Dear all, I work with Qgis 3.4. Following to my previous message <https://lists.osgeo.org/pipermail/qgis-user/2026-January/056029.html> probably unclear. I'm taking the liberty to post a new message. With Qgis raster batch mode, for the 'expression' column, i would like to derive automatically the name of the input layer selected setted throw the input layer column :
[image: image.png] But i try to do that, the result is always NULL when i open the 'calcul by expression' window : [image: image.png] I obtain always NULL. Whatever i fill for the arguments for the layer argument : @input, @element The problem could comes from the syntax of the expression ? Thanks so much.
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