Re: WIP: Rework access method interface

Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> writes:
> Shouldn't we try to move amhandler function as well along with
> amvalidate? I think moving each am's handler and validate into
> am specific new file can make this arrangement closer to what
> we have for PL's (ex. we have plpgsql_validator and plpgsql_call_
> handler in pl_handler.c and similar handler and validator functions
> for other languages in their corresponding modules).

I feel no great need to move the amhandler functions, and if we did,
I would not want to put them into the same files as the amvalidate
functions. As I said before, the latter are appendages to the AMs
that really don't have anything to do with the core index access code.
They require very different sets of #include files, for instance.

So I see the AMs as containing three separate subsets of code:
core index access/maintenance, amcostestimate, and amvalidate.
The second and third really need to be in separate files because of
#include footprint considerations, but the amhandler function can
perfectly well go in with the first group.

regards, tom lane