[Qgis-user] null attributes in wfs response not returned anymore

[Oliver Christen]

Dear Alessandro

Thank you very much!

Best regards
Oliver

On Wed, Apr 22, 2026 at 12:08 PM Alessandro Pasotti <apasotti at gmail.com>
wrote:

> Hi,
>
> See:
> https://github.com/qgis/QGIS/issues/45243
>
>
> On Wed, Apr 22, 2026 at 11:40 AM Oliver Christen via QGIS-User
> <qgis-user at lists.osgeo.org> wrote:
> >
> > Dear all
> >
> > I observed that at least until version 3.28 of Qgis server, wfs queries
> return all attributes enabled, even when attribute values are null,
> > for example:
> >
> > <qgs:railways fid="railways.2372">
> >   <gml:boundedBy>
> >    <gml:Box srsName="EPSG:2056">
> >     <gml:coordinates cs="," ts=" ">2496713.6,1120047
> 2496904.7,1120310</gml:coordinates>
> >    </gml:Box>
> >   </gml:boundedBy>
> >   <qgs:geometry>
> >    <LineString xmlns="http://www.opengis.net/gml" srsName="EPSG:2056">
> >     <coordinates xmlns="http://www.opengis.net/gml" cs="," ts="
> ">2496904.7,1120310 2496811.4,1120210.2 2496788.3,1120183.8
> 2496773.2,1120163.6 2496757.1,1120140 2496745.7,1120121.3
> 2496733.6,1120098.4 2496722.3,1120071.8 2496717.1,1120057.2
> 2496713.6,1120047</coordinates>
> >    </LineString>
> >   </qgs:geometry>
> >   <qgs:fid>2372</qgs:fid>
> >   <qgs:osm_id>27884774</qgs:osm_id>
> >   <qgs:name xsi:nil="true"/>
> >   <qgs:type>rail</qgs:type>
> >   <qgs:geom_4326></qgs:geom_4326>
> >  </qgs:railways>
> >
> > Here we can see that "name" is returned, but is null.
> >
> > But testing with version 3.34 and newer, null attribute are completely
> absent from the wfs response,
> >
> > I checked the visual changelog of Qgis between 3.28 and 3.24, but I
> couldn't find any information about this behavior change.
> >
> > Please can someone tell me what was changed in Qgis, and if this
> behavior can be configured somehow ?
> >
> > Thank you very much
> > best regards
> > Oliver
> >
> > --
> >
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> >
> >
> > Oliver Christen
> >
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> >
> >
> >
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> >
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> >
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>
> --
> Alessandro Pasotti
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>
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