rhkelly <rhkelly@myrealbox.com> writes:
> I was simply inquiring about what I consider to be an indispensible
> element of documentation for *any* application - i.e., the content
> and format of the files in which the application stores the data.
[ Raises eyebrow... ] I'm not aware of any complex application in which
file format details are considered an indispensable part of the user-level
documentation. Do Word, Photoshop, Outlook, etc provide that info?
Where you want to be looking is at the developer docs, eg
http://developer.postgresql.org/docs/postgres/page.html
and at the source code --- probably
src/include/storage/bufpage.h
src/include/access/htup.h
are good starting points.
regards, tom lane