Feed a table function with a query

Hi,

is there any possibility to feed a "table" function with a query. foe
example

CREATE FUNCTION func(id INT) RETURNS SETOF tmp AS ...

SELECT * FROM func(<scalar>); works as expected

What i want to do is something like

SELECT * FROM func((SELECT id FROM pers WHERE name ILIKE 'w%'));

i am using 8.0 on windows

regards sepp

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