[wp-trac] [WordPress Trac] #33885: meta_form performs a potentially expensive query

[WordPress Trac]

#33885: meta_form performs a potentially expensive query
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 Reporter:  jorbin          |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Administration  |    Version:
 Severity:  normal          |   Keywords:
  Focuses:  performance     |
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 This is a follow-up to #24498 and the research that @tollmanz did on the
 query used in meta_form.  To summerize:

 The query in meta_form can be incredibly slow on sites with a lot of post
 meta.

 The solution to me seems to be to cache the query and update the cache of
 meta to use everytime a new piece of post_meta is saved. This will prevent
 the query from needing to be run on sites with a persistant cache.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33885>
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