[wp-trac] [WordPress Trac] #12891: Advanced multi-taxonomy WP_Query()s

[WordPress Trac]

#12891: Advanced multi-taxonomy WP_Query()s
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 Reporter:  markjaquith     |       Owner:  markjaquith    
     Type:  task (blessed)  |      Status:  assigned       
 Priority:  normal          |   Milestone:  3.1            
Component:  Query           |     Version:  3.0.1          
 Severity:  normal          |    Keywords:  ongoing-project
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Comment(by scribu):

 [http://core.trac.wordpress.org/attachment/ticket/12891/scale.12891.diff
 scale.12891.diff]:

 Queries for existing term ids first.

 This avoids the scaling problem when doing something like
 {{{cat=-123456}}}, which will have no effect (and therefore no performance
 penalty) if that category doesn't exist.

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Ticket URL: <http://core.trac.wordpress.org/ticket/12891#comment:105>
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