Index: trunk/ippTools/share/difftool_definebyquery_part2.sql
===================================================================
--- trunk/ippTools/share/difftool_definebyquery_part2.sql	(revision 20973)
+++ trunk/ippTools/share/difftool_definebyquery_part2.sql	(revision 21098)
@@ -19,4 +19,5 @@
             FROM stackRun
             JOIN stackSumSkyfile USING(stack_id)
+            -- stacks where hook %s
             GROUP BY 
                 skycell_id,
@@ -31,3 +32,2 @@
         -- (good fraction test goes here for example also above)
         -- warp where hook %s
-        -- stacks where hook %s