[postgis-devel] Validity flag

[Sandro Santilli]

On Thu, Nov 15, 2018 at 04:26:56PM +0100, Hugo Mercier wrote:
> 
> 
> On 15/11/2018 11:55, Sandro Santilli wrote:
> 
> > 
> > I was asking just because I'm pretty sure we need more flagspace
> > for introducing validity. And we need NOT to consume all flags,
> > so that we can use the last available flag for specifying there
> > are more flags following it.
> > 
> 
> Are you suggesting a variable-length flags in postgis 3.0 header ?
> Each flag byte would have one bit that says "wait there is more" ?

Yes, also known as the "extension bit"

--strk;