From: | Rodrigo E(dot) De León Plicet <rdeleonp(at)gmail(dot)com> |
---|---|
To: | dvanatta <dvanatta(at)yahoo(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Return Query with simple function |
Date: | 2008-02-24 02:56:21 |
Message-ID: | a55915760802231856r74c3519fiddc0595f8ffc8bed@mail.gmail.com |
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Thread: | |
Lists: | pgsql-general |
On 2/23/08, dvanatta <dvanatta(at)yahoo(dot)com> wrote:
> How should this function be written?
Define output parameters in the function and return SETOF RECORD, e.g.:
--- SQL ---
CREATE OR REPLACE FUNCTION
GET_FOO1(BAR INT, OUT BAZ INT, OUT ZAB INT)
RETURNS SETOF RECORD AS
$BODY$
SELECT $1, $1;
$BODY$
LANGUAGE 'SQL';
SELECT * FROM GET_FOO1(42);
baz | zab
-----+-----
42 | 42
(1 row)
--- PL/PgSQL ---
CREATE OR REPLACE FUNCTION
GET_FOO2(BAR INT, OUT BAZ INT, OUT ZAB INT)
RETURNS SETOF RECORD AS
$BODY$
BEGIN
RETURN QUERY SELECT BAR, BAR;
END;
$BODY$
LANGUAGE 'PLPGSQL';
SELECT * FROM GET_FOO2(42);
baz | zab
-----+-----
42 | 42
(1 row)
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