Index: /branches/release-0.4-beta/SQL/mssql.initial.sql
===================================================================
--- /branches/release-0.4-beta/SQL/mssql.initial.sql	(revision 3545)
+++ /branches/release-0.4-beta/SQL/mssql.initial.sql	(revision 3546)
@@ -210,5 +210,5 @@
 GO
 
- CREATE  INDEX [IX_identities_user_id] ON [dbo].[identities]([user_id]) ON [PRIMARY]
+CREATE  INDEX [IX_identities_user_id] ON [dbo].[identities]([user_id]) ON [PRIMARY]
 GO
 
@@ -228,14 +228,14 @@
 GO
 
- CREATE  INDEX [IX_messages_user_id] ON [dbo].[messages]([user_id]) ON [PRIMARY]
-GO
-
- CREATE  INDEX [IX_messages_cache_key] ON [dbo].[messages]([cache_key]) ON [PRIMARY]
-GO
-
- CREATE  INDEX [IX_messages_uid] ON [dbo].[messages]([uid]) ON [PRIMARY]
-GO
-
- CREATE  INDEX [IX_messages_created] ON [dbo].[messages]([created]) ON [PRIMARY]
+CREATE  INDEX [IX_messages_user_id] ON [dbo].[messages]([user_id]) ON [PRIMARY]
+GO
+
+CREATE  INDEX [IX_messages_cache_key] ON [dbo].[messages]([cache_key]) ON [PRIMARY]
+GO
+
+CREATE  INDEX [IX_messages_uid] ON [dbo].[messages]([uid]) ON [PRIMARY]
+GO
+
+CREATE  INDEX [IX_messages_created] ON [dbo].[messages]([created]) ON [PRIMARY]
 GO
 
@@ -246,5 +246,5 @@
 GO
 
- CREATE  INDEX [IX_session_changed] ON [dbo].[session]([changed]) ON [PRIMARY]
+CREATE  INDEX [IX_session_changed] ON [dbo].[session]([changed]) ON [PRIMARY]
 GO
 
@@ -256,8 +256,43 @@
 GO
 
- CREATE  INDEX [IX_users_username] ON [dbo].[users]([username]) ON [PRIMARY]
-GO
-
- CREATE  INDEX [IX_users_alias] ON [dbo].[users]([alias]) ON [PRIMARY]
-GO
-
+CREATE  INDEX [IX_users_username] ON [dbo].[users]([username]) ON [PRIMARY]
+GO
+
+CREATE  INDEX [IX_users_alias] ON [dbo].[users]([alias]) ON [PRIMARY]
+GO
+
+ALTER TABLE [dbo].[identities] ADD
+    FOREIGN KEY ([FK_identities_user_id]) REFERENCES [dbo].[users] ([user_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[contacts] ADD
+    FOREIGN KEY ([FK_contacts_user_id]) REFERENCES [dbo].[users] ([user_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[contactgroups] ADD
+    FOREIGN KEY ([FK_contactgroups_user_id]) REFERENCES [dbo].[users] ([user_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[cache] ADD
+    FOREIGN KEY ([FK_cache_user_id]) REFERENCES [dbo].[users] ([user_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[messages] ADD
+    FOREIGN KEY ([FK_messages_user_id]) REFERENCES [dbo].[users] ([user_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[contactgroupmembers] ADD
+    FOREIGN KEY ([FK_contactgroupmembers_contactgroup_id]) REFERENCES [dbo].[contactgroups] ([contactgroup_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+
+ALTER TABLE [dbo].[contactgroupmembers] ADD
+    FOREIGN KEY ([FK_contactgroupmembers_contact_id]) REFERENCES [dbo].[contacts] ([contact_id])
+    ON DELETE CASCADE ON UPDATE CASCADE
+GO
+