Re: Question on adding new indexes to Postgresql

Thanks. Currently I am also referring to different implementations
of an index to see the most suitable to implement. For an R+ tree
( a variant of R tree ), I have found an example implementation in
C. Does anyone know of an R+ tree implementation done with GIST
(generalized search tree)? Since a GIST structure is also available
in Postgresql.

Thanks again.

Zhen Yang

--- Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Zhen Yang <zykuak(at)yahoo(dot)com> writes:
> > What are the C interface functions in Postgresql to add indexes?
>
> You will need to study the source code for the existing index types.
> There is not much documentation other than the sources for the index
> access method APIs.
>
> regards, tom lane
>
>
>
> > From: zykuak(at)yahoo(dot)com
> > Hello, I am posting to ask for some help and suggestions.
> >
> > For a project I am doing in university, I need to add indexing
> > mechanisms to the Postgresql database (R+ tree, bitmap indexes).
> > Version of Postgresql is 7.3.3. I would like to ask how I can
> > integrate the structures and algorithms for the indexes into
> > the Postgresql DB. What are the C interface functions in Postgresql
> > to add indexes? Do I need to handle things like memory buffer
> > management, disk storage management when implementing the indexes?
> > Thanks in advance.
> >
> >
> > Zhen Yang
> >

__________________________________
Do you Yahoo!?
The New Yahoo! Shopping - with improved product search
http://shopping.yahoo.com