kopia lustrzana https://github.com/openmaptiles/openmaptiles
30 wiersze
1.2 KiB
PL/PgSQL
30 wiersze
1.2 KiB
PL/PgSQL
|
|
-- etldoc: layer_poi[shape=record fillcolor=lightpink, style="rounded,filled",
|
|
-- etldoc: label="layer_poi | <z14_> z14+" ] ;
|
|
|
|
CREATE OR REPLACE FUNCTION layer_poi(bbox geometry, zoom_level integer, pixel_width numeric)
|
|
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, tags hstore, class text, subclass text, "rank" int) AS $$
|
|
SELECT osm_id, geometry, NULLIF(name, '') AS name,
|
|
COALESCE(NULLIF(name_en, ''), name) AS name_en,
|
|
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
|
|
tags,
|
|
poi_class(subclass, mapping_key) AS class, subclass,
|
|
row_number() OVER (
|
|
PARTITION BY LabelGrid(geometry, 100 * pixel_width)
|
|
ORDER BY CASE WHEN name = '' THEN 2000 ELSE poi_class_rank(poi_class(subclass, mapping_key)) END ASC
|
|
)::int AS "rank"
|
|
FROM (
|
|
-- etldoc: osm_poi_point -> layer_poi:z14_
|
|
SELECT * FROM osm_poi_point
|
|
WHERE geometry && bbox
|
|
AND zoom_level >= 14
|
|
UNION ALL
|
|
-- etldoc: osm_poi_polygon -> layer_poi:z14_
|
|
SELECT * FROM osm_poi_polygon
|
|
WHERE geometry && bbox
|
|
AND zoom_level >= 14
|
|
) as poi_union
|
|
ORDER BY "rank"
|
|
;
|
|
$$ LANGUAGE SQL IMMUTABLE;
|