Re: postgres subfunction return error

Hurray, that works!

Many thanks David

CREATE OR REPLACE FUNCTION custom.pr_test_parentfunction (

v_action varchar,

out swv_refcur refcursor,

out swv_refcur2 refcursor,

out swv_refcur3 refcursor

)

RETURNS record AS

$body$

DECLARE

SWV_Action VARCHAR(50) DEFAULT Coalesce(v_Action,'1');

v_outvar1 REFCURSOR; v_outvar2 REFCURSOR; v_outvar3 REFCURSOR;

BEGIN

SELECT * INTO v_outvar1, v_outvar2, v_outvar3 FROM
custom.pr_test_subfunction(SWV_Action);

swv_refcur = v_outvar1;

swv_refcur2 = v_outvar2;

swv_refcur3 = v_outvar3;

RETURN;

END;

$body$

LANGUAGE 'plpgsql'

VOLATILE

CALLED ON NULL INPUT

SECURITY INVOKER

COST 100;

From: David Johnston [via PostgreSQL]
[mailto:ml-node+s1045698n5772627h95(at)n5(dot)nabble(dot)com]
Sent: Friday, September 27, 2013 1:43 PM
To: jonathansfl
Subject: Re: postgres subfunction return error

jonathansfl wrote

SELECT * INTO v_outvar1, v_outvar2, v_outvar3 FROM
custom.pr_test_subfunction(SWV_Action);
OPEN swv_refcur for SELECT v_outvar1;
OPEN swv_refcur2 for SELECT v_outvar2;
OPEN swv_refcur3 for SELECT v_outvar3;
RETURN;

I've never used cursors in this way so my help is more theory but:

The called-function already created the cursors. In the parent function you
should simply be able to pass them through unaltered:

SELECT * INTO v_outvar1, ...;
swv_refcur := v_outvar1;
...
...
RETURN;

You can possible simply the above and toss the temporary variables but that
should not impact the semantics.

David J.

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