# isSubnetOf

Takes 2 arguments of type STRING. The first argument is an `ipPrefix`, and the second argument is a single `ipAddress`. This function handles both IPv4 and IPv6 arguments.

Returns a boolean value checking if `ipAddress` is in the subnet of `ipPrefix`

## Signatures

`isSubnetOf(ipPrefix, ipAddress) -> boolean`

## Usage Examples

See the following sample queries where `isSubnetOf` is used in different parts of the query.

```sql
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
```

```sql
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
```

```sql
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');
```

```sql
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;
```