Bug report #551

QGIS does not allow to load themes which were created in GRASS using v.external

Added by wolfgang-qual-gmx-net - over 17 years ago. Updated almost 14 years ago.

Assignee:Lorenzo Masini
Affected QGIS version: Regression?:No
Operating System:All Easy fix?:No
Pull Request or Patch supplied: Resolution:wontfix
Crashes QGIS or corrupts data: Copied to github as #:10610


It is not possible to load GRASS-layers into QGIS, which were created using v.external. These layers can be loaded in GRASS, therefore, I consider this as a bug in QGIS. See also:

r1 http://grass.itc.it/pipermail/grassuser/2006-August/035896.html

It would be great to have this feature also in QQGIS! Best, Wolfgang


#1 Updated by Tim Sutton about 17 years ago

Moved to milestone 0.8.2 since we wont be fixing any further issues before the 0.8.1 release

#2 Updated by leolami - about 16 years ago

  • Status changed from Open to In Progress

#3 Updated by leolami - almost 16 years ago

I don't add the v.external module in QGIS because QGIS is not able to read and load in the canvas an external layer format.
I hope in developing of QGIS in this way.


#4 Updated by Paolo Cavallini almost 15 years ago

The error while attempting to load a vector created with v.external is Key column _ not found in the table 'sample_layer_name'

#5 Updated by Paolo Cavallini almost 15 years ago

But in fact the layer is loaded, so the problem is using the right connection to the database. I suggest fixing this and adding v.external command to the toolbox

#6 Updated by leolami - almost 15 years ago

You can load the external vector in QGIS but you lose the connection with the table.
The problem seems be in QGIS.

There are some problem in the adding v.external command to the toolbox because of the structure of the GRASS module (you have to add the directory separated from the name of the source file).

#7 Updated by Paolo Cavallini almost 15 years ago

  • Status changed from In Progress to Open

#8 Updated by Redmine Admin about 14 years ago

  • Resolution set to wontfix
  • Status changed from Open to Closed

The problem is described here http://trac.osgeo.org/grass/ticket/981 , it is GRASS bug, definitely it cannot be fixed in QGIS. It is more feature than a bug, certain OGR drivers do not have FID column which is necessary for vector - attributes connection.

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