Ticket #7814: 7814.diff

inc/search.php

@@ -127 +127 @@
                 global $wpdb;
 
                 if ( self::is_search( $query ) ) {
-                        $insert_at = strpos( $where, 'OR (' . $wpdb->prefix . 'posts.post_content LIKE ' );
+                        $insert_at = strpos( $where, 'OR (' . $wpdb->prefix . 'posts.post_content REGEXP ' );
                         if ( $insert_at ) {
                                 $or_tag = $wpdb->prepare( "OR
                                         (