[QGIS-Developer] Processing: questions on temporary files

[Régis Haubourg]

Le ven. 6 déc. 2019 à 14:19, Matthias Kuhn <matthias at opengis.ch> a écrit :

> Hi Richard
> [..]
> Other proposals are very welcome as well. I don't insist on GeoPackage.
> All I do is being a bit skeptic that rolling our own format will
> magically solve problems that one hundred other formats did not solve :-)
>

Wise words. I totally agree.



Le ven. 6 déc. 2019 à 14:19, Matthias Kuhn <matthias at opengis.ch> a écrit :

> Hi Richard
>
> On 12/6/19 2:07 PM, Richard Duivenvoorde wrote:
> > On 06/12/2019 07.58, Matthias Kuhn wrote:
> >> On 12/6/19 7:52 AM, Alexander Bruy wrote:
> >>> пт, 6 груд. 2019 о 08:44 Matthias Kuhn <matthias at opengis.ch> пише:
> >>>> Meanwhile, why not use a well known spatial data file format?
> >>> I can be wrong, but using spatial data formats can be lossy in some
> >>> cases,
> >>> e.g. shapefile/dbf has limits for the field name length and field
> >>> length. Some
> >>> other formats may lack support for some datatypes, like datetime etc.
> >>>
> >>> Of course is there is a format which allow fast and lossless storage
> >>> we should
> >>> use it
> >> I think GeoPackage should be fairly stable for this kind of usage.
> > Well, yes, may be, but given I've seen some issue (locks/crashes etc
> > etc) with GeoPackages, and myself having issue with true
> > DateTime/TimeZones's in it... I thought to propose an alternative :-)
>
> Since these files are created as an output and no concurrent access is
> expected, I don't think there's a risk for locking issues here.
>
> For DateTime/TimeZones etc, are we sure we will be in a better situation
> with "our own" serialized format?
>
> > My impression is that the community is experiencing some drawbacks with
> > GeoPackage/SQLite, but maybe I'm wrong.
>
> Other proposals are very welcome as well. I don't insist on GeoPackage.
> All I do is being a bit skeptic that rolling our own format will
> magically solve problems that one hundred other formats did not solve :-)
>
> Regards
>
> Matthias
>
> >
> > Regards,
> >
> > Richard Duivenvoorde
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