On Monday 15 December 2008 22:30:19 Jonah H. Harris wrote:
> On Fri, Dec 12, 2008 at 7:55 AM, Peter Eisentraut <peter_e@gmx.net> wrote:
> > Now I have a question about the FDW C interface. The way I understand
> > it, an SQL/MED-enabled server and a FDW each have a specific API by which
> > they communicate. Supposedly, each database vendor should be able to
> > ship a binary library for its FDW and each SQL/MED-enabled server should
> > be able to load and use it. (If you don't believe in binary
> > compatibility, then I think there should at least be source-level
> > interface compatibility.)
>
> Yes, all FDWs should be similar to ODBC drivers in that they are
> self-contained and interface with the database through a defined API.
> What happens inside them should be irrelevant to PG.
What we are currently trying to figure out is the best method to introduce
extensions to the API.