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Re: JOIN PERFORMANCE
Posted by: Mike Hillyer
Date: October 28, 2004 08:47AM

I think the more important question is whether you need the LEFT JOIN. Performance is secondary when the queries return different results. A LEFT JOIN will produce some NULL rows. Is this what you want? If so then use the LEFT JOIN.

Mike Hillyer, Technical Writer
MySQL AB, www.mysql.com
Office: +1 403-380-6535

Blog: http://www.openwin.org/mike

"The Open Source movement has become a major force across the software industry, and MySQL is the world's most popular open source database."
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