Update TODO list.

doc/TODO

 TODO list for PostgreSQL
 ========================
-Last updated:		Fri Jul 20 12:07:25 EDT 2001
+Last updated:		Fri Jul 20 12:14:48 EDT 2001
 
 Current maintainer:	Bruce Momjian (pgman@candle.pha.pa.us)
 
@@ -234,7 +234,7 @@ TRANSACTIONS
 
 * Allow autocommit so always in a transaction block
 * Overhaul bufmgr/lockmgr/transaction manager
-* Allow nested transactions (Vadim)
+* Allow nested transactions / savepoints (Vadim)
 * Handle transaction rollover (Tom) [transactions]
 
 EXOTIC FEATURES
@@ -244,6 +244,7 @@ EXOTIC FEATURES
 * Allow SQL92 schemas [schema]
 * Allow queries across multiple databases
 * Add pre-parsing phase that converts non-ANSI features to supported features
+* Allow plug-in modules to emulate features from other databases
 * SQL*Net listener that makes PostgreSQL appear as an Oracle database
   to clients
 * Allow Java server-side programming [java]
@@ -302,7 +303,7 @@ MISCELLANEOUS
   connection pooling
 * Make blind writes go through the file descriptor cache
 * Allow logging of query durations
-* Add hash-based aggregates
+* Add hash for evaluating GROUP BY aggregates
 * Read pg_hba.conf only on postmaster startup or SIGHUP (Bruce)
 * Create spinlock sleepers queue so everyone doesn't wake up at once
 
@@ -323,7 +324,6 @@ SOURCE CODE
 * Make elog(LOG) in WAL its own output type, distinct from DEBUG
 * Rename some /contrib modules from pg* to pg_*
 * Move some things from /contrib into main tree, like soundex
-* Allow plug-in modules to emulate features from other databases
 * Remove warnings created by -Wcast-align
 * Move platform-specific ps status display info from ps_status.c to ports
 * Allow ps status display to work on Solaris/SVr4-based systems