Bug report #19758
Processing: merge vector layers produces duplicated fid
| Status: | Open | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Processing/Core | ||
| Affected QGIS version: | 3.2.2 | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 27583 |
Description
Here's how to reproduce the bug:
1. Add the 3 layers from the attached GeoPackage (pol.gpkg)
2. Open the merge vector layers tool in Processing, choose the 3 layers and save to a temporary layer
3. The resulting layer has features with the same fid, and hence can't be saved to a new GeoPackage without manually editing the fid values
4. Alternatively if you save directly to GeoPackage (instead of using a temporary layer), the tool produces a wrong output
A similar bug happens with other tools (see #19708). This fid problem makes Processing almost unusable with GeoPackages.
Related issues
History
#1
Updated by Giovanni Manghi about 6 years ago
- Category changed from Processing/QGIS to Processing/Core
I agree this an annoying consequence of having moved to geopackage outputs by default.
#2
Updated by Jürgen Fischer about 6 years ago
- Description updated (diff)
#3
Updated by Giovanni Manghi about 6 years ago
- Related to Bug report #19998: Cannot export output of 'Points along geometry' tool as Geopackage added
#4
Updated by Andrea Giudiceandrea about 6 years ago
- Related to Bug report #19708: Processing: Join attributes by location produces duplicated fid added