Re: [SQL] functions are returns columns

[Michele Petrazzo - Unipex srl]

Pavel Stehule wrote:

CREATE FUNCTION getfoo(int) RETURNS foo AS $$ SELECT fooid, foosubid
FROM foo WHERE fooid = $1 LIMIT 1; $$ LANGUAGE SQL;

this return only one value, I need all the values that return the query

or

CREATE FUNCTION getfoo(int) RETURNS SETOF foo AS $$ SELECT fooid,
foosubid FROM foo WHERE fooid = $1; $$ LANGUAGE SQL;

this create the same error:
ERROR:  return type mismatch in function declared to return foo
DETAIL:  Final SELECT returns too few columns.
CONTEXT:  SQL function "getfoo

I try with:
CREATE FUNCTION getfoo (IN int, OUT int, OUT int) AS $$
   SELECT fooid, foosubid FROM foo WHERE fooid = $1;
$$ LANGUAGE SQL;

but only one row returned...

Looking for other tips!

Thanks,
Michele

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