FQL Stream返回的结果少于FQL状态

Question

我正在使用两个查询测试结果，这些查询尝试根据邮件中的文本查找我的朋友帖子。第一个查询：

select uid, status_id, message, time, source FROM status where uid in (SELECT uid2 FROM friend WHERE uid1 = me()) AND (strpos(lower(message),"father") >=0 );

返回我想要的结果，工作正常。然而，第二个查询因为它使用流而更加开放，所以没有任何回复。

SELECT type, created_time, post_id, comments, actor_id, target_id, message FROM stream WHERE filter_key IN (SELECT filter_key FROM stream_filter WHERE uid = me()) AND actor_id IN (SELECT uid2 FROM friend WHERE uid1 = me()) AND (strpos(lower(message),"father") >=0 );

为什么流只返回状态呢？我错过了什么吗？