I have QGIS 2.8. I open up the database manager, connect to PostGIS, and then execute a query. The resulting query has an id column, a name column, a geom column, and a membership column.
I click on the button "Load as new Layer" and then the button "Load Now!" Nothing happens after that. The layer does not appear in any layer list. I have looked at the documentation and cannot see what I am doing wrong.