In article <CABRT9RAr2bFrxdx93H_aEQsKmuchMwurSfENP8itSpExsWsF7g@mail.gmail.com>,
Marti Raudsepp <marti@juffo.org> writes:
> Hi,
> On Tue, Jul 5, 2011 at 09:50, Yan Cheng CHEOK <yccheok@yahoo.com> wrote:
>> The essential difference between inet and cidr data types is that inet accepts values with nonzero bits to the right
ofthe netmask, whereas cidr does not.
> Say, if you have a /8 netmask, the 'cidr' type requires that all the
> 24 rightmost bits are zero. inet does not have this requirement.
> E.g:
> db=# select '255.0.0.0/8'::cidr;
> 255.0.0.0/8
> db=# select '255.1.0.0/8'::cidr;
> ERROR: invalid cidr value: "255.1.0.0/8"
> DETAIL: Value has bits set to right of mask.
> And inet allows this:
> db=# select '255.1.0.0/8'::inet;
> 255.1.0.0/8
> Hope that helps.
Do the inet/cidr types have any advantage over the ip4r contrib module?
