Câu trả lời:
Có vẻ khá dễ dàng:
postgres=# create table inet_test (address inet);
CREATE TABLE
postgres=# insert into inet_test values ('192.168.2.1');
INSERT 0 1
postgres=# insert into inet_test values ('192.168.2.1/24');
INSERT 0 1
postgres=# select * from inet_test;
 address
----------------
 192.168.2.1
 192.168.2.1/24
(2 rows)::INET.  '192.168.1.083'::INETnên là đủ
                    
"192.168.1.082".