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https://github.com/osm-search/Nominatim.git
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rename sql directory to lib-sql
Also introduces a separate constant for the sql directory, so that it can be put separately from the rest of the data if required.
This commit is contained in:
Sarah Hoffmann
284
lib-sql/functions/place_triggers.sql
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284
lib-sql/functions/place_triggers.sql
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CREATE OR REPLACE FUNCTION place_insert()
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RETURNS TRIGGER
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AS $$
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DECLARE
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i INTEGER;
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existing RECORD;
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existingplacex RECORD;
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existingline RECORD;
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existinggeometry GEOMETRY;
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existingplace_id BIGINT;
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result BOOLEAN;
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partition INTEGER;
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BEGIN
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--DEBUG: RAISE WARNING '-----------------------------------------------------------------------------------';
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--DEBUG: RAISE WARNING 'place_insert: % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,st_area(NEW.geometry);
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-- filter wrong tupels
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IF ST_IsEmpty(NEW.geometry) OR NOT ST_IsValid(NEW.geometry) OR ST_X(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') OR ST_Y(ST_Centroid(NEW.geometry))::text in ('NaN','Infinity','-Infinity') THEN
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INSERT INTO import_polygon_error (osm_type, osm_id, class, type, name, country_code, updated, errormessage, prevgeometry, newgeometry)
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VALUES (NEW.osm_type, NEW.osm_id, NEW.class, NEW.type, NEW.name, NEW.address->'country', now(), ST_IsValidReason(NEW.geometry), null, NEW.geometry);
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-- RAISE WARNING 'Invalid Geometry: % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type;
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RETURN null;
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END IF;
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-- decide, whether it is an osm interpolation line => insert intoosmline, or else just placex
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IF NEW.class='place' and NEW.type='houses' and NEW.osm_type='W' and ST_GeometryType(NEW.geometry) = 'ST_LineString' THEN
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-- Have we already done this place?
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select * from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existing;
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-- Get the existing place_id
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select * from location_property_osmline where osm_id = NEW.osm_id INTO existingline;
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-- Handle a place changing type by removing the old data (this trigger is executed BEFORE INSERT of the NEW tupel)
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IF existing.osm_type IS NULL THEN
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DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class;
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END IF;
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DELETE from import_polygon_error where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
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DELETE from import_polygon_delete where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
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-- update method for interpolation lines: delete all old interpolation lines with same osm_id (update on place) and insert the new one(s) (they can be split up, if they have > 2 nodes)
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IF existingline.osm_id IS NOT NULL THEN
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delete from location_property_osmline where osm_id = NEW.osm_id;
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END IF;
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-- for interpolations invalidate all nodes on the line
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update placex p set indexed_status = 2
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from planet_osm_ways w
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where w.id = NEW.osm_id and p.osm_type = 'N' and p.osm_id = any(w.nodes);
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INSERT INTO location_property_osmline (osm_id, address, linegeo)
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VALUES (NEW.osm_id, NEW.address, NEW.geometry);
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IF existing.osm_type IS NULL THEN
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return NEW;
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END IF;
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IF coalesce(existing.address, ''::hstore) != coalesce(NEW.address, ''::hstore)
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OR (coalesce(existing.extratags, ''::hstore) != coalesce(NEW.extratags, ''::hstore))
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OR existing.geometry::text != NEW.geometry::text
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THEN
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update place set
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name = NEW.name,
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address = NEW.address,
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extratags = NEW.extratags,
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admin_level = NEW.admin_level,
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geometry = NEW.geometry
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where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
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END IF;
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RETURN NULL;
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ELSE -- insert to placex
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-- Patch in additional country names
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IF NEW.admin_level = 2 AND NEW.type = 'administrative'
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AND NEW.address is not NULL AND NEW.address ? 'country' THEN
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SELECT name FROM country_name WHERE country_code = lower(NEW.address->'country') INTO existing;
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IF existing.name IS NOT NULL THEN
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NEW.name = existing.name || NEW.name;
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END IF;
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END IF;
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-- Have we already done this place?
