Hi everybody!
I'm Jorge from Peru -> South America
I'm new in the list, and this is my first post:

I want to know how can I add a new spatial access method into the
postgresql, I mean where can i find the .h that describes the
interface that a spatial access method, like the R-tree, must have in order
to work with postgresql.

I think that for me to understand how postgresql works with spatial access
methods, like the R-tree, I need to find a .h or .c to begin
reading the code, so can you tell me where to start?

I hope you can help me
thanks in advance
regards

"jorge alberto" <jorge.is.a.geek@gmail.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

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Jorge, you may want to also check out PostGIS which specially enables
postgres server.

http://postgis.refractions.net/
http://postgis.refractions.net/docs/

--
Husam


________________________________

From: pgsql-novice-owner@postgresql.org
[mailtogsql-novice-owner@postgresql.org] On Behalf Of jorge alberto
Sent: Wednesday, October 04, 2006 8:31 PM
To: pgsql-novice@postgresql.org
Subject: [NOVICE] Interface of the R-tree in order to work with
postgresql


Hi everybody!
I'm Jorge from Peru -> South America
I'm new in the list, and this is my first post:

I want to know how can I add a new spatial access method into the
postgresql, I mean where can i find the .h that describes the
interface that a spatial access method, like the R-tree, must have in
order to work with postgresql.

I think that for me to understand how postgresql works with spatial
access methods, like the R-tree, I need to find a .h or .c to begin
reading the code, so can you tell me where to start?

I hope you can help me
thanks in advance
regards




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Thank you.

FADLD Tag
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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@sss.pgh.pa.us> wrote:
>
> "jorge alberto" <jorge.is.a.geek@gmail.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
>