Index: /tags/ipp-20111110/ippTools/src/vptool.c
===================================================================
--- /tags/ipp-20111110/ippTools/src/vptool.c	(revision 32792)
+++ /tags/ipp-20111110/ippTools/src/vptool.c	(revision 32793)
@@ -178,13 +178,4 @@
     PXOPT_LOOKUP_S64(exp_id, config->args, "-exp_id", false, false);
 
-    psMetadata *where = psMetadataAlloc();
-    pxchipGetSearchArgs (config, where); // rawExp only
-    pxAddLabelSearchArgs (config, where, "-label", "newExp.label", "LIKE"); // define using newExp label
-
-    if (!psListLength(where->list)) {
-        psFree(where);
-        psError(PXTOOLS_ERR_CONFIG, false, "search parameters are required");
-        return false;
-    }
 
     PXOPT_LOOKUP_STR(label, config->args, "-set_label", true, false);
@@ -195,7 +186,17 @@
 
     // default
-    PXOPT_LOOKUP_BOOL(unique, config->args, "-unique", false);
+    PXOPT_LOOKUP_BOOL(rerun, config->args, "-rerun", false);
     PXOPT_LOOKUP_BOOL(pretend, config->args, "-pretend", false);
     PXOPT_LOOKUP_BOOL(simple, config->args, "-simple", false);
+
+    psMetadata *where = psMetadataAlloc();
+    pxchipGetSearchArgs (config, where); // rawExp only
+    pxAddLabelSearchArgs (config, where, "-label", "newExp.label", "="); // define using newExp label
+
+    if (!psListLength(where->list)) {
+        psFree(where);
+        psError(PXTOOLS_ERR_CONFIG, false, "search parameters are required");
+        return false;
+    }
 
     // find the exp_id of all the exposures that we want to queue up.
@@ -213,6 +214,6 @@
     psFree(where);
 
-    if (unique) {
-      psStringAppend(&query, "AND vp_id IS NULL");
+    if (!rerun) {
+      psStringAppend(&query, "\n  AND vp_id IS NULL\n  AND (vpRun.label = '%s' OR vpRun.label IS NULL)", label);
     }
     
Index: /tags/ipp-20111110/ippTools/src/vptoolConfig.c
===================================================================
--- /tags/ipp-20111110/ippTools/src/vptoolConfig.c	(revision 32792)
+++ /tags/ipp-20111110/ippTools/src/vptoolConfig.c	(revision 32793)
@@ -50,5 +50,5 @@
     psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-label", PS_META_DUPLICATE_OK, "search by newExp label (LIKE comparison)", NULL);
 
-    psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-set_label",  0,            "define label", NULL);
+    psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-set_label",  0,            "define label (required)", NULL);
     psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-set_data_group",  0,      "define data group", NULL);
     psMetadataAddStr(definebyqueryArgs, PS_LIST_TAIL, "-set_workdir",  0,            "define workdir (required)", NULL);
@@ -56,5 +56,5 @@
     psMetadataAddS64(definebyqueryArgs, PS_LIST_TAIL, "-set_dest_id",  0,      "define destination", 0);
     psMetadataAddBool(definebyqueryArgs, PS_LIST_TAIL, "-pretend",  0,            "do not actually modify the database", false);
-    psMetadataAddBool(definebyqueryArgs, PS_LIST_TAIL, "-unique",   0,           "only queue exposures that have no previous vpRun", false);
+    psMetadataAddBool(definebyqueryArgs, PS_LIST_TAIL, "-rerun",   0,           "queue exposures even if a previous vpRun exists", false);
     psMetadataAddBool(definebyqueryArgs, PS_LIST_TAIL, "-simple",  0,            "use the simple output format", false);
     // -pendingrun