[wp-trac] [WordPress Trac] #62401: WP_Query add extra JOINs after calling get_posts() with category__in in query arguments

[WordPress Trac]

#62401: WP_Query add extra JOINs after calling get_posts() with category__in in
query arguments
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 Reporter:  elancerteam   |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Query         |     Version:  6.6.2
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by shahabdev):

 The extra LEFT JOIN clauses (tt1 and tt2) indicate that WordPress is
 applying additional filtering logic. This usually happens when multiple
 categories are involved, and WP_Query attempts to enforce a strict match.
 Instead of simply retrieving posts belonging to any of the specified
 categories, it sometimes assumes that posts must belong to all categories
 in the array.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62401#comment:3>
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