limits on mySQL

dmsss

是提交的support，我还选了部门。我是两天无回复才提交的第二个。

dmsss

刚打了电话给HM， 客服也不知道什么原因，只让我再等ticket回复， 说近HM密码升级，技术人员很忙。我崩溃，是不是数据库出问题了？现在我的网站用PP或paypalIPN支付后，后台都没有定单记录，数据库里也没有记录，抓狂！

一路同行

重新装一下程序看看

dmsss

HM 客服终于回信了：

Here are the variables on the server:

mysql> show variables like 'SQL_BIG_SELECTS';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| sql_big_selects | OFF |
+-----------------+-------+

mysql> show variables like 'SQL_MAX_JOIN_SIZE';
+-------------------+-----------+
| Variable_name | Value |
+-------------------+-----------+
| sql_max_join_size | 100000000 |
+-------------------+-----------+

If the join_size is not big enough, that means you are selecting a LOT of stuff, probably plenty of left joins.  Please let us know how else we may assist you.

可是我看不懂什么意思……一路同行帮我看看，多谢多谢！