Nominatim/lib-sql/functions/partition-functions.sql
2022-07-20 22:05:31 +08:00

373 lines
11 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 TYPE IF EXISTS nearfeaturecentr CASCADE;
CREATE TYPE nearfeaturecentr AS (
place_id BIGINT,
keywords int[],
rank_address smallint,
rank_search smallint,
distance float,
isguess boolean,
postcode TEXT,
centroid GEOMETRY
);
-- feature intersects geometry
-- for areas and linestrings they must touch at least along a line
CREATE OR REPLACE FUNCTION is_relevant_geometry(de9im TEXT, geom_type TEXT)
RETURNS BOOLEAN
AS $$
BEGIN
IF substring(de9im from 1 for 2) != 'FF' THEN
RETURN TRUE;
END IF;
IF geom_type = 'ST_Point' THEN
RETURN substring(de9im from 4 for 1) = '0';
END IF;
IF geom_type in ('ST_LineString', 'ST_MultiLineString') THEN
RETURN substring(de9im from 4 for 1) = '1';
END IF;
RETURN substring(de9im from 4 for 1) = '2';
END
$$ LANGUAGE plpgsql IMMUTABLE;
CREATE OR REPLACE function getNearFeatures(in_partition INTEGER, feature GEOMETRY,
feature_centroid GEOMETRY,
maxrank INTEGER)
RETURNS setof nearfeaturecentr AS $$
DECLARE
r nearfeaturecentr%rowtype;
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
FOR r IN
SELECT place_id, keywords, rank_address, rank_search,
CASE WHEN isguess THEN ST_Distance(feature, centroid)
ELSE min(ST_Distance(feature_centroid, geometry))
-- tie breaker when distance is the same (i.e. way is on boundary)
+ 0.00001 * ST_Distance(feature, centroid)
END as distance,
isguess, postcode, centroid
FROM location_area_large_{{ partition }}
WHERE geometry && feature
AND is_relevant_geometry(ST_Relate(geometry, feature), ST_GeometryType(feature))
AND rank_address < maxrank
-- Postcodes currently still use rank_search to define for which
-- features they are relevant.
AND not (rank_address in (5, 11) and rank_search > maxrank)
GROUP BY place_id, keywords, rank_address, rank_search, isguess, postcode, centroid
LOOP
RETURN NEXT r;
END LOOP;
RETURN;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END
$$
LANGUAGE plpgsql STABLE;
CREATE OR REPLACE FUNCTION get_address_place(in_partition SMALLINT, feature GEOMETRY,
from_rank SMALLINT, to_rank SMALLINT,
extent FLOAT, token_info JSONB, key TEXT)
RETURNS nearfeaturecentr
AS $$
DECLARE
r nearfeaturecentr%rowtype;
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
SELECT place_id, keywords, rank_address, rank_search,
min(ST_Distance(feature, centroid)) as distance,
isguess, postcode, centroid INTO r
FROM location_area_large_{{ partition }}
WHERE geometry && ST_Expand(feature, extent)
AND rank_address between from_rank and to_rank
AND token_matches_address(token_info, key, keywords)
GROUP BY place_id, keywords, rank_address, rank_search, isguess, postcode, centroid
ORDER BY bool_or(ST_Intersects(geometry, feature)) DESC, distance LIMIT 1;
RETURN r;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END;
$$
LANGUAGE plpgsql STABLE;
create or replace function deleteLocationArea(in_partition INTEGER, in_place_id BIGINT, in_rank_search INTEGER) RETURNS BOOLEAN AS $$
DECLARE
BEGIN
IF in_rank_search <= 4 THEN
DELETE from location_area_country WHERE place_id = in_place_id;
RETURN TRUE;
END IF;
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
DELETE from location_area_large_{{ partition }} WHERE place_id = in_place_id;
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
create or replace function insertLocationAreaLarge(
in_partition INTEGER, in_place_id BIGINT, in_country_code VARCHAR(2), in_keywords INTEGER[],
in_rank_search INTEGER, in_rank_address INTEGER, in_estimate BOOLEAN, postcode TEXT,
in_centroid GEOMETRY, in_geometry GEOMETRY) RETURNS BOOLEAN AS $$
DECLARE
BEGIN
IF in_rank_address = 0 THEN
RETURN TRUE;
END IF;
IF in_rank_search <= 4 and not in_estimate THEN
INSERT INTO location_area_country (place_id, country_code, geometry)
values (in_place_id, in_country_code, in_geometry);
RETURN TRUE;
END IF;
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
INSERT INTO location_area_large_{{ partition }} (partition, place_id, country_code, keywords, rank_search, rank_address, isguess, postcode, centroid, geometry)
values (in_partition, in_place_id, in_country_code, in_keywords, in_rank_search, in_rank_address, in_estimate, postcode, in_centroid, in_geometry);
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION getNearestNamedRoadPlaceId(in_partition INTEGER,
point GEOMETRY,
token_info JSONB)
RETURNS BIGINT
AS $$
