Index: branches/5.3.x/install/install_schema.sql
===================================================================
diff -u -N -r16133 -r16724
--- branches/5.3.x/install/install_schema.sql	(.../install_schema.sql)	(revision 16133)
+++ branches/5.3.x/install/install_schema.sql	(.../install_schema.sql)	(revision 16724)
@@ -318,7 +318,7 @@
   BackOrderDate int(11) DEFAULT NULL,
   CreatedOn int(10) unsigned DEFAULT NULL,
   Modified int(10) unsigned DEFAULT NULL,
-  Expire int(10) unsigned DEFAULT NULL,
+  `Expire` int(10) unsigned DEFAULT NULL,
   Hits double NOT NULL DEFAULT '0',
   CachedRating varchar(10) NOT NULL DEFAULT '0',
   CachedVotesQty int(11) NOT NULL DEFAULT '0',
@@ -346,7 +346,7 @@
   AccessDurationType tinyint(4) DEFAULT NULL,
   AccessStart int(11) DEFAULT NULL,
   AccessEnd int(11) DEFAULT NULL,
-  Virtual tinyint(4) NOT NULL DEFAULT '0',
+  `Virtual` tinyint(4) NOT NULL DEFAULT '0',
   ProcessingData text,
   PackageContent mediumtext,
   OptionsSelectionMode tinyint(4) DEFAULT '0',
@@ -374,8 +374,8 @@
   KEY HotItem (HotItem),
   KEY Featured (Featured),
   KEY OnSale (OnSale),
-  KEY Expire (Expire),
-  KEY Virtual (Virtual),
+  KEY `Expire` (`Expire`),
+  KEY `Virtual` (`Virtual`),
   KEY AccessGroupId (AccessGroupId)
 );