Index: lams_tool_laqa/web/WEB-INF/QaSession.hbm.xml
===================================================================
diff -u -r69f36134758d85e347893150aa05da3ba9479159 -r6582f99968f17e3e54b6f83230f6fe0b67b019e6
--- lams_tool_laqa/web/WEB-INF/QaSession.hbm.xml	(.../QaSession.hbm.xml)	(revision 69f36134758d85e347893150aa05da3ba9479159)
+++ lams_tool_laqa/web/WEB-INF/QaSession.hbm.xml	(.../QaSession.hbm.xml)	(revision 6582f99968f17e3e54b6f83230f6fe0b67b019e6)
@@ -8,14 +8,26 @@
     name="org.lamsfoundation.lams.tool.qa.QaSession" 
     table="tl_laqa11_session"
 >
+
     <id
+        name="uid"
+        type="java.lang.Long"
+        column="uid"
+    >
+        <generator class="native" />
+    </id>
+
+
+	<property
         name="qaSessionId"
         type="java.lang.Long"
         column="qa_session_id"
+        not-null="true"
+        length="20"
     >
-		    <generator class="assigned"/>
-    </id>
+    </property>
 
+
     <property
         name="session_start_date"
         type="java.util.Date"