Fix SQL update logic (patch from 3.6.2)

layers/transportation_name/update_route_member.sql

@@ -0,0 +1,73 @@
+DROP TRIGGER IF EXISTS trigger_flag_transportation_name ON osm_route_member;
+
+
+-- create GBR relations (so we can use it in the same way as other relations)
+CREATE OR REPLACE FUNCTION update_gbr_route_members() RETURNS VOID AS $$
+DECLARE gbr_geom geometry;
+BEGIN
+  select st_buffer(geometry, 10000) into gbr_geom from ne_10m_admin_0_countries where iso_a2 = 'GB';
+  delete from osm_route_member where network IN('omt-gb-motorway', 'omt-gb-trunk');
+
+  insert into osm_route_member (member, ref, network)
+    (
+      SELECT hw.osm_id, substring(hw.ref from E'^[AM][0-9AM()]+'), 'omt-gb-motorway'
+      from osm_highway_linestring hw
+      where length(hw.ref)>0 and ST_Intersects(hw.geometry, gbr_geom)
+        and hw.highway IN ('motorway')
+    ) UNION (
+      SELECT hw.osm_id, substring(hw.ref from E'^[AM][0-9AM()]+'), 'omt-gb-trunk'
+      from osm_highway_linestring hw
+      where length(hw.ref)>0 and ST_Intersects(hw.geometry, gbr_geom)
+        and hw.highway IN ('trunk')
+    )
+  ;
+END;
+$$ LANGUAGE plpgsql;
+
+
+-- etldoc:  osm_route_member ->  osm_route_member
+CREATE OR REPLACE FUNCTION update_osm_route_member() RETURNS VOID AS $$
+BEGIN
+  PERFORM update_gbr_route_members();
+
+  -- see http://wiki.openstreetmap.org/wiki/Relation:route#Road_routes
+  UPDATE osm_route_member
+  SET network_type =
+      CASE
+        WHEN network = 'US:I' THEN 'us-interstate'::route_network_type
+        WHEN network = 'US:US' THEN 'us-highway'::route_network_type
+        WHEN network LIKE 'US:__' THEN 'us-state'::route_network_type
+        -- https://en.wikipedia.org/wiki/Trans-Canada_Highway
+        -- TODO: improve hierarchical queries using
+        --    http://www.openstreetmap.org/relation/1307243
+        --    however the relation does not cover the whole Trans-Canada_Highway
+        WHEN
+            (network = 'CA:transcanada') OR
+            (network = 'CA:BC:primary' AND ref IN ('16')) OR
+            (name = 'Yellowhead Highway (AB)' AND ref IN ('16')) OR
+            (network = 'CA:SK' AND ref IN ('16')) OR
+            (network = 'CA:ON:primary' AND ref IN ('17', '417')) OR
+            (name = 'Route Transcanadienne (QC)') OR
+            (network = 'CA:NB' AND ref IN ('2', '16')) OR
+            (network = 'CA:PEI' AND ref IN ('1')) OR
+            (network = 'CA:NS' AND ref IN ('104', '105')) OR
+            (network = 'CA:NL:R' AND ref IN ('1')) OR
+            (name = '	Trans-Canada Highway (Super)')
+          THEN 'ca-transcanada'::route_network_type
+        WHEN network = 'omt-gb-motorway' THEN 'gb-motorway'::route_network_type
+        WHEN network = 'omt-gb-trunk' THEN 'gb-trunk'::route_network_type
+        ELSE NULL
+      END
+  ;
+
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE INDEX IF NOT EXISTS osm_route_member_network_idx ON osm_route_member("network");
+CREATE INDEX IF NOT EXISTS osm_route_member_member_idx ON osm_route_member("member");
+CREATE INDEX IF NOT EXISTS osm_route_member_name_idx ON osm_route_member("name");
+CREATE INDEX IF NOT EXISTS osm_route_member_ref_idx ON osm_route_member("ref");
+
+SELECT update_osm_route_member();
+
+CREATE INDEX IF NOT EXISTS osm_route_member_network_type_idx ON osm_route_member("network_type");