1 -- Assorted helper functions for the triggers.
3 CREATE OR REPLACE FUNCTION geometry_sector(partition INTEGER, place geometry)
9 -- RAISE WARNING '%',place;
10 NEWgeometry := ST_PointOnSurface(place);
11 RETURN (partition*1000000) + (500-ST_X(NEWgeometry)::integer)*1000 + (500-ST_Y(NEWgeometry)::integer);
14 LANGUAGE plpgsql IMMUTABLE;
17 CREATE OR REPLACE FUNCTION array_merge(a INTEGER[], b INTEGER[])
24 IF array_upper(a, 1) IS NULL THEN
27 IF array_upper(b, 1) IS NULL THEN
31 FOR i IN 1..array_upper(b, 1) LOOP
32 IF NOT (ARRAY[b[i]] <@ r) THEN
39 LANGUAGE plpgsql IMMUTABLE;
41 -- Return the node members with a given label from a relation member list
44 -- \param members Member list in osm2pgsql middle format.
45 -- \param memberLabels Array of labels to accept.
47 -- \returns Set of OSM ids of nodes that are found.
49 CREATE OR REPLACE FUNCTION get_rel_node_members(members TEXT[],
56 FOR i IN 1..ARRAY_UPPER(members,1) BY 2 LOOP
57 IF members[i+1] = ANY(memberLabels)
58 AND upper(substring(members[i], 1, 1))::char(1) = 'N'
60 RETURN NEXT substring(members[i], 2)::bigint;
67 LANGUAGE plpgsql IMMUTABLE;
69 -- Copy 'name' to or from the default language.
71 -- \param country_code Country code of the object being named.
72 -- \param[inout] name List of names of the object.
74 -- If the country named by country_code has a single default language,
75 -- then a `name` tag is copied to `name:<country_code>` if this tag does
76 -- not yet exist and vice versa.
77 CREATE OR REPLACE FUNCTION add_default_place_name(country_code VARCHAR(2),
81 default_language VARCHAR(10);
83 IF name is not null AND array_upper(akeys(name),1) > 1 THEN
84 default_language := get_country_language_code(country_code);
85 IF default_language IS NOT NULL THEN
86 IF name ? 'name' AND NOT name ? ('name:'||default_language) THEN
87 name := name || hstore(('name:'||default_language), (name -> 'name'));
88 ELSEIF name ? ('name:'||default_language) AND NOT name ? 'name' THEN
89 name := name || hstore('name', (name -> ('name:'||default_language)));
95 LANGUAGE plpgsql IMMUTABLE;
99 CREATE OR REPLACE FUNCTION reverse_place_diameter(rank_search SMALLINT)
103 IF rank_search <= 4 THEN
105 ELSIF rank_search <= 8 THEN
107 ELSIF rank_search <= 12 THEN
109 ELSIF rank_search <= 17 THEN
111 ELSIF rank_search <= 18 THEN
113 ELSIF rank_search <= 19 THEN
120 LANGUAGE plpgsql IMMUTABLE;
123 CREATE OR REPLACE FUNCTION get_postcode_rank(country_code VARCHAR(2), postcode TEXT,
124 OUT rank_search SMALLINT,
125 OUT rank_address SMALLINT)
132 postcode := upper(postcode);
134 IF country_code = 'gb' THEN
135 IF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9][A-Z][A-Z])$' THEN
138 ELSEIF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z]? [0-9])$' THEN
141 ELSEIF postcode ~ '^([A-Z][A-Z]?[0-9][0-9A-Z])$' THEN
146 ELSEIF country_code = 'sg' THEN
147 IF postcode ~ '^([0-9]{6})$' THEN
152 ELSEIF country_code = 'de' THEN
153 IF postcode ~ '^([0-9]{5})$' THEN
159 -- Guess at the postcode format and coverage (!)
160 IF postcode ~ '^[A-Z0-9]{1,5}$' THEN -- Probably too short to be very local
164 -- Does it look splitable into and area and local code?
