[wp-trac] [WordPress Trac] #42256: Skip SQL_CALC_FOUND_ROWS when using post__in whose count matches posts_per_page

[WordPress Trac]

#42256: Skip SQL_CALC_FOUND_ROWS when using post__in whose count matches
posts_per_page
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 Reporter:  ethitter      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Query         |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 If a `post__in` array is passed to WP_Query whose length matches the
 `posts_per_page` value for the query, `SQL_CALC_FOUND_ROWS` is
 unnecessary.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42256>
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