Index: lams_common/db/sql/create_lams_11_tables.sql
===================================================================
diff -u -ra7b8600cfd047060de28c119b09c0ca13222ff5b -r9dd2af2b02ec99dd3490c39cdd634b6c77f0527c
--- lams_common/db/sql/create_lams_11_tables.sql	(.../create_lams_11_tables.sql)	(revision a7b8600cfd047060de28c119b09c0ca13222ff5b)
+++ lams_common/db/sql/create_lams_11_tables.sql	(.../create_lams_11_tables.sql)	(revision 9dd2af2b02ec99dd3490c39cdd634b6c77f0527c)
@@ -1077,7 +1077,7 @@
      , patch_level INTEGER(11) NOT NULL
      , patch_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
      , patch_in_progress CHAR(1) NOT NULL DEFAULT 'F'
-     , PRIMARY KEY (system_name)
+     , PRIMARY KEY(system_name, patch_level)
 )ENGINE=InnoDB;
 
 CREATE TABLE lams_registration (