Index: branches/5.2.x/core/install/install_schema.sql
===================================================================
diff -u -r16634 -r16748
--- branches/5.2.x/core/install/install_schema.sql	(.../install_schema.sql)	(revision 16634)
+++ branches/5.2.x/core/install/install_schema.sql	(.../install_schema.sql)	(revision 16748)
@@ -323,7 +323,8 @@
   KEY dob (dob),
   KEY IsBanned (IsBanned),
   KEY UserType (UserType),
-  KEY Username (Username)
+  KEY Username (Username),
+  KEY Email (Email)
 );
 
 CREATE TABLE UserCustomData (
