Index: wordpress-dev/wp-includes/formatting.php
===================================================================
--- wordpress-dev/wp-includes/formatting.php	(revision 11741)
+++ wordpress-dev/wp-includes/formatting.php	(working copy)
@@ -692,7 +692,7 @@
 		if (function_exists('mb_strtolower')) {
 			$title = mb_strtolower($title, 'UTF-8');
 		}
-		$title = utf8_uri_encode($title, 200);
+		$title = utf8_uri_encode($title, 400);
 	}
 
 	$title = strtolower($title);
Index: wordpress-dev/wp-admin/includes/schema.php
===================================================================
--- wordpress-dev/wp-admin/includes/schema.php	(revision 11741)
+++ wordpress-dev/wp-admin/includes/schema.php	(working copy)
@@ -123,7 +123,7 @@
   comment_status varchar(20) NOT NULL default 'open',
   ping_status varchar(20) NOT NULL default 'open',
   post_password varchar(20) NOT NULL default '',
-  post_name varchar(200) NOT NULL default '',
+  post_name varchar(400) NOT NULL default '',
   to_ping text NOT NULL,
   pinged text NOT NULL,
   post_modified datetime NOT NULL default '0000-00-00 00:00:00',