Merge vector layers algorithm fails when ID fields have different data type (Integer instead of Integer64) #28730
Labels
Bug
Either a bug report, or a bug fix. Let's hope for the latter!
Processing
Relating to QGIS Processing framework or individual Processing algorithms
Author Name: Carolyn Krause (Carolyn Krause)
Original Redmine Issue: 20911
Affected QGIS version: 3.4.3
Redmine category:processing/core
I ran the Merge vector layers algorithm on three multipolygon polygon shapefiles. The algorithm completely failed to create a merged layer. The log is as follows:
This is inconsistent with the algorithm description, which says
It seems like QGIS should be able to combine an integer field with an integer64 field, but even if it can't it should still merge the layers, and put the incompatible attributes in two separate ID fields, renaming one of them if necessary.
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