kopia lustrzana https://github.com/openmaptiles/openmaptiles
52 wiersze
1.6 KiB
PL/PgSQL
52 wiersze
1.6 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_island_polygon;
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DROP TRIGGER IF EXISTS trigger_refresh ON place_island_polygon.updates;
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-- etldoc: osm_island_polygon -> osm_island_polygon
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CREATE OR REPLACE FUNCTION update_osm_island_polygon() RETURNS VOID AS $$
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BEGIN
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UPDATE osm_island_polygon SET geometry=ST_PointOnSurface(geometry) WHERE ST_GeometryType(geometry) <> 'ST_Point';
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UPDATE osm_island_polygon
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SET tags = delete_empty_keys(tags) || get_basic_names(tags, geometry)
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WHERE COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL;
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ANALYZE osm_island_polygon;
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END;
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$$ LANGUAGE plpgsql;
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SELECT update_osm_island_polygon();
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-- Handle updates
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CREATE SCHEMA IF NOT EXISTS place_island_polygon;
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CREATE TABLE IF NOT EXISTS place_island_polygon.updates(id serial primary key, t text, unique (t));
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CREATE OR REPLACE FUNCTION place_island_polygon.flag() RETURNS trigger AS $$
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BEGIN
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INSERT INTO place_island_polygon.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
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RETURN null;
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END;
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$$ language plpgsql;
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CREATE OR REPLACE FUNCTION place_island_polygon.refresh() RETURNS trigger AS
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$BODY$
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BEGIN
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RAISE LOG 'Refresh place_island_polygon';
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PERFORM update_osm_island_polygon();
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DELETE FROM place_island_polygon.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_island_polygon
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FOR EACH STATEMENT
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EXECUTE PROCEDURE place_island_polygon.flag();
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CREATE CONSTRAINT TRIGGER trigger_refresh
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AFTER INSERT ON place_island_polygon.updates
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INITIALLY DEFERRED
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FOR EACH ROW
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EXECUTE PROCEDURE place_island_polygon.refresh();
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