Description:
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Description:
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Using : 
INGRES_EXT_VERSION : 1.2.1 INGRES_API_VERSION : 4
version.rel on client (web server) : II 3.0.2 (su9.us5/109)
version.rel on ingres server  machine : II 2.5/0011
(su4.us5/00) 8908
php : PHP Version 5.1.4 (and not 5.1.2 as said upper, no fresher version choosable)
Call of a procedure is alqays in error.
The same call of procedure, with the same (db,user) executes normally in sql usual interface (isql for example).

Reproduce code:
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A call  like :
ingres_query("execute procedure modif_chrono( nom_aut='BAR', rubrique='annonces:',titre='Compte-rendu',
lien='http://intranet.inrets.fr/CR_5fev2003.htm',ref='03006')
answers in error : 
Warning: ingres_query() [function.ingres-query]: Ingres error : 135186 : An attempt to place a null value in a non-nullable datatype. in ../lib/functions.inc.php on line 57

Warning: ingres_query() [function.ingres-query]: Ingres SQLSTATE : 5000A in ../lib/functions.inc.php on line 57 

Definition of the procedure :
create procedure  modif_chrono ( 
nom_aut char(30), rubrique char(32), titre varchar(120), lien varchar(200) with null, ref char(5)) as 
declare rub char(2) not null; 
chaine varchar(200) not null; 
begin 
rub = right(trim(rubrique),2); 
update "juju". chrono_note_cir 
set rubrique = :rub, auteur = :nom_aut, titre = :titre, lien = :lien 
where num = int2(right(ref,3)) and an = left(ref,2); 
end

(a bit crazy procedure, but I have an identical pb with another 4 statements procedure)