openmaptiles/layers/poi/poi_stop_agg.sql

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1.0 KiB
SQL

DROP MATERIALIZED VIEW IF EXISTS osm_poi_stop_centroid CASCADE;
CREATE MATERIALIZED VIEW osm_poi_stop_centroid AS (
SELECT
uic_ref,
count(*) as count,
CASE WHEN count(*) > 2 THEN ST_Centroid(ST_UNION(geometry))
ELSE NULL END AS centroid
FROM osm_poi_point
WHERE
nullif(uic_ref, '') IS NOT NULL
AND subclass IN ('bus_stop', 'bus_station', 'tram_stop', 'subway')
GROUP BY
uic_ref
HAVING
count(*) > 1
);
DROP MATERIALIZED VIEW IF EXISTS osm_poi_stop_rank CASCADE;
CREATE MATERIALIZED VIEW osm_poi_stop_rank AS (
SELECT
p.osm_id,
-- p.uic_ref,
-- p.subclass,
ROW_NUMBER()
OVER (
PARTITION BY p.uic_ref
ORDER BY
p.subclass :: public_transport_stop_type NULLS LAST,
ST_Distance(c.centroid, p.geometry)
) AS rk
FROM osm_poi_point p
INNER JOIN osm_poi_stop_centroid c ON (p.uic_ref = c.uic_ref)
WHERE
subclass IN ('bus_stop', 'bus_station', 'tram_stop', 'subway')
ORDER BY p.uic_ref, rk
);
ALTER TABLE osm_poi_point ADD COLUMN IF NOT EXISTS agg_stop INTEGER DEFAULT NULL;
SELECT update_osm_poi_point_agg();