{ lib, stdenv, fetchFromGitHub, postgresql, buildPostgresqlExtension }: buildPostgresqlExtension rec { pname = "periods"; version = "1.2.3"; src = fetchFromGitHub { owner = "xocolatl"; repo = pname; rev = "v${version}"; sha256 = "sha256-97v6+WNDcYb/KivlE/JBlRIZ3gYHj68AlK0fylp1cPo="; }; meta = with lib; { description = "PostgreSQL extension implementing SQL standard functionality for PERIODs and SYSTEM VERSIONING"; homepage = "https://github.com/xocolatl/periods"; maintainers = with maintainers; [ ivan ]; platforms = postgresql.meta.platforms; license = licenses.postgresql; }; }