[Dbix-class] Strange beaviour with bind_params for function call

[Rolf Schaufelberger]

Hi, 
I want to call a stored function  in Postgresql with several bind_parameters:

The function definition looks like:

create or replace function system.test_prices ( commentval varchar(255), delta_eigen float, delta_material float, set_active integer, paper_ids integer[] ) returns integer AS
$BODY$
DECLARE
 
BEGIN
 raise notice 'ARGS : Comment %, delta_e %, delta_m %, act %', commentval, delta_eigen, delta_material, set_active;
 insert into xx (val) values (delta_eigen) ;
 return 123;
END;
$BODY$
 LANGUAGE plpgsql;


The functions loggs the args to console and inserts some debug value  in a table;
The special thing here is, that the last arg is an Array of Integer (which is why I have to call with bind params), yet I believe that is not the problem, since calling a function  with one arg of type integer  array works fine.

My code for calling the function is:
...
my $ids = [6024];  #the integer array
my $rs= $App->schema->resultset('PriceVersion')->search({},
                { select => {'test_prices' => \[ "?, ?, ?, ?, ?::integer[]", 
	                                                                       [comment=> 'MyComment'],
                                                                               [delta_eigen =>5.0], 
                                                                               [delta_material => 10.0],
                                                                                [active=>0],
                                                                                [paper =>$ids]]},
                  as     => 'cnt'});
print $rs->first->get_column('cnt'), "\n";

Now,  running it gives me :

~/perl/xx.pl 
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
HINWEIS:  ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0
123

The function is called 28 times !!

Changing the "raise notice" to "raise exception" gives :

rs at ubuntu:	~/perl/xx.pl DBIx::Class::ResultSet::first(): DBI Exception: DBD::Pg::st execute failed: FEHLER: ARGS : Comment MyComment, delta_e 5, delta_m 10, act 0 [for Statement "SELECT TEST_PRICES( ?, ?, ?, ?, ?::integer[] ) FROM price_version me" with ParamValues: 1='MyComment', 2='5', 3='10', 4='0', 5='{"6024"}'] at /home/rs/perl/xx.pl line 37 
rs at ubuntu:

That looks quite perfect, so the syntax for binding seems to be ok. But why is the function called 28 times ??
DBIx::Class is 0.08121


Rolf Schaufelberger