e29827d76c
This PR adds indigenous lands to the `boundary` layer by adding new area features for these objects, along with generalization up to z4. It borrows heavily from the technical processing chain of the `park` layer. I added new `class`, `name`, and `name:xx` attributes to the boundary layer, in order to support the new area features. Should we (or someone extending this schema) come up with new objects to place in the boundary layer in the future, `class` would support additional categories.
387 lines
14 KiB
PL/PgSQL
387 lines
14 KiB
PL/PgSQL
-- etldoc: layer_park[shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="layer_park |<z4> z4 |<z5> z5 |<z6> z6 |<z7> z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14> z14+" ] ;
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CREATE OR REPLACE FUNCTION layer_park(bbox geometry, zoom_level int, pixel_width numeric)
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RETURNS TABLE
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(
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osm_id bigint,
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geometry geometry,
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class text,
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name text,
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name_en text,
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name_de text,
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tags hstore,
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rank int
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)
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AS
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$$
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SELECT osm_id,
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geometry,
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class,
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NULLIF(name, '') AS name,
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NULLIF(name_en, '') AS name_en,
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NULLIF(name_de, '') AS name_de,
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tags,
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rank
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FROM (
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SELECT osm_id,
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geometry,
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COALESCE(
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LOWER(REPLACE(NULLIF(protection_title, ''), ' ', '_')),
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NULLIF(boundary, ''),
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NULLIF(leisure, ''))
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AS class,
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name,
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name_en,
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name_de,
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tags,
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NULL::int AS rank
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FROM (
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-- etldoc: osm_park_polygon_dissolve_z4 -> layer_park:z4
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SELECT NULL::int AS osm_id,
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geometry,
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NULL AS name,
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NULL AS name_en,
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NULL AS name_de,
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NULL AS tags,
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NULL AS leisure,
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NULL AS boundary,
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NULL AS protection_title
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FROM osm_park_polygon_dissolve_z4
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WHERE zoom_level = 4
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z5 -> layer_park:z5
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z5
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WHERE zoom_level = 5
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z6 -> layer_park:z6
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z6
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WHERE zoom_level = 6
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z7 -> layer_park:z7
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z7
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WHERE zoom_level = 7
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z8 -> layer_park:z8
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z8
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WHERE zoom_level = 8
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z9 -> layer_park:z9
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z9
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WHERE zoom_level = 9
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z10 -> layer_park:z10
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z10
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WHERE zoom_level = 10
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z11 -> layer_park:z11
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z11
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WHERE zoom_level = 11
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z12 -> layer_park:z12
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z12
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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_park_polygon_gen_z13 -> layer_park:z13
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon_gen_z13
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WHERE zoom_level = 13
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AND geometry && bbox
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UNION ALL
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-- etldoc: osm_park_polygon -> layer_park:z14
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SELECT osm_id,
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geometry,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title
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FROM osm_park_polygon
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WHERE zoom_level >= 14
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AND geometry && bbox
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) AS park_polygon
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UNION ALL
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SELECT osm_id,
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geometry_point AS geometry,
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COALESCE(
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LOWER(REPLACE(NULLIF(protection_title, ''), ' ', '_')),
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NULLIF(boundary, ''),
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NULLIF(leisure, '')
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) AS class,
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name,
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name_en,
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name_de,
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tags,
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row_number() OVER (
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PARTITION BY LabelGrid(geometry_point, 100 * pixel_width)
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ORDER BY
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(CASE WHEN boundary = 'national_park' THEN TRUE ELSE FALSE END) DESC,
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(COALESCE(NULLIF(tags->'wikipedia', ''), NULLIF(tags->'wikidata', '')) IS NOT NULL) DESC,
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area DESC
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)::int AS "rank"
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FROM (
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-- etldoc: osm_park_polygon_gen_z5 -> layer_park:z5
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z5
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WHERE zoom_level = 5
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z6 -> layer_park:z6
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z6
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WHERE zoom_level = 6
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z7 -> layer_park:z7
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z7
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WHERE zoom_level = 7
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z8 -> layer_park:z8
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z8
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WHERE zoom_level = 8
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z9 -> layer_park:z9
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z9
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WHERE zoom_level = 9
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z10 -> layer_park:z10
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z10
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WHERE zoom_level = 10
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z11 -> layer_park:z11
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z11
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WHERE zoom_level = 11
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z12 -> layer_park:z12
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z12
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WHERE zoom_level = 12
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon_gen_z13 -> layer_park:z13
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon_gen_z13
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WHERE zoom_level = 13
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AND geometry_point && bbox
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AND area > 70000*2^(20-zoom_level)
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UNION ALL
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-- etldoc: osm_park_polygon -> layer_park:z14
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SELECT osm_id,
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geometry_point,
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name,
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name_en,
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name_de,
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tags,
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leisure,
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boundary,
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protection_title,
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area
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FROM osm_park_polygon
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WHERE zoom_level >= 14
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AND geometry_point && bbox
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) AS park_point
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) AS park_all;
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$$ LANGUAGE SQL STABLE
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PARALLEL SAFE;
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-- TODO: Check if the above can be made STRICT -- i.e. if pixel_width could be NULL
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