-
-CREATE OR REPLACE FUNCTION flush_deleted_places()
- RETURNS INTEGER
- AS $$
-BEGIN
- -- deleting large polygons can have a massive effect on the system - require manual intervention to let them through
- INSERT INTO import_polygon_delete (osm_type, osm_id, class, type)
- SELECT osm_type, osm_id, class, type FROM place_to_be_deleted WHERE deferred;
-
- -- delete from place table
- ALTER TABLE place DISABLE TRIGGER place_before_delete;
- DELETE FROM place USING place_to_be_deleted
- WHERE place.osm_type = place_to_be_deleted.osm_type
- and place.osm_id = place_to_be_deleted.osm_id
- and place.class = place_to_be_deleted.class
- and place.type = place_to_be_deleted.type
- and not deferred;
- ALTER TABLE place ENABLE TRIGGER place_before_delete;
-
- -- Mark for delete in the placex table
- UPDATE placex SET indexed_status = 100 FROM place_to_be_deleted
- WHERE placex.osm_type = 'N' and place_to_be_deleted.osm_type = 'N'
- and placex.osm_id = place_to_be_deleted.osm_id
- and placex.class = place_to_be_deleted.class
- and placex.type = place_to_be_deleted.type
- and not deferred;
- UPDATE placex SET indexed_status = 100 FROM place_to_be_deleted
- WHERE placex.osm_type = 'W' and place_to_be_deleted.osm_type = 'W'
- and placex.osm_id = place_to_be_deleted.osm_id
- and placex.class = place_to_be_deleted.class
- and placex.type = place_to_be_deleted.type
- and not deferred;
- UPDATE placex SET indexed_status = 100 FROM place_to_be_deleted
- WHERE placex.osm_type = 'R' and place_to_be_deleted.osm_type = 'R'
- and placex.osm_id = place_to_be_deleted.osm_id
- and placex.class = place_to_be_deleted.class
- and placex.type = place_to_be_deleted.type
- and not deferred;
-
- -- Mark for delete in interpolations
- UPDATE location_property_osmline SET indexed_status = 100 FROM place_to_be_deleted
- WHERE place_to_be_deleted.osm_type = 'W'
- and place_to_be_deleted.class = 'place'
- and place_to_be_deleted.type = 'houses'
- and location_property_osmline.osm_id = place_to_be_deleted.osm_id
- and not deferred;
-
- -- Clear todo list.
- TRUNCATE TABLE place_to_be_deleted;
-
- RETURN NULL;
-END;
-$$ LANGUAGE plpgsql;
-