discuz论坛获得某一板块精华帖
?
select a.tid,a.subject,a.dateline from cdb_forum_posts a ,cdb_forum_threads b where a.tid=b.tid and b.digest=1 and a.first =1 and a.fid=15
?tid 帖子本身的id
?fid 帖子对应的论坛版块的id
