[GRASSLIST:3623] Re: Fwd: grass5.7 v.external and postgis layer

[Radim Blazek]

Currently it only works if the table in PostGIS has column 
'ogc_fid' (integer) probably with more restrictions.
But such column should be created by v.out.ogr I think. 

Radim

On Friday 04 June 2004 21:20, giuseppe wrote:
> Hi All.
>  I have tried to use v.external on a postgis layer created from a grass
>  vector layer with v.out.ogr:
>
> GRASS 5.7.-cvs:~ > v.out.ogr  input=nuovo  dsn=PG:dbname=WGS84_sele
> layer=new format=PostgreSQL
>
> Linking with v.external look good:
> GRASS 5.7.-cvs:~ > v.external dsn="PG:dbname=WGS84" output=new_link_pg
> layer=new
>
> Building topology ...
> Feature:    1
> Topology was built.
> Number of nodes     :   2
> Number of primitives:   1
> Number of points    :   0
> Number of lines     :   1
> Number of boundaries:   0
> Number of centroids :   0
> Number of areas     :   0
> Number of isles     :   0
>
>
> but when i try to display the vector with d.vect I have an error:
>
> GRASS 5.7.-cvs:~ > d.vect map=new_link_pg color=0:0:0 lcolor=0:0:0
> fcolor=170:170:170 display=shape type=point,line,boundary,centroid,area
> icon=basic/cross size=5 lsize=8
> ERROR: Cannot read feature, FID = 0.
>
>
>
>
> USED SOFTWARE
> grass57_exp_2004_05_24
> gdal-cvs-20040530
> postgis 0.8.2
> postgresql7.4.1
>
> Have I wrong or forget something?
>
> Many thanks Giuseppe.
>
> -------------------------------------------------------