[wp-trac] [WordPress Trac] #64696: Real time collboration effectively disables persistent post caches while anyone edits a post

[WordPress Trac]

#64696: Real time collboration effectively disables persistent post caches while
anyone edits a post
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 Reporter:  peterwilsoncc             |       Owner:  (none)
     Type:  defect (bug)              |      Status:  new
 Priority:  normal                    |   Milestone:  7.0
Component:  Posts, Post Types         |     Version:  trunk
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
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Comment (by ellatrix):

 A dumb question: why can't we allow registering post meta keys that are
 not queryable (through `WP_Query` etc.) and then don't invalidate cache?
 For these keys it would only be possible to retrieve the values directly
 through `get_post_meta`. This doesn't have to be a one-off special-case
 hack but rather a built-in way to do it.

 I'm bit concerned with adding a table this late in the release cycle. RC1
 is Thursday, so this would have to be added before then. Correct me if I'm
 wrong, but we're also setting something in stone now that becomes hard to
 change or undo later.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64696#comment:64>
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