rows, _ := db.Query("SELECT ...") // Note: Ignoring errors for brevity
cols, _ := rows.Columns()
 
for rows.Next() {
    // Create a slice of interface{}'s to represent each column,
    // and a second slice to contain pointers to each item in the columns slice.
    columns := make([]interface{}, len(cols))
    columnPointers := make([]interface{}, len(cols))
    for i, _ := range columns {
        columnPointers[i] = &columns[i]
    }
 
    // Scan the result into the column pointers...
    if err := rows.Scan(columnPointers...); err != nil {
        return err
    }
 
    // Create our map, and retrieve the value for each column from the pointers slice,
    // storing it in the map with the name of the column as the key.
    m := make(map[string]interface{})
    for i, colName := range cols {
        val := columnPointers[i].(*interface{})
        m[colName] = *val
    }
 
    // Outputs: map[columnName:value columnName2:value2 columnName3:value3 ...] 
    fmt.Print(m)
}