DECLARE
parent BIGINT;
BEGIN
IF not token_has_addr_street(token_info) THEN
RETURN NULL;
END IF;
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
SELECT place_id FROM search_name_{{ partition }}
INTO parent
WHERE token_matches_street(token_info, name_vector)
AND centroid && ST_Expand(point, 0.015)
AND address_rank between 26 and 27
ORDER BY ST_Distance(centroid, point) ASC limit 1;
RETURN parent;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END
$$
LANGUAGE plpgsql STABLE;
CREATE OR REPLACE FUNCTION getNearestNamedPlacePlaceId(in_partition INTEGER,
point GEOMETRY,
token_info JSONB)
RETURNS BIGINT
AS $$
DECLARE
parent BIGINT;
BEGIN
IF not token_has_addr_place(token_info) THEN
RETURN NULL;
END IF;
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
SELECT place_id
INTO parent
FROM search_name_{{ partition }}
WHERE token_matches_place(token_info, name_vector)
AND centroid && ST_Expand(point, 0.04)
AND address_rank between 16 and 25
ORDER BY ST_Distance(centroid, point) ASC limit 1;
RETURN parent;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END
$$
LANGUAGE plpgsql STABLE;
create or replace function insertSearchName(
in_partition INTEGER, in_place_id BIGINT, in_name_vector INTEGER[],
in_rank_search INTEGER, in_rank_address INTEGER, in_geometry GEOMETRY)
RETURNS BOOLEAN AS $$
DECLARE
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
DELETE FROM search_name_{{ partition }} values WHERE place_id = in_place_id;
IF in_rank_address > 0 THEN
INSERT INTO search_name_{{ partition }} (place_id, address_rank, name_vector, centroid)
values (in_place_id, in_rank_address, in_name_vector, in_geometry);
END IF;
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
create or replace function deleteSearchName(in_partition INTEGER, in_place_id BIGINT) RETURNS BOOLEAN AS $$
DECLARE
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
DELETE from search_name_{{ partition }} WHERE place_id = in_place_id;
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
create or replace function insertLocationRoad(
in_partition INTEGER, in_place_id BIGINT, in_country_code VARCHAR(2), in_geometry GEOMETRY) RETURNS BOOLEAN AS $$
DECLARE
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
DELETE FROM location_road_{{ partition }} where place_id = in_place_id;
INSERT INTO location_road_{{ partition }} (partition, place_id, country_code, geometry)
values (in_partition, in_place_id, in_country_code, in_geometry);
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
create or replace function deleteRoad(in_partition INTEGER, in_place_id BIGINT) RETURNS BOOLEAN AS $$
DECLARE
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
DELETE FROM location_road_{{ partition }} where place_id = in_place_id;
RETURN TRUE;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
RETURN FALSE;
END
$$
LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION getNearestRoadPlaceId(in_partition INTEGER, point GEOMETRY)
RETURNS BIGINT
AS $$
DECLARE
r RECORD;
search_diameter FLOAT;
BEGIN
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
search_diameter := 0.00005;
WHILE search_diameter < 0.1 LOOP
FOR r IN
SELECT place_id FROM location_road_{{ partition }}
WHERE ST_DWithin(geometry, point, search_diameter)
ORDER BY ST_Distance(geometry, point) ASC limit 1
LOOP
RETURN r.place_id;
END LOOP;
search_diameter := search_diameter * 2;
END LOOP;
RETURN NULL;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END
$$
LANGUAGE plpgsql STABLE;
CREATE OR REPLACE FUNCTION getNearestParallelRoadFeature(in_partition INTEGER,
line GEOMETRY)
RETURNS BIGINT
AS $$
DECLARE
r RECORD;
search_diameter FLOAT;
p1 GEOMETRY;
p2 GEOMETRY;
p3 GEOMETRY;
BEGIN
IF ST_GeometryType(line) not in ('ST_LineString') THEN
RETURN NULL;
END IF;
p1 := ST_LineInterpolatePoint(line,0);
p2 := ST_LineInterpolatePoint(line,0.5);
p3 := ST_LineInterpolatePoint(line,1);
{% for partition in db.partitions %}
IF in_partition = {{ partition }} THEN
search_diameter := 0.0005;
WHILE search_diameter < 0.01 LOOP
FOR r IN
SELECT place_id FROM location_road_{{ partition }}
WHERE ST_DWithin(line, geometry, search_diameter)
ORDER BY (ST_distance(geometry, p1)+
ST_distance(geometry, p2)+
ST_distance(geometry, p3)) ASC limit 1
LOOP
RETURN r.place_id;
END LOOP;
search_diameter := search_diameter * 2;
END LOOP;
RETURN NULL;
END IF;
{% endfor %}
RAISE EXCEPTION 'Unknown partition %', in_partition;
END
$$
LANGUAGE plpgsql STABLE;