Nominatim/sql/tiger_import_start.sql

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MySQL
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DROP TABLE IF EXISTS location_property_tiger_import;
CREATE TABLE location_property_tiger_import () INHERITS (location_property);
CREATE OR REPLACE FUNCTION tigger_create_interpolation(linegeo GEOMETRY, in_startnumber INTEGER,
in_endnumber INTEGER, interpolationtype TEXT,
in_street TEXT, in_isin TEXT, in_postcode TEXT) RETURNS INTEGER
AS $$
DECLARE
startnumber INTEGER;
endnumber INTEGER;
stepsize INTEGER;
housenum INTEGER;
newpoints INTEGER;
numberrange INTEGER;
rangestartnumber INTEGER;
place_centroid GEOMETRY;
out_partition INTEGER;
out_parent_place_id BIGINT;
location RECORD;
address_street_word_id INTEGER;
BEGIN
IF in_endnumber > in_startnumber THEN
startnumber = in_startnumber;
endnumber = in_endnumber;
ELSE
startnumber = in_endnumber;
endnumber = in_startnumber;
END IF;
numberrange := endnumber - startnumber;
rangestartnumber := 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 % on %, % (%)',startnumber,endnumber,in_street,in_isin,
ST_length(linegeo)/(numberrange::float/stepsize::float);
RETURN 0;
END IF;
place_centroid := ST_Centroid(linegeo);
out_partition := get_partition(place_centroid, 'us');
out_parent_place_id := null;
address_street_word_id := get_name_id(make_standard_name(in_street));
IF address_street_word_id IS NOT NULL THEN
FOR location IN SELECT * from getNearestNamedRoadFeature(out_partition, place_centroid, address_street_word_id) LOOP
out_parent_place_id := location.place_id;
END LOOP;
END IF;
IF out_parent_place_id IS NULL THEN
FOR location IN SELECT place_id FROM getNearestParellelRoadFeature(out_partition, linegeo) LOOP
out_parent_place_id := location.place_id;
END LOOP;
END IF;
IF out_parent_place_id IS NULL THEN
FOR location IN SELECT place_id FROM getNearestRoadFeature(out_partition, place_centroid) LOOP
out_parent_place_id := location.place_id;
END LOOP;
END IF;
newpoints := 0;
FOR housenum IN startnumber..endnumber BY stepsize LOOP
insert into location_property_tiger_import (place_id, partition, parent_place_id, housenumber, postcode, centroid)
values (nextval('seq_place'), out_partition, out_parent_place_id, housenum, in_postcode,
ST_LineInterpolatePoint(linegeo, (housenum::float-rangestartnumber::float)/numberrange::float));
newpoints := newpoints + 1;
END LOOP;
RETURN newpoints;
END;
$$
LANGUAGE plpgsql;