On 03/05/2014 10:30 AM, Tom Lane wrote:
> Merlin Moncure <mmoncure@gmail.com> writes:
>> On Wed, Mar 5, 2014 at 9:24 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>> Also, there might be other cases besides arrays where we've embedded
>>> type OIDs in on-disk data; anyone remember?
>> composite types.
> But that's only the composite type's own OID, no? So it's not really
> a problem unless the type we wanted to move into (or out of) core was
> itself composite.
>
>
Sure, although that's not entirely impossible to imagine. I admit it
seems less likely, and I could accept it as a restriction if we
conquered the general case.
cheers
andrew