[mapserver-dev] wfs attribute queries without results

[Martin Kofahl]

Hello,

while testing the current master branch regarding OGC WFS capabilities I did notice that attribute only queries do not return a result. Sample query:

<Query typeName="ns:featuretype" srsName="urn:ogc:def:crs:EPSG::4326">
 <ogc:Filter>
  <ogc:PropertyIsEqualTo>
   <ogc:PropertyName>column</ogc:PropertyName>
   <ogc:Literal>value</ogc:Literal>
  </ogc:PropertyIsEqualTo>
 </ogc:Filter>
</Query>


The for reasons behaviour is that

a) the queryRect is initialized with minx/y,maxx/y = -1, probably already in msLoadMap() -> initMap() -> msInitQuery()

b) the query is processed by FLTApplySimpleSQLFilter() using msQueryByRect() ... with queryRect's values set to -1.


So what's going wrong here? A quick qorkaround is to bypass the cases where queryrect is set to -1 in different functions: msPostGISBuildSQL(), msQueryByRect() and probably more. There should be a more sophisticated solution - any comments?

Kind regards,
Martin