--- src/pl/plpgsql/src/plpgsql.h.orig	Wed Oct  4 03:30:14 2006
+++ src/pl/plpgsql/src/plpgsql.h	Wed Jan 31 19:39:55 2007
@@ -142,6 +142,7 @@
 	Oid			typioparam;
 	FmgrInfo	typinput;		/* lookup info for typinput function */
 	int32		atttypmod;		/* typmod (taken from someplace else) */
+	bool		typnotnull;		/* for domains */
 } PLpgSQL_type;