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factor out place linking sql
This commit is contained in:
Sarah Hoffmann
parent
4856f56d61
commit
c3dc66ce9c
@ -1,5 +1,119 @@
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-- Trigger functions for the placex table.
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CREATE OR REPLACE FUNCTION get_rel_node_members(members TEXT[], memberLabels TEXT[])
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RETURNS SETOF BIGINT
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AS $$
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DECLARE
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i INTEGER;
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BEGIN
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FOR i IN 1..ARRAY_UPPER(members,1) BY 2 LOOP
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IF members[i+1] = ANY(memberLabels)
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AND upper(substring(members[i], 1, 1))::char(1) = 'N'
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THEN
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RETURN NEXT substring(members[i], 2)::bigint;
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END IF;
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END LOOP;
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RETURN;
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END;
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$$
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LANGUAGE plpgsql IMMUTABLE;
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-- Try to find a linked place for the given object.
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CREATE OR REPLACE FUNCTION find_linked_place(bnd placex)
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RETURNS placex
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AS $$
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DECLARE
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relation_members TEXT[];
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rel_member RECORD;
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linked_placex placex%ROWTYPE;
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bnd_name TEXT;
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BEGIN
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IF bnd.rank_search >= 26 or bnd.rank_address = 0
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or ST_GeometryType(bnd.geometry) NOT IN ('ST_Polygon','ST_MultiPolygon')
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THEN
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RETURN NULL;
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END IF;
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IF bnd.osm_type = 'R' THEN
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-- see if we have any special relation members
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SELECT members FROM planet_osm_rels WHERE id = bnd.osm_id INTO relation_members;
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--DEBUG: RAISE WARNING 'Got relation members';
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-- Search for relation members with role 'lable'.
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IF relation_members IS NOT NULL THEN
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FOR rel_member IN
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SELECT get_rel_node_members(relation_members, ARRAY['label']) as member
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LOOP
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--DEBUG: RAISE WARNING 'Found label member %', rel_member.member;
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FOR linked_placex IN
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SELECT * from placex
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WHERE osm_type = 'N' and osm_id = rel_member.member
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and class = 'place'
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LOOP
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--DEBUG: RAISE WARNING 'Linked label member';
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RETURN linked_placex;
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END LOOP;
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END LOOP;
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END IF;
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END IF;
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IF bnd.name ? 'name' THEN
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bnd_name := make_standard_name(bnd.name->'name');
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IF bnd_name = '' THEN
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bnd_name := NULL;
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END IF;
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END IF;
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-- Search for relation members with role admin_center.
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IF bnd.osm_type = 'R' and bnd_name is not null
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and relation_members is not null THEN
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FOR rel_member IN
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SELECT get_rel_node_members(relation_members,
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ARRAY['admin_center','admin_centre']) as member
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LOOP
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--DEBUG: RAISE WARNING 'Found admin_center member %', rel_member.member;
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FOR linked_placex IN
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SELECT * from placex
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WHERE osm_type = 'N' and osm_id = rel_member.member
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and class = 'place'
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LOOP
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-- For an admin centre we also want a name match - still not perfect,
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-- for example 'new york, new york'
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-- But that can be fixed by explicitly setting the label in the data
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IF bnd_name = make_standard_name(linked_placex.name->'name')
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AND bnd.rank_address = linked_placex.rank_address
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THEN
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RETURN linked_placex;
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END IF;
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--DEBUG: RAISE WARNING 'Linked admin_center';
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END LOOP;
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END LOOP;
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END IF;
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-- Name searches can be done for ways as well as relations
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IF bnd.osm_type in ('W','R') and bnd_name is not null THEN
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--DEBUG: RAISE WARNING 'Looking for nodes with matching names';
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FOR linked_placex IN
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SELECT placex.* from placex
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WHERE make_standard_name(name->'name') = bnd_name
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AND placex.rank_address = bnd.rank_address
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AND placex.osm_type = 'N'
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AND st_covers(geometry, placex.geometry)
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LOOP
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--DEBUG: RAISE WARNING 'Found matching place node %', linkedPlacex.osm_id;
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RETURN linked_placex;
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END LOOP;
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END IF;
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RETURN NULL;
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END;
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$$
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LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION placex_insert()
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RETURNS TRIGGER
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AS $$
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@ -203,7 +317,6 @@ DECLARE
