forum split delivery flag

database.sql

@@ -226,6 +226,7 @@ CREATE TABLE IF NOT EXISTS `item` (
   `unseen` tinyint(1) NOT NULL DEFAULT '1',
   `deleted` tinyint(1) NOT NULL DEFAULT '0',
   `origin` tinyint(1) NOT NULL DEFAULT '0',
+  `forum_mode` tinyint(1) NOT NULL DEFAULT '0',
   `last-child` tinyint(1) unsigned NOT NULL DEFAULT '1',
   PRIMARY KEY (`id`),
   KEY `guid` (`guid`),
@@ -244,6 +245,7 @@ CREATE TABLE IF NOT EXISTS `item` (
   KEY `starred` (`starred`),
   KEY `deleted` (`deleted`),
   KEY `origin`  (`origin`),
+  KEY `forum_mode` (`forum_mode`),
   KEY `last-child` (`last-child`),
   KEY `unseen` (`unseen`),
   KEY `wall` (`wall`),