[wp-trac] [WordPress Trac] #16706: Queries using "category__and" are slow on large databases

[WordPress Trac]

#16706: Queries using "category__and" are slow on large databases
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 Reporter:  tigertech            |       Owner:  scribu
     Type:  defect (bug)         |      Status:  accepted
 Priority:  normal               |   Milestone:  Future Release
Component:  Performance          |     Version:  3.1
 Severity:  normal               |  Resolution:
 Keywords:  has-patch 3.3-early  |
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Comment (by milez):

 I am having this exact same problem on a busy 150k posts WP 3.1 install.
 Very happy to test this and post results but could someone explain to me
 which patches I require please?

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Ticket URL: <http://core.trac.wordpress.org/ticket/16706#comment:41>
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