postgres pg_restore append data

[dhanuj hippie <dhanuj.hippie@xxxxxxxxx>]

Hi, 

I have a pg backup created using pg_dump custom format. I'm trying to restore into a DB which already has some data, using pg_restore data-only. This fails in scenarios where same data (some rows) is present in DB as well as dump. Is there a way to ignore such rows and proceed with restoring the rest of data ? I don't want to lose the present data in DB. I need to append the backup onto current content in DB.

Thanks,

Dhanuj