[postgis-devel] Typmod Again

[Paul Ramsey]

That's already caught at the type level. "GEOMETRY" is planar,
"GEOGRPAHY" are geodetic. So we don't need to use typmod space for
that.

P

On Thu, Jul 23, 2009 at 12:06 AM, Olivier
Courtin<olivier.courtin at gmail.com> wrote:
> Hi,
>
>> Bloody heck, you're right... the best laid plans... well, I could
>> squeeze type down to 5 bits (32 possibilities) or srid down to 23 bits
>> (8388608 possibilities). Any preferences? (We currently only use 4
>> bits for type, so this still an improvement, and official EPSG codes
>> still don't exceed 65536.)
>
> 17 differentes types are defined in current SQL/MM spec,
> so 5 bits should be enough
>
> On the other hand, could we add a bit to be able to do the difference between
> planar metric geometries and geocentrics ones ?
> Could be realy usefull...
>
> --
> Olivier
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