ALTER TABLE replicas
	ADD COLUMN "primary" boolean NOT NULL DEFAULT true;

ALTER TABLE workspace_proxies
	-- Adding a serial to a table without a default value will be filled as you
	-- would expect on versions of Postgres >= 9 AFAIK (which we require).
	ADD COLUMN region_id serial NOT NULL,
	ADD COLUMN derp_enabled boolean NOT NULL DEFAULT true,
	ADD CONSTRAINT workspace_proxies_region_id_unique UNIQUE (region_id);