Log Message:
-----------
Document why we copy reloptions into CacheMemoryContext after-the-fact.
Modified Files:
--------------
pgsql/src/backend/utils/cache:
relcache.c (r1.296 -> r1.297)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/relcache.c?r1=1.296&r2=1.297)