37 lines
1.2 KiB
SQL
37 lines
1.2 KiB
SQL
-- schema
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CREATE TABLE airports (
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gid SERIAL NOT NULL PRIMARY KEY,
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name TEXT,
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city TEXT,
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country TEXT,
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iata TEXT,
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icao TEXT,
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geom GEOMETRY,
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latitude DOUBLE PRECISION,
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longitude DOUBLE PRECISION,
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altitude DOUBLE PRECISION,
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timezone TEXT,
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dst TEXT,
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tz TEXT,
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type TEXT,
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source TEXT,
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CONSTRAINT enforce_dims_geom CHECK (st_ndims(geom) = 3),
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CONSTRAINT enforce_geotype_geom CHECK (geometrytype(geom) = 'POINT'::text OR geom IS NULL),
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CONSTRAINT enforce_srid_geom CHECK (st_srid(geom) = 4326)
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);
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-- create index for faster spatial lookups
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CREATE INDEX idx_geom ON airports USING GIN (geom);
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-- import data from airports.dat
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\copy airports(gid, name, city, country, iata, icao, latitude, longitude, altitude, timezone, dst, tz, type, source) FROM 'airports.dat' DELIMITERS ',' CSV;
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-- put lat/lon/altitude to the "real" geom field
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UPDATE airports
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SET geom = ST_SetSRID(ST_MakePoint(longitude, latitude, altitude * 0.3048),4326);
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ALTER TABLE airports DROP COLUMN latitude;
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ALTER TABLE airports DROP COLUMN longitude;
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ALTER TABLE airports DROP COLUMN altitude;
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ALTER TABLE airports DROP COLUMN type;
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ALTER TABLE airports DROP COLUMN source;
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