Re: Bulkloading using COPY - ignore duplicates?

Peter Eisentraut writes:
> I think allowing this feature would open up a world of new
> dangerous ideas, such as ignoring check contraints or foreign keys
> or magically massaging other tables so that the foreign keys are
> satisfied, or ignoring default values, or whatever. The next step
> would then be allowing the same optimizations in INSERT. I feel
> COPY should load the data and that's it. If you don't like the
> data you have then you have to fix it first.

I agree that PostgreSQL's checks during COPY are a bonus and I
wouldn't dream of not having them. Many database systems provide a
fast bulkload by ignoring these constraits and cross references -
that's a tricky/horrid situation.

However I suppose the question is should such 'invalid data' abort the
transaction, it seems a bit drastic...

I suppose i'm not really after a IGNORE DUPLICATES option, but rather
a CONTINUE ON ERROR kind of thing.

Regards, Lee.