Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 29225)
+++ trunk/ippTools/src/difftool.c	(revision 29299)
@@ -60,4 +60,5 @@
 static bool tofullskyfileMode(pxConfig *config);
 static bool listrunMode(pxConfig *config);
+static bool listssrunMode(pxConfig *config);
 static bool setskyfiletoupdateMode(pxConfig *config);
 
@@ -108,4 +109,5 @@
         MODECASE(DIFFTOOL_MODE_TOFULLSKYFILE,         tofullskyfileMode);
         MODECASE(DIFFTOOL_MODE_LISTRUN,               listrunMode);
+        MODECASE(DIFFTOOL_MODE_LISTSSRUN,             listssrunMode);
         MODECASE(DIFFTOOL_MODE_SETSKYFILETOUPDATE,    setskyfiletoupdateMode);
 
@@ -2870,5 +2872,5 @@
     psMetadata *where = psMetadataAlloc();
     PXOPT_COPY_S64(config->args, where,  "-diff_id",    "diffRun.diff_id",  "==");
-    PXOPT_COPY_STR(config->args, where,  "-tess_id",    "diffRun.tess_id",  "==");
+    PXOPT_COPY_STR(config->args, where,  "-tess_id",    "diffRun.tess_id",  "LIKE");
     PXOPT_COPY_S64(config->args, where,  "-magicked",   "diffRun.magicked", "==");
     PXOPT_COPY_STR(config->args, where,  "-state",      "diffRun.state",    "==");
@@ -2979,4 +2981,121 @@
     return true;
 }
+static bool listssrunMode(pxConfig *config)
+{
+    PS_ASSERT_PTR_NON_NULL(config, false);
+
+    psMetadata *where = psMetadataAlloc();
+    PXOPT_COPY_S64(config->args, where,  "-diff_id",    "diffRun.diff_id",  "==");
+    PXOPT_COPY_S64(config->args, where,  "-stack_id",   "stackInput.stack_id",  "==");
+    PXOPT_COPY_S64(config->args, where,  "-template_stack_id",  "stackTemplate.stack_id",  "==");
+    PXOPT_COPY_STR(config->args, where,  "-tess_id",    "diffRun.tess_id",  "LIKE");
+    PXOPT_COPY_STR(config->args, where,  "-state",      "diffRun.state",    "==");
+    pxAddLabelSearchArgs (config, where, "-label",      "diffRun.label", "LIKE");
+    pxAddLabelSearchArgs (config, where, "-data_group", "diffRun.data_group", "LIKE");
+    pxAddLabelSearchArgs (config, where, "-dist_group", "diffRun.dist_group", "LIKE");
+
+    // lookup these so we don't compare to zero if they are not supplied
+    PXOPT_LOOKUP_F64(mjd_obs_begin, config->args, "-mjd_obs_begin", false, false);
+    PXOPT_LOOKUP_F64(mjd_obs_end, config->args, "-mjd_obs_end", false, false);
+    
+    PXOPT_LOOKUP_BOOL(template, config->args, "-template", false);
+
+    if (!template) {
+        if (mjd_obs_begin) {
+            PXOPT_COPY_F64(config->args, where, "-mjd_obs_begin", "stackInput.mjd_obs",  ">=");
+        }
+        if (mjd_obs_end) {
+            PXOPT_COPY_F64(config->args, where, "-mjd_obs_end",   "stackInput.mjd_obs",  "<=");
+        }
+        PXOPT_COPY_STR(config->args, where, "-filter",        "stackInputRun.filter", "LIKE");
+    } else {
+        if (mjd_obs_begin) {
+            PXOPT_COPY_F64(config->args, where, "-mjd_obs_begin", "stackTemplate.mjd_obs",  ">=");
+        }
+        if (mjd_obs_end) {
+            PXOPT_COPY_F64(config->args, where, "-mjd_obs_end",   "stackTemplate.mjd_obs",  "<=");
+        }
+        PXOPT_COPY_STR(config->args, where, "-filter",        "stackTemplateRun.filter", "LIKE");
+    }
+
+    PXOPT_LOOKUP_BOOL(all, config->args, "-all", false);
+    PXOPT_LOOKUP_U64(limit, config->args, "-limit", false, false);
+    PXOPT_LOOKUP_BOOL(simple, config->args, "-simple", false);
+    PXOPT_LOOKUP_BOOL(pstamp_order, config->args, "-pstamp_order", false);
+
+    psString where2 = NULL;
+    psString query = pxDataGet("difftool_listssrun.sql");
+    if (!query) {
+        psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
+        return false;
+    }
+
+    if (psListLength(where->list)) {
+        psString whereClause = psDBGenerateWhereConditionSQL(where, NULL);
+        psStringAppend(&query, " AND %s", whereClause);
+        psFree(whereClause);
+    } else if (where2) {
+        psStringAppend(&query, " AND %s", where2);
+    } else if (!all) {
+        psError(PXTOOLS_ERR_CONFIG, true, "search parameters or -all are required");
+        return false;
+    }
+    psFree(where);
+
+    if (pstamp_order) {
+        if (template) {
+            psStringAppend(&query, " ORDER BY stackTemplate.stack_id, diff_id DESC");
+        } else {
+            psStringAppend(&query, " ORDER BY stackInput.stack_id, diff_id DESC");
+        }
+    }
+            
+    // treat limit == 0 as "no limit"
+    if (limit) {
+        psString limitString = psDBGenerateLimitSQL(limit);
+        psStringAppend(&query, " %s", limitString);
+        psFree(limitString);
+    }
+
+    if (!p_psDBRunQuery(config->dbh, query)) {
+        psError(PS_ERR_UNKNOWN, false, "database error");
+        psFree(query);
+        return false;
+    }
+    psFree(query);
+
+    psArray *output = p_psDBFetchResult(config->dbh);
+    if (!output) {
+        psErrorCode err = psErrorCodeLast();
+        switch (err) {
+            case PS_ERR_DB_CLIENT:
+                psError(PXTOOLS_ERR_SYS, false, "database error");
+            case PS_ERR_DB_SERVER:
+                psError(PXTOOLS_ERR_PROG, false, "database error");
+            default:
+                psError(PXTOOLS_ERR_PROG, false, "unknown error");
+        }
+
+        return false;
+    }
+    if (!psArrayLength(output)) {
+        psTrace("difftool", PS_LOG_INFO, "no rows found");
+        psFree(output);
+        return true;
+    }
+
+    if (psArrayLength(output)) {
+        // negative simple so the default is true
+        if (!ippdbPrintMetadatas(stdout, output, "diffRun", !simple)) {
+            psError(PS_ERR_UNKNOWN, false, "failed to print array");
+            psFree(output);
+            return false;
+        }
+    }
+
+    psFree(output);
+
+    return true;
+}
 // a very specfic function to queue a cleaned warpSkyfile to be updated
 static bool setskyfiletoupdateMode(pxConfig *config)