Hi Andreas.
Note that the order of features in attributes table does not seems to
reflect the source order.
After sorting your dataset with sortbyexpression, try to add a
auto-incremental field and open this new output in attribute table.
Sort this attribute table by the new auto-incremental field. If the
order is good, it is not a sortbyexpression issue, but an attribute
table issue.
Regards
Arnaud Morvan
Ingénieur logiciel
Tél: +33 (0)4 58 48 20 32
Camptocamp France SAS
18 rue du Lac Saint André
Savoie Technolac - Bâtiment Le Dauphin
F-73370 Le Bourget du Lac
http://www.camptocamp.com
Le 21/11/2020 à 17:23, Bernd Vogelgesang a écrit :
Hi Andreas,
have a look at my last years issue on this
https://github.com/qgis/QGIS/issues/29794
maybe it's the same
Cheers,
Bernd
On 19.11.20 14:16, Andreas Neumann wrote:
Hi,
I have a model where at the very end before adding it to the project I was
trying to sort the result with an expression.
But: the sorting doesn't work. In the help there is the cryptic hint at
https://docs.qgis.org/3.10/de/docs/user_manual/processing_algs/qgis/vectorgeneral.html#qgisorderbyexpression
that "Be careful, it might not work as expected with some providers, the
order might not be kept every time."
Does someone know more about it? Which providers specifically do not
support sorting?
Does this statement apply to the reading provider or the writing provider?
In my case, I never got any correct sorting ...
Thanks,
Andreas
--
Andreas Neumann
QGIS.ORG board member (treasurer)
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