How do I provide access to certain rows that are common for all users when implementing PostgreSQL Row Level Security?

We have a multi-tenant database and this is a table in which we have implemented row-level security based on tenant_id: | tenant_id| product_id | | ----- | -------------- | | 0 | A | | 0 | B | | 1 | 1A| | 1 | 1B| | 2 | 2A| | 2 | 2B | Our requirement is that the products associated with tenant_id = 0 should be available to all tenants. Products associated with tenant_id != 0 should only be available to the relevant tenants. Is there a way to implement this using security definers? Or do we need to have separate tables?