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factor out computation of default names

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Also moves the computation down the line so that we never
have to do it twice.
This commit is contained in:
Sarah Hoffmann
2020-01-16 00:11:32 +01:00
parent c3dc66ce9c
commit 6dccc693d0
1 changed files with 68 additions and 101 deletions
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169
sql/functions/placex_triggers.sql
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@@ -19,6 +19,26 @@ END;
$$
LANGUAGE plpgsql IMMUTABLE;
-- copy 'name' to or from the default language (if there is a default language)
CREATE OR REPLACE FUNCTION add_default_place_name(country_code VARCHAR(2),
INOUT name HSTORE)
AS $$
DECLARE
default_language VARCHAR(10);
BEGIN
IF name is not null AND array_upper(akeys(name),1) > 1 THEN
default_language := get_country_language_code(country_code);
IF default_language IS NOT NULL THEN
IF name ? 'name' AND NOT name ? ('name:'||default_language) THEN
name := name || hstore(('name:'||default_language), (name -> 'name'));
ELSEIF name ? ('name:'||default_language) AND NOT name ? 'name' THEN
name := name || hstore('name', (name -> ('name:'||default_language)));
END IF;
END IF;
END IF;
END;
$$
LANGUAGE plpgsql IMMUTABLE;
-- Try to find a linked place for the given object.
CREATE OR REPLACE FUNCTION find_linked_place(bnd placex)
@@ -123,7 +143,6 @@ DECLARE
result BOOLEAN;
is_area BOOLEAN;
country_code VARCHAR(2);
default_language VARCHAR(10);
diameter FLOAT;
classtable TEXT;
classtype TEXT;
@@ -138,18 +157,6 @@ BEGIN
NEW.partition := get_partition(NEW.country_code);
NEW.geometry_sector := geometry_sector(NEW.partition, NEW.geometry);
-- copy 'name' to or from the default language (if there is a default language)
IF NEW.name is not null AND array_upper(akeys(NEW.name),1) > 1 THEN
default_language := get_country_language_code(NEW.country_code);
IF default_language IS NOT NULL THEN
IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
NEW.name := NEW.name || hstore(('name:'||default_language), (NEW.name -> 'name'));
ELSEIF NEW.name ? ('name:'||default_language) AND NOT NEW.name ? 'name' THEN
NEW.name := NEW.name || hstore('name', (NEW.name -> ('name:'||default_language)));
END IF;
END IF;
END IF;
IF NEW.osm_type = 'X' THEN
-- E'X'ternal records should already be in the right format so do nothing
ELSE
@@ -304,7 +311,6 @@ CREATE OR REPLACE FUNCTION placex_update()
AS $$
DECLARE
place_centroid GEOMETRY;
near_centroid GEOMETRY;
search_maxdistance FLOAT[];
@@ -317,7 +323,6 @@ DECLARE
way RECORD;
relation RECORD;
relation_members TEXT[];
linkedplacex RECORD;
addr_item RECORD;
search_diameter FLOAT;
search_prevdiameter FLOAT;
@@ -339,7 +344,6 @@ DECLARE
location_isaddress BOOLEAN;
location_keywords INTEGER[];
default_language TEXT;
name_vector INTEGER[];
nameaddress_vector INTEGER[];
@@ -410,12 +414,11 @@ BEGIN
-- Speed up searches - just use the centroid of the feature
-- cheaper but less acurate
place_centroid := ST_PointOnSurface(NEW.geometry);
NEW.centroid := ST_PointOnSurface(NEW.geometry);
-- For searching near features rather use the centroid
near_centroid := ST_Envelope(NEW.geometry);
NEW.centroid := null;
NEW.postcode := null;
--DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(place_centroid);
--DEBUG: RAISE WARNING 'Computing preliminary centroid at %',ST_AsText(NEW.centroid);
-- recalculate country and partition
IF NEW.rank_search = 4 AND NEW.address is not NULL AND NEW.address ? 'country' THEN
@@ -425,12 +428,12 @@ BEGIN
NEW.country_code := lower(NEW.address->'country');
NEW.partition := get_partition(lower(NEW.country_code));
IF NEW.partition = 0 THEN
NEW.country_code := lower(get_country_code(place_centroid));
NEW.country_code := lower(get_country_code(NEW.centroid));
NEW.partition := get_partition(NEW.country_code);
END IF;
ELSE
IF NEW.rank_search >= 4 THEN
NEW.country_code := lower(get_country_code(place_centroid));
NEW.country_code := lower(get_country_code(NEW.centroid));
ELSE
NEW.country_code := NULL;
END IF;
@@ -458,31 +461,6 @@ BEGIN
--DEBUG: RAISE WARNING 'Waterway processed';
END IF;
-- What level are we searching from
search_maxrank := NEW.rank_search;
