Index: trunk/dbconfig/changes.txt
===================================================================
--- trunk/dbconfig/changes.txt	(revision 28873)
+++ trunk/dbconfig/changes.txt	(revision 29493)
@@ -1945,2 +1945,10 @@
 ALTER TABLE diffSummary DROP PRIMARY KEY, ADD PRIMARY KEY (diff_id, projection_cell);
 ALTER TABLE stackSummary DROP PRIMARY KEY, ADD PRIMARY KEY (sass_id, projection_cell);
+
+-- changes to support cleanup of the background preserved images
+ALTER TABLE chipBackgroundImfile ADD COLUMN data_state VARCHAR(64) AFTER path_base;
+ALTER TABLE chipBackgroundImfile ADD KEY(data_state);
+ALTER TABLE warpBackgroundSkyfile ADD COLUMN data_state VARCHAR(64) AFTER path_base;
+ALTER TABLE warpBackgroundSkyfile  ADD KEY(data_state);
+
+ALTER TABLE stackSumSkyfile ADD COLUMN mjd_obs double AFTER good_frac;