Update TODO list.

doc/TODO

 TODO list for PostgreSQL
 ========================
-Last updated:		Thu Jun  8 12:19:00 EDT 2000
+Last updated:		Fri Jun  9 08:12:59 EDT 2000
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -153,6 +153,7 @@ REFERENTIAL INTEGRITY
 * Propagate column or table renaming to foreign key constraints
 * Emit a warning at foreign key creation time if no UNIQUE index
   exists on referenced primary key attributes
+* Add deferred trigger queue file? (Jan)
 
 EXOTIC FEATURES