INSERT INTO ip.cidr (cid_id, cid_res_id, cid_cidr)
SELECT a, b, network(c) FROM dblink('host=xxx user=xxx password=xxx dbname=xxx', 'SELECT ipp_id, res_id, ipp_ipcidr FROM public.ipplage')
AS x(a integer, b integer, c cidr)

INSERT INTO ip.cidr (cid_id, cid_res_id, cid_cidr)
SELECT a, b, network(c) FROM dblink('host=xxx user=xxx password=xxx dbname=xxx', 'SELECT ipp_id, res_id, ipp_ipcidr::inet::cidr FROM public.ipplage')
AS x(a integer, b integer, c cidr)

INSERT INTO ip.cidr (cid_id, cid_res_id, cid_cidr)
SELECT a, b, network(c) FROM dblink('host=xxx user=xxx password=xxx dbname=xxx', 'SELECT ipp_id, res_id, ipp_ipcidr FROM public.ipplage')
AS x(a integer, b integer, c inet)