fabriziomello

-- https://psutil.readthedocs.io/en/latest/#psutil.Process.memory_full_info
-- Linux: 0=rss, 1=vms, 2=shared, 3=text, 4=lib, 5=data, 6=dirty, 7=uss, 8=pss, 9=swap
CREATE OR REPLACE FUNCTION get_memory_info(pid INTEGER DEFAULT NULL, memtype INTEGER DEFAULT 0)
RETURNS BIGINT
AS
$$
    import psutil
    p = psutil.Process(pid)
    return p.memory_full_info()[memtype]
$$