for the sake of reference:
// $query->result_object() === $query->result()
// returns:
Array ( [0] => stdClass Object ( [col_A] => val_1A , [col_B] => val_1B , ... )
[0] => stdClass Object ( [col_A] => val_2A , [col_B] => val_2B , ... )
...
)
// $query->result_array() !== $query->result()
// returns:
Array ( [0] => Array ( [col_A] => val_1A , [col_B] => val_1B , ... )
[1] => Array ( [col_A] => val_2A , [col_B] => val_2B , ... )
...
)