[Qgis-user] qgis_server wms SELECTION and FILTER parameters don't work

[Amedeo Fadini]

Hi all,
I need to generate a couple of small maps around point features in a
postgis table, so I've written a SQL that ouputs a wms getmap url for
each point
qgis_server does the job very well because is simple to set up styles
and group layers, but I'm not able to use the FILTER or SELECTION
parameter

when I call

myserver/cgi-bin/qgis_mapserver.fcgi?service=WMS&version=1.3.0&request=GetMap&layers=layergroup,layer1&FILTER=layer1:"gid"
= 23

or
myserver/cgi-bin/qgis_mapserver.fcgi?service=WMS&version=1.3.0&request=GetMap&layers=layergroup,layer1&SELECTION=layer1:23

I get the image with all the points of layer1 in the area, no error.
Where can I find informations about what's wrong?

Server: debian 6.04
qgis: 1.7.4

Thank-you

Amedeo Fadini