Added floorspace column

README.md

@@ -18,10 +18,11 @@ Please add a small reasoning around the following points for each proposed merge
 
 ####  `obm_buildings` - Main OBM Tiles information
 
-| column_name | data_type                |
-|-------------|--------------------------|
-| osm_id      | integer (primary key)    |
+| column_name | data_type                 |
+|-------------|---------------------------|
+| osm_id      | integer (primary key)     |
 | geometry    | geometry (Geometry, 4326) |
+| floorspace  | float                     |
 
 #### `migrations` - Information about database migrations
 

migrations/00005_add_column_floorspace.sql

+ALTER TABLE public.obm_buildings
+    ADD COLUMN IF NOT EXISTS floorspace FLOAT;