7e9a6812d7
Closes #1082 This PR moves the aerodrome/aerodrome_type consolidation (via template) into the lower-level `osm_aerodrome_label_point` table, and creates a partial index on class `international` for airports with an `iata` code. The presence of an `iata` code is more significant than an `icao` code which exists at many smaller, general aviation airport. Therefore, `international` + `iata` should be a sufficient filter. Zoom 8 international airports in the NYC area (blue dots):  Zoom 10 in the same area: 
104 lines
3.0 KiB
PL/PgSQL
104 lines
3.0 KiB
PL/PgSQL
DROP TRIGGER IF EXISTS trigger_flag ON osm_aerodrome_label_point;
|
|
DROP TRIGGER IF EXISTS trigger_store ON osm_aerodrome_label_point;
|
|
DROP TRIGGER IF EXISTS trigger_refresh ON aerodrome_label.updates;
|
|
|
|
-- Partial index for zoom 8/9 queries
|
|
CREATE INDEX IF NOT EXISTS osm_aerodrome_label_point_type_partial_idx
|
|
ON osm_aerodrome_label_point USING gist (geometry)
|
|
WHERE aerodrome_type = 'international'
|
|
AND iata <> '';
|
|
|
|
UPDATE osm_aerodrome_label_point SET aerodrome_type=(
|
|
CASE
|
|
%%FIELD_MAPPING: class %%
|
|
ELSE 'other' END
|
|
);
|
|
|
|
CREATE SCHEMA IF NOT EXISTS aerodrome_label;
|
|
|
|
CREATE TABLE IF NOT EXISTS aerodrome_label.osm_ids
|
|
(
|
|
osm_id bigint
|
|
);
|
|
|
|
-- etldoc: osm_aerodrome_label_point -> osm_aerodrome_label_point
|
|
CREATE OR REPLACE FUNCTION update_aerodrome_label_point(full_update boolean) RETURNS void AS
|
|
$$
|
|
UPDATE osm_aerodrome_label_point
|
|
SET geometry = ST_Centroid(geometry)
|
|
WHERE (full_update OR osm_id IN (SELECT osm_id FROM aerodrome_label.osm_ids))
|
|
AND ST_GeometryType(geometry) <> 'ST_Point';
|
|
|
|
UPDATE osm_aerodrome_label_point
|
|
SET tags = update_tags(tags, geometry)
|
|
WHERE (full_update OR osm_id IN (SELECT osm_id FROM aerodrome_label.osm_ids))
|
|
AND COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL
|
|
AND tags != update_tags(tags, geometry);
|
|
$$ LANGUAGE SQL;
|
|
|
|
SELECT update_aerodrome_label_point(true);
|
|
|
|
-- Handle updates
|
|
|
|
CREATE OR REPLACE FUNCTION aerodrome_label.store() RETURNS trigger AS
|
|
$$
|
|
BEGIN
|
|
IF (tg_op = 'DELETE') THEN
|
|
INSERT INTO aerodrome_label.osm_ids VALUES (OLD.osm_id);
|
|
ELSE
|
|
INSERT INTO aerodrome_label.osm_ids VALUES (NEW.osm_id);
|
|
END IF;
|
|
RETURN NULL;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE TABLE IF NOT EXISTS aerodrome_label.updates
|
|
(
|
|
id serial PRIMARY KEY,
|
|
t text,
|
|
UNIQUE (t)
|
|
);
|
|
CREATE OR REPLACE FUNCTION aerodrome_label.flag() RETURNS trigger AS
|
|
$$
|
|
BEGIN
|
|
INSERT INTO aerodrome_label.updates(t) VALUES ('y') ON CONFLICT(t) DO NOTHING;
|
|
RETURN NULL;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE OR REPLACE FUNCTION aerodrome_label.refresh() RETURNS trigger AS
|
|
$$
|
|
DECLARE
|
|
t TIMESTAMP WITH TIME ZONE := clock_timestamp();
|
|
BEGIN
|
|
RAISE LOG 'Refresh aerodrome_label';
|
|
PERFORM update_aerodrome_label_point(false);
|
|
-- noinspection SqlWithoutWhere
|
|
DELETE FROM aerodrome_label.osm_ids;
|
|
-- noinspection SqlWithoutWhere
|
|
DELETE FROM aerodrome_label.updates;
|
|
|
|
RAISE LOG 'Refresh aerodrome_label done in %', age(clock_timestamp(), t);
|
|
RETURN NULL;
|
|
END;
|
|
$$ LANGUAGE plpgsql;
|
|
|
|
CREATE TRIGGER trigger_store
|
|
AFTER INSERT OR UPDATE OR DELETE
|
|
ON osm_aerodrome_label_point
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE aerodrome_label.store();
|
|
|
|
CREATE TRIGGER trigger_flag
|
|
AFTER INSERT OR UPDATE OR DELETE
|
|
ON osm_aerodrome_label_point
|
|
FOR EACH STATEMENT
|
|
EXECUTE PROCEDURE aerodrome_label.flag();
|
|
|
|
CREATE CONSTRAINT TRIGGER trigger_refresh
|
|
AFTER INSERT
|
|
ON aerodrome_label.updates
|
|
INITIALLY DEFERRED
|
|
FOR EACH ROW
|
|
EXECUTE PROCEDURE aerodrome_label.refresh();
|