Re: import ignoring duplicates

On Sun, May 16, 2010 at 12:38 PM, Mark Fenbers <Mark(dot)Fenbers(at)noaa(dot)gov> wrote:
> I am using psql's \copy command to add records to a database from a file.
>  The file has over 100,000 lines.  Occasionally, there is a duplicate, and
> the import ceases and an internal rollback is performed.  In other words, no
> data is imported even if the first error occurs near the end of the file.
>
> I am looking for an option/switch to tell psql (or the \copy command) to
> skip over any duplicate key constraint viloations and continue to load any
> data that doesn't violate a duplicate key constraint.  Is there such an
> option?

Sounds like you want this:

http://pgfoundry.org/projects/pgloader/

Note that copy is optimized to work in a single transaction. Breaking
those semantics WILL result in a slow load time, and there's not much
you can do about that.