Re: [PATCH 4/4] Add tests to dblink covering use of COPY TO FUNCTION

On Mon, Nov 23, 2009 at 4:20 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> pgsql-hackers had some preliminary discussions a couple months back
> on refactoring COPY to allow things like this --- see the thread
> starting here:
> http://archives.postgresql.org/pgsql-hackers/2009-09/msg00486.php
> While I don't think we arrived at any final decisions, I would like
> to know how this design fits in with what was discussed then.

This seems to be about importing/ingress, whereas this patch is about
exporting/egress...it is an interesting question on how much parsing
to do before on the ingress side before handing a row to a function
though, should we try to make these kinds of operations a bit more
symmetrical.

I did consider refactoring COPY, but since it's never clear when we
start a feature whether it is going to manifest itself as a good
upstream candidate we default to trying to make future merges with
Postgres tractable I did not take on such a large and artistic task.

fdr