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recreate place objects when admin_level changes

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Also added a sanity check to ensure that accidental removal of admin_level
tags on large areas doesn't cause huge reindexing load. That can be disabled
by setting CONST_Limit_Reindexing to false.
This commit is contained in:
Sarah Hoffmann
2014-02-07 23:37:54 +01:00
parent dbdf767030
commit 98b93df83d
3 changed files with 16 additions and 3 deletions
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17
sql/functions.sql
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@@ -1953,7 +1953,7 @@ BEGIN
-- mark everything linked to this place for re-indexing
--DEBUG: RAISE WARNING 'placex_delete:03 % %',OLD.osm_type,OLD.osm_id;
UPDATE placex set indexed_status = 2 from place_addressline where address_place_id = OLD.place_id
and placex.place_id = place_addressline.place_id and indexed_status = 0;
and placex.place_id = place_addressline.place_id and indexed_status = 0 and place_addressline.isaddress;
--DEBUG: RAISE WARNING 'placex_delete:04 % %',OLD.osm_type,OLD.osm_id;
DELETE FROM place_addressline where address_place_id = OLD.place_id;
@@ -2090,8 +2090,19 @@ BEGIN
DELETE from import_polygon_error where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
DELETE from import_polygon_delete where osm_type = NEW.osm_type and osm_id = NEW.osm_id;
-- To paraphrase, if there isn't an existing item, OR if the admin level has changed, OR if it is a major change in geometry
IF existingplacex.osm_type IS NULL THEN
-- To paraphrase, if there isn't an existing item, OR if the admin level has changed
IF existingplacex.osm_type IS NULL OR
coalesce(existingplacex.admin_level, 15) != coalesce(NEW.admin_level, 15)
THEN
IF existingplacex.osm_type IS NOT NULL THEN
-- sanity check: ignore admin_level changes on places with too many active children
-- or we end up reindexing entire countries because somebody accidentally deleted admin_level
--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;
--LIMIT INDEXING: IF i > 100000 THEN
--LIMIT INDEXING: RETURN null;
--LIMIT INDEXING: END IF;
END IF;
IF existing.osm_type IS NOT NULL THEN
-- pathological case caused by the triggerless copy into place during initial import