我不知道，如何通过 FQL 获取我的所有线程和每个线程的最后一条消息。我尝试：
fql?q={"threads":"SELECT subject, recipients, updated_time, unseen, unread, thread_id FROM thread WHERE folder_id = 0",
"users": "SELECT uid, name FROM user WHERE uid IN (SELECT recipients FROM #threads)",
"first_msg": "SELECT message_id, thread_id, body, created_time FROM message WHERE thread_id IN (SELECT thread_id FROM #threads) ORDER BY created_time DESC LIMIT 1"}
但是当然我只收到列表中一个（第一个）线程的最后一条消息。