如果在分页中用 group分组后再进行paginate会导致分页总数计算不正确如下
->group("cid")
->order("date desc")
->paginate(5,false,['query'=>$param]);
查看了分页数计数sql　
SELECT COUNT(*) AS tp_count FROM `tj_auth_channel_count` WHERE `date` <= 20161215 GROUP BY cid ORDER BY date desc LIMIT 1 [ RunTime:0.001000s ]中会把group 加上再limt 1 这样导致分页数计算出错。少计算了