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aerodrome_label.sql
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aerodrome_label.sql
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-- etldoc: layer_aerodrome_label[shape=record fillcolor=lightpink, style="rounded,filled", label="layer_aerodrome_label | <z8> z8 | <z9> z9 | <z10_> z10+" ] ;
CREATE OR REPLACE FUNCTION layer_aerodrome_label(bbox geometry,
zoom_level integer)
RETURNS TABLE
(
id bigint,
geometry geometry,
name text,
name_en text,
name_de text,
tags hstore,
class text,
iata text,
icao text,
ele int,
ele_ft int
)
AS
$$
SELECT
-- etldoc: osm_aerodrome_label_point -> layer_aerodrome_label:z8
-- etldoc: osm_aerodrome_label_point -> layer_aerodrome_label:z9
ABS(osm_id) AS id, -- mvt feature IDs can't be negative
geometry,
name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
aerodrome_type AS class,
NULLIF(iata, '') AS iata,
NULLIF(icao, '') AS icao,
substring(ele FROM E'^(-?\\d+)(\\D|$)')::int AS ele,
round(substring(ele FROM E'^(-?\\d+)(\\D|$)')::int * 3.2808399)::int AS ele_ft
FROM osm_aerodrome_label_point
WHERE geometry && bbox
AND aerodrome_type = 'international'
AND iata <> ''
AND zoom_level BETWEEN 8 AND 9
UNION ALL
SELECT
-- etldoc: osm_aerodrome_label_point -> layer_aerodrome_label:z10_
ABS(osm_id) AS id, -- mvt feature IDs can't be negative
geometry,
name,
COALESCE(NULLIF(name_en, ''), name) AS name_en,
COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
tags,
aerodrome_type AS class,
NULLIF(iata, '') AS iata,
NULLIF(icao, '') AS icao,
substring(ele FROM E'^(-?\\d+)(\\D|$)')::int AS ele,
round(substring(ele FROM E'^(-?\\d+)(\\D|$)')::int * 3.2808399)::int AS ele_ft
FROM osm_aerodrome_label_point
WHERE geometry && bbox
AND zoom_level >= 10;
$$ LANGUAGE SQL STABLE
-- STRICT
PARALLEL SAFE;