[wp-trac] [WordPress Trac] #49028: Provide functionality to suppress $wpdb query filter

WordPress Trac noreply at wordpress.org
Sat Feb 8 13:27:59 UTC 2020

#49028: Provide functionality to suppress $wpdb query filter
 Reporter:  aurovrata          |       Owner:  (none)
     Type:  enhancement        |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Database           |     Version:  trunk
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:

Comment (by aurovrata):

 @johnbillion anyone reviewed this?

 I have built the following hack in order to overcome this shortcoming,

 global $wpdb;
 //I select postmetas that are specific to my plugin only (but some poorly
 coded plugin still filters the query causing spurious results to be
 $query =$wpdb->prepare("SELECT rpwc_pm.meta_id, rpwc_pm.post_id FROM
 {$wpdb->postmeta} as rpwc_pm WHERE rpwc_pm.meta_key ='_rpwc2' AND
 rpwc_pm.meta_value=%d", $term_id);
 $match = "SELECT rpwc_pm.meta_id, rpwc_pm.post_id";
 //so before I execute the query I register a filter with an anonymous fn
 and put it last in the filter queue...
 add_filter('query', function($q) use ($query, $match) {
   if(strpos($q, $match)!==false) $q = $query;
   return $q;

 $ranked_rows = $wpdb->get_results($query);

 this is the only way to ensure I get the right results.

 It would be so much simpler with a `suppress_filter` flag.  Implementing a
 flag is a very simple (few lines of code) fix in `wp-includes/wp-db.php`.
 Can I make this change and submit it for review?

Ticket URL: <https://core.trac.wordpress.org/ticket/49028#comment:4>
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