Re: Why is cast array integer[] <--> text[] is not immutable.

Thanks

I'm having trouble finding any reference to array_out and array_in in
the documentation.

Is there a way to set a different cast for an array?

Regards

On 9 December 2011 15:09, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Phil Couling <couling@gmail.com> writes:
>> I'm struggling to understand why this casts is not immutable:
>
>> integer[]::text[]
>> text[]::integer[]
>
> Because it's implemented via array_out/array_in rather than any more
> direct method, and those are marked stable because they potentially
> invoke non-immutable element I/O functions.
>
>                        regards, tom lane