Hiyas,
Looking at wwwdevel, there's a link to "Tech Docs" on the front page (in
the middle) linking to:
http://wwwdevel.postgresql.org/docs/techdocs
Not sure if that's right or not, but it gives a 404 when clicking on.
Regards and best wishes,
Justin Clift
--
"One who sees the invisible can do the impossible."
+ Frank Gaines