pgsql: Add: > o Have timestamp subtraction not call justify_hours()? >

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

o Have timestamp subtraction not call justify_hours()?

http://archives.postgresql.org/pgsql-sql/2006-10/msg00059.php

< o Add overflow checking to timestamp and interval arithmetic

o Add overflow checking to timestamp and interval arithmetic

Modified Files:
--------------
pgsql/doc:
TODO (r1.2146 -> r1.2147)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.2146&amp;r2=1.2147)
pgsql/doc/src/FAQ:
TODO.html (r1.647 -> r1.648)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.647&amp;r2=1.648)