I have a postgres 9.2 install that doesn't have postgis installed. There's a table which contains field name "Zone" of type polygon that I'd like to visualize using QGIS.
When I try to load the table as a PostGIS layer using the Also list tables with no geometry option, the table show up in the legend. When I open up attribute editor, I can see all of the columns except the polygon. In the table view of the DB Manager, I can see the cooridnate list in the Zone column, but am still unable to load a layer from there that has zone as part of the attribute list.
Is it possible to do what I'm trying to do without dumping to an intermediate file type? Maybe some special string in the Layer Source to let me say column "Zone" is the column containing the geometry to plot?
This is another vendor's product, so schema changes and extension installations on the database side are unlikely.