Add TODO items

TODO

@@ -71,3 +71,6 @@ Usability improvements
 * debug output: show some repetitive output only if --verbose flag set to prevent
   excessive log growth
 
+* repmgr: add interrupt handler, so that if the program is interrupted
+  while running a backup, an attempt can be made to execute pg_stop_backup()
+  on the primary, to prevent an orphaned backup state existing.

dbutils.c

@@ -1075,6 +1075,7 @@ create_node_record(PGconn *conn, char *action, int node, char *type, int upstrea
 		maxlen_snprintf(slot_name_buf, "%s", "NULL");
 	}
 
+	/* XXX convert to placeholder query */
 	sqlquery_snprintf(sqlquery,
 					  "INSERT INTO %s.repl_nodes "
 					  "       (id, type, upstream_node_id, cluster, "