Jorge (and fellow Qgisers)
I am trying to create a single file that includes a point for each of
51k households in the 1901 census of Montreal. I have linked these
households to the 18k lots where they resided, as this suggests in many
cases more than household lived on a lot. I imported from
I have two layers(layer1,layer2) in postgis database where I have connect in
QGIS project.
my database have specific precision.
now I want to use from QGIS processing some algorithms like
GISDIFFERENCE(for example I know tew postgis have query for this).
but I don't know how to import the algorithm
