Merge pull request #418 from rustprooflabs/add-indexes-routing-tables

Add missing indexes and comments to new routing objects

Author: rustprooflabs

db/deploy/routing_functions.sql

@@ -197,20 +197,19 @@ BEGIN
         FROM unsplit_lines
     ;
 
-    COMMENT ON TABLE {schema_name}.routing_road_edge IS 'OSM road data setup for edges for routing for motorized travel';
+    COMMENT ON TABLE {schema_name}.routing_road_edge IS 'OpenStreetMap road data prepared as the edge network for pgRouting.';
     ALTER TABLE {schema_name}.routing_road_edge
         ADD edge_id BIGINT NOT NULL GENERATED ALWAYS AS IDENTITY PRIMARY KEY;
     ALTER TABLE {schema_name}.routing_road_edge
         ADD source BIGINT;
     ALTER TABLE {schema_name}.routing_road_edge
         ADD target BIGINT;
 
-    /*
-    ALTER TABLE {schema_name}.routing_road_edge
-        ADD CONSTRAINT uq_routing_road_edges_parent_id_sub_id
-        UNIQUE (parent_id, sub_id)
+    CREATE INDEX gix_{schema_name}_routing_road_edge
+        ON {schema_name}.routing_road_edge
+        USING GIST (geom)
     ;
-    */
+
     RAISE NOTICE 'routing_osm_road_edge table created';
     RAISE WARNING 'Not adding a unique constraint that should exist... data cleanup needed.';
 
@@ -222,6 +221,11 @@ BEGIN
     ;
     RAISE NOTICE 'routing_osm_road_vertex table created';
 
+    CREATE INDEX gix_{schema_name}_routing_road_vertex
+        ON {schema_name}.routing_road_vertex
+        USING GIST (geom)
+    ;
+
     --  Update source column from out_edges
     WITH outgoing AS (
         SELECT id AS source
@@ -249,8 +253,12 @@ BEGIN
     ;
 
 
-    ANALYZE {schema_name}.routing_road_vertex;
     ANALYZE {schema_name}.routing_road_edge;
+    ANALYZE {schema_name}.routing_road_vertex;
+
+    COMMENT ON TABLE {schema_name}.routing_road_vertex IS 'Routing vertex data. These points can be used as the start/end points for routing the edge network in {schema_name}.routing_road_edge..';
 
 END $$;
 
+
+COMMENT ON PROCEDURE {schema_name}.routing_prepare_roads_for_routing IS 'Creates the {schema_name}.routing_road_edge and {schema_name}.routing_road_vertex from the {schema_name}.road_line input data';