diff --git a/wp-admin/includes/schema.php b/wp-admin/includes/schema.php
index 664a217e79..bb1c33d861 100644
--- a/wp-admin/includes/schema.php
+++ b/wp-admin/includes/schema.php
@@ -68,7 +68,7 @@ CREATE TABLE $wpdb->comments (
   comment_approved varchar(20) NOT NULL default '1',
   comment_agent varchar(255) NOT NULL default '',
   comment_type varchar(20) NOT NULL default '',
-  comment_parent bigint(20) NOT NULL default '0',
+  comment_parent bigint(20) unsigned NOT NULL default '0',
   user_id bigint(20) unsigned NOT NULL default '0',
   PRIMARY KEY  (comment_ID),
   KEY comment_approved (comment_approved),
@@ -85,7 +85,7 @@ CREATE TABLE $wpdb->links (
   link_category bigint(20) NOT NULL default '0',
   link_description varchar(255) NOT NULL default '',
   link_visible varchar(20) NOT NULL default 'Y',
-  link_owner bigint(20) NOT NULL default '1',
+  link_owner bigint(20) unsigned NOT NULL default '1',
   link_rating int(11) NOT NULL default '0',
   link_updated datetime NOT NULL default '0000-00-00 00:00:00',
   link_rel varchar(255) NOT NULL default '',
diff --git a/wp-includes/post.php b/wp-includes/post.php
index 8cc0d7b341..7d5a1c6b7a 100644
--- a/wp-includes/post.php
+++ b/wp-includes/post.php
@@ -1159,8 +1159,6 @@ function wp_delete_post($postid = 0) {
 	foreach ( $revision_ids as $revision_id )
 		wp_delete_post_revision( $revision_id );
 
-	do_action('deleted_post', $postid);
-
 	// Point all attachments to this post up one level
 	$wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) );
 
@@ -1181,6 +1179,8 @@ function wp_delete_post($postid = 0) {
 		clean_post_cache($postid);
 	}
 
+	do_action('deleted_post', $postid);
+
 	return $post;
 }