[QGIS-Developer] QGIS Server WFS 1.1.0 response XML - properties with xsi:nil="true"

[pathmapper]

-> https://github.com/qgis/QGIS/issues/45243

On 20.09.2021 12:10, pathmapper wrote:
> Hi,
> 
> for a property with NULL value, QGIS Server WFS 1.1.0 includes this
> property with xsi:nil="true" in the response XML.
> 
> I noticed this, because other WFS server software is omitting these
> properties with NULL values.
> 
> Having a dataset with lots of features and properties with NULL
> values, the data size of the XML response document increases
> significantly (loading and processing times !) with these
> xsi:nil="true" properties compared to omitting and not including them
> in the XML response.
> 
> After digging a lot trough OGC specs, mailing lists, and gh issues I
> still didn’t find an answer to the questions
> 
> a) if QGIS Server is complying to the WFS 1.1.0 spec doing so
> and
> b) why QGIS Server is doing this?
> 
> According to [1] omitting the properties “is by design, as it's a WFS
> specification“. Unfortunately the mentioned link to a thread on an OGC
> mailing list isn‘t working anymore (nabble.com shut down).
> 
> Would be great if someone can give an insight.
> 
> Cheers,
> Bjoern
> 
> [1] https://stackoverflow.com/a/25507256
> 
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