6457419e0d
I would like to reformat all of our SQL to have a concise coding style. This makes it far easier to understand the code for a casual contributor, and lets us spot errors more easily. Most importantly, it makes it much easier to grep (search) the code because it is more likely to be in the same syntax Some key changes: * SQL keywords are always UPPERCASE, e.g. `SELECT WHEN AS END ...` * types, variables, aliases, and field names (identifiers) are always lower case * `LANGUAGE 'plpgsql'` is now `LANGUAGE plpgsql` (no quotes) * a few minor spacing/semicolon cleanups P.S. Per @TomPohys request, `TABLE` is spelled using upper case despite being a type for consistency with PG Docs. Same for `LANGUAGE SQL` vs `LANGUAGE plpgsql`.
71 lines
3.2 KiB
PL/PgSQL
71 lines
3.2 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag_transportation_name ON osm_route_member;
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-- create GBR relations (so we can use it in the same way as other relations)
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CREATE OR REPLACE FUNCTION update_gbr_route_members() RETURNS void AS
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$$
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DECLARE
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gbr_geom geometry;
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BEGIN
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SELECT st_buffer(geometry, 10000) INTO gbr_geom FROM ne_10m_admin_0_countries WHERE iso_a2 = 'GB';
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DELETE FROM osm_route_member WHERE network IN ('omt-gb-motorway', 'omt-gb-trunk');
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INSERT INTO osm_route_member (osm_id, member, ref, network)
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SELECT 0,
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osm_id,
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substring(ref FROM E'^[AM][0-9AM()]+'),
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CASE WHEN highway = 'motorway' THEN 'omt-gb-motorway' ELSE 'omt-gb-trunk' END
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FROM osm_highway_linestring
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WHERE length(ref) > 0
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AND ST_Intersects(geometry, gbr_geom)
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AND highway IN ('motorway', 'trunk');
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END;
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$$ LANGUAGE plpgsql;
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-- etldoc: osm_route_member -> osm_route_member
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CREATE OR REPLACE FUNCTION update_osm_route_member() RETURNS void AS
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$$
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BEGIN
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PERFORM update_gbr_route_members();
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-- see http://wiki.openstreetmap.org/wiki/Relation:route#Road_routes
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UPDATE osm_route_member
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SET network_type =
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CASE
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WHEN network = 'US:I' THEN 'us-interstate'::route_network_type
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WHEN network = 'US:US' THEN 'us-highway'::route_network_type
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WHEN network LIKE 'US:__' THEN 'us-state'::route_network_type
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-- https://en.wikipedia.org/wiki/Trans-Canada_Highway
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-- TODO: improve hierarchical queries using
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-- http://www.openstreetmap.org/relation/1307243
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-- however the relation does not cover the whole Trans-Canada_Highway
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WHEN
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(network = 'CA:transcanada') OR
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(network = 'CA:BC:primary' AND ref IN ('16')) OR
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(name = 'Yellowhead Highway (AB)' AND ref IN ('16')) OR
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(network = 'CA:SK:primary' AND ref IN ('16')) OR
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(network = 'CA:ON:primary' AND ref IN ('17', '417')) OR
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(name = 'Route Transcanadienne') OR
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(network = 'CA:NB:primary' AND ref IN ('2', '16')) OR
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(network = 'CA:PE' AND ref IN ('1')) OR
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(network = 'CA:NS' AND ref IN ('104', '105')) OR
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(network = 'CA:NL:R' AND ref IN ('1')) OR
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(name = 'Trans-Canada Highway')
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THEN 'ca-transcanada'::route_network_type
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WHEN network = 'omt-gb-motorway' THEN 'gb-motorway'::route_network_type
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WHEN network = 'omt-gb-trunk' THEN 'gb-trunk'::route_network_type
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END;
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END;
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$$ LANGUAGE plpgsql;
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CREATE INDEX IF NOT EXISTS osm_route_member_network_idx ON osm_route_member ("network");
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CREATE INDEX IF NOT EXISTS osm_route_member_member_idx ON osm_route_member ("member");
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CREATE INDEX IF NOT EXISTS osm_route_member_name_idx ON osm_route_member ("name");
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CREATE INDEX IF NOT EXISTS osm_route_member_ref_idx ON osm_route_member ("ref");
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SELECT update_osm_route_member();
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CREATE INDEX IF NOT EXISTS osm_route_member_network_type_idx ON osm_route_member ("network_type");
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