Why does not the mysql developer team to do this optimization?
--- 12年4月20日，周五, Reindl Harald 写道：
> 发件人: Reindl Harald
> 主题: Re: Why does the limit use the early row lookup.
> 收件人: mysql@lists.mysql.com
> 日期: 2012年4月20日,周五,下午3:50
>
>
> Am 20.04.2012 04:29, schrieb 张志刚:
> > My point is that th
Hi Rafael,
You can try using correlated subquery instead of outer join. This can be slow
with big tables though:
SELECT * FROM users WHERE accept_email = 1 and email not in (SELECT email FROM
sent_emails WHERE sent_emails
.email = users.email AND messageID NOT LIKE = ‘XX’)
OR OUTER JOIN as
Dear Friends,
I m new on this list, and I m trying to learn more about mysql.
After perform a lot of searchs in the Internet, I have no answer to my
question and would like to ask your help.
I wanna a perform a query that depends of the result from another (query)
table inside the same
