CREATE TABLE IF NOT EXISTS "worldTravelCountryRegions" ( "id" serial PRIMARY KEY NOT NULL, "name" text NOT NULL, "country_code" text NOT NULL ); --> statement-breakpoint DO $$ BEGIN ALTER TABLE "worldTravelCountryRegions" ADD CONSTRAINT "worldTravelCountryRegions_country_code_worldTravelCountries_country_code_fk" FOREIGN KEY ("country_code") REFERENCES "worldTravelCountries"("country_code") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$;