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