Re: INSERT with a composite columnt from query

Reg Me Please wrote:
> I have two table like these:
>
> create table compo (
> t text,
> i int
> );
>
> create table tab (
> x int,
> c compo
> );
>
> Then I have a function like this:
>
> create or replace function f_compo()
> returns setof compo as $body$
> ...
> $body$ language sql stable;
>
>
> What I'd need to do is to insert the results from f_compo() into
> the table TAB along with a value x.
>
> I expected somthing like this to work:
>
> insert into tab
> select 42,row( c.* ) from f_compo() c;
>
> But I get
> ERROR: cannot cast type record to compo

The whole exercise seems a bit pointless, but you could do it like this:

INSERT INTO tab SELECT 42, CAST (c AS compo) FROM f_compo() c;

Yours,
Laurenz Albe