[wp-trac] [WordPress Trac] #20134: Performance Problems with Complex Meta Queries

[WordPress Trac]

#20134: Performance Problems with Complex Meta Queries
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 Reporter:  dominicp     |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Query        |    Version:  3.3.1
 Severity:  normal       |   Keywords:  dev-feedback
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 I have noticed that when I have several criterion on a WP_Query meta query
 it can start to drastically impact performance. I don't know if this is
 just an unavoidable consequence of using the key/value data structure that
 WordPress does, but I wanted to bring it to the dev's attention now as it
 seems like 3.4 is going to involve some serious work on the Query
 component.

 I have outlined a specific example of the problem in some detail here:
 [http://stackoverflow.com/q/8893160/931860], and I can definitely provide
 more details if someone feels they would be relevant.

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Ticket URL: <http://core.trac.wordpress.org/ticket/20134>
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