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Distinguish type of information point (POI)

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jirik
2017-11-09 10:31:37 +01:00
committed by Jiri Kozel
parent d300dbca48
commit 1c2ce970fd
3 changed files with 17 additions and 5 deletions
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13
layers/poi/layer.sql
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@@ -5,10 +5,15 @@
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,
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,
CASE
WHEN subclass = 'information'
THEN NULLIF(information, '')
ELSE subclass
END AS 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