165 part := substring(postcode from '^([- :A-Z0-9]+)([- :][A-Z0-9]+)$');
167 IF part IS NOT NULL THEN
170 ELSEIF postcode ~ '^[- :A-Z0-9]{6,}$' THEN
179 LANGUAGE plpgsql IMMUTABLE;
182 -- Find the nearest artificial postcode for the given geometry.
183 -- TODO For areas there should not be more than two inside the geometry.
184 CREATE OR REPLACE FUNCTION get_nearest_postcode(country VARCHAR(2), geom GEOMETRY)
191 -- If the geometry is an area then only one postcode must be within
192 -- that area, otherwise consider the area as not having a postcode.
193 IF ST_GeometryType(geom) in ('ST_Polygon','ST_MultiPolygon') THEN
194 SELECT min(postcode), count(*) FROM
195 (SELECT postcode FROM location_postcode
196 WHERE ST_Contains(geom, location_postcode.geometry) LIMIT 2) sub
206 SELECT postcode FROM location_postcode
207 WHERE ST_DWithin(geom, location_postcode.geometry, 0.05)
208 AND location_postcode.country_code = country
209 ORDER BY ST_Distance(geom, location_postcode.geometry) LIMIT 1
215 LANGUAGE plpgsql STABLE;
218 CREATE OR REPLACE FUNCTION get_country_code(place geometry)
222 place_centre GEOMETRY;
225 place_centre := ST_PointOnSurface(place);
227 -- RAISE WARNING 'get_country_code, start: %', ST_AsText(place_centre);
229 -- Try for a OSM polygon
231 SELECT country_code from location_area_country
232 WHERE country_code is not null and st_covers(geometry, place_centre) limit 1
234 RETURN nearcountry.country_code;
237 -- RAISE WARNING 'osm fallback: %', ST_AsText(place_centre);
239 -- Try for OSM fallback data
240 -- The order is to deal with places like HongKong that are 'states' within another polygon
242 SELECT country_code from country_osm_grid
243 WHERE st_covers(geometry, place_centre) order by area asc limit 1
245 RETURN nearcountry.country_code;
248 -- RAISE WARNING 'near osm fallback: %', ST_AsText(place_centre);
252 SELECT country_code from country_osm_grid
253 WHERE st_dwithin(geometry, place_centre, 0.5)
254 ORDER BY st_distance(geometry, place_centre) asc, area asc limit 1
256 RETURN nearcountry.country_code;
262 LANGUAGE plpgsql STABLE;
265 CREATE OR REPLACE FUNCTION get_country_language_code(search_country_code VARCHAR(2))
272 SELECT distinct country_default_language_code from country_name
273 WHERE country_code = search_country_code limit 1
275 RETURN lower(nearcountry.country_default_language_code);
280 LANGUAGE plpgsql STABLE;
283 CREATE OR REPLACE FUNCTION get_partition(in_country_code VARCHAR(10))
290 SELECT partition from country_name where country_code = in_country_code
292 RETURN nearcountry.partition;
297 LANGUAGE plpgsql STABLE;
300 -- Find the parent of an address with addr:street/addr:place tag.
302 -- \param street Value of addr:street or NULL if tag is missing.
303 -- \param place Value of addr:place or NULL if tag is missing.
304 -- \param partition Partition where to search the parent.
305 -- \param centroid Location of the address.
307 -- \return Place ID of the parent if one was found, NULL otherwise.
308 CREATE OR REPLACE FUNCTION find_parent_for_address(street TEXT, place TEXT,
314 parent_place_id BIGINT;
317 IF street is not null THEN
318 -- Check for addr:street attributes
319 -- Note that addr:street links can only be indexed, once the street itself is indexed
320 word_ids := word_ids_from_name(street);
321 IF word_ids is not null THEN
322 parent_place_id := getNearestNamedRoadPlaceId(partition, centroid, word_ids);
323 IF parent_place_id is not null THEN
324 --DEBUG: RAISE WARNING 'Get parent form addr:street: %', parent.place_id;
325 RETURN parent_place_id;
330 -- Check for addr:place attributes.
