[PATCH] amroutine->amsupport from numeric to defined constants

While working with postgres code, I found that for gist index number of
amsupport procs are defined two times. First in src/include/access/gist.h

#define GISTNProcs 9

and second in src/backend/access/gist/gist.c

amroutine->amsupport = 9;

I think this number should be specified only once, in .h file.

So I would offer a patch for all access methods. That changes amsupport and
amstrategies from numbers to defined constants. (I've added two of them where
they were missing)

See attachment.

If it is good, I will add it to the commitfest.

--
Nikolay Shaplov
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company