Re: http://www.postgresql.org/docs/8.0/static/xfunc-sql.html

On 19/8/05 4:38 pm, "Nigel Horne" <njh(at)bandsman(dot)co(dot)uk> wrote:

> On Fri, 2005-08-19 at 16:30, Adam Witney wrote:
>>> I can't work out from that how to return more than one value.
>>
>> Hi Nigel,
>>
>> Add SETOF to your function like so:
>>
>> CREATE TABLE test (id int);
>> INSERT INTO test VALUES(1);
>> INSERT INTO test VALUES(2);
>>
>> CREATE FUNCTION test_func() RETURNS SETOF integer AS '
>> SELECT id FROM test;
>> ' LANGUAGE SQL;
>
> What if one value I want to return is an integer, and another one is a
> string?

Ah you want to return a record I suppose?

CREATE TABLE test (id int, name text);
INSERT INTO test VALUES(1, 'me');
INSERT INTO test VALUES(2, 'you');

CREATE FUNCTION test_func() RETURNS SETOF record AS '
SELECT id, name FROM test;
' LANGUAGE SQL;

SELECT * FROM test_func() AS (id int, name text);

id | name
----+------
1 | me
2 | you

Cheers

Adam

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