53 lines
1.4 KiB
PL/PgSQL
53 lines
1.4 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_poi_point;
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DROP TRIGGER IF EXISTS trigger_refresh ON poi_point.updates;
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-- etldoc: osm_poi_point -> osm_poi_point
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CREATE OR REPLACE FUNCTION update_osm_poi_point() RETURNS VOID AS $$
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BEGIN
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UPDATE osm_poi_point
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SET subclass = 'subway'
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WHERE station = 'subway' and subclass='station';
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UPDATE osm_poi_point
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SET tags = slice_language_tags(tags) || get_basic_names(tags, geometry)
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WHERE COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL;
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END;
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$$ LANGUAGE plpgsql;
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SELECT update_osm_poi_point();
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-- Handle updates
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CREATE SCHEMA IF NOT EXISTS poi_point;
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CREATE TABLE IF NOT EXISTS poi_point.updates(id serial primary key, t text, unique (t));
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CREATE OR REPLACE FUNCTION poi_point.flag() RETURNS trigger AS $$
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BEGIN
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INSERT INTO poi_point.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
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RETURN null;
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END;
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$$ language plpgsql;
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CREATE OR REPLACE FUNCTION poi_point.refresh() RETURNS trigger AS
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$BODY$
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BEGIN
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RAISE LOG 'Refresh poi_point';
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PERFORM update_osm_poi_point();
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DELETE FROM poi_point.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_poi_point
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FOR EACH STATEMENT
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EXECUTE PROCEDURE poi_point.flag();
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CREATE CONSTRAINT TRIGGER trigger_refresh
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AFTER INSERT ON poi_point.updates
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INITIALLY DEFERRED
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FOR EACH ROW
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EXECUTE PROCEDURE poi_point.refresh();
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