Ticket #5649: comment_to_ping.diff

comment.php

@@ -624 +624 @@
         }
 
         // Do Trackbacks
-        $trackbacks = $wpdb->get_results("SELECT ID FROM $wpdb->posts WHERE CHAR_LENGTH(TRIM(to_ping)) > 7 AND post_status = 'publish'");
+        $trackbacks = $wpdb->get_results("SELECT ID FROM $wpdb->posts WHERE to_ping <> '' AND post_status = 'publish'");
         if ( is_array($trackbacks) ) {
                 foreach ( $trackbacks as $trackback )
                         do_trackbacks($trackback->ID);