Re: temporary table / recursion

>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
>
>---------------------------(end of broadcast)---------------------------
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