Cross-schema foreign keys

[simon-sugarcrm]

The company where I work have just started using DBMate. It's working really well for us, thanks very much.

We have a single PostgreSQL database, with multiple tenants and each tenant has three schemas.

My question is about how to write cross_schema foreign keys. I'm a production DBA with a release management hat, so I'm just a user of DBMate with little/to no understanding of how it works. Many apologies for the extreme newbie nature of this, but the developer who set this up is no longer available to ask.

Quick yes/no question:
Given
1 a database with schemas named
tenantA_schema1
tenantA_schema2
tenantB_schema1
tenantB_schema2 etc, and
2 given that we have DBMate applying schema1 patches just to all the tenantX_schema1 schemas etc
should we be able to re-work the git workflow to define a foreign key on tableP in tenantA_schema1 that references tableQ in tenantA_schema2?

I'm pretty sure DBMate must be able to do this but don't want to set off on a wild goose chase.

I'm presuming the schema name is inserted into the patch code before running or does it use SET search path?

Many thanks