-- Thought this wasn't needed but when we add new languages to the country_name table
-- we need to update the existing names
IF NEW.name is not null AND array_upper(akeys(NEW.name),1) > 1 THEN
default_language := get_country_language_code(NEW.country_code);
IF default_language IS NOT NULL THEN
IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
NEW.name := NEW.name || hstore(('name:'||default_language), (NEW.name -> 'name'));
ELSEIF NEW.name ? ('name:'||default_language) AND NOT NEW.name ? 'name' THEN
NEW.name := NEW.name || hstore('name', (NEW.name -> ('name:'||default_language)));
END IF;
END IF;
END IF;
--DEBUG: RAISE WARNING 'Local names updated';
-- Initialise the name vector using our name
name_vector := make_keywords(NEW.name);
nameaddress_vector := '{}'::int[];
FOR i IN 1..28 LOOP
address_havelevel[i] := false;
END LOOP;
NEW.importance := null;
SELECT wikipedia, importance
FROM compute_importance(NEW.extratags, NEW.country_code, NEW.osm_type, NEW.osm_id)
@@ -495,17 +473,13 @@ BEGIN
IF (NEW.rank_search > 27 OR (NEW.type = 'postcode' AND NEW.rank_search = 25)) THEN
--DEBUG: RAISE WARNING 'finding street for % %', NEW.osm_type, NEW.osm_id;
-- We won't get a better centroid, besides these places are too small to care
NEW.centroid := place_centroid;
NEW.parent_place_id := null;
-- if we have a POI and there is no address information,
-- see if we can get it from a surrounding building
IF NEW.osm_type = 'N' AND addr_street IS NULL AND addr_place IS NULL
AND NEW.housenumber IS NULL THEN
FOR location IN select address from placex where ST_Covers(geometry, place_centroid)
FOR location IN select address from placex where ST_Covers(geometry, NEW.centroid)
and address is not null
and (address ? 'housenumber' or address ? 'street' or address ? 'place')
and rank_search > 28 AND ST_GeometryType(geometry) in ('ST_Polygon','ST_MultiPolygon')
@@ -656,6 +630,9 @@ BEGIN
return NEW;
END IF;
NEW.name := add_default_place_name(NEW.country_code, NEW.name);
name_vector := make_keywords(NEW.name);
-- Performance, it would be more acurate to do all the rest of the import
-- process but it takes too long
-- Just be happy with inheriting from parent road only
@@ -669,19 +646,17 @@ BEGIN
IF NOT %REVERSE-ONLY% THEN
-- Merge address from parent
SELECT s.name_vector, s.nameaddress_vector FROM search_name s
WHERE s.place_id = NEW.parent_place_id INTO location;
nameaddress_vector := array_merge(nameaddress_vector,
location.nameaddress_vector);
nameaddress_vector := array_merge(nameaddress_vector, location.name_vector);
SELECT array_merge(s.name_vector, s.nameaddress_vector)
INTO nameaddress_vector
FROM search_name s
WHERE s.place_id = NEW.parent_place_id;
INSERT INTO search_name (place_id, search_rank, address_rank,
importance, country_code, name_vector,
nameaddress_vector, centroid)
VALUES (NEW.place_id, NEW.rank_search, NEW.rank_address,
NEW.importance, NEW.country_code, name_vector,
nameaddress_vector, place_centroid);
nameaddress_vector, NEW.centroid);
--DEBUG: RAISE WARNING 'Place added to search table';
END IF;
@@ -693,65 +668,62 @@ BEGIN
-- ---------------------------------------------------------------------------
-- Full indexing
--DEBUG: RAISE WARNING 'Using full index mode for % %', NEW.osm_type, NEW.osm_id;
SELECT * INTO location FROM find_linked_place(NEW);
IF location.place_id is not null THEN
--DEBUG: RAISE WARNING 'Linked %', location;
FOR linkedPlacex IN SELECT * FROM find_linked_place(NEW) LOOP
-- If we don't already have one use this as the centre point of the geometry
IF NEW.centroid IS NULL THEN
--DEBUG: RAISE WARNING 'Linked %', linkedPlacex;
NEW.centroid := coalesce(linkedPlacex.centroid,
ST_Centroid(linkedPlacex.geometry));
END IF;
place_centroid := NEW.centroid;
-- Use this as the centre point of the geometry
NEW.centroid := coalesce(location.centroid,
ST_Centroid(location.geometry));
-- merge in the label name, re-init word vector
IF NOT linkedPlacex.name IS NULL THEN
NEW.name := linkedPlacex.name || NEW.name;
name_vector := array_merge(name_vector, make_keywords(linkedPlacex.name));
-- Place might have had only a name tag before but has now received
-- translations from the linked place. Make sure a name tag for the
-- default language exists in this case.
