postgresql documentation for developers

On Feb 3, 2005, at 2:39 PM, Pavan Kumar Chowdary P wrote:

I am pavan working in database systems lab in Indian Institute
of
science. As my M.E project I am trying to add new join type to
postgresql.

I am searching on net for documentation for developers which
will
describe the software architecture of postgres and tell what each
structure of postgres contains and what info the functions expect as
input
etc.. which will be useful in hacking the postgresql code.

Is there any documentation of above type available? If so please
give the details.

Try starting here: http://developer.postgresql.org

and

http://developer.postgresql.org/readtext.php?src/FAQ/
FAQ_DEV.html+Developers-FAQ

John DeSoi, Ph.D.
http://pgedit.com/
Power Tools for PostgreSQL