[gdal-dev] Issues with WFS driver

[Ari Jolma]

On 05/21/2013 12:59 PM, Even Rouault wrote:
> This is perhaps due to the WFS/GML driver running in streaming mode 
> now. It uses the schema to be able to decode the GetFeature XML 
> on-the-fly. Previously it downloaded the whole file in memory and 
> could analyze its structure without relying on the XML schema 
> (although I believe that if the schema was available, it was used, so 
> I'm not completely sure that's the explanation). You can probably 
> revert to the old behaviour by setting the environmenent variable 
> OGR_WFS_USE_STREAMING to NO. 

Another thing related to streaming mode.

I was wondering why the geometries the WFS were not being parsed by the 
client. It turns out that GDAL uses the tag "geometryProperty" by 
default (ogrgmllayer.cpp:601). The WFS I have uses the field name from 
PostGIS when replying to the DescribeFeatureType request. So I need to 
add a hack to the server to always use the "geometryProperty" tag.

This seems to be a small deficiency in GDAL; that it doesn't have the 
concept of a field name for geometries. This may limit the usability of 
GDAL as a component of a WFS.

Ari