I am trying to import a shapefile via db manager in QGIS to my POSTGIS database but I get an error, that I do not know to resolve:
ERROR: function addgeometrycolumn(unknown, unknown, unknown, integer, unknown, integer) does not exist
LINE 1: SELECT AddGeometryColumn('demoschema','Bomen',NULL,31370,'MU...
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
So what do I need to do?