[postgis-devel] Validity flag

Sandro Santilli strk at keybit.net
Mon Feb 29 09:18:37 PST 2016

On Mon, Feb 29, 2016 at 05:57:06PM +0100, Hugo Mercier wrote:

> What about putting an extra byte at the *end* of the data ?


> I know it is hacky, but ... can't find better yet.

The bit (currently proposed for "valid") could actually mean:
there are more metadata at the end. Why not. I actually like
it as a way to ensure backward compatibility.

> It could invalidate memory cache for huge geometries, but should not
> disturb existing code

What do you mean here ? Which memory cache ?


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