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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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1
settings/settings.php
View File

@ -6,6 +6,7 @@
@define('CONST_Debug', false);
@define('CONST_Database_DSN', 'pgsql://@/nominatim'); // <driver>://<username>:<password>@<host>:<port>/<database>
@define('CONST_Max_Word_Frequency', '50000');
@define('CONST_Limit_Reindexing', true);
// Software versions
@define('CONST_Postgresql_Version', '9.1'); // values: 8.3, 8.4, 9.0, 9.1, 9.2

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

1
utils/setup.php
View File

@ -197,6 +197,7 @@
$sTemplate = str_replace('{modulepath}', CONST_BasePath.'/module', $sTemplate);
if ($aCMDResult['enable-diff-updates']) $sTemplate = str_replace('RETURN NEW; -- @DIFFUPDATES@', '--', $sTemplate);
if ($aCMDResult['enable-debug-statements']) $sTemplate = str_replace('--DEBUG:', '', $sTemplate);
if (CONST_Limit_Reindexing) $sTemplate = str_replace('--LIMIT INDEXING:', '', $sTemplate);
pgsqlRunScript($sTemplate);
}