Re: Interface of the R-tree in order to work with postgresql

hi, thanks for writing

I'm doing research about spatial access methods( reading a lot of papers and
programming a lot too ) but also I want to know how can I add my new data
structure( if someday i get it, of course =) ) in the postgresql;in order to
do so, first I have to know how the R-tree works with the postgreql, I mean,
I already know the R-tree algorithms but I don't know how does the R-tree
interfaces with postgresql.

I hope you can help me
regards Jorge

On 10/4/06, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> "jorge alberto" <jorge(dot)is(dot)a(dot)geek(at)gmail(dot)com> writes:
> > I want to know how can I add a new spatial access method into the
> > postgresql,
>
> Developing a new index access method is hardly a novice-level task.
> Are you sure you need to do that? Perhaps you can accomplish what
> you want by making a new datatype and interfacing it to GiST indexes.
> That's still a pretty large chunk to bite off, but there are examples
> available --- look into the contrib/ directory to find existing add-on
> datatypes that have GiST indexing capability. The documentation for
> this area is weak. Be prepared to read source code ...
>
> regards, tom lane
>