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
checkcontraints or foreign keys> or magically massaging other tables so that the foreign keys are> satisfied, or
ignoringdefault values, or whatever.  The next step> would then be allowing the same optimizations in INSERT.  I feel>
COPYshould 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.