Log Message:
-----------
Backpatch my fix of rev 1.48 to avoid a division-by-zero error in the
cost-limit vacuum code. Per trouble report from Joshua Drake.
Tags:
----
REL8_2_STABLE
Modified Files:
--------------
pgsql/src/backend/postmaster:
autovacuum.c (r1.29 -> r1.29.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/autovacuum.c?r1=1.29&r2=1.29.2.1)