I am trying to make a model in the processing modeler of QGIS.
I need a step where a layer with polygons is dissolved based on two fields.
At the moment I do this manually. When I open the dissolve algorithm i can select the two fields.
In the modelbuilder version I get a drop down menu or the option to enter the fields. If I try one field, all works well, If I try two fields, the algorithm dissolves my polygonlayer as if I didn't enter any field to dissolve on.
I am almost sure there is something wrong in the notation of how I give in the two field. It is not mentioned in the help document. I must have tried any combination I can think of, but not the correct one.
Does anybody have the answer?