>Not like that, use the execute command inside your function.
>Here is the description and example.
>http://www.postgresql.org/docs/8.0/static/plpgsql-statements.html
>
that was what I tried before the PREPARE EXECUTE example and it did not
work.
so i will try it again
*** snippet ***
CREATE FUNCTION recurs.scan(p_start INTEGER) RETURNS SETOF recurs.tree AS $$
DECLARE tmp RECORD;
BEGIN
EXECUTE 'CREATE TEMP TABLE recurs_temp (id INT, parent_id INT, label
TEXT)';
INSERT INTO recurs_temp SELECT * FROM recurs.tree WHERE id = p_start; --
first node EXECUTE recurs.walk(p_start); -- create tree FOR tmp IN SELECT * FROM recurs_temp LOOP RETURN NEXT tmp; END
LOOP;
EXECUTE 'DROP TABLE recurs_temp';
RETURN;
END; $$
LANGUAGE plpgsql;
****
and the output ...
****
recurs=# SELECT * FROM recurs.scan(1);
id | parent_id | label
----+-----------+----------- 1 | | 1 4 | 2 | 1.1.1 5 | 2 | 1.1.2 6 | 2 | 1.1.3 7 |
2 | 1.1.4 8 | 2 | 1.1.5
11 | 10 | 1.1.6.2
13 | 12 | 1.1.6.3.1
12 | 10 | 1.1.6.3
10 | 9 | 1.1.6.1 9 | 2 | 1.1.6 2 | 1 | 1.1
14 | 3 | 1.2.1
15 | 3 | 1.2.2
16 | 3 | 1.2.3 3 | 1 | 1.2
(16 rows)
recurs=# \dt
No relations found.
recurs=# SELECT * FROM recurs.scan(1);
ERROR: relation with OID 2084590 does not exist
KONTEXT: SQL statement "INSERT INTO recurs_temp SELECT * FROM recurs.tree
WHERE id = $1 "
PL/pgSQL function "scan" line 6 at SQL statement
recurs=# \dt
No relations found.
****
so i dont know what went wrong now ...
i am using Postgres 8.0.3 on Windows XP
nevertheless thanx for your help
>
>--Imad
>www.EnterpriseDB.com
>
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