Re: [QGIS-Developer] Processing: sort algorithm not working?
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) ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info:https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe:https://lists.osgeo.org/mailman/listinfo/qgis-developer ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [QGIS-Developer] Processing: sort algorithm not working?
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) ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
[QGIS-Developer] Processing: sort algorithm not working?
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) ___ QGIS-Developer mailing list QGIS-Developer@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
