I have a multipoint adress layer creating problems with set-returning function cannot be used.
I tried converting the layer with vector > geometry tools > multipart to signle part in QGIS and sending it back to the PostGis dB but I still get the error. I tried as well by thicking the box "create single parts instead of multiparts" when sending the layer to postgis db with db manager in qgis but the error remains. And the type of my geometry is still MultiPoint:
I need this conversion to use ST_LineLocatePoint and get the following error. ERROR: line_locate_point: 2st arg isn't a point SQL state: XX000