6457419e0d
I would like to reformat all of our SQL to have a concise coding style. This makes it far easier to understand the code for a casual contributor, and lets us spot errors more easily. Most importantly, it makes it much easier to grep (search) the code because it is more likely to be in the same syntax Some key changes: * SQL keywords are always UPPERCASE, e.g. `SELECT WHEN AS END ...` * types, variables, aliases, and field names (identifiers) are always lower case * `LANGUAGE 'plpgsql'` is now `LANGUAGE plpgsql` (no quotes) * a few minor spacing/semicolon cleanups P.S. Per @TomPohys request, `TABLE` is spelled using upper case despite being a type for consistency with PG Docs. Same for `LANGUAGE SQL` vs `LANGUAGE plpgsql`.
333 lines
12 KiB
PL/PgSQL
333 lines
12 KiB
PL/PgSQL
-- etldoc: layer_park[shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="layer_park |<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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name,
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name_en,
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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_gen8 -> 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_gen8
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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_gen7 -> 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_gen7
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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_gen6 -> 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_gen6
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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_gen5 -> 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_gen5
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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_gen4 -> 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_gen4
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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_gen3 -> 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_gen3
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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_gen2 -> 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_gen2
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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_gen1 -> 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_gen1
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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_gen8 -> 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_gen8
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WHERE zoom_level = 6
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen7 -> 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_gen7
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WHERE zoom_level = 7
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen6 -> 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_gen6
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WHERE zoom_level = 8
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen5 -> 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_gen5
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WHERE zoom_level = 9
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen4 -> 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_gen4
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WHERE zoom_level = 10
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen3 -> 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_gen3
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WHERE zoom_level = 11
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen2 -> 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_gen2
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WHERE zoom_level = 12
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AND geometry_point && bbox
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UNION ALL
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-- etldoc: osm_park_polygon_gen1 -> 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_gen1
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WHERE zoom_level = 13
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AND geometry_point && 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_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 IMMUTABLE
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PARALLEL SAFE;
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