数据库中是 unsigned int, 支持40多亿， 但用tp进行查询的时候， where方法会自动把大于2147483647的（有符号int最大值) 转化成 2147483647


print_r($condition);
$Mode->where($condition)->find();
echo $Mode->getlastSql();


结果:

Array
(
[sid] => 2147645095
[type] => icili
)
SELECT * FROM `al_qitadianying` WHERE ( `sid` = 2147483647 ) AND ( `type` = 'icili' ) LIMIT 1


sid 字段是 unsigned in