[x] I have run this code in development and it appears to resolve the stated issue
[x] This PR includes tests, or tests are not required/relevant for this PR
[x] This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX
resolves #1028
Problem & Solution
https://github.com/dbt-labs/dbt-adapters/pull/173 added testing for the cross-database
cast
macro, but it is not automatically inherited by each adapter.Solution
This PR imports and uses that testing.
Checklist