95 lines
2.3 KiB
PL/PgSQL
95 lines
2.3 KiB
PL/PgSQL
CREATE OR REPLACE FUNCTION ne_road_class(type VARCHAR) RETURNS VARCHAR AS $$
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SELECT CASE type
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WHEN 'Major Highway' THEN 'motorway'
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WHEN 'Secondary Highway' THEN 'trunk'
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WHEN 'Road' THEN 'primary'
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ELSE type
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END;
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$$ LANGUAGE SQL IMMUTABLE;
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CREATE OR REPLACE VIEW ne_10m_global_roads AS (
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SELECT geom, scalerank, ne_road_class(type) AS class
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FROM ne_10m_roads
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WHERE continent <> 'North America'
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AND featurecla = 'Road'
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AND type IN ('Major Highway', 'Secondary Highway', 'Road')
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UNION ALL
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SELECT geom, scalerank, ne_road_class(type) AS class
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FROM ne_10m_roads_north_america
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WHERE type IN ('Major Highway', 'Secondary Highway', 'Road')
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);
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CREATE OR REPLACE VIEW road_z4 AS (
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SELECT geom, class
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FROM ne_10m_global_roads
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WHERE scalerank <= 5
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);
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CREATE OR REPLACE VIEW road_z5 AS (
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SELECT geom, class
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FROM ne_10m_global_roads
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WHERE scalerank <= 6
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);
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CREATE OR REPLACE VIEW road_z6 AS (
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SELECT geom, class
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FROM ne_10m_global_roads
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WHERE scalerank <= 7
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);
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CREATE OR REPLACE VIEW road_z7 AS (
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SELECT geom, class
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FROM ne_10m_global_roads
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WHERE scalerank <= 7
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);
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CREATE OR REPLACE VIEW road_z8 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class IN ('motorway','trunk')
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);
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CREATE OR REPLACE VIEW road_z9 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class IN ('motorway','trunk', 'primary')
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);
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CREATE OR REPLACE VIEW road_z10 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class IN ('motorway','trunk', 'primary', 'secondary')
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);
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CREATE OR REPLACE VIEW road_z11 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class IN ('motorway','trunk', 'primary', 'secondary', 'tertiary')
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);
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CREATE OR REPLACE VIEW road_z12 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class IN ('motorway','trunk','primary', 'secondary', 'tertiary', 'minor')
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UNION ALL
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SELECT way AS geom, class::text
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FROM road_areas
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);
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CREATE OR REPLACE VIEW road_z13 AS (
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SELECT way AS geom, class::text
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FROM roads
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WHERE class NOT IN ('path')
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UNION ALL
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SELECT way AS geom, class::text
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FROM road_areas
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);
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CREATE OR REPLACE VIEW road_z14 AS (
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SELECT way AS geom, class::text
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FROM roads
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UNION ALL
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SELECT way AS geom, class::text
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FROM road_areas
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);
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