Afternoon List!<div><br></div><div>I am trying to batch merge several GML files but get the following error:</div><div><b><i>Cannot open existing output data source: output.gml</i></b></div><div><br></div><div>I can read the file fine with "<b>ogrinfo output.hml output -so</b>" and everything looks normal.</div>
<div><br></div><div><font color="#ff0000">I am able to perform the operation successfully without error on <i>shapefiles from the same source.</i></font></div><div><div><br></div><div>Data is from <a href="http://geobase.ca">geobase.ca</a> (geographical place names):</div>
<div><a href="ftp://ftp2.cits.rncan.gc.ca/pub/geobase/official/cgn/250k_gml_eng/">ftp://ftp2.cits.rncan.gc.ca/pub/geobase/official/cgn/250k_gml_eng/</a></div></div><div><br></div><div><br></div><div><br></div><div>Example code:</div>
<div><b><font color="#3366ff">for f in *.gml</font></b></div><div><b><font color="#3366ff"> do ogr2ogr -f "GML" merged/output.gml -update -append ${f}</font></b></div><div><b><font color="#3366ff">done</font></b></div>
<div><br></div><div><br></div><div><br></div><div>Is there a write or read limitation in my version of GDAL or the <a href="http://www.gdal.org/ogr/drv_gml.html">GML</a> that I don't know about?</div><div><br></div><div>
<b>ogr2ogr --version</b></div><div><b>GDAL 1.8.1, released 2011/07/09</b></div><div><b><br></b></div><div><b>ogr2ogr --formats</b></div><div><b> > "GML" (read/write)</b></div><div><b><br></b></div><div>Thanks for your time and assistance,</div>
<div><br></div><div>Donovan</div>