Log Message:
-----------
Remove another useless snapshot creation.
Modified Files:
--------------
pgsql/src/backend/postmaster:
autovacuum.c (r1.74 -> r1.75)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/autovacuum.c?r1=1.74&r2=1.75)