Bug report #19067

Unexpected error in the attribute table with the QGIS Union algorithm

Added by Samuel Fernando Mesa Giraldo over 2 years ago. Updated over 2 years ago.

Status:Closed
Priority:High
Assignee:-
Category:Processing/QGIS
Affected QGIS version:3.0.3 Regression?:No
Operating System:Arch Linux x64 / Windows 10 Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:Yes Copied to github as #:26897

Description

Performing an academic vector overlay exercise, I found a possible error in the result of the attribute table using the Union function with the two polygons layers of a GeoPackage database.

Here are the original layers:

The result of A U B gives the following:

Geometries with intersection should not deliver null values.

Attached is a QGIS project to replicate the results.

test_overlay_union.zip - QGIS Project test (14.6 KB) Samuel Fernando Mesa Giraldo, 2018-05-30 04:39 PM

History

#1 Updated by Nyall Dawson over 2 years ago

  • Resolution set to fixed/implemented
  • Status changed from Open to Closed

Confirmed fixed in 3.2

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