SELECT上没有从数据库返回的所有数据

Question

有人可以向我解释为什么下面的查询没有返回所有匹配的记录

creator_id = 10895

然后是与

链接的所有记录 组表中的

staff_id = 10895？

它只返回匹配staff_id = 10895

的记录

SELECT 
    direct_message.*, 
    IFNULL(direct_message_group.staff_id, 0) as staff_id 
FROM `direct_message` 
INNER JOIN direct_message_group 
    ON direct_message_group.chat_id = direct_message.id 
INNER JOIN direct_message_thread 
    ON direct_message_thread.chat_id = direct_message.id 
WHERE 
( 
    direct_message.recipient_id = '10895' OR 
    direct_message.creator_id = '10895' 
OR (
    direct_message_group.staff_id = '10895' 
    AND direct_message_group.active = '0')
) 
AND direct_message.school_id = '1' 
AND direct_message_thread.school_id = direct_message.school_id 
GROUP BY direct_message.id 
ORDER BY direct_message_thread.inserted DESC 
LIMIT 0, 25

表格图片