Re: tablespace patch

> Well, they shouldn't be using Relations, for sure.  Something based
> on knowing only RelFileNode would be appropriate.  Vadim wrote a few
> messages about this back when he was still active --- check the
> archives.
>
> In my mind a touchstone for a proper redesign of this layer is that
> the checkpoint process should not be handicapped by not being a full
> backend.  Right now, all checkpoint buffer writes happen via
> smgrblindwrt, which is a nontrivial performance loss.  Ideally the
> notion of "blind write" should go away, because you shouldn't need
> anything more than the RelFileNode and block number, which are both
> available from the shared buffer descriptor.

Hmmm...might be a bit out of my league...  I'll look into it all, but
something tells me it'll take me quite a while :)

Chris