Index: trunk/ippTools/share/difftool_definebyquery_part2.sql
===================================================================
--- trunk/ippTools/share/difftool_definebyquery_part2.sql	(revision 21308)
+++ trunk/ippTools/share/difftool_definebyquery_part2.sql	(revision 23688)
@@ -1,36 +1,36 @@
 -- insert skycells to diff
 INSERT INTO skycellsToDiff
+SELECT
+    0,                      -- diff_id
+    warpSkyfile.skycell_id,
+    warpSkyfile.warp_id,    -- warp1
+    NULL,                   -- stack1
+    NULL,                   -- warp2
+    max_stack_id,           -- stack2
+    warpSkyfile.tess_id,
+    0
+FROM warpSkyfile
+JOIN warpRun USING(warp_id)
+LEFT JOIN (
     SELECT
-        0,                      -- diff_id
-        warpSkyfile.skycell_id,
-        warpSkyfile.warp_id,    -- warp1
-        NULL,                   -- stack1
-        NULL,                   -- warp2
-        max_stack_id,           -- stack2
-        warpSkyfile.tess_id,
-        0
-        FROM warpSkyfile
-        JOIN warpRun USING(warp_id)
-        LEFT JOIN (
-            SELECT
-                MAX(stack_id) AS max_stack_id, -- most recent stack, by virtue of auto-increment
-                stackRun.skycell_id,
-                stackRun.tess_id,
-                filter
-            FROM stackRun
-            JOIN stackSumSkyfile USING(stack_id)
-            WHERE stackSumSkyfile.fault = 0
-                AND stackRun.state = 'full'
-            -- stacks where hook %s
-            GROUP BY
-                skycell_id,
-                filter
-            ) as bestStacks
-        USING(skycell_id)
-        WHERE
-            warpSkyfile.warp_id = %lld
-            AND ignored = 0
-            AND filter = '%s'
-            AND warpSkyfile.tess_id = bestStacks.tess_id
-        -- (good fraction test goes here for example also above)
-        -- warp where hook %s
+        MAX(stack_id) AS max_stack_id, -- most recent stack, by virtue of auto-increment
+        stackRun.skycell_id,
+        stackRun.tess_id,
+        filter
+    FROM stackRun
+    JOIN stackSumSkyfile USING(stack_id)
+    WHERE stackSumSkyfile.fault = 0
+        AND stackSumSkyfile.quality = 0
+        AND stackRun.state = 'full'
+    -- stacks where hook %s
+    GROUP BY
+        skycell_id,
+        filter
+    ) as bestStacks USING(skycell_id)
+WHERE
+    warpSkyfile.warp_id = %lld
+    AND warpSkyfile.fault = 0
+    AND warpSkyfile.quality = 0
+    AND filter = '%s'
+    AND warpSkyfile.tess_id = bestStacks.tess_id
+-- warp where hook %s