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select * from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existing;
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-- Get the existing place_id
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select * from placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type INTO existingplacex;
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-- Handle a place changing type by removing the old data
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-- My generated 'place' types are causing havok because they overlap with real keys
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-- TODO: move them to their own special purpose key/class to avoid collisions
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IF existing.osm_type IS NULL THEN
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DELETE FROM place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class;
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END IF;
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--DEBUG: RAISE WARNING 'Existing: %',existing.osm_id;
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--DEBUG: RAISE WARNING 'Existing PlaceX: %',existingplacex.place_id;
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-- Log and discard
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IF existing.geometry is not null AND st_isvalid(existing.geometry)
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AND st_area(existing.geometry) > 0.02
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AND ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon')
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AND st_area(NEW.geometry) < st_area(existing.geometry)*0.5
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THEN
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INSERT INTO import_polygon_error (osm_type, osm_id, class, type, name, country_code, updated, errormessage, prevgeometry, newgeometry)
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VALUES (NEW.osm_type, NEW.osm_id, NEW.class, NEW.type, NEW.name, NEW.address->'country', now(),
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'Area reduced from '||st_area(existing.geometry)||' to '||st_area(NEW.geometry), existing.geometry, NEW.geometry);
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RETURN null;
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END IF;
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DELETE from import_polygon_error where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
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DELETE from import_polygon_delete where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
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-- To paraphrase, if there isn't an existing item, OR if the admin level has changed
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IF existingplacex.osm_type IS NULL OR
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(existingplacex.class = 'boundary' AND
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((coalesce(existingplacex.admin_level, 15) != coalesce(NEW.admin_level, 15) AND existingplacex.type = 'administrative') OR
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(existingplacex.type != NEW.type)))
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THEN
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IF existingplacex.osm_type IS NOT NULL THEN
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-- sanity check: ignore admin_level changes on places with too many active children
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-- or we end up reindexing entire countries because somebody accidentally deleted admin_level
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--LIMIT INDEXING: SELECT count(*) FROM (SELECT 'a' FROM placex , place_addressline where address_place_id = existingplacex.place_id and placex.place_id = place_addressline.place_id and indexed_status = 0 and place_addressline.isaddress LIMIT 100001) sub INTO i;
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--LIMIT INDEXING: IF i > 100000 THEN
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--LIMIT INDEXING: RETURN null;
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--LIMIT INDEXING: END IF;
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END IF;
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IF existing.osm_type IS NOT NULL THEN
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-- pathological case caused by the triggerless copy into place during initial import
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-- force delete even for large areas, it will be reinserted later
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UPDATE place set geometry = ST_SetSRID(ST_Point(0,0), 4326) where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
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DELETE from place where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
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END IF;
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-- No - process it as a new insertion (hopefully of low rank or it will be slow)
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insert into placex (osm_type, osm_id, class, type, name,
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admin_level, address, extratags, geometry)
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values (NEW.osm_type, NEW.osm_id, NEW.class, NEW.type, NEW.name,
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NEW.admin_level, NEW.address, NEW.extratags, NEW.geometry);
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--DEBUG: RAISE WARNING 'insert done % % % % %',NEW.osm_type,NEW.osm_id,NEW.class,NEW.type,NEW.name;
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RETURN NEW;
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END IF;
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-- Special case for polygon shape changes because they tend to be large and we can be a bit clever about how we handle them
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IF existing.geometry::text != NEW.geometry::text
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AND ST_GeometryType(existing.geometry) in ('ST_Polygon','ST_MultiPolygon')
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AND ST_GeometryType(NEW.geometry) in ('ST_Polygon','ST_MultiPolygon')
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THEN
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-- Get the version of the geometry actually used (in placex table)
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select geometry from placex where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type into existinggeometry;
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-- Performance limit
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IF st_area(NEW.geometry) < 0.000000001 AND st_area(existinggeometry) < 1 THEN
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-- re-index points that have moved in / out of the polygon, could be done as a single query but postgres gets the index usage wrong
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update placex set indexed_status = 2 where indexed_status = 0
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AND ST_Intersects(NEW.geometry, placex.geometry)
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AND NOT ST_Intersects(existinggeometry, placex.geometry)
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AND rank_search > existingplacex.rank_search AND (rank_search < 28 or name is not null);
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update placex set indexed_status = 2 where indexed_status = 0
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AND ST_Intersects(existinggeometry, placex.geometry)
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AND NOT ST_Intersects(NEW.geometry, placex.geometry)
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AND rank_search > existingplacex.rank_search AND (rank_search < 28 or name is not null);
