@@ -2026,10 +2026,14 @@
 		       db
 		       "SELECT fieldname FROM keys ORDER BY id DESC;")))
 	(set! *db-keys* res)
 	res)))
 
+;; extract index number given a header/data structure
+(define (db:get-index-by-header header field)
+  (list-index (lambda (x)(equal? x field)) header))
+
 ;; look up values in a header/data structure
 (define (db:get-value-by-header row header field)
   (if (or (null? header) (not row))
       #f
       (let loop ((hed (car header))
@@ -2212,11 +2216,11 @@
   (fprintf out "#,(simple-run ~S ~S ~S ~S)"
 	   (simple-run-target x) (simple-run-id x) (simple-run-runname x) (time->string (seconds->local-time (simple-run-event_time x) ))))
 
 ;; simple get-runs
 ;;
-(define (db:simple-get-runs dbstruct runpatt count offset target)
+(define (db:simple-get-runs dbstruct runpatt count offset target last-update)
     (let* ((res       '())
 	   (keys       (db:get-keys dbstruct))
 	   (runpattstr (db:patt->like "runname" runpatt))
 	   (remfields  (list "id" "runname" "state" "status" "owner" "event_time"))
 	   (targstr    (string-intersperse keys "||'/'||"))
@@ -2223,17 +2227,22 @@
 	   (keystr     (conc targstr " AS target,"
 			     (string-intersperse remfields ",")))
 	   (qrystr     (conc "SELECT " keystr " FROM runs WHERE (" runpattstr ") " ;; runname LIKE ? "
 			     ;; Generate: " AND x LIKE 'keypatt' ..."
 			     " AND target LIKE '" target "'"
-			     " AND state != 'deleted' ORDER BY event_time DESC "
+			     " AND state != 'deleted' "
+			     (if (number? last-update)
+				 (conc " AND last_update >= " last-update)
+				 "")
+			     " ORDER BY event_time DESC "
 			     (if (number? count)
 				 (conc " LIMIT " count)
 				 "")
 			     (if (number? offset)
 				 (conc " OFFSET " offset)
-				 ""))))
+				 "")))
+	   )
     (debug:print-info 11 *default-log-port* "db:get-runs START qrystr: " qrystr " target: " target " offset: " offset " limit: " count)
     (db:with-db dbstruct #f #f
 		(lambda (db)		
 		  (sqlite3:for-each-row
 		   (lambda (target id runname state status owner event_time)