(*sql.Rows).Scan() dynamically by column name.

scan.go

// the target column name
name := "latitude"

// latitude value will be scanned into here
var latitude float64

// grab the column names
columns, _ := rows.Columns()

// columns will be scanned into this slice
dest := make([]interface{}, len(columns))

for i := 0; i < len(columns); i++ {
	if columns[i] == name {
		dest[i] = &latitude
	} else {
		dest[i] = new(string) // everything else gets scanned into a string
	}
}

_ = rows.Scan(dest...)

fmt.Println("latitude:", latitude)