[gdal-dev] Append a shapefile to a postgis table using the GDAL/OGR Python interface

[Even Rouault]

Le mercredi 06 juillet 2011 17:11:31, Luke Peterson a écrit :
> On Sat, Jul 24, 2010 at 10:31PM, Chaitanya kumar CH <chaitanya.ch at
> 
Hum, wait, how come can you use CopyLayer() to append to an existing table ? 
CopyLayer() is supposed to create a new layer, so I don't see how it would 
work with an existing target layer.

Actually I've just tested it to append to an existing Postgis table, and as 
expected, I get :

ERROR 1: Layer XXXXXX already exists, CreateLayer failed.
Use the layer creation option OVERWRITE=YES to replace it.

So, I don't even understand how you manage to get to the point where features 
are about to be inserted...

So I'm not sure at all the PRESERVE_FID option makes sense. Or do I miss 
something ??