Re: [HACKERS] Re: inet/cidr/bind
От | Bruce Momjian |
---|---|
Тема | Re: [HACKERS] Re: inet/cidr/bind |
Дата | |
Msg-id | 199810190547.BAA02186@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] Re: inet/cidr/bind (darcy@druid.net (D'Arcy J.M. Cain)) |
Ответы |
Re: [HACKERS] Re: inet/cidr/bind
Re: [HACKERS] Re: inet/cidr/bind |
Список | pgsql-hackers |
> Thus spake Paul A Vixie > > Since other people want to use this type differently, I propose that we make > > it into two types: INET for host addresses and CIDR for network addresses. > > Both can include /## to set a netmask if folks really don't like making the > > address and netmask into two adjacent columns. But CIDR has to disallow > > nonzero host-parts or it doesn't mean what I need it to mean. > > I am cool with this. In fact I think I mentioned earlier in the thread that > this requirement (it was a theoretical possibility to me at the time) was > the one reason why two different types might be required. OK so that > means that, as I suggested, we need two underlying function sets, the > inet_net_* ones and the inet_cidr_* ones (might be some efficiency > possible if they are in the same source file and use some common > routines) and the original inet.c file gets changed to cidr.c and > turned into the cidr type. I'll take the existing inet.c as it exists > on my system and submit it as the _new_ inet type. Sorry, but I just have to ask. I am not sure what the issues are, but it is possible to have them all be the same type. Have a netmask field inside the type and a cidr field inside the type, and just use one of them at a time for any given entry? Only one byte each, right? I sure would like to avoid "type/function bloat". Also, could a RULE be created to simulate the network restriction Paul requires? Maybe it is clearer to have two types, with different purposes. I am just asking, and if people are going to need functions to convert between the two types, it may be worth merging them. I was thinking you could display them differently based on which field they used. This is all just a guess. -- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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