Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> No really, the built-in geometry types are considered kind of legacy. If you
> want to deal with something more modern, you may want to look into PostGIS.
Or, if you want to fix them, feel free to submit a patch. But there is
no one among the current group of developers who seems to have any
interest in re-implementing those types.
regards, tom lane