pgsql: Done: < * Allow sequential scans to take advantage of other

Log Message:
-----------
Done:

< * Allow sequential scans to take advantage of other concurrent

* -Allow sequential scans to take advantage of other concurrent

<
< One possible implementation is to start sequential scans from the lowest
< numbered buffer in the shared cache, and when reaching the end wrap
< around to the beginning, rather than always starting sequential scans
< at the start of the table.
<
< http://archives.postgresql.org/pgsql-patches/2006-12/msg00076.php
< http://archives.postgresql.org/pgsql-hackers/2006-12/msg00408.php
< http://archives.postgresql.org/pgsql-hackers/2006-12/msg00784.php
< http://archives.postgresql.org/pgsql-hackers/2007-03/msg00415.php
<

Modified Files:
--------------
pgsql/doc:
TODO (r1.2200 -> r1.2201)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.2200&amp;r2=1.2201)
pgsql/doc/src/FAQ:
TODO.html (r1.701 -> r1.702)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.701&amp;r2=1.702)