Update TODO list.

Author: bmomjian

doc/TODO

@@ -1,6 +1,6 @@
 TODO list for PostgreSQL
 ========================
-Last updated:		Thu Jun 15 09:53:19 EDT 2000
+Last updated:		Tue Jul  4 00:45:03 EDT 2000
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -138,6 +138,7 @@ COMMANDS
 * Prevent truncate on table with a referential integrity trigger
 * MOVE 0 should not move to end of cursor
 * Overhaul ACL (access control) code
+* Add ALTER SESSION SET TRANSACTION ISOLATION
 
 CLIENTS