Ticket #20838: wpdb.patch

wp-includes/wp-db.php

@@ -1115 +1115 @@
                         // Return number of rows affected
                         $return_val = $this->rows_affected;
                 } else {
-                        $i = 0;
-                        while ( $i < @mysql_num_fields( $this->result ) ) {
-                                $this->col_info[$i] = @mysql_fetch_field( $this->result );
-                                $i++;
+                        if (WP_DEBUG) {
+                                $i = 0;
+                                while ( $i < @mysql_num_fields( $this->result ) ) {
+                                        $this->col_info[$i] = @mysql_fetch_field( $this->result );
+                                        $i++;
+                                }
                         }
                         $num_rows = 0;
                         while ( $row = @mysql_fetch_object( $this->result ) ) {