Vaibhav Kaushal <vaibhavkaushal123(at)gmail(dot)com> wrote:
> please show me the way, at least to the terms which you people
> use when developing.
You should probably start with this page, and follow its links:
http://www.postgresql.org/developer/
> I think its time I move on to the development section of the 9
> series of the DB. Am I right?
There's really no such things as a "9 series". You need to
understand the version numbering better:
http://www.postgresql.org/support/versioning
> what happens from the moment I hit enter on PSQL after a command
> to the results being displayed
http://developer.postgresql.org/pgdocs/postgres/index.html
http://www.postgresql.org/developer/ext.backend.html
> where are the functions located in the source tree.
http://www.postgresql.org/developer/ext.backend_dirs.html
Those links should get you started....
-Kevin