openmaptiles/layers/poi/poi_stop_agg.sql
Jaroslav Hanslík d49f524edd
Removed useless NULLIF calls (#1214)
`NULLIF(wikipedia, '') IS NOT NULL` replaced by `wikipedia <> ''`
https://stackoverflow.com/questions/23766084/best-way-to-check-for-empty-or-null-value
2021-09-20 11:19:24 +02:00

32 lines
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)) END AS centroid
FROM osm_poi_point
WHERE uic_ref <> ''
AND subclass IN ('bus_stop', 'bus_station', 'tram_stop', 'subway')
GROUP BY uic_ref
HAVING count(*) > 1
) /* DELAY_MATERIALIZED_VIEW_CREATION */;
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
) /* DELAY_MATERIALIZED_VIEW_CREATION */;