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way RECORD;
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relation RECORD;
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relation_members TEXT[];
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relMember RECORD;
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linkedplacex RECORD;
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addr_item RECORD;
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search_diameter FLOAT;
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@ -581,137 +694,24 @@ BEGIN
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-- Full indexing
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--DEBUG: RAISE WARNING 'Using full index mode for % %', NEW.osm_type, NEW.osm_id;
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IF NEW.osm_type = 'R' AND NEW.rank_search < 26 THEN
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-- see if we have any special relation members
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select members from planet_osm_rels where id = NEW.osm_id INTO relation_members;
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--DEBUG: RAISE WARNING 'Got relation members';
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IF relation_members IS NOT NULL THEN
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FOR relMember IN select get_osm_rel_members(relation_members,ARRAY['label']) as member LOOP
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--DEBUG: RAISE WARNING 'Found label member %', relMember.member;
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FOR linkedPlacex IN select * from placex where osm_type = upper(substring(relMember.member,1,1))::char(1)
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and osm_id = substring(relMember.member,2,10000)::bigint
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and class = 'place' order by rank_search desc limit 1 LOOP
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FOR linkedPlacex IN SELECT * FROM find_linked_place(NEW) LOOP
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-- If we don't already have one use this as the centre point of the geometry
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IF NEW.centroid IS NULL THEN
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NEW.centroid := coalesce(linkedPlacex.centroid,st_centroid(linkedPlacex.geometry));
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--DEBUG: RAISE WARNING 'Linked %', linkedPlacex;
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NEW.centroid := coalesce(linkedPlacex.centroid,
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ST_Centroid(linkedPlacex.geometry));
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END IF;
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place_centroid := NEW.centroid;
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-- merge in the label name, re-init word vector
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IF NOT linkedPlacex.name IS NULL THEN
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NEW.name := linkedPlacex.name || NEW.name;
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name_vector := array_merge(name_vector, make_keywords(linkedPlacex.name));
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END IF;
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-- merge in extra tags
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NEW.extratags := hstore(linkedPlacex.class, linkedPlacex.type) || coalesce(linkedPlacex.extratags, ''::hstore) || coalesce(NEW.extratags, ''::hstore);
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-- mark the linked place (excludes from search results)
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UPDATE placex set linked_place_id = NEW.place_id where place_id = linkedPlacex.place_id;
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select wikipedia, importance
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FROM compute_importance(linkedPlacex.extratags, NEW.country_code,
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'N', linkedPlacex.osm_id)
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INTO linked_wikipedia,linked_importance;
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--DEBUG: RAISE WARNING 'Linked label member';
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END LOOP;
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END LOOP;
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IF NEW.centroid IS NULL THEN
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FOR relMember IN select get_osm_rel_members(relation_members,ARRAY['admin_center','admin_centre']) as member LOOP
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--DEBUG: RAISE WARNING 'Found admin_center member %', relMember.member;
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FOR linkedPlacex IN select * from placex where osm_type = upper(substring(relMember.member,1,1))::char(1)
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and osm_id = substring(relMember.member,2,10000)::bigint
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and class = 'place' order by rank_search desc limit 1 LOOP
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-- For an admin centre we also want a name match - still not perfect, for example 'new york, new york'
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-- But that can be fixed by explicitly setting the label in the data
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IF make_standard_name(NEW.name->'name') = make_standard_name(linkedPlacex.name->'name')
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AND NEW.rank_address = linkedPlacex.rank_address THEN
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-- If we don't already have one use this as the centre point of the geometry
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IF NEW.centroid IS NULL THEN
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NEW.centroid := coalesce(linkedPlacex.centroid,st_centroid(linkedPlacex.geometry));
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END IF;
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-- merge in the name, re-init word vector
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IF NOT linkedPlacex.name IS NULL THEN
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NEW.name := linkedPlacex.name || NEW.name;
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name_vector := make_keywords(NEW.name);
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END IF;
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-- merge in extra tags
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NEW.extratags := hstore(linkedPlacex.class, linkedPlacex.type) || coalesce(linkedPlacex.extratags, ''::hstore) || coalesce(NEW.extratags, ''::hstore);
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-- mark the linked place (excludes from search results)
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UPDATE placex set linked_place_id = NEW.place_id where place_id = linkedPlacex.place_id;
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select wikipedia, importance
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FROM compute_importance(linkedPlacex.extratags, NEW.country_code,
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'N', linkedPlacex.osm_id)
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INTO linked_wikipedia,linked_importance;
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--DEBUG: RAISE WARNING 'Linked admin_center';
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END IF;
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END LOOP;
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END LOOP;
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END IF;
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END IF;
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END IF;
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-- Name searches can be done for ways as well as relations
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IF NEW.osm_type in ('W','R') AND NEW.rank_search < 26 AND NEW.rank_address > 0 THEN
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-- not found one yet? how about doing a name search
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IF NEW.centroid IS NULL AND (NEW.name->'name') is not null and make_standard_name(NEW.name->'name') != '' THEN
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--DEBUG: RAISE WARNING 'Looking for nodes with matching names';
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FOR linkedPlacex IN select placex.* from placex WHERE
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make_standard_name(name->'name') = make_standard_name(NEW.name->'name')
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AND placex.rank_address = NEW.rank_address