331 IF place is not null THEN
332 word_ids := word_ids_from_name(place);
333 IF word_ids is not null THEN
334 parent_place_id := getNearestNamedPlacePlaceId(partition, centroid, word_ids);
335 IF parent_place_id is not null THEN
336 --DEBUG: RAISE WARNING 'Get parent form addr:place: %', parent.place_id;
337 RETURN parent_place_id;
345 LANGUAGE plpgsql STABLE;
347 CREATE OR REPLACE FUNCTION delete_location(OLD_place_id BIGINT)
352 DELETE FROM location_area where place_id = OLD_place_id;
353 -- TODO:location_area
360 CREATE OR REPLACE FUNCTION add_location(place_id BIGINT, country_code varchar(2),
361 partition INTEGER, keywords INTEGER[],
362 rank_search INTEGER, rank_address INTEGER,
363 in_postcode TEXT, geometry GEOMETRY)
376 IF rank_search > 25 THEN
377 RAISE EXCEPTION 'Adding location with rank > 25 (% rank %)', place_id, rank_search;
380 x := deleteLocationArea(partition, place_id, rank_search);
382 -- add postcode only if it contains a single entry, i.e. ignore postcode lists
384 IF in_postcode is not null AND in_postcode not similar to '%(,|;)%' THEN
385 postcode := upper(trim (in_postcode));
388 IF ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon') THEN
389 centroid := ST_Centroid(geometry);
391 FOR secgeo IN select split_geometry(geometry) AS geom LOOP
392 x := insertLocationAreaLarge(partition, place_id, country_code, keywords, rank_search, rank_address, false, postcode, centroid, secgeo);
398 IF rank_address = 0 THEN
400 ELSEIF rank_search <= 14 THEN
402 ELSEIF rank_search <= 15 THEN
404 ELSEIF rank_search <= 16 THEN
406 ELSEIF rank_search <= 17 THEN
408 ELSEIF rank_search <= 21 THEN
410 ELSEIF rank_search = 25 THEN
414 -- RAISE WARNING 'adding % diameter %', place_id, diameter;
416 secgeo := ST_Buffer(geometry, diameter);
417 x := insertLocationAreaLarge(partition, place_id, country_code, keywords, rank_search, rank_address, true, postcode, ST_Centroid(geometry), secgeo);
427 CREATE OR REPLACE FUNCTION quad_split_geometry(geometry GEOMETRY, maxarea FLOAT,
429 RETURNS SETOF GEOMETRY
443 remainingdepth INTEGER;
447 -- RAISE WARNING 'quad_split_geometry: maxarea=%, depth=%',maxarea,maxdepth;
449 IF (ST_GeometryType(geometry) not in ('ST_Polygon','ST_MultiPolygon') OR NOT ST_IsValid(geometry)) THEN
450 RETURN NEXT geometry;
454 remainingdepth := maxdepth - 1;
455 area := ST_AREA(geometry);
456 IF remainingdepth < 1 OR area < maxarea THEN
457 RETURN NEXT geometry;
461 xmin := st_xmin(geometry);
462 xmax := st_xmax(geometry);
463 ymin := st_ymin(geometry);
464 ymax := st_ymax(geometry);
465 secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(ymin,xmin),ST_Point(ymax,xmax)),4326);
467 -- if the geometry completely covers the box don't bother to slice any more
468 IF ST_AREA(secbox) = area THEN
469 RETURN NEXT geometry;
473 xmid := (xmin+xmax)/2;
474 ymid := (ymin+ymax)/2;
480 secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmin,ymin),ST_Point(xmid,ymid)),4326);
483 secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmin,ymid),ST_Point(xmid,ymax)),4326);
486 secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmid,ymin),ST_Point(xmax,ymid)),4326);
489 secbox := ST_SetSRID(ST_MakeBox2D(ST_Point(xmid,ymid),ST_Point(xmax,ymax)),4326);
492 IF st_intersects(geometry, secbox) THEN
493 secgeo := st_intersection(geometry, secbox);
494 IF NOT ST_IsEmpty(secgeo) AND ST_GeometryType(secgeo) in ('ST_Polygon','ST_MultiPolygon') THEN
