Monu,
> I have developed a new page buffring algo for DBMS packages I want to
> implement it in postgresql but I haven't any knowlegde of postgresql code
> can any1 tell me from where I should start & which docs I will have to
> study for that.
Start by reading all of:
http://www.postgresql.org/docs/7.3/interactive/developer.html
*after* you've done that, join the PGSQL-HACKERS list.
--
Josh Berkus
Aglio Database Solutions
San Francisco