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update interpolations instead of deleting and recreating

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This commit is contained in:
Sarah Hoffmann 2022-01-24 16:26:28 +01:00
parent c65938d53c
commit c0d8b95f67
1 changed files with 20 additions and 10 deletions
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30
lib-sql/functions/place_triggers.sql
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@ -13,7 +13,7 @@ DECLARE
country RECORD; country RECORD;
existing RECORD; existing RECORD;
existingplacex RECORD; existingplacex RECORD;
existingline RECORD; existingline BIGINT[];
result BOOLEAN; result BOOLEAN;
BEGIN BEGIN
{% if debug %} {% if debug %}
@ -58,19 +58,29 @@ BEGIN
and NEW.osm_type='W' and ST_GeometryType(NEW.geometry) = 'ST_LineString' and NEW.osm_type='W' and ST_GeometryType(NEW.geometry) = 'ST_LineString'
THEN THEN
-- Get the existing entry from the interpolation table. -- Get the existing entry from the interpolation table.
SELECT * INTO existingline SELECT array_agg(place_id) INTO existingline
FROM location_property_osmline WHERE osm_id = NEW.osm_id; FROM location_property_osmline WHERE osm_id = NEW.osm_id;
-- Update the interpolation table: IF existingline IS NULL or array_length(existingline, 1) = 0 THEN
-- delete all old interpolation lines with same osm_id INSERT INTO location_property_osmline (osm_id, address, linegeo)
-- and insert the new one(s) (they can be split up, if they have > 2 nodes) VALUES (NEW.osm_id, NEW.address, NEW.geometry);
IF existingline.osm_id IS NOT NULL THEN ELSE
DELETE FROM location_property_osmline where osm_id = NEW.osm_id; -- Update the interpolation table:
-- The first entry gets the original data, all other entries
-- are removed and will be recreated on indexing.
-- (An interpolation can be split up, if it has more than 2 address nodes)
UPDATE location_property_osmline
SET address = NEW.address,
linegeo = NEW.geometry,
startnumber = null,
indexed_status = 1
WHERE place_id = existingline[1];
IF array_length(existingline, 1) > 1 THEN
DELETE FROM location_property_osmline
WHERE place_id = any(existingline[2:]);
END IF;
END IF; END IF;
INSERT INTO location_property_osmline (osm_id, address, linegeo)
VALUES (NEW.osm_id, NEW.address, NEW.geometry);
-- Now invalidate all address nodes on the line. -- Now invalidate all address nodes on the line.
-- They get their parent from the interpolation. -- They get their parent from the interpolation.
UPDATE placex p SET indexed_status = 2 UPDATE placex p SET indexed_status = 2