PgAccess and arrays

It seems that pgAccess has as much trouble as I have with arrays ...
and perhaps more since I can't even run the queries below in it.

Does anyone have information on those damned arrays ?

Here is the text of a message I have posted on NOVICE
without success up to now.

********************************

I'd like to make some selections on values in arrays.
I know I could use a more 'SQL-correct' way to achieve this.
(create another table, link it to the first one and so on.)
But I was playing with arrays and I was wondering ...

I give an exemple to make my question clear (I hope)

let's say I store some values in a 2 dim array :

create table myfunction (
id int4,
name text,
args text[][]);

insert into myfunction
values( 1,
'func1',
'{{"key1", "value1"}, {"key2", "value2"}}');

insert into myfunction
values( 2,
'func2',
'{{"key1", "value1"}, {"key2", "value5"}, {"key3",
"value2"}}');

everything's OK.

I can store my values.
I can retrieve them :
select args from myfunction where name = 'func1';
or
select myfunction.args[1][2] where id = 2;
or even
select myfunction.args[1:1][1:2] where id = 2;
with some trial & errors it works.

But I can't manage to look into myfunction.args,
I mean something like
select name from myfunction
where myfunction.args [][2] = 'value2';
or
select name from myfunction
where myfunction.args ~~ '%value2%';
if I don't know where is value2 in my array (if it exists).

Which operators can I use ?
How can I inspect an array-field ?

Any information on arrays would be welcome.

--
Spirou
Un club Linux pour les Carolos -->
http://carolo.net/carolinux/index.html