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END IF;
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END IF;
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IF coalesce(existing.name::text, '') != coalesce(NEW.name::text, '')
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OR coalesce(existing.extratags::text, '') != coalesce(NEW.extratags::text, '')
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OR coalesce(existing.address, ''::hstore) != coalesce(NEW.address, ''::hstore)
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OR coalesce(existing.admin_level, 15) != coalesce(NEW.admin_level, 15)
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OR existing.geometry::text != NEW.geometry::text
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THEN
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update place set
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name = NEW.name,
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address = NEW.address,
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extratags = NEW.extratags,
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admin_level = NEW.admin_level,
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geometry = NEW.geometry
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where osm_type = NEW.osm_type and osm_id = NEW.osm_id and class = NEW.class and type = NEW.type;
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IF NEW.class in ('place','boundary') AND NEW.type in ('postcode','postal_code') THEN
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IF NEW.address is NULL OR NOT NEW.address ? 'postcode' THEN
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-- postcode was deleted, no longer retain in placex
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DELETE FROM placex where place_id = existingplacex.place_id;
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RETURN NULL;
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END IF;
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NEW.name := hstore('ref', NEW.address->'postcode');
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END IF;
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IF NEW.class in ('boundary')
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AND ST_GeometryType(NEW.geometry) not in ('ST_Polygon','ST_MultiPolygon') THEN
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DELETE FROM placex where place_id = existingplacex.place_id;
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RETURN NULL;
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END IF;
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update placex set
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name = NEW.name,
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address = NEW.address,
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parent_place_id = null,
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extratags = NEW.extratags,
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admin_level = NEW.admin_level,
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indexed_status = 2,
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geometry = NEW.geometry
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where place_id = existingplacex.place_id;
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-- if a node(=>house), which is part of a interpolation line, changes (e.g. the street attribute) => mark this line for reparenting
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-- (already here, because interpolation lines are reindexed before nodes, so in the second call it would be too late)
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IF NEW.osm_type='N'
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and (coalesce(existing.address, ''::hstore) != coalesce(NEW.address, ''::hstore)
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or existing.geometry::text != NEW.geometry::text)
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THEN
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result:= osmline_reinsert(NEW.osm_id, NEW.geometry);
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END IF;
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-- linked places should get potential new naming and addresses
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IF existingplacex.linked_place_id is not NULL THEN
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update placex x set
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name = p.name,
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extratags = p.extratags,
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indexed_status = 2
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from place p
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where x.place_id = existingplacex.linked_place_id
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and x.indexed_status = 0
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and x.osm_type = p.osm_type
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and x.osm_id = p.osm_id
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and x.class = p.class;
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END IF;
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END IF;
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-- Abort the add (we modified the existing place instead)
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RETURN NULL;
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END IF;
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION place_delete()
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RETURNS TRIGGER
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AS $$
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DECLARE
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has_rank BOOLEAN;
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BEGIN
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--DEBUG: RAISE WARNING 'delete: % % % %',OLD.osm_type,OLD.osm_id,OLD.class,OLD.type;
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-- deleting large polygons can have a massive effect on the system - require manual intervention to let them through
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IF st_area(OLD.geometry) > 2 and st_isvalid(OLD.geometry) THEN
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SELECT bool_or(not (rank_address = 0 or rank_address > 25)) as ranked FROM placex WHERE osm_type = OLD.osm_type and osm_id = OLD.osm_id and class = OLD.class and type = OLD.type INTO has_rank;
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IF has_rank THEN
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insert into import_polygon_delete (osm_type, osm_id, class, type) values (OLD.osm_type,OLD.osm_id,OLD.class,OLD.type);
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RETURN NULL;
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END IF;
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END IF;
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-- mark for delete
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UPDATE placex set indexed_status = 100 where osm_type = OLD.osm_type and osm_id = OLD.osm_id and class = OLD.class and type = OLD.type;
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-- interpolations are special
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IF OLD.osm_type='W' and OLD.class = 'place' and OLD.type = 'houses' THEN
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UPDATE location_property_osmline set indexed_status = 100 where osm_id = OLD.osm_id; -- osm_id = wayid (=old.osm_id)
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END IF;
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RETURN OLD;
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END;
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$$
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LANGUAGE plpgsql;
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