Re: A MySQL Question
| From: | ceo at l-i-e dot com | Date: | Mon, 08 Dec 2008 23:23:44 +0000 |
| Subject: | Re: A MySQL Question | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-284330@lists.php.net to get a copy of this message | ||
Presumable, the EXISTS sub-query can be optimized sometimes to just stop processing the sub-query
and kick things back out to the outer query.
IN has to process them all and find them all.