Index: trunk/ippTools/src/stacktool.c
===================================================================
--- trunk/ippTools/src/stacktool.c	(revision 36009)
+++ trunk/ippTools/src/stacktool.c	(revision 36361)
@@ -44,4 +44,5 @@
 static bool tosummaryMode(pxConfig *config);
 static bool addsummaryMode(pxConfig *config);
+static bool revertsummaryMode(pxConfig *config);
 static bool summaryMode(pxConfig *config);
 static bool pendingcleanuprunMode(pxConfig *config);
@@ -85,4 +86,5 @@
         MODECASE(STACKTOOL_MODE_TOSUMMARY,             tosummaryMode);
         MODECASE(STACKTOOL_MODE_ADDSUMMARY,            addsummaryMode);
+	MODECASE(STACKTOOL_MODE_REVERTSUMMARY,         revertsummaryMode);
         MODECASE(STACKTOOL_MODE_SUMMARY,               summaryMode);
         MODECASE(STACKTOOL_MODE_PENDINGCLEANUPRUN,     pendingcleanuprunMode);
@@ -1570,4 +1572,32 @@
 }
 
+static bool revertsummaryMode(pxConfig *config) {
+  PS_ASSERT_PTR_NON_NULL(config, NULL);
+  PXOPT_LOOKUP_S64(sass_id, config->args, "-sass_id", true, false);
+
+  psString query = pxDataGet("stacktool_revertsummary.sql");
+  if (!query) {
+    psError(PXTOOLS_ERR_SYS, false, "failed to retreive SQL statement");
+    return(false);
+  }
+  if (!p_psDBRunQueryF(config->dbh, query, sass_id)) {
+    psError(PS_ERR_UNKNOWN, false, "database error");
+    psFree(query);
+    return(false);
+  }
+  psS64 numUpdated = psDBAffectedRows(config->dbh);
+
+  if (numUpdated != 1) {
+    psError(PS_ERR_UNKNOWN, false, "should have affected 1 row");
+    psFree(query);
+    return(false);
+  }
+  psLogMsg("stacktool", PS_LOG_INFO, "Deleted %ld rows", numUpdated);
+  
+  psFree(query);
+
+  return(true);
+}
+
 static bool summaryMode(pxConfig *config)
 {