quantity) VALUES ((41, 1, 2), (41, 1, 3), (41, 1, 3))'
}

我使用以下代码生成这个查询

let lastId = results.insertId

                    let orderedProductSql = 'INSERT INTO orderedproducts (order_id, product_id, quantity) VALUES (?)'

                    var testData = [
                        {
                            productId: 1,
                            quantity: 2
                        },
                        {
                            productId: 1,
                            quantity: 3
                        },
                        {
                            productId: 1,
                            quantity: 3
                        },
                    ]

                    let values = testData.reduce((o, a) => {
                        let ini = []
                        ini.push(lastId)
                        ini.push(a.productId)
                        ini.push(a.quantity)
                        o.push(ini)
                        return o
                    },[])

                    connection.query(orderedProductSql, [values], (err, results) => {
                        if (err)    {
                            return connection.rollback(_ => {
                                throw err
                            })
                        }

我如何才能删除这些额外的括号或有任何其他方法，我可以使这项工作？