[QGIS-Developer] Processing: questions on temporary files

[Nyall Dawson]

On Mon, 9 Dec 2019 at 22:20, Matthias Kuhn <matthias at opengis.ch> wrote:
>
> On 12/9/19 12:00 PM, Nyall Dawson wrote:
> > On Mon, 9 Dec 2019 at 20:10, Matthias Kuhn <matthias at opengis.ch> wrote:
> >> Thanks for the clarification Andreas, indeed there was a misunderstanding on my end.
> >>
> >> That's admittedly a pain point with GPKG, I hope this can be resolved in future versions of the spec.
> >>
> >> But let's be honest, in QGIS we are not much better yet, integration of additional geometry columns is not very polished. We have a "main" geometry column to work with and "secondary" geometry columns which can be accessed to some degree. A concept which we can tack onto GPKG (or any format with no field content limitation --  guess who just dropped out of the candidate formats) as well.
> > Yes, this is something I think we need to work on. Secondary geometry
> > fields should be exposed as geometry values, not wkt or wkb or another
> > encoded format.
> >
> > I've submitted various PRs over the years to try to implement this,
> > but none of them have been good enough to merge :P (yet!)
> >
> > Nyall
>
> I've been there too. And recently had to add yet another regex in a
> project to parse EWKT :(
>
> Let's make sure QGIS 4 will have native geometry type attributes for pg!

Does this require QGIS 4? I don't think handling of secondary geometry
values is really part of stable api (especially since every provider
does it different)

Nyall

>
> Matthias
>