"yy h" <hyy.database@gmail.com> writes:
> I was trying to modify the physical page layout in PostgreSQL.
Uh, why?
> I understand the source code for physical page organization is located
> at bufpage.c but I wonder what is the external interface for this
> physical page organization. Interface like InsertRecToPage,
> DeleteRecFromPage, GetAttr, GetRec, etc?
It's not as well modularized as all that. If you want to do this, it'll
cost you some significant pain, so you might first want to think hard
about what you're really trying to accomplish.
regards, tom lane