Automated edits/pnorman

Mechanical edits conducted by pnorman

Repeated empty relation cleanup

Proposed repeated cleanup of v1 relations with no members more than two days old.

Procedure: Generate a list of relations from a pgsnapshot database, load in JOSM, select relations, delete. Intervene manually on any that are children of other relations.

Account to be used: pnorman_mechanical

SELECT r.id 
  FROM relations r 
    LEFT JOIN relation_members rm ON (r.id=rm.relation_id) 
  WHERE tags = ''::hstore 
    AND version=1 
    AND rm.relation_id IS NULL
    AND tstamp < now() - interval '2 days ago';

GVRD CanVec surface correction

Once-off correction of surface=* tagging for CanVec/geobase ways.

basic procedure: download [highway=service][surface=unpaved][source=Geobase_Import_2009] and select version 1 ways by importers. delete surface=unpaved. select modified. delete unnecessary meta-data as described in the email

See https://lists.openstreetmap.org/pipermail/talk-ca/2012-April/004664.html for details.

Empty relations 1

Proposed one-time cleanup of empty relations

Target relations: Those with no members and either no tags or just type=multipolygon

Procedure: identify relations with no members with the SQL

SELECT * FROM relations LEFT JOIN relation_members ON id = relation_id WHERE relation_id IS NULL AND 
(tags=hstore(array[]::varchar[]) or tags=hstore('type','multipolygon')) AND 
tstamp < TIMESTAMP 'now' - INTERVAL '1 day'

Download list of relations in JOSM. Delete relations. If they are members of other relations they will be investigated.

Discussion: https://lists.openstreetmap.org/pipermail/talk/2012-July/063716.html

No replies after asking for uses for these relations, but deleting starting from oldest.

Final sql:

SELECT * FROM relations 
LEFT JOIN relation_members as children ON id = children.relation_id 
LEFT JOIN relation_members AS parents ON (id = parents.member_id AND parents.member_type = 'R') 
WHERE parents.relation_id is NULL AND children.relation_id IS NULL AND
(tags=hstore(ARRAY[]::VARCHAR[]) OR tags=hstore('type','multipolygon')) AND
tstamp < TIMESTAMP 'now' - INTERVAL '1 day'
ORDER BY tstamp;

NHN Tag cleanup

Remove accuracy:meters, attribution, oneway, waterway:type, sub_sea:type

Turn connector ways into waterway=*

Turn rivers into waterway=river

Full details at https://lists.openstreetmap.org/pipermail/talk-ca/2011-February/003715.html