pgsql: Updates from Simon Riggs: < that can spam more than one table.

Log Message:
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Updates from Simon Riggs:

< that can spam more than one table.

that can span more than one table.

239c239
< rather than just col1

rather than just col1; also called skip-scanning.

641c641,642
< * Add free-behind capability for large sequential scans [fadvise]

* Allow free-behind capability for large sequential scans, perhaps using
posix_fadvise() [fadvise]

Modified Files:
--------------
pgsql/doc:
TODO (r1.1378 -> r1.1379)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1378&amp;r2=1.1379)