On Mon, Dec 5, 2016 at 4:36 AM, dhanuj hippie <dhanuj.hip...@gmail.com> wrote:
> 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 > *The best I can advise you is this.1. Create a new database x.2. Restore the backup to the new database.3. Rename the table to something like table_old.4. Rename the primary index and any other index so that they will not be the same as ones in the original table.5. Dump table_old only -> pg_dump -t table_old x > table_old.sql6. Restore table_old to your database with your original table (table_orig).Then you can:INSERT INTO table_orig SELECT * FROM table_old WHERE your_primary_key NOT IN (SELECT your_primary_key FROM table_orig );* -- *Melvin Davidson* I reserve the right to fantasize. Whether or not you wish to share my fantasy is entirely up to you.
