Hi!
I did some experiments with cursors and found that my data doesn't get
sorted by the "order by"-statement.
Here is what I did:
----------------
CREATE TABLE ta (
a integer NOT NULL,
b integer NOT NULL
);
insert into ta values(3,1);
insert into ta values(1,2);
insert into ta values(4,3);
insert into ta values(2,4);
CREATE OR REPLACE FUNCTION testcur( OUT a integer, OUT b integer )
RETURNS SETOF RECORD AS $$
DECLARE
cur refcursor;
BEGIN
OPEN cur FOR SELECT * FROM ta ORDER BY a DESC;
LOOP
FETCH cur INTO a,b;
IF not found THEN
exit;
ELSE
RETURN NEXT;
END IF;
END LOOP;
CLOSE cur;
END;
$$ LANGUAGE 'PLPGSQL' ;
SELECT * FROM testcur();
----------------
As the result I get:
3 1
1 2
4 3
2 4
Which is not ordered by column a!?
Is this intended?
Am I doing something wrong?
I'm using Postgresql 8.3.1
Patrick
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