Does copy abort on a failed insertion?

["Reid Thompson" <Reid.Thompson@xxxxxxxx>]

If i have a pg_dump that is using COPY, and midway through the copy an
insert fails due to a unique constraint, will the COPY continue with the
rest of the records, or will it abort?  If it aborts, will it perform a
rollback on the inserts up to that point?

thanks,
reid

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