Re: Re: the opposite of a join?
| From: | Chris | Date: | Thu, 04 Oct 2007 01:23:49 +0000 |
| Subject: | Re: Re: the opposite of a join? | ||
| References: | 1 2 3 4 5 | Groups: | php.db php.general |
| Request: | Send a blank email to php-db+get-44128@lists.php.net to get a copy of this message | ||
Robert Cummings wrote:
On Wed, 2007-10-03 at 14:49 -0700, Jim Lucas wrote:If indexed properly of course ;) -- Postgresql & php tutorials http://www.designmagick.com/This is only from my own personal testing. Mind you that I have only been using PostgreSQL for a year or so. But one problem that I have always ran into with MySQL is that when JOIN'ing tables that have large data sets is a PITA.Were you doing left joins when you experienced those problems? Left joins are usually very fast.