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Clean update_route_member.sql (#981)

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Clean and do refactoring on `update_route_member.sql` as first step to replace materialized view osm_transportation_name_network by tables with diff update. See #892.
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Frédéric Rodrigo 2020-09-14 18:13:32 +02:00 committed by GitHub
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1 changed files with 35 additions and 31 deletions
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layers/transportation_name/update_route_member.sql
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@ -1,13 +1,12 @@
DROP TRIGGER IF EXISTS trigger_flag_transportation_name ON osm_route_member;
CREATE TABLE IF NOT EXISTS ne_10m_admin_0_bg_buffer AS
SELECT ST_Buffer(geometry, 10000)
FROM ne_10m_admin_0_countries
WHERE iso_a2 = 'GB';
-- 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
$$
DECLARE
gbr_geom geometry;
BEGIN
SELECT st_buffer(geometry, 10000) INTO gbr_geom FROM ne_10m_admin_0_countries WHERE iso_a2 = 'GB';
DELETE FROM osm_route_member WHERE network IN ('omt-gb-motorway', 'omt-gb-trunk');
INSERT INTO osm_route_member (osm_id, member, ref, network)
@ -17,12 +16,41 @@ BEGIN
CASE WHEN highway = 'motorway' THEN 'omt-gb-motorway' ELSE 'omt-gb-trunk' END
FROM osm_highway_linestring
WHERE length(ref) > 0
AND ST_Intersects(geometry, gbr_geom)
AND ST_Intersects(geometry, (SELECT * FROM ne_10m_admin_0_bg_buffer))
AND highway IN ('motorway', 'trunk');
END;
$$ LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION osm_route_member_network_type(network text, name text, ref text) RETURNS route_network_type AS
$$
SELECT CASE
WHEN network = 'US:I' THEN 'us-interstate'::route_network_type
WHEN network = 'US:US' THEN 'us-highway'::route_network_type
WHEN network LIKE 'US:__' THEN 'us-state'::route_network_type
-- https://en.wikipedia.org/wiki/Trans-Canada_Highway
-- TODO: improve hierarchical queries using
-- http://www.openstreetmap.org/relation/1307243
-- however the relation does not cover the whole Trans-Canada_Highway
WHEN
(network = 'CA:transcanada') OR
(network = 'CA:BC:primary' AND ref IN ('16')) OR
(name = 'Yellowhead Highway (AB)' AND ref IN ('16')) OR
(network = 'CA:SK:primary' AND ref IN ('16')) OR
(network = 'CA:ON:primary' AND ref IN ('17', '417')) OR
(name = 'Route Transcanadienne') OR
(network = 'CA:NB:primary' AND ref IN ('2', '16')) OR
(network = 'CA:PE' AND ref IN ('1')) OR
(network = 'CA:NS' AND ref IN ('104', '105')) OR
(network = 'CA:NL:R' AND ref IN ('1')) OR
(name = 'Trans-Canada Highway')
THEN 'ca-transcanada'::route_network_type
WHEN network = 'omt-gb-motorway' THEN 'gb-motorway'::route_network_type
WHEN network = 'omt-gb-trunk' THEN 'gb-trunk'::route_network_type
END;
$$ LANGUAGE sql IMMUTABLE
PARALLEL SAFE;
-- etldoc: osm_route_member -> osm_route_member
CREATE OR REPLACE FUNCTION update_osm_route_member() RETURNS void AS
$$
@ -31,31 +59,7 @@ BEGIN
-- see http://wiki.openstreetmap.org/wiki/Relation:route#Road_routes
UPDATE osm_route_member
SET network_type =
CASE
WHEN network = 'US:I' THEN 'us-interstate'::route_network_type
WHEN network = 'US:US' THEN 'us-highway'::route_network_type
WHEN network LIKE 'US:__' THEN 'us-state'::route_network_type
-- https://en.wikipedia.org/wiki/Trans-Canada_Highway
-- TODO: improve hierarchical queries using
-- http://www.openstreetmap.org/relation/1307243
-- however the relation does not cover the whole Trans-Canada_Highway
WHEN
(network = 'CA:transcanada') OR
(network = 'CA:BC:primary' AND ref IN ('16')) OR
(name = 'Yellowhead Highway (AB)' AND ref IN ('16')) OR
(network = 'CA:SK:primary' AND ref IN ('16')) OR
(network = 'CA:ON:primary' AND ref IN ('17', '417')) OR
(name = 'Route Transcanadienne') OR
(network = 'CA:NB:primary' AND ref IN ('2', '16')) OR
(network = 'CA:PE' AND ref IN ('1')) OR
(network = 'CA:NS' AND ref IN ('104', '105')) OR
(network = 'CA:NL:R' AND ref IN ('1')) OR
(name = 'Trans-Canada Highway')
THEN 'ca-transcanada'::route_network_type
WHEN network = 'omt-gb-motorway' THEN 'gb-motorway'::route_network_type
WHEN network = 'omt-gb-trunk' THEN 'gb-trunk'::route_network_type
END;
SET network_type = osm_route_member_network_type(network, name, ref);
END;
$$ LANGUAGE plpgsql;