select id_number, job_number, run_number, max_areasum areasum
from
(
select id_number, job_number,run_number, sum(area_percent) AS AREASUM,
max(sum(area_percent)) over (partition by id_number) as max_areasum
from ipc_peaks
where ref_unit is not null
and peak_name is not null
and...