[postgis-devel] UnknownSRID value: 0 or -1 ?

[dustymugs]

On 12/09/2011 09:35 AM, Sandro Santilli wrote:
> I've started work on testing dump/restore procedure for getting to 2.0
> and realized the data w/out a proper SRID won't come back due to
> ensure_srid_geom checks on tables insisting of the SRID being -1
> rather than 0.
>
> There's no much we can do to fix this, unless we're willing to
> drop the constraints from the user dump.
>
> For this reason I think it would be safer to get our unknown
> srid back to -1 before it's too late (srid=0 getting in dumps
> and making things even harder).
>
> If somebody has smarter ideas I'm happy to listen to them.
>

I have no smarter ideas but I prefer 0 without any real reasons.  I 
don't get the purpose of having a SRID check constraint if the 
constraint is enforcing the unknown SRID.

-bborie