[GRASS-user] partial vector copy to smaller territory

[Markus Neteler]

On Mon, Nov 5, 2018 at 2:32 PM Frank David <frank.david at geophom.fr> wrote:
> Le 02/11/2018 à 22:27, Markus Metz a écrit :
> On Fri, Nov 2, 2018 at 6:32 PM Frank David <frank.david at geophom.fr> wrote:
> > Le 02/11/2018 à 14:43, Markus Metz a écrit :
> > On Fri, Nov 2, 2018 at 11:58 AM Frank David <frank.david at geophom.fr> wrote:
> > > Le 31/10/2018 à 20:57, Markus Metz a écrit :
> > > On Wed, Oct 31, 2018 at 1:39 PM Frank David <frank.david at geophom.fr> wrote:
...
> > > > Thanks for your reply. It took almost one hour to extract my area (I guess because of topology).
...
> I'm trying to do again the operation on local machine.
...
> v.extract --overwrite --verbose input=CLC12_FR_RGF at PERMANENT type=area where=CODE_12 IN (111,112,121,311,312,313,324) output=CLC12_FR_RGF_BOISBATI at PERMANENT
> Loading categories from table <CLC12_FR_RGF>...
> DBMI-DBF
...

--> the use of the DBF driver is the reason why it is so slow at your end.
As soon as you switch to the SQLite backend (see Markus Metz'
suggestion from today), it will be much faster.

Just for clarification,

markusN