Thanks for checking, always good to understand why things happen as they do. One of the workarounds will do for me, so I'll use them in my application. Arno -- View this message in context: http://osgeo-org.1560.x6.nabble.com/SetAttributeFilter-and-OSM-tp5096352p5096417.html Sent from the GDAL - Dev mailing list archive at Nabble.com.