Andrew Gierth <andrew@tao11.riddles.org.uk> writes:
> point <-> point, circle <-> point and polygon <-> point all exist as
> orderable-by-operator operators (in fact they are the only ones by
> default). But there's no box <-> point operator at all, and no index
> support for box <-> box.
> Was this intentional, or just a strange oversight?
Seems like an oversight. None of these operators have commutators,
but it seems like they all should:
<->(point,line)<->(point,lseg)<->(point,box)<->(lseg,line)<->(lseg,box)<->(point,path)<->(circle,polygon)<->(line,box)
Dunno about the index-support angle.
regards, tom lane
