[wp-trac] [WordPress Trac] #18836: ORDER BY RAND() is slow

[WordPress Trac]

#18836: ORDER BY RAND() is slow
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 Reporter:  scribu       |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Performance  |     Version:
 Severity:  minor        |  Resolution:
 Keywords:               |
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Comment (by scribu):

 Here's a method of doing it all in a single query:

 http://explainextended.com/2009/03/01/selecting-random-rows/

 Not sure how feasible it would be for WP.

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Ticket URL: <http://core.trac.wordpress.org/ticket/18836#comment:1>
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