diff --git a/doc/TODO b/doc/TODO
index 55bf6453919..17c27a6897c 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -2,7 +2,7 @@
PostgreSQL TODO List
====================
Current maintainer: Bruce Momjian (bruce@momjian.us)
-Last updated: Sat Jan 20 18:08:13 EST 2007
+Last updated: Sat Jan 20 18:18:33 EST 2007
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@@ -885,7 +885,9 @@ Indexes
Such indexes could be more compact if there are only a few distinct values.
Such indexes can also be compressed. Keeping such indexes updated can be
costly.
+
http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
+ http://archives.postgresql.org/pgsql-hackers/2006-12/msg01107.php
* Allow use of indexes to search for NULLs
diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html
index 3f1ed645cee..ee183c9d373 100644
--- a/doc/src/FAQ/TODO.html
+++ b/doc/src/FAQ/TODO.html
@@ -8,7 +8,7 @@
Current maintainer: Bruce Momjian (bruce@momjian.us)
-Last updated: Sat Jan 20 18:08:13 EST 2007
+Last updated: Sat Jan 20 18:18:33 EST 2007
The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html.
@@ -800,7 +800,9 @@ first. There is also a developer's wiki at
Such indexes could be more compact if there are only a few distinct values.
Such indexes can also be compressed. Keeping such indexes updated can be
costly.
- http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
+
+ http://archives.postgresql.org/pgsql-patches/2005-07/msg00512.php
+ http://archives.postgresql.org/pgsql-hackers/2006-12/msg01107.php
Allow use of indexes to search for NULLs
One solution is to create a partial index on an IS NULL expression.