Nominatim/lib-sql/tiger_import_start.sql
2022-01-27 14:08:08 +01:00

99 lines
3.0 KiB
PL/PgSQL

-- SPDX-License-Identifier: GPL-2.0-only
--
-- This file is part of Nominatim. (https://nominatim.org)
--
-- Copyright (C) 2022 by the Nominatim developer community.
-- For a full list of authors see the git log.
DROP TABLE IF EXISTS location_property_tiger_import;
CREATE TABLE location_property_tiger_import (
linegeo GEOMETRY,
place_id BIGINT,
partition INTEGER,
parent_place_id BIGINT,
startnumber INTEGER,
endnumber INTEGER,
step SMALLINT,
postcode TEXT);
CREATE OR REPLACE FUNCTION tiger_line_import(linegeo GEOMETRY, in_startnumber INTEGER,
in_endnumber INTEGER, interpolationtype TEXT,
token_info JSONB, in_postcode TEXT) RETURNS INTEGER
AS $$
DECLARE
startnumber INTEGER;
endnumber INTEGER;
stepsize INTEGER;
numberrange INTEGER;
place_centroid GEOMETRY;
out_partition INTEGER;
out_parent_place_id BIGINT;
location RECORD;
BEGIN
IF in_endnumber > in_startnumber THEN
startnumber := in_startnumber;
endnumber := in_endnumber;
ELSE
startnumber := in_endnumber;
endnumber := in_startnumber;
linegeo := ST_Reverse(linegeo);
END IF;
IF startnumber < 0 THEN
RAISE WARNING 'Negative house number range (% to %)', startnumber, endnumber;
RETURN 0;
END IF;
numberrange := endnumber - startnumber;
IF (interpolationtype = 'odd' AND startnumber % 2 = 0) OR (interpolationtype = 'even' AND startnumber % 2 = 1) THEN
startnumber := startnumber + 1;
stepsize := 2;
ELSE
IF (interpolationtype = 'odd' OR interpolationtype = 'even') THEN
stepsize := 2;
ELSE -- everything else assumed to be 'all'
stepsize := 1;
END IF;
END IF;
-- Filter out really broken tiger data
IF numberrange > 0
and numberrange::float/stepsize::float > 500
and ST_length(linegeo)/(numberrange::float/stepsize::float) < 0.000001
THEN
RAISE WARNING 'Road too short for number range % to % (%)',startnumber,endnumber,
ST_length(linegeo)/(numberrange::float/stepsize::float);
RETURN 0;
END IF;
place_centroid := ST_Centroid(linegeo);
out_partition := get_partition('us');
out_parent_place_id := getNearestNamedRoadPlaceId(out_partition, place_centroid,
token_info);
IF out_parent_place_id IS NULL THEN
SELECT getNearestParallelRoadFeature(out_partition, linegeo)
INTO out_parent_place_id;
END IF;
IF out_parent_place_id IS NULL THEN
SELECT getNearestRoadPlaceId(out_partition, place_centroid)
INTO out_parent_place_id;
END IF;
--insert street(line) into import table
insert into location_property_tiger_import (linegeo, place_id, partition,
parent_place_id, startnumber, endnumber,
step, postcode)
values (linegeo, nextval('seq_place'), out_partition,
out_parent_place_id, startnumber, endnumber,
stepsize, in_postcode);
RETURN 1;
END;
$$
LANGUAGE plpgsql;