Re: [PROPOSAL] Move all am-related reloption code into src/backend/access/[am-name] and get rid of relopt_kind

Robert Haas wrote:
> On Tue, May 24, 2016 at 10:12 AM, Nikolay Shaplov
> <n.shaplov@postgrespro.ru> wrote:
> > While working on patch for attribute options for indexes (see
> > http://www.postgresql.org/message-id/5213596.TqFRiqmCTe@nataraj-amd64 )
> > I found out that code for reloptions is not flexible at all.
> >
> > All definitions of attoptons are stored in central catalog in
> > src/backend/access/common/reloptions.c
> > It is done this way for both heap and tuple relations, and also for all index
> > access methods that goes with source code.
> >
> > Most of the code of the indexes is now hidden behind
> > "access method" abstraction, but not the reloption code. If you grep through
> > src/backend/access/common/reloptions.c, you will find RELOPT_KIND_GIN,
> > RELOPT_KIND_BTREE, RELOPT_KIND_GIST, RELOPT_KIND_SPGIST, RELOPT_KIND_BRIN...
> >
> > This all should me moved behind "access method" abstraction...
> 
> +1 for that concept.  I'm not sure whether your implementation is good
> or bad because I haven't really looked at it, but I agree that the way
> the reloption stuff is structured is a nuisance, and injecting more
> abstraction there seems like a good thing.

As the author of the old stuff, I agree.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services