Problem with accesing Oracle from plperlu function when using remote pg client client.

Greetings to All!

I've tried to find solution of my problem on other pg mailing lists but without bigger effect.

I have a table A in PG. There is also table A in Oracle.
I want to import specific row from oracle to pg, so i create plperlu function

CREATE OR REPLACE FUNCTION import.ora_a_row(a_id numeric)
RETURNS dok_za AS
$BODY$

In IPL:
create_connection;
select all columns on oracle from table a where id = a_id;
returning tuple;

$BODY$
LANGUAGE 'plperlu' VOLATILE;

then i can use such function in pl/pgsql;
....
DECLARE:
var A%ROWTYPE;
BEGIN;
...
select * into var from import.ora_a_row(100);
END;...

Like you see it very, very convenient.

And it works, but only when i make "select * from import.ora_a_row(100);" from psql  on postgresql server(local client).

When i try to make that select in pgadmin or from remote client I have tns error:

TNS:could not resolve the connect identifier specified (DBD ERROR: OCIServerAttach) at line 20




I've tried with different pg servers and different perls, and differen DBI Oracle packages, so i think pg or perl versions are not causes(Of course environment variables are propably set etc.).



When I used PGADMIN 1.6 on postgresql server and left host editline blank it worked too.


Anybody ancounter this kind of problem?

I'll be grateful for any of Your help.

Regards

Tomasz