我有2張桌子+----+------------+------------+| id | first_name | date       |+----+------------+------------+| 1  | Bob        | 01/01/2019 |+----+------------+------------+| 2  | June       | 01/05/2019 |+----+------------+------------+和+----+--------+---------+------------+| id | userID | comment | date       |+----+--------+---------+------------+| 1  | 1      | Hello   | 02/01/2019 |+----+--------+---------+------------+| 2  | 1      | Again   | 02/02/2019 |+----+--------+---------+------------+| 3  | 2      | Howdy   | 02/03/2019 |+----+--------+---------+------------+我想獲得所有名字為 Bob 的用戶的結果，并將最新的評論附加到該結果。我可以$users = SELECT * FROM Users WHERE id = 1然后foreach($users as $user){    $comment = Comment::where("userID", $user->id)->first();    if($comment != null){        $user->comments = $comment->$comment;    }}但是，如果 $users 中有很多結果，它會很慢