-- etldoc: layer_park[shape=record fillcolor=lightpink, style="rounded,filled", -- etldoc: label="layer_park | z6 | z7 | z8 | z9 | z10 | z11 | z12| z13| z14+" ] ; CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int, pixel_width numeric) RETURNS TABLE(osm_id bigint, geometry geometry, class text, name text, name_en text, name_de text, tags hstore, rank int) AS $$ SELECT osm_id, geometry, class, name, name_en, name_de, tags, rank FROM ( SELECT osm_id, geometry, COALESCE( LOWER(REPLACE(NULLIF(protection_title, ''), ' ', '_')), NULLIF(boundary, ''), NULLIF(leisure, '') ) AS class, name, name_en, name_de, tags, NULL::int as rank FROM ( -- etldoc: osm_park_polygon_gen8 -> layer_park:z6 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen8 WHERE zoom_level = 6 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen7 -> layer_park:z7 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen7 WHERE zoom_level = 7 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen6 -> layer_park:z8 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen6 WHERE zoom_level = 8 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen5 -> layer_park:z9 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen5 WHERE zoom_level = 9 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen4 -> layer_park:z10 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen4 WHERE zoom_level = 10 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen3 -> layer_park:z11 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen3 WHERE zoom_level = 11 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen2 -> layer_park:z12 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen2 WHERE zoom_level = 12 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon_gen1 -> layer_park:z13 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon_gen1 WHERE zoom_level = 13 AND geometry && bbox UNION ALL -- etldoc: osm_park_polygon -> layer_park:z14 SELECT osm_id, geometry, name, name_en, name_de, tags, leisure, boundary, protection_title FROM osm_park_polygon WHERE zoom_level >= 14 AND geometry && bbox ) AS park_polygon UNION ALL SELECT osm_id, geometry_point AS geometry, COALESCE( LOWER(REPLACE(NULLIF(protection_title, ''), ' ', '_')), NULLIF(boundary, ''), NULLIF(leisure, '') ) AS class, name, name_en, name_de, tags, row_number() OVER ( PARTITION BY LabelGrid(geometry_point, 100 * pixel_width) ORDER BY (CASE WHEN boundary = 'national_park' THEN true ELSE false END) DESC, (COALESCE(NULLIF(tags->'wikipedia', ''), NULLIF(tags->'wikidata', '')) IS NOT NULL) DESC, area DESC )::int AS "rank" FROM ( -- etldoc: osm_park_polygon_gen8 -> layer_park:z6 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen8 WHERE zoom_level = 6 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen7 -> layer_park:z7 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen7 WHERE zoom_level = 7 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen6 -> layer_park:z8 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen6 WHERE zoom_level = 8 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen5 -> layer_park:z9 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen5 WHERE zoom_level = 9 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen4 -> layer_park:z10 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen4 WHERE zoom_level = 10 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen3 -> layer_park:z11 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen3 WHERE zoom_level = 11 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen2 -> layer_park:z12 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen2 WHERE zoom_level = 12 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon_gen1 -> layer_park:z13 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon_gen1 WHERE zoom_level = 13 AND geometry_point && bbox UNION ALL -- etldoc: osm_park_polygon -> layer_park:z14 SELECT osm_id, geometry_point, name, name_en, name_de, tags, leisure, boundary, protection_title, area FROM osm_park_polygon WHERE zoom_level >= 14 AND geometry_point && bbox ) AS park_point ) AS park_all; $$ LANGUAGE SQL IMMUTABLE PARALLEL SAFE;