WFS GetFeature with BBOX Filter - PropertyName should not be mandatory

[adube]

When making WFS GetFeature queries using a BBOX Filter, we currently need to specify a PropertyName or else the query fails and MapServer returns an error mentioning that the filter is not valid.

If we check in the schema definition, the BBOXType PropertyName element has "minOccurs"=0, so it shouldn't be mandatory, see :  http://schemas.opengis.net/filter/1.1.0/filter.xsd

Here's a request that currently doesn't work where it should :

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" 
service="WFS" version="1.0.0" 
xsi:schemaLocation="http://www.opengis.net/wfs 
http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<wfs:Query typeName="feature:parcel">
  <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
    <ogc:BBOX>
      <gml:Box xmlns:gml="http://www.opengis.net/gml" srsName="EPSG:3785">
          <gml:coordinates decimal="." cs="," ts=" ">
            -8033496.4863128,5677373.0653376 -7988551.5136872,5718801.9346624
          </gml:coordinates>
        </gml:Box>
      </ogc:BBOX>
    </ogc:Filter>
  </wfs:Query>
</wfs:GetFeature>

The above outputs :

<?xml version='1.0' encoding="ISO-8859-1" ?>
<ServiceExceptionReport version="1.2.0" xmlns="http://www.opengis.net/ogc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/ogc 
http://schemas.opengis.net/wfs/1.0.0/OGC-exception.xsd">
  <ServiceException code="InvalidParameterValue" locator="filter">
msWFSGetFeature(): WFS server error. Invalid or Unsupported FILTER in GetFeature :
 &lt;Filter ogc=&quot;http://www.opengis.net/ogc&quot;&gt;
  &lt;BBOX&gt;
    &lt;Box gml=&quot;http://www.opengis.net/gml&quot; srsName=&
quot;EPSG:3785&quot;&gt;

      &lt;coordinates decimal=&quot;.&quot; cs=&quot;,&quot; 
ts=&quot; &quot;&gt;-8033496.4863128,5677373.0653376 
-7988551.5136872,5718801.9346624&lt;/coordinates&gt;
    &lt;/Box&gt;
  &lt;/BBOX&gt;

&lt;/Filter&gt;

  </ServiceException>
</ServiceExceptionReport>

To make it work properly, we need to specify the PropertyName :

<wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs" 
service="WFS" version="1.0.0" 
xsi:schemaLocation="http://www.opengis.net/wfs 
http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<wfs:Query typeName="feature:parcel">
  <ogc:Filter xmlns:ogc="http://www.opengis.net/ogc">
    <ogc:BBOX>
      <ogc:PropertyName>the_geom</ogc:PropertyName>
      <gml:Box xmlns:gml="http://www.opengis.net/gml" srsName="EPSG:3785">
          <gml:coordinates decimal="." cs="," ts=" ">
            -8033496.4863128,5677373.0653376 -7988551.5136872,5718801.9346624
          </gml:coordinates>
        </gml:Box>
      </ogc:BBOX>
    </ogc:Filter>
  </wfs:Query>
</wfs:GetFeature>

[ahocevar]

adube's request snippet above is WFS 1.0.0, for which the propertyName is mandatory. But the ticket is valid: WFS 1.1.0 does not require a propertyName for the BBOX filter. This ticket is somehow related to  http://trac.osgeo.org/openlayers/ticket/3415.