[wp-trac] [WordPress Trac] #57498: Unnecessary writes to cache in `WP_Query`

[WordPress Trac]

#57498: Unnecessary writes to cache in `WP_Query`
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 Reporter:  spacedmonkey  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  6.2
Component:  Query         |    Version:  6.1
 Severity:  normal        |   Keywords:
  Focuses:  performance   |
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 Follow on from [55035] and #57373.

 In `WP_Query`, the class calls the `update_post_caches` function. This
 updates post caches. However, this function does not check to see if the
 post is already in cache. For site using persistent object caches this can
 result in lots of writes to cache that are unnecessary.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57498>
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