Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 18679)
+++ trunk/ippTools/src/difftool.c	(revision 18975)
@@ -519,7 +519,8 @@
 
     psMetadata *where = psMetadataAlloc();
-    PXOPT_COPY_S64(config->args, where,  "-diff_id", "diff_id", "==");
-    PXOPT_COPY_STR(config->args, where, "-skycell_id", "skycell_id", "==");
-    PXOPT_COPY_STR(config->args, where, "-tess_id", "tess_id", "==");
+    PXOPT_COPY_S64(config->args, where,  "-diff_id", "diffSkyfile.diff_id", "==");
+    PXOPT_COPY_STR(config->args, where, "-skycell_id", "diffSkyfile.skycell_id", "==");
+    PXOPT_COPY_STR(config->args, where, "-tess_id", "diffSkyfile.tess_id", "==");
+    PXOPT_COPY_STR(config->args, where, "-exp_id", "rawExp.exp_id", "==");
 
     PXOPT_LOOKUP_U64(limit, config->args, "-limit", false, false);
@@ -533,5 +534,5 @@
 
     if (psListLength(where->list)) {
-        psString whereClause = psDBGenerateWhereConditionSQL(where, "diffSkyfile");
+        psString whereClause = psDBGenerateWhereConditionSQL(where, NULL);
         psStringAppend(&query, " AND %s", whereClause);
         psFree(whereClause);