[gdal-dev] GML duplicated FID

[Martin Landa]

Hi all,

I have an issue with GML generated by GeoServer. There are features
with duplicated FID:

```
OGRFeature(lucas_view):36
  gml_id (String) = lucas_view.fid--269ff1b9_177af2abc34_-36e6
  point_id (Integer) = 45502976
  nuts0 (String) = CZ
  POINT (4550000 2976000)
OGRFeature(lucas_view):36
  gml_id (String) = lucas_view.fid--269ff1b9_177af2abc34_-36e5
  point_id (Integer) = 45542918
  nuts0 (String) = CZ
  POINT (4554000 2918000)
```

This is a reason why converting such data into GPKG (using
CopyLayer()) fails with:

```
ERROR 1: failed to execute insert : UNIQUE constraint failed: layer.fid
```

Is there any way to force the GML driver to generate a unique FID
instead of guessing from  gml_id?

Thanks in advance, Martin

-- 
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa