golang如何把struct绑定到原生SQL查询

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package main

type Power struct {
    Ts      time.Time
	Current float32
	Voltage int
	Phase   float32
}

func main() {
    var taosUri = "root:taosdata@tcp(localhost:6030)/power"
	taos, err := sql.Open("taosSql", taosUri)
	if err != nil {
		fmt.Println("failed to connect TDengine, err:", err)
		return
	}
	sql := "select * from d1001"
	rows, err := taos.Query(sql)
	defer rows.Close()
	for rows.Next() {
		power := Power{}
		s := reflect.ValueOf(&power).Elem()
		numCols := s.NumField()
		columns := make([]interface{}, numCols)
		for i := 0; i < numCols; i++ {
			field := s.Field(i)
			columns[i] = field.Addr().Interface()
		}
		err := rows.Scan(columns...)
		if err != nil {
			fmt.Println(err)
		}
		log.Printf("采集时间：%v, 当前值：%v, 电压：%d", power.Ts, power.Current, power.Voltage)
	}
}

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Author: iPenge