pgsql: Add: < < > o During index creation, pre-sort the tuples to

Log Message:
-----------
Add:

<
<

o During index creation, pre-sort the tuples to improve build speed

http://archives.postgresql.org/pgsql-hackers/2007-03/msg01199.php

Modified Files:
--------------
pgsql/doc:
TODO (r1.2125 -> r1.2126)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.2125&amp;r2=1.2126)
pgsql/doc/src/FAQ:
TODO.html (r1.626 -> r1.627)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.626&amp;r2=1.627)