Ticket #15018: wp-includes-classes-filter.patch

wp-includes/classes.php

@@ -583 +583 @@
         function get_meta_sql( $meta_query, $primary_table, $primary_id_column, $meta_table, $meta_id_column ) {
                 global $wpdb;
 
+                $check = apply_filters( 'get_meta_sql', null, $meta_query, $primary_table, $primary_id_column, $meta_table, $meta_id_column );
+                if ( null !== $check )
+                        return $check;
+
                 $clauses = array();
 
                 $join = '';