pgsql: Add: > * Speed WAL recovery by allowing more than one page to be

Log Message:
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Add:

* Speed WAL recovery by allowing more than one page to be prefetched

This involves having a separate process that can be told which pages
the recovery process will need in the near future.
http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php

Modified Files:
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pgsql/doc:
TODO (r1.2247 -> r1.2248)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/TODO?r1=1.2247&r2=1.2248)
pgsql/doc/src/FAQ:
TODO.html (r1.756 -> r1.757)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html?r1=1.756&r2=1.757)