IF array_upper(akeys(NEW.name), 1) > 1 THEN
default_language := get_country_language_code(NEW.country_code);
IF default_language IS NOT NULL THEN
IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
NEW.name := NEW.name || hstore(('name:'||default_language), (NEW.name -> 'name'));
ELSEIF NEW.name ? ('name:'||default_language) AND NOT NEW.name ? 'name' THEN
NEW.name := NEW.name || hstore('name', (NEW.name -> ('name:'||default_language)));
END IF;
END IF;
END IF;
-- merge in the label name
IF NOT location.name IS NULL THEN
NEW.name := location.name || NEW.name;
END IF;
-- merge in extra tags
NEW.extratags := hstore(linkedPlacex.class, linkedPlacex.type)
|| coalesce(linkedPlacex.extratags, ''::hstore)
NEW.extratags := hstore(location.class, location.type)
|| coalesce(location.extratags, ''::hstore)
|| coalesce(NEW.extratags, ''::hstore);
-- mark the linked place (excludes from search results)
UPDATE placex set linked_place_id = NEW.place_id
WHERE place_id = linkedPlacex.place_id;
WHERE place_id = location.place_id;
SELECT wikipedia, importance
FROM compute_importance(linkedPlacex.extratags, NEW.country_code,
'N', linkedPlacex.osm_id)
FROM compute_importance(location.extratags, NEW.country_code,
'N', location.osm_id)
INTO linked_wikipedia,linked_importance;
-- Use the maximum importance if a one could be computed from the linked object.
-- Use the maximum importance if one could be computed from the linked object.
IF linked_importance is not null AND
(NEW.importance is null or NEW.importance < linked_importance)
THEN
NEW.importance = linked_importance;
END IF;
END IF;
END LOOP;
-- What level are we searching from
search_maxrank := NEW.rank_search;
-- Initialise the name vector using our name
NEW.name := add_default_place_name(NEW.country_code, NEW.name);
name_vector := make_keywords(NEW.name);
nameaddress_vector := '{}'::int[];
-- make sure all names are in the word table
IF NEW.admin_level = 2 AND NEW.class = 'boundary' AND NEW.type = 'administrative' AND NEW.country_code IS NOT NULL AND NEW.osm_type = 'R' THEN
perform create_country(NEW.name, lower(NEW.country_code));
IF NEW.admin_level = 2
AND NEW.class = 'boundary' AND NEW.type = 'administrative'
AND NEW.country_code IS NOT NULL AND NEW.osm_type = 'R'
THEN
PERFORM create_country(NEW.name, lower(NEW.country_code));
--DEBUG: RAISE WARNING 'Country names updated';
END IF;
FOR i IN 1..28 LOOP
address_havelevel[i] := false;
END LOOP;
NEW.parent_place_id = 0;
parent_place_id_rank = 0;
@@ -808,13 +780,13 @@ BEGIN
location_parent := NULL;
-- added ourself as address already
address_havelevel[NEW.rank_address] := true;
--DEBUG: RAISE WARNING ' getNearFeatures(%,''%'',%,''%'')',NEW.partition, place_centroid, search_maxrank, isin_tokens;
--DEBUG: RAISE WARNING ' getNearFeatures(%,''%'',%,''%'')',NEW.partition, NEW.centroid, search_maxrank, isin_tokens;
FOR location IN
SELECT * from getNearFeatures(NEW.partition,
CASE WHEN NEW.rank_search >= 26
AND NEW.rank_search < 30
THEN NEW.geometry
ELSE place_centroid END,
ELSE NEW.centroid END,
search_maxrank, isin_tokens)
LOOP
IF location.rank_address != location_rank_search THEN
@@ -911,16 +883,11 @@ BEGIN
nameaddress_vector, centroid)
VALUES (NEW.place_id, NEW.rank_search, NEW.rank_address,
NEW.importance, NEW.country_code, name_vector,
nameaddress_vector, place_centroid);
nameaddress_vector, NEW.centroid);
END IF;
END IF;
-- If we've not managed to pick up a better one - default centroid
IF NEW.centroid IS NULL THEN
NEW.centroid := place_centroid;
END IF;
--DEBUG: RAISE WARNING 'place update % % finsihed.', NEW.osm_type, NEW.osm_id;
RETURN NEW;