On Thu, Jun 27, 2019 at 9:27 PM Paulo van Breugel <[email protected]>
wrote:
>
> Hi devs,
>
> I am trying to import a shapefile using v.in.ogr, filtering on date
> using datetime, e.g.,
>
> v.in.ogr input=myshapefile.shp layer=myshapefile output=outputlayer
> where="datm_start >= datetime('2019-01-01')"
>
> I am getting the message:
>
> ERROR 1: Undefined function 'datetime' used.
> ERROR: Error setting attribute filter 'datm_start >=
datetime('2019-01-01')'
>
> Does this mean it is not possible to use functions in v.in.ogr? Or am I
> doing somthing wrong?
The OGR shapefile driver does not support this function. You need to import
the shapefile into GRASS, using anything but the dbf driver as database
driver (default is sqlite), then try to filter with v.extract
where="datm_start >= datetime('2019-01-01')"
HTH,
Markus M
>
> Running grass gis 7.6, Linux.
>
>
> Cheers,
>
> Paulo
>
>
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