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Add agg_stop indicator to transit stations (POI)

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This commit is contained in:
jirik
2017-11-09 10:42:39 +01:00
committed by Jiri Kozel
parent 1c2ce970fd
commit 543b0315b2
6 changed files with 102 additions and 4 deletions
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11
layers/poi/layer.sql
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@@ -3,7 +3,7 @@
-- etldoc: label="layer_poi | <z12> z12 | <z13> z13 | <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 $$
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, tags hstore, class text, subclass text, agg_stop integer, "rank" int) AS $$
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,
@@ -14,6 +14,7 @@ RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de
THEN NULLIF(information, '')
ELSE subclass
END AS subclass,
agg_stop,
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
@@ -35,14 +36,18 @@ RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de
UNION ALL
-- etldoc: osm_poi_polygon -> layer_poi:z12
-- etldoc: osm_poi_polygon -> layer_poi:z13
SELECT * FROM osm_poi_polygon
SELECT *,
NULL::INTEGER AS agg_stop
FROM osm_poi_polygon
WHERE geometry && bbox
AND zoom_level BETWEEN 12 AND 13
AND ((subclass='station' AND mapping_key = 'railway')
OR subclass IN ('halt', 'ferry_terminal'))
UNION ALL
-- etldoc: osm_poi_polygon -> layer_poi:z14_
SELECT * FROM osm_poi_polygon
SELECT *,
NULL::INTEGER AS agg_stop
FROM osm_poi_polygon
WHERE geometry && bbox
AND zoom_level >= 14
) as poi_union