[wp-trac] [WordPress Trac] #5557: wxr importer: defer comment counts

[WordPress Trac]

#5557: wxr importer: defer comment counts
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 Reporter:  tellyworth   |       Owner:  anonymous
     Type:  enhancement  |      Status:  new      
 Priority:  normal       |   Milestone:  2.5      
Component:  General      |     Version:           
 Severity:  normal       |    Keywords:  has-patch
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 Comment counts are calculated and recalculated every time a comment is
 inserted.  That's inefficient when there are multiple comments per post.

 The enclosed patch implements and uses a wp_defer_comment_counting()
 function.  It's based on wp_defer_term_counting().

 I also removed the comment_exists() check in the importer, since in
 practice it always returns false (the post_exists() check means we only
 attempt to import comments when the parent post is new, and hence has no
 comments).

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Ticket URL: <http://trac.wordpress.org/ticket/5557>
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