Log Message:
-----------
Treat a zero-D array as empty in int_enum(), per Andrew(at)supernews(dot)
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)