Log Message:
-----------
Add TODO:
* Consider whether duplicate keys should be sorted by block/offset
http://archives.postgresql.org/pgsql-hackers/2008-03/msg00558.php
Create new "Sorting" TODO section.
Modified Files:
--------------
pgsql/doc:
TODO (r1.2467 -> r1.2468)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/TODO?r1=1.2467&r2=1.2468)
pgsql/doc/src/FAQ:
TODO.html (r1.973 -> r1.974)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html?r1=1.973&r2=1.974)