FIX: picking submodule by num for grade api #389

db/postgresql/issue389_remote_sendtasks.sql

@@ -56,8 +56,10 @@ BEGIN
              JOIN modules on modules.id = submodules.moduleid
              JOIN disciplines on modules.disciplineid = disciplines.id
     WHERE disciplines.id = pdiscipline AND modules."type" = 'regular'
-    ORDER BY submodules.ordernum ASC
-        OFFSET pnumber;
+    ORDER by modules.ordernum asc,
+             submodules.ordernum asc
+        OFFSET pnumber
+        limit 1;
 
     RETURN vSubmoduleID;
     EXCEPTION