jian he <jian.universality@xxxxxxxxx> writes: > should I expect the typdelim be a white space? Since '1 2'::int2vector > works, '1,2'::int2vector does not work. typdelim applies to the type's associated array type, that is int2vector[]. regression=# select '{1 2,3 4 5}'::int2vector[]; int2vector ----------------- {"1 2","3 4 5"} (1 row) regards, tom lane