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add documentation about IPv6CIDRtoIPv6Range and IPv4CIDRtoIPv4Range functions in english

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Guillaume Tassery 2019-04-24 13:20:02 +07:00
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docs/en/query_language/functions/ip_address_functions.md
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@ -147,4 +147,49 @@ SELECT
└─────────────────────────────────────┴─────────────────────┘ └─────────────────────────────────────┴─────────────────────┘
``` ```
## IPv4CIDRtoIPv4Range(ipv4, cidr),
Accepts a UInt32 value interpreted as an IPv4 address in big endian and an UInt8 value containing the CIDR. Return a tuple with two UInt32 interpreted as an IPv4 address in big endian containing the lower range and the higher range of the subnet.
```sql
WITH
IPv4StringToNum('192.168.5.2') AS ipv4,
IPv4CIDRtoIPv4Range(ipv4, 16) AS ip_range
SELECT
IPv4CIDRtoIPv4Range(ipv4, 16),
IPv4NumToString(ip_range.1) AS lower_range,
IPv4NumToString(ip_range.2) AS higher_range
```
```
┌─IPv4CIDRtoIPv4Range(ipv4, 16)─┬─lower_range─┬─higher_range────┐
│ (3232235520,3232301055) │ 192.168.0.0 │ 192.168.255.255 │
└───────────────────────────────┴─────────────┴─────────────────┘
```
## IPv6CIDRtoIPv6Range(ipv6, cidr),
Accepts a FixedString(16) value containing the IPv6 address in binary format and an UInt8 value containing the CIDR. Return a tuple with two FixedString(16) containing the lower range and the higher range of the subnet.
```sql
WITH
IPv6StringToNum('2001:0db8:0000:85a3:0000:0000:ac1f:8001') AS ipv6,
IPv6CIDRtoIPv6Range(ipv6, 32) AS ip_range
SELECT
IPv6NumToString(ip_range.1) AS lower_range,
IPv6NumToString(ip_range.2) AS higher_range
```
```
┌─lower_range─┬─higher_range───────────────────────────┐
│ 2001:db8:: │ 2001:db8:ffff:ffff:ffff:ffff:ffff:ffff │
└─────────────┴────────────────────────────────────────┘
```
[Original article](https://clickhouse.yandex/docs/en/query_language/functions/ip_address_functions/) <!--hide--> [Original article](https://clickhouse.yandex/docs/en/query_language/functions/ip_address_functions/) <!--hide-->