I'm working from a database (PostgreSQL/ PostGIS).
I created a view in QGIS of joined polylines from one table with the ST_union function.
I want to label this polylines in QGIS. So, I created 2 virtual columns with
$y expressions for the labels coordinates and configured the properties.
But, the virtual columns are not editable and I can't move the labels.
Do you have an idea ?