kopia lustrzana https://github.com/openmaptiles/openmaptiles
87 wiersze
2.8 KiB
PL/PgSQL
87 wiersze
2.8 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_city_point;
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DROP TRIGGER IF EXISTS trigger_refresh ON place_city.updates;
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CREATE EXTENSION IF NOT EXISTS unaccent;
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CREATE OR REPLACE FUNCTION update_osm_city_point() RETURNS VOID AS $$
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BEGIN
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-- Clear OSM key:rank ( https://github.com/openmaptiles/openmaptiles/issues/108 )
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-- etldoc: osm_city_point -> osm_city_point
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UPDATE osm_city_point AS osm SET "rank" = NULL WHERE "rank" IS NOT NULL;
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-- etldoc: ne_10m_populated_places -> osm_city_point
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-- etldoc: osm_city_point -> osm_city_point
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WITH important_city_point AS (
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SELECT osm.geometry, osm.osm_id, osm.name, osm.name_en, ne.scalerank, ne.labelrank
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FROM ne_10m_populated_places AS ne, osm_city_point AS osm
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WHERE
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(
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ne.name ILIKE osm.name OR
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ne.name ILIKE osm.name_en OR
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ne.namealt ILIKE osm.name OR
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ne.namealt ILIKE osm.name_en OR
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ne.meganame ILIKE osm.name OR
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ne.meganame ILIKE osm.name_en OR
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ne.gn_ascii ILIKE osm.name OR
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ne.gn_ascii ILIKE osm.name_en OR
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ne.nameascii ILIKE osm.name OR
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ne.nameascii ILIKE osm.name_en OR
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ne.name = unaccent(osm.name)
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)
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AND osm.place IN ('city', 'town', 'village')
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AND ST_DWithin(ne.geometry, osm.geometry, 50000)
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)
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UPDATE osm_city_point AS osm
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-- Move scalerank to range 1 to 10 and merge scalerank 5 with 6 since not enough cities
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-- are in the scalerank 5 bucket
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SET "rank" = CASE WHEN scalerank <= 5 THEN scalerank + 1 ELSE scalerank END
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FROM important_city_point AS ne
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WHERE osm.osm_id = ne.osm_id;
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UPDATE osm_city_point
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SET tags = update_tags(tags, geometry)
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WHERE COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL;
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END;
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$$ LANGUAGE plpgsql;
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SELECT update_osm_city_point();
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CREATE INDEX IF NOT EXISTS osm_city_point_rank_idx ON osm_city_point("rank");
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-- Handle updates
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CREATE SCHEMA IF NOT EXISTS place_city;
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CREATE TABLE IF NOT EXISTS place_city.updates(id serial primary key, t text, unique (t));
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CREATE OR REPLACE FUNCTION place_city.flag() RETURNS trigger AS $$
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BEGIN
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INSERT INTO place_city.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
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RETURN null;
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END;
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$$ language plpgsql;
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CREATE OR REPLACE FUNCTION place_city.refresh() RETURNS trigger AS
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$BODY$
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BEGIN
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RAISE LOG 'Refresh place_city rank';
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PERFORM update_osm_city_point();
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DELETE FROM place_city.updates;
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RETURN null;
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END;
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$BODY$
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language plpgsql;
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CREATE TRIGGER trigger_flag
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AFTER INSERT OR UPDATE OR DELETE ON osm_city_point
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FOR EACH STATEMENT
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EXECUTE PROCEDURE place_city.flag();
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CREATE CONSTRAINT TRIGGER trigger_refresh
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AFTER INSERT ON place_city.updates
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INITIALLY DEFERRED
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FOR EACH ROW
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EXECUTE PROCEDURE place_city.refresh();
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