Log Message:
-----------
Add a note to the documentation to clarify that even when
"autovacuum = off", the system may still periodically start autovacuum
processes to prevent XID wraparound. Patch from David Fetter, with
editorializing.
Modified Files:
--------------
pgsql/doc/src/sgml:
config.sgml (r1.122 -> r1.123)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml.diff?r1=1.122&r2=1.123)