如何使用sqlx检查行是否存在？

I want this fuction to return true of a row containing the email is found in the database. Here is the code

func UserExists(email string) bool {
    var err error
    user := model.User{}
    err = shared.Dbmap.Get(&user, "SELECT * FROM user WHERE email=? LIMIT 1", email)
    if err == nil {
        fmt.Println("User is already in DB")
        return true
    } else {
        fmt.Println("No rows returned")
        return false
    }
}

However, it always returns false even if there is such email in the db, so clearly the query is not up to the job. How can I fix this?