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