[postgis-users] Understanding 3d bbox filtering support

[Daniel Baston]

>
> So... it seems that the z gets dropped eh? I see a pull request to fix it
> but it seems it has
> been closed and the associated ticket marked as "wont' fix":


Well, I think the ticket is showing that the patch represented a change in
behavior and wouldn't be backported to 2.2.  It should work as expected in
the latest stable release.

Dan

On Thu, Jan 19, 2017 at 8:14 AM, Andrea Aime <andrea.aime at geo-solutions.it>
wrote:

> On Wed, Jan 18, 2017 at 5:13 PM, Rémi Cura <remi.cura at gmail.com> wrote:
>
>> Hey,
>> I can't test right now,
>> but :
>>  - you have the same srid for object and bbox right?
>>
>
> Err... the box3d does not seem to have a srid, nor I could find a way to
> assign one.
>
>
>>  - I remember Sandro discussing this case
>>
>
> I searched in postgis-users before sending and again now, but could not
> find any.
> I've now searched in postgis-devel and found a thread you started on the
> topic instead:
> http://osgeo-org.1560.x6.nabble.com/BOX3D-strange-behaviour-td5251231.html
>
> So... it seems that the z gets dropped eh? I see a pull request to fix it
> but it seems it has
> been closed and the associated ticket marked as "wont' fix":
> https://trac.osgeo.org/postgis/ticket/3466
>
> Soo... should I do 2d filtering using && and then do the z filtering using
> ST_Zmin/ST_ZMax?
>
> Cheers
> Andrea
>
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