Modern Mexican wrote:
Is there a technical reason why an untyped result (setof / rowset) from a
function (sql or plpgsql) is not implemented ?
Something Simple:
CREATE FUNCTION foo(x int) RETURNS SETOF records AS
'SELECT t1.*, t2.* FROM t1 INNER JOIN t2 ON t1.a=t2a
WHERE WHERE t1.id=$1'
LANGUAGE SQL
So I will not have to create a TYPE every time I return a SETOF JOINED
tables or a sub-set of the columns of a table.
You can do this, but you have to specify what the type is when you call
it. There needs to be *some* type defined somewhere.
See the manuals - section 7.2.1.4 which gives the following example of
specifying what results you expect from a dblink() call.
SELECT *
FROM dblink('dbname=mydb', 'select proname, prosrc from pg_proc')
AS t1(proname name, prosrc text)
WHERE proname LIKE 'bytea%';
--
Richard Huxton
Archonet Ltd
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TIP 6: explain analyze is your friend
