Hello,
Christopher Kings-Lynne wrote:
>
> > Look at Metabase implementation. Metabase comes with a driver
> > conformance test that verifies if features like this work properly in
> > all supported databases. Don't you think that I would release a version
> > of Metabase that would not pass that test if all databases?
> >
> > The application needs to hint it as it is something that does not change
> > at runtime, so there is no penalty of figuring that by querying the
> > database server and some database do not provide a way to tell you which
> > fields are the primary key.
>
> OK, so it's not a simulation of the MySQL syntax - MySQL requires no hints.
No, but the functionality is the same. MySQL ignores the hints because
SQL REPLACE works as intended without the hints.
> I've looked thru the code and yeah, basically that's what you have to do, so
> long as you can get the app programmer to tell you in the code what the
> primary keys are. For a postgres implementation, it's more difficult.
It is required. If the programmer does not tell which fields are the
keys, the function will fail with an error stating that.
> BTW, there's no documentation anywhere in your code - makes it a bit
> difficult to see what's going on...
Erm.... there is 248K HTML document that details all about that function
the whole Metabase API. :-)
Regards,
Manuel Lemos