--- doc/src/sgml/monitoring.sgml.orig 2017-04-07 22:37:55.388708334 +0200
+++ doc/src/sgml/monitoring.sgml 2017-04-07 22:38:16.582047695 +0200
@@ -1275,6 +1275,7 @@
ProcArrayGroupUpdate>
Waiting for group leader to clear transaction id at transaction end.
+
SafeSnapshot>
Waiting for a snapshot for a READ ONLY DEFERRABLE> transaction.