Re: Function returning SETOF using plpythonu

Dnia Fri, 26 Jan 2007 17:24:52 +0000, Luís Sousa napisał(a):

> Hi,
>
> Is it possible to return rows from a function written in plpythonu using
> SETOF?
>
> Example:
> CREATE FUNCTION "test_python_setof"()
> RETURNS SETOF text AS '
> records=plpy.execute("SELECT name FROM interface");
> return records
> ' LANGUAGE 'plpythonu';
>
> With this code is returning the object from the execution:
> <PLyResult object at 0xb703e458>

plpy.execute returns dictionary, and you need a list. You may try this:

CREATE FUNCTION "test_python_setof"()
RETURNS SETOF text AS '
records=plpy.execute("SELECT name FROM interface");
return [ (r["name"]) for r in records]
' LANGUAGE 'plpythonu';

--
| And Do What You Will be the challenge | http://apcoln.linuxpl.org
| So be it in love that harms none | http://biznes.linux.pl
| For this is the only commandment. | http://www.juanperon.info
`---* JID: Aragorn_Vime(at)jabber(dot)org *---' http://www.naszedzieci.org