I have 1,366 districts each of which has up to 300 sub-districts. These are all held in a GeoPackage, but each district is a separate layer.
What I need to do next is to iterate through each layer and apply MULTIPART TO SINGLEPART (and other operations) to the sub-districts.
I will need to this in Graphical Modeller.
So far, I have only been able to address the first layer in the GeoPackage. How do I loop through all the layers in the GeoPackage?
QGIS 3.10.3 A Coruna Window 10 (64-bit)