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Merge pull request #2077 from lonvia/optimize-large-rank-0-areas

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Restrict size of features that get a full address search
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Sarah Hoffmann 2020-11-26 14:40:54 +01:00 committed by GitHub
commit 2e5c8b5cd3
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1 changed files with 20 additions and 9 deletions
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29
sql/functions/placex_triggers.sql
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@ -508,7 +508,7 @@ DECLARE
location RECORD;
relation_members TEXT[];
centroid GEOMETRY;
geom GEOMETRY;
parent_address_level SMALLINT;
place_address_level SMALLINT;
@ -849,9 +849,9 @@ BEGIN
-- Use the linked point as the centre point of the geometry,
-- but only if it is within the area of the boundary.
centroid := coalesce(location.centroid, ST_Centroid(location.geometry));
IF centroid is not NULL AND ST_Within(centroid, NEW.geometry) THEN
NEW.centroid := centroid;
geom := coalesce(location.centroid, ST_Centroid(location.geometry));
IF geom is not NULL AND ST_Within(geom, NEW.geometry) THEN
NEW.centroid := geom;
END IF;
--DEBUG: RAISE WARNING 'parent address: % rank address: %', parent_address_level, location.rank_address;
@ -918,8 +918,23 @@ BEGIN
--DEBUG: RAISE WARNING 'Country names updated';
END IF;
-- For linear features we need the full geometry for determining the address
-- because they may go through several administrative entities. Otherwise use
-- the centroid for performance reasons.
IF ST_GeometryType(NEW.geometry) in ('ST_LineString', 'ST_MultiLineString') THEN
geom := NEW.geometry;
ELSE
geom := NEW.centroid;
END IF;
IF NEW.rank_address = 0 THEN
max_rank := geometry_to_rank(NEW.rank_search, NEW.geometry, NEW.country_code);
-- Rank 0 features may also span multiple administrative areas (e.g. lakes)
-- so use the geometry here too. Just make sure the areas don't become too
-- large.
IF NEW.class = 'natural' or max_rank > 10 THEN
geom := NEW.geometry;
END IF;
ELSEIF NEW.rank_address > 25 THEN
max_rank := 25;
ELSE
@ -927,11 +942,7 @@ BEGIN
END IF;
SELECT * FROM insert_addresslines(NEW.place_id, NEW.partition, max_rank,
NEW.address,
CASE WHEN (NEW.rank_address = 0 or
NEW.rank_search between 26 and 29)
THEN NEW.geometry ELSE NEW.centroid END,
NEW.country_code)
NEW.address, geom, NEW.country_code)
INTO NEW.parent_place_id, NEW.postcode, nameaddress_vector;
--DEBUG: RAISE WARNING 'RETURN insert_addresslines: %, %, %', NEW.parent_place_id, NEW.postcode, nameaddress_vector;