9584f69035
* rail stations * Create 'railway' POI class with 'station' and 'halt' subclasses * Introduce subway stops as POI * Revert unwanted changes in .env and openmaptiles.yaml * Remove halt key from documentation * Distinguish aeroway and railway station, add tram_stop
29 lines
1.2 KiB
PL/PgSQL
29 lines
1.2 KiB
PL/PgSQL
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-- etldoc: layer_poi[shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="layer_poi | <z14_> z14+" ] ;
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CREATE OR REPLACE FUNCTION layer_poi(bbox geometry, zoom_level integer, pixel_width numeric)
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RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, class text, subclass text, "rank" int) AS $$
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SELECT osm_id, geometry, NULLIF(name, '') AS name,
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COALESCE(NULLIF(name_en, ''), name) AS name_en,
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COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
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poi_class(subclass, mapping_key) AS class, subclass,
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row_number() OVER (
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PARTITION BY LabelGrid(geometry, 100 * pixel_width)
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ORDER BY CASE WHEN name = '' THEN 2000 ELSE poi_class_rank(poi_class(subclass, mapping_key)) END ASC
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)::int AS "rank"
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FROM (
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-- etldoc: osm_poi_point -> layer_poi:z14_
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SELECT * FROM osm_poi_point
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WHERE geometry && bbox
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AND zoom_level >= 14
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UNION ALL
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-- etldoc: osm_poi_polygon -> layer_poi:z14_
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SELECT * FROM osm_poi_polygon
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WHERE geometry && bbox
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AND zoom_level >= 14
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) as poi_union
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ORDER BY "rank"
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;
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$$ LANGUAGE SQL IMMUTABLE;
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