On 2 Jul 2012, at 16:13, Nico Williams wrote:
> That reminds me: it'd be nice to have a bit string type, since the
> correct way to sort IPv4 CIDR blocks is as bit strings.
Nice, definitely!
> This is also
> a proper way to sort IPv6 blocks. Alternatively, it'd be nice to have
> native IP address types in SQLite4, as otherwise one has to jump
> through hoops to handle IP addresses properly.
Bit strings would be more general.
Native IP would remove a sometimes-asserted motivation for preferring
PostgreSQL.
As I see it, ranges, as well as single addresses and CIDR prefixes,
need to be supported, perhaps like the Perl Net::IP module does.
With some care over the encoding, a natural ordering arises which
places nested prefixes, ranges, and individual addresses in the
"right" order. This would eliminate as much as possible of the
hoop-jumping.
I'll try to put together some examples of as illustrations.
/Niall
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