INSERT INTO public."glucose-import"  
  (SELECT nextval('glucose-import_id_seq'), 
          "glucose"."deviceSerialNumber",
		  "glucose"."deviceType", 
		  "glucose".units, 
		  "glucose".value, 
		  "glucose".time 
	FROM influx.glucose 
	WHERE "glucose".time >= (SELECT max(time) FROM public."glucose-import")
	);