Index: branches/5.2.x/install/install_schema.sql
===================================================================
diff -u -r15560 -r16706
--- branches/5.2.x/install/install_schema.sql	(.../install_schema.sql)	(revision 15560)
+++ branches/5.2.x/install/install_schema.sql	(.../install_schema.sql)	(revision 16706)
@@ -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)
 );
 
@@ -744,4 +744,4 @@
 	ADD INDEX (PrimaryCurrencyId),
 	ADD INDEX (Currencies),
 	ADD INDEX (PrimaryPaymentTypeId),
-	ADD INDEX (PaymentTypes);
\ No newline at end of file
+	ADD INDEX (PaymentTypes);
