isSubnetOf

SELECT isSubnetOf('192.168.0.1/24', '192.168.0.225') 
AS result
FROM myTable;
---> returns true

SELECT isSubnetOf('1.2.3.128/26', '1.2.5.1') 
AS result
FROM myTable;
---> returns false

SELECT isSubnetOf('2001:4800:7825:103::/64', '2001:4800:7825:103::2050')
AS result
FROM myTable;
---> returns true

SELECT isSubnetOf('7890:db8:113::8a2e:370:7334/127', '7890:db8:113::8a2e:370:7336') 
AS result
FROM myTable;
---> returns false

SELECT count(*) 
FROM myTable 
WHERE isSubnetOf('192.168.0.1/24', ipAddressCol);

SELECT count(*) 
FROM myTable 
WHERE isSubnetOf('192.168.0.1/24', ipAddressCol) 
OR isSubnetOf(ipPrefixCol, '7890:db8:113::8a2e:370:7336');

SELECT 
    CASE 
        WHEN isSubnetOf('105.25.245.115/27', srcIPAddress) THEN 'case1' 
        WHEN isSubnetOf('105.25.245.115/27', dstIPAddress) THEN 'case2'
        ELSE 'case3' 
    END AS differentFlow
FROM myTable;