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AND placex.place_id != NEW.place_id
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AND placex.osm_type = 'N'::char(1) AND placex.rank_search < 26
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AND st_covers(NEW.geometry, placex.geometry)
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LOOP
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--DEBUG: RAISE WARNING 'Found matching place node %', linkedPlacex.osm_id;
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-- If we don't already have one use this as the centre point of the geometry
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IF NEW.centroid IS NULL THEN
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NEW.centroid := coalesce(linkedPlacex.centroid,st_centroid(linkedPlacex.geometry));
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END IF;
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-- merge in the name, re-init word vector
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NEW.name := linkedPlacex.name || NEW.name;
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name_vector := make_keywords(NEW.name);
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-- merge in extra tags
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NEW.extratags := hstore(linkedPlacex.class, linkedPlacex.type) || coalesce(linkedPlacex.extratags, ''::hstore) || coalesce(NEW.extratags, ''::hstore);
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-- mark the linked place (excludes from search results)
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UPDATE placex set linked_place_id = NEW.place_id where place_id = linkedPlacex.place_id;
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select wikipedia, importance
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FROM compute_importance(linkedPlacex.extratags, NEW.country_code,
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'N', linkedPlacex.osm_id)
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INTO linked_wikipedia,linked_importance;
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--DEBUG: RAISE WARNING 'Linked named place';
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END LOOP;
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END IF;
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IF NEW.centroid IS NOT NULL THEN
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place_centroid := NEW.centroid;
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-- Place might have had only a name tag before but has now received translations
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-- from the linked place. Make sure a name tag for the default language exists in
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-- this case.
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IF NEW.name is not null AND array_upper(akeys(NEW.name),1) > 1 THEN
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-- Place might have had only a name tag before but has now received
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-- translations from the linked place. Make sure a name tag for the
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-- default language exists in this case.
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IF array_upper(akeys(NEW.name), 1) > 1 THEN
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default_language := get_country_language_code(NEW.country_code);
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IF default_language IS NOT NULL THEN
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IF NEW.name ? 'name' AND NOT NEW.name ? ('name:'||default_language) THEN
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@ -721,15 +721,30 @@ BEGIN
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END IF;
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END IF;
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END IF;
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--DEBUG: RAISE WARNING 'Names updated from linked places';
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END IF;
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-- merge in extra tags
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NEW.extratags := hstore(linkedPlacex.class, linkedPlacex.type)
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|| coalesce(linkedPlacex.extratags, ''::hstore)
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|| coalesce(NEW.extratags, ''::hstore);
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-- mark the linked place (excludes from search results)
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UPDATE placex set linked_place_id = NEW.place_id
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WHERE place_id = linkedPlacex.place_id;
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SELECT wikipedia, importance
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FROM compute_importance(linkedPlacex.extratags, NEW.country_code,
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'N', linkedPlacex.osm_id)
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INTO linked_wikipedia,linked_importance;
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-- Use the maximum importance if a one could be computed from the linked object.
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IF linked_importance is not null AND
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(NEW.importance is null or NEW.importance < linked_importance) THEN
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(NEW.importance is null or NEW.importance < linked_importance)
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THEN
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NEW.importance = linked_importance;
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END IF;
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END IF;
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END LOOP;
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-- make sure all names are in the word table
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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
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@ -338,45 +338,6 @@ $$
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LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION get_osm_rel_members(members TEXT[], member TEXT)
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RETURNS TEXT[]
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AS $$
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DECLARE
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result TEXT[];
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i INTEGER;
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BEGIN
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FOR i IN 1..ARRAY_UPPER(members,1) BY 2 LOOP
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IF members[i+1] = member THEN
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result := result || members[i];
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END IF;
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END LOOP;
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return result;
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END;
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$$
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LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE FUNCTION get_osm_rel_members(members TEXT[], memberLabels TEXT[])
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RETURNS SETOF TEXT
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AS $$
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DECLARE
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i INTEGER;
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BEGIN
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FOR i IN 1..ARRAY_UPPER(members,1) BY 2 LOOP
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IF members[i+1] = ANY(memberLabels) THEN
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RETURN NEXT members[i];
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END IF;
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END LOOP;
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RETURN;
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END;
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$$
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LANGUAGE plpgsql IMMUTABLE;
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CREATE OR REPLACE FUNCTION quad_split_geometry(geometry GEOMETRY, maxarea FLOAT,
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maxdepth INTEGER)
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RETURNS SETOF GEOMETRY
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