Robert Haas wrote:
> > * inet datatypes don't have a commutative operator on which a unique
> > index can be built. There is no "overlaps" equivalent, which again is a
> > shame because that stops them being used with the new feature.
>
> This would be a nice thing to fix, and I was thinking about doing it,
> but I just ran out of time. I think it can be left for 9.1. I have
> not infrequently wanted to build an IP allocation database, and this
> would be perfect for that.
Added to TODO:
Add INET overlaps operator, for use by exclusion constraints *
http://archives.postgresql.org/pgsql-hackers/2010-03/msg00845.php
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ None of us is going to be here forever. +