Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 11811)
+++ trunk/ippTools/src/difftool.c	(revision 11818)
@@ -235,20 +235,4 @@
         return false;
     }
-    psString exp_tag = psMetadataLookupStr(&status, config->args, "-exp_tag");
-    if (!status) {
-        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -exp_tag");
-        return false;
-    }
-    if (!exp_tag) {
-        psError(PS_ERR_UNKNOWN, true, "-exp_tag is required");
-        return false;
-    }
-
-    // defaults to 0
-    psS32 p3_version = psMetadataLookupS32(&status, config->args, "-p3_version");
-    if (!status) {
-        psError(PS_ERR_UNKNOWN, false, "failed to lookup value for -p3_version");
-        return false;
-    }
 
     psString kind = psMetadataLookupStr(&status, config->args, "-kind");
@@ -273,6 +257,4 @@
             skycell_id,
             tess_id,
-            exp_tag,
-            p3_version,
             kind,
             template
@@ -402,6 +384,4 @@
         "  AND p5InputScfile.skycell_id = p4Scfile.skycell_id\n"
         "  AND p5InputScfile.tess_id    = p4Scfile.tess_id\n"
-        "  AND p5InputScfile.exp_tag    = p4Scfile.exp_tag\n"
-        "  AND p5InputScfile.p3_version = p4Scfile.p3_version\n"
         " LEFT JOIN p5DiffScfile\n"
         "   ON p5InputScfile.p5_id      = p5DiffScfile.p5_id\n"