Re: Comments on Exclusion Constraints and related datatypes - Mailing list pgsql-hackers

On mån, 2010-03-22 at 13:15 +0000, Simon Riggs 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.

http://pgfoundry.org/projects/ip4r/ provides an overlap operator.