inet type is converted to IPAddr which clears the host part

[vihai]

Hello,

I've read the description of pull request #27 but in my opinion it is hiding a major issue in how IPAddr treats interface addresses.

IPAddr does not have a distinction between IP addresses, Interface addresses (IP+length), Networks (Prefix+Length) and tries (with little success IMHO) to use a single class to represent everything.

PostgreSQL inet type's purpose is to contain addresses or interface addresses; 192.168.0.1/24 is a valid interface address.

When stored in an inet type, it gets automatically cast to an IPAddr which, however, clears the host part, corrupting the value.