making a general select function for sql library operations - sql

Question

well i am trying to make a select function which will work like this,
From main function i will call this select function with necessary variables. and the select function will run the query in the database and give me the reselt.
Now for go lang if we want to do a select query for the results we need a struct where we can get the results. Since the function will be called from main func and the variables can not be predicted we cant declare a struct before hand so i am stuck here. can anyone give me a solution?
so basically what i am trying to do is we can simply call the query like
-- select name,phone from users where userid=1 ---
so from the main func we will get the values like column name(name,phone), table name (users) and the condition (userid=1)
we will pass these info to the select func and it will run the query and give us back the results.
no matter what is the query is it should work like it. can anyone give me an sample or idea how to work with this
func select() {
//DB CONNECTION HERE
type User struct {
Name string `json:"name"`
Age string `json:"age"`
Email string `json:"email"`
Phone string `json:"phone"`
Address string `json:"address"`
}
results, err := db.Query("SELECT Name, Age, Email, Phone, Address FROM `users` where personId=12 ")
if err != nil {
panic(err.Error())
}
for results.Next() {
var user User
var email User
var age User
var phone User
var address User
err = results.Scan(&user.Name, &age.Age, &email.Email, &phone.Phone, &address.Address)
if err != nil {
panic(err.Error())
}
fmt.Println(user.Name)
fmt.Println(age.Age)
fmt.Println(email.Email)
fmt.Println(phone.Phone)
fmt.Println(address.Address)
}
Now as zou can see this is the code where we know the query so we made a struct according to it but what about the problem i described above?