openmaptiles/layers/place/layer.sql

100 wiersze
3.8 KiB
PL/PgSQL

-- etldoc: layer_place[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_place | <z0_3> z0-3|<z4_7> z4-7|<z8_11> z8-11| <z12_14> z12-z14+" ] ;
CREATE OR REPLACE FUNCTION layer_place(bbox geometry, zoom_level int, pixel_width numeric)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text,
name_de text, tags hstore, class text, "rank" int, capital INT, iso_a2
TEXT) AS $$
SELECT * FROM (
-- etldoc: osm_continent_point -> layer_place:z0_3
SELECT
osm_id*10, geometry, name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
'continent' AS class, 1 AS "rank", NULL::int AS capital,
NULL::text AS iso_a2
FROM osm_continent_point
WHERE geometry && bbox AND zoom_level < 4
UNION ALL
-- etldoc: osm_country_point -> layer_place:z0_3
-- etldoc: osm_country_point -> layer_place:z4_7
-- etldoc: osm_country_point -> layer_place:z8_11
-- etldoc: osm_country_point -> layer_place:z12_14
SELECT
osm_id*10, geometry, name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
'country' AS class, "rank", NULL::int AS capital,
iso3166_1_alpha_2 AS iso_a2
FROM osm_country_point
WHERE geometry && bbox AND "rank" <= zoom_level + 1 AND name <> ''
UNION ALL
-- etldoc: osm_state_point -> layer_place:z0_3
-- etldoc: osm_state_point -> layer_place:z4_7
-- etldoc: osm_state_point -> layer_place:z8_11
-- etldoc: osm_state_point -> layer_place:z12_14
SELECT
osm_id*10, geometry, name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
'state' AS class, "rank", NULL::int AS capital,
NULL::text AS iso_a2
FROM osm_state_point
WHERE geometry && bbox AND
name <> '' AND
("rank" + 2 <= zoom_level) AND (
zoom_level >= 5 OR
is_in_country IN ('United Kingdom', 'USA', 'Россия', 'Brasil', 'China', 'India') OR
is_in_country_code IN ('AU', 'CN', 'IN', 'BR', 'US'))
UNION ALL
-- etldoc: osm_island_point -> layer_place:z12_14
SELECT
osm_id*10, geometry, name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
'island' AS class, 7 AS "rank", NULL::int AS capital,
NULL::text AS iso_a2
FROM osm_island_point
WHERE zoom_level >= 12
AND geometry && bbox
UNION ALL
-- etldoc: osm_island_polygon -> layer_place:z8_11
-- etldoc: osm_island_polygon -> layer_place:z12_14
SELECT
osm_id*10, geometry, name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
'island' AS class, island_rank(area) AS "rank", NULL::int AS capital,
NULL::text AS iso_a2
FROM osm_island_polygon
WHERE geometry && bbox AND
((zoom_level = 8 AND island_rank(area) <= 3)
OR (zoom_level = 9 AND island_rank(area) <= 4)
OR (zoom_level >= 10))
UNION ALL
-- etldoc: layer_city -> layer_place:z0_3
-- etldoc: layer_city -> layer_place:z4_7
-- etldoc: layer_city -> layer_place:z8_11
-- etldoc: layer_city -> layer_place:z12_14
SELECT
osm_id*10, geometry, name, name_en, name_de,
tags,
place::text AS class, "rank", capital,
NULL::text AS iso_a2
FROM layer_city(bbox, zoom_level, pixel_width)
ORDER BY "rank" ASC
) AS place_all
$$ LANGUAGE SQL IMMUTABLE;