Обсуждение: returning dynamic record

Just wondering, if it is possible to do the following

create function foo() RETURNS Record(int, varchar, int)

then inside of the function return a set int, varchar, int.

Then be able to call the function

select * From foo()

instead of having to write

select * from foo() as (int, varchar, int)

or declaring a type?

nick <nick@walkerdatanet.com> writes:
> Just wondering, if it is possible to do the following
> create function foo() RETURNS Record(int, varchar, int)

OUT parameters (in reasonably recent PG releases).

regression=# create function foo (f1 out int, f2 out varchar, f3 out int) as
$$ select 42, 'foo'::varchar, 43 $$ language sql;
CREATE FUNCTION
regression=# select * from foo();
 f1 | f2  | f3
----+-----+----
 42 | foo | 43
(1 row)

            regards, tom lane

Il Wednesday 07 November 2007 06:35:55 Tom Lane ha scritto:
> nick <nick@walkerdatanet.com> writes:
> > Just wondering, if it is possible to do the following
> > create function foo() RETURNS Record(int, varchar, int)
>
> OUT parameters (in reasonably recent PG releases).
>
> regression=# create function foo (f1 out int, f2 out varchar, f3 out int)
> as $$ select 42, 'foo'::varchar, 43 $$ language sql;
> CREATE FUNCTION
> regression=# select * from foo();
>  f1 | f2  | f3
> ----+-----+----
>  42 | foo | 43
> (1 row)
>
>             regards, tom lane


Maybe

create function foo (f1 out int, f2 out varchar, f3 out int)
returns setof record as $body$
...


will return the set.


--
Reg me Please