Re: [HACKERS] Priorities for 6.6

On Thu, Jun 03, 1999 at 11:27:14PM -0400, Bruce Momjian wrote:
> > Implementation seems easy:
> >
> > struct varlena
> > {
> > int32 vl_len;
> > char vl_dat[1];
> > };
> >
> > 1. make vl_len uint32;
> > 2. use vl_len & 0x80000000 as flag that underlying data is
> > in another place;
> > 3. put oid of external "relation" (where data is stored),
> > blocknumber and item position (something else?) to vl_dat.
> > ...
>
> Yes, it would be very nice to have this.

I hate to be fussy - normally I am just watching, but could we
*please* keep any flag like above in another field. That way, when
the size of an object reaches 2^31 we will not have legacy problems..

struct varlena
{
size_t vl_len;
int vl_flags;
caddr_t vl_dat[1];
};

(Please:)

Regards,
--
Peter Galbavy
Knowledge Matters Ltd
http://www.knowledge.com/