Re: [HACKERS] Help with Array Function in C language...

Thanks a lot, but I still getting an error message like this:
ERROR: cache lookup failed for type 0

What is wrong?

-----Original Message-----
From: pgsql-hackers-owner(at)postgresql(dot)org
[mailto:pgsql-hackers-owner(at)postgresql(dot)org] On Behalf Of Tom Lane
Sent: Lunes, 07 de Noviembre de 2005 05:17 p.m.
To: Cristian Prieto
Cc: pgsql-general(at)postgresql(dot)org; pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] Help with Array Function in C language...

"Cristian Prieto" <cristian(at)clickdiario(dot)com> writes:
> Datum
> test_array(PG_FUNCTION_ARGS)
> {
> ArrayType *v = PG_GETARG_ARRAYTYPE_P(1);
> Datum element;
> Oid array_type = get_array_type(v);

I think you want get_element_type, instead. And you definitely ought to
be checking for a failure result (zero).

regards, tom lane

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