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Re: Reg table design and query performances
Posted by: Øystein Grøvlen
Date: April 26, 2016 06:02AM

Hi,

Which version of MySQL are you using?

Your query will be much quicker on 5.6 than on 5.5 since MySQL 5.6 will create indexes on the temporary tables created from the subqueries. MySQL 5.7 should be even faster since temporary tables should not be needed at all.

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

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