ALTER TABLE "application" DROP CONSTRAINT "application_registryId_registry_registryId_fk"; --> statement-breakpoint DO $$ BEGIN ALTER TABLE "application" ADD CONSTRAINT "application_registryId_registry_registryId_fk" FOREIGN KEY ("registryId") REFERENCES "public"."registry"("registryId") ON DELETE set null ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$;