https://docs.localstack.cloud/user-guide/aws/redshift/

The Community edition of LocalStack provides RedShift with mocked CRUD operations, while the Pro edition provides emulation capabilities.

AFAICT there are no details of the emulation features, apart from one example of using the execute-statement api.

Does it provide a mock server that I can connect to from Python redshift_connector ?

Which Redshift SQL features are supported on the mock server?

I don't need them all to work properly, just to not raise errors for things which aren't recognised by Postgres such as setting the sort key on a table.