Odoo Database Upgrade FAQ
2. Which database dump formats are supported by the upgrade platform?
The upgrade platform accepts a lot of different formats:
PostgreSQL custom dump, PostgreSQL tar-format, plain text sql or compressed plain text sql.
If you want to compress a plain text sql dump, you can use a variety of
gzip, zip, rar, xz, 7zip, bzip2
If you don't really know which format to choose, see question 3.
Although the upgrade platform accepts "zip (including filestore)" archives created by the Odoo database manager. The filestore part of your archive will be striped. We will only keep the database file.
So it's always better to avoid creating a "zip (including filestore)" archive if you have the possibility to do so.