495 FOR geo IN select quad_split_geometry(secgeo, maxarea, remainingdepth) as geom LOOP
496 IF NOT ST_IsEmpty(geo.geom) AND ST_GeometryType(geo.geom) in ('ST_Polygon','ST_MultiPolygon') THEN
498 RETURN NEXT geo.geom;
508 LANGUAGE plpgsql IMMUTABLE;
511 CREATE OR REPLACE FUNCTION split_geometry(geometry GEOMETRY)
512 RETURNS SETOF GEOMETRY
517 -- 10000000000 is ~~ 1x1 degree
518 FOR geo IN select quad_split_geometry(geometry, 0.25, 20) as geom LOOP
519 RETURN NEXT geo.geom;
524 LANGUAGE plpgsql IMMUTABLE;
527 CREATE OR REPLACE FUNCTION place_force_delete(placeid BIGINT)
532 osmtype character(1);
536 SELECT osm_type, osm_id, class, type FROM placex WHERE place_id = placeid INTO osmtype, osmid, pclass, ptype;
537 DELETE FROM import_polygon_delete where osm_type = osmtype and osm_id = osmid and class = pclass and type = ptype;
538 DELETE FROM import_polygon_error where osm_type = osmtype and osm_id = osmid and class = pclass and type = ptype;
539 -- force delete from place/placex by making it a very small geometry
540 UPDATE place set geometry = ST_SetSRID(ST_Point(0,0), 4326) where osm_type = osmtype and osm_id = osmid and class = pclass and type = ptype;
541 DELETE FROM place where osm_type = osmtype and osm_id = osmid and class = pclass and type = ptype;
549 CREATE OR REPLACE FUNCTION place_force_update(placeid BIGINT)
558 UPDATE placex SET indexed_status = 2 WHERE place_id = placeid;
559 SELECT geometry, rank_search FROM placex WHERE place_id = placeid INTO placegeom, rank;
560 IF placegeom IS NOT NULL AND ST_IsValid(placegeom) THEN
561 IF ST_GeometryType(placegeom) in ('ST_Polygon','ST_MultiPolygon') THEN
562 FOR geom IN select split_geometry(placegeom) FROM placex WHERE place_id = placeid LOOP
563 update placex set indexed_status = 2 where (st_covers(geom, placex.geometry) OR ST_Intersects(geom, placex.geometry))
564 AND rank_search > rank and indexed_status = 0 and ST_geometrytype(placex.geometry) = 'ST_Point' and (rank_search < 28 or name is not null or (rank >= 16 and address ? 'place'));
565 update placex set indexed_status = 2 where (st_covers(geom, placex.geometry) OR ST_Intersects(geom, placex.geometry))
566 AND rank_search > rank and indexed_status = 0 and ST_geometrytype(placex.geometry) != 'ST_Point' and (rank_search < 28 or name is not null or (rank >= 16 and address ? 'place'));
572 ELSEIF rank < 18 THEN
574 ELSEIF rank < 20 THEN
576 ELSEIF rank = 21 THEN
578 ELSEIF rank < 24 THEN
580 ELSEIF rank < 26 THEN
581 diameter := 0.002; -- 100 to 200 meters
582 ELSEIF rank < 28 THEN
583 diameter := 0.001; -- 50 to 100 meters
587 -- roads may cause reparenting for >27 rank places
588 update placex set indexed_status = 2 where indexed_status = 0 and rank_search > rank and ST_DWithin(placex.geometry, placegeom, diameter);
589 ELSEIF rank >= 16 THEN
590 -- up to rank 16, street-less addresses may need reparenting
591 update placex set indexed_status = 2 where indexed_status = 0 and rank_search > rank and ST_DWithin(placex.geometry, placegeom, diameter) and (rank_search < 28 or name is not null or address ? 'place');
593 -- for all other places the search terms may change as well
594 update placex set indexed_status = 2 where indexed_status = 0 and rank_search > rank and ST_DWithin(placex.geometry, placegeom, diameter) and (rank_search < 28 or name is not null);