"Cristian Prieto" <[EMAIL PROTECTED]> 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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