recursive inner trigger call

Hi guys,

i got the following problematic : i got a table called bv that have some 'entry data' and i have another column that need to be calculated and put back in the table:

here is my table:

CREATE TABLE public.bv
(
  id_bv integer NOT NULL,
  c_vmax_actuel real,
  d_capacite_barrages_new real,
  CONSTRAINT "BV_pkey" PRIMARY KEY (id_bv) 
)
WITH (
  OIDS=FALSE
);
ALTER TABLE public.bv OWNER TO postgres;

i created a trigger that do the necessary computation:

CREATE OR REPLACE FUNCTION public.store_bv() RETURNS TRIGGER AS $store_bv$
    DECLARE
        v_vmax_actuel          numeric(15,2);
    BEGIN      
    IF (TG_OP = 'UPDATE') OR (TG_OP = 'INSERT')   THEN
       
        update ed_explore."bv"  set
        c_vmax_actuel = ((d_capacite_barrages_new) / (30*86400)) ;             
    END IF;
    RETURN NEW;

    END;
$store_bv$ LANGUAGE plpgsql;

the declaration of my trigger :

CREATE   TRIGGER store_bv_trigger
after INSERT OR UPDATE  ON ed_explore.bv
    FOR EACH ROW EXECUTE PROCEDURE public.store_bv();

and now i start to insert my data:

insert into public.bv (id_bv,d_capacite_barrages_new) values (1,7324591);commit;

then the trigger got executed and goes in an infinite loop,here is the error that i got :

ERREUR:  dépassement de limite (en profondeur) de la pile
HINT:  Augmenter le paramètre « max_stack_depth » après vous être assuré que la
limite de profondeur de la pile de la plateforme est adéquate.
CONTEXT:  instruction SQL « update ed_explore."bv" set c_vmax_actuel = ((d_capacite_barrages_new) / (30*86400)) »

And thanks for you help