Log Message:
-----------
Fix confusion between relfilenode and Oid.
Also, make pg_total_relation_size include the size of the
TOAST index.
Modified Files:
--------------
pgsql/src/backend/utils/adt:
dbsize.c (r1.4 -> r1.5)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/dbsize.c.diff?r1=1.4&r2=1.5)