我正在使用数据库/mysql和mysql驱动程序包来执行命令GRANT USAGE ON *.* TO 'test1'@'localhost' IDENTIFIED BY 'passoword
下面的代码抛出错误
错误1064（42000）：SQL语法中有错误;检查与您的MariaDB服务器版本对应的手册，以获得正确的语法来使用near '？@？识别人？’在第1行

package main

import (
    "database/sql"
    "fmt"
    "log"
    "github.com/go-sql-driver/mysql"
)

var db *sql.DB

func main() {
    // Capture connection properties.
    cfg := mysql.Config{
        User:   "root",
        Passwd: "example",
        Net:    "tcp",
        Addr:   "127.0.0.1:3306",
        DBName: "test",
    AllowNativePasswords: true,
    }
    // Get a database handle.
    var err error
    db, err = sql.Open("mysql", cfg.FormatDSN())
    if err != nil {
        log.Fatal(err)
    }

    pingErr := db.Ping()
    if pingErr != nil {
        log.Fatal(pingErr)
    }
    fmt.Println("Connected!")

    _, err = db.Exec("GRANT USAGE ON *.* TO ?@? IDENTIFIED BY ?","test1", "%", "test1")

    if err != nil {
        fmt.Println(err)
        }

    
}

我已经尝试
db.Exec("GRANT USAGE ON *.* TO '?'@'?' IDENTIFIED BY '?'","test1", "%", "test1")
结果sql: expected 0 arguments, got 3