Log Message:-----------Treat a zero-D array as empty in int_enum(), per Andrew@supernews.
Modified Files:-------------- pgsql/contrib/intagg: int_aggregate.c (r1.18 -> r1.19) (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/intagg/int_aggregate.c.diff?r1=1.18&r2=1.19)
