Thread: code in docs gives me an error

Hi
I tried creating the function (from sec 19.3.1). But it gives me the
following error: "ERROR:  type tablename does not exist".
Any ideas of what i might be doing wrong?

CREATE FUNCTION use_many_fields(tablename) RETURNS TEXT AS '
DECLARE
    in_t ALIAS FOR $1;
BEGIN
    RETURN in_t.f1 || in_t.f3 || in_t.f5 || in_t.f7;
END;
' LANGUAGE 'plpgsql';




Thanks,
--Hicham

On Tue, 2004-10-19 at 15:21, Hicham G. Elmongui wrote:
> I tried creating the function (from sec 19.3.1). But it gives me the
> following error: "ERROR:  type tablename does not exist".
> Any ideas of what i might be doing wrong?
>
> CREATE FUNCTION use_many_fields(tablename) RETURNS TEXT AS '

You are passing a composite type for a row from the table called
"tablename"; such a table does not exist.  Use the name of a table that
actually exists (and has the fields named in the RETURN statement).

> DECLARE
>     in_t ALIAS FOR $1;
> BEGIN
>     RETURN in_t.f1 || in_t.f3 || in_t.f5 || in_t.f7;
> END;
> ' LANGUAGE 'plpgsql';

--
Oliver Elphick                                          olly@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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