diff --git a/wp-admin/includes/schema.php b/wp-admin/includes/schema.php
index dd79640053..dcb0b8ff75 100644
--- a/wp-admin/includes/schema.php
+++ b/wp-admin/includes/schema.php
@@ -139,7 +139,8 @@ CREATE TABLE $wpdb->posts (
   comment_count bigint(20) NOT NULL default '0',
   PRIMARY KEY  (ID),
   KEY post_name (post_name),
-  KEY type_status_date (post_type,post_status,post_date,ID)
+  KEY type_status_date (post_type,post_status,post_date,ID),
+  KEY post_parent (post_parent)
 ) $charset_collate;
 CREATE TABLE $wpdb->users (
   ID bigint(20) unsigned NOT NULL auto_increment,
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a4487daf9f..90ae81b740 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -15,6 +15,6 @@ $wp_version = '2.7-almost-beta';
  *
  * @global int $wp_db_version
  */
-$wp_db_version = 8989;
+$wp_db_version = 9290;
 
 ?>