为什么用ThinkPHP3.2.3执行原生的sql语句得到的数据结果，跟直接去phpMyadmin执行同样的sql语句得到的结果不同；代码：
$Information=M("Information"); //实例化information对象（对应金币信息表）
$InformationData=$Information->query("SELECT *
FROM `coin_information` , `coin_record`
WHERE coin_information.opid = 'oXOWrwtvdXOTEk8_QnxxC23rQxvY'
AND coin_record.opid = 'oXOWrwtvdXOTEk8_QnxxC23rQxvY'
AND coin_information.date
BETWEEN '2015-9-28'
AND '2015-10-4'
ORDER BY coin_information.date ASC");