+
+
+@_migration(4, 0, 99, 4)
+def add_derived_name_column_for_country_names(conn: Connection, **_: Any) -> None:
+ """ Add a new column 'derived_name' which in the future takes the
+ country names as imported from OSM data.
+ """
+ if not conn.table_has_column('country_name', 'derived_name'):
+ with conn.cursor() as cur:
+ cur.execute("ALTER TABLE country_name ADD COLUMN derived_name public.HSTORE")
+
+
+@_migration(4, 0, 99, 5)
+def mark_internal_country_names(conn: Connection, config: Configuration, **_: Any) -> None:
+ """ Names from the country table should be marked as internal to prevent
+ them from being deleted. Only necessary for ICU tokenizer.
+ """
+ import psycopg2.extras # pylint: disable=import-outside-toplevel
+
+ tokenizer = tokenizer_factory.get_tokenizer_for_db(config)
+ with tokenizer.name_analyzer() as analyzer:
+ with conn.cursor() as cur:
+ psycopg2.extras.register_hstore(cur)
+ cur.execute("SELECT country_code, name FROM country_name")
+
+ for country_code, names in cur:
+ if not names:
+ names = {}
+ names['countrycode'] = country_code
+ analyzer.add_country_names(country_code, names)
+
+
+@_migration(4, 1, 99, 0)
+def add_place_deletion_todo_table(conn: Connection, **_: Any) -> None:
+ """ Add helper table for deleting data on updates.
+
+ The table is only necessary when updates are possible, i.e.
+ the database is not in freeze mode.
+ """
+ if conn.table_exists('place'):
+ with conn.cursor() as cur:
+ cur.execute("""CREATE TABLE IF NOT EXISTS place_to_be_deleted (
+ osm_type CHAR(1),
+ osm_id BIGINT,
+ class TEXT,
+ type TEXT,
+ deferred BOOLEAN)""")
+
+
+@_migration(4, 1, 99, 1)
+def split_pending_index(conn: Connection, **_: Any) -> None:
+ """ Reorganise indexes for pending updates.
+ """
+ if conn.table_exists('place'):
+ with conn.cursor() as cur:
+ cur.execute("""CREATE INDEX IF NOT EXISTS idx_placex_rank_address_sector
+ ON placex USING BTREE (rank_address, geometry_sector)
+ WHERE indexed_status > 0""")
+ cur.execute("""CREATE INDEX IF NOT EXISTS idx_placex_rank_boundaries_sector
+ ON placex USING BTREE (rank_search, geometry_sector)
+ WHERE class = 'boundary' and type = 'administrative'
+ and indexed_status > 0""")
+ cur.execute("DROP INDEX IF EXISTS idx_placex_pendingsector")
+
+
+@_migration(4, 2, 99, 0)
+def enable_forward_dependencies(conn: Connection, **_: Any) -> None:
+ """ Create indexes for updates with forward dependency tracking (long-running).
+ """
+ if conn.table_exists('planet_osm_ways'):
+ with conn.cursor() as cur:
+ cur.execute("""SELECT * FROM pg_indexes
+ WHERE tablename = 'planet_osm_ways'
+ and indexdef LIKE '%nodes%'""")
+ if cur.rowcount == 0:
+ cur.execute("""CREATE OR REPLACE FUNCTION public.planet_osm_index_bucket(bigint[])
+ RETURNS bigint[]
+ LANGUAGE sql IMMUTABLE
+ AS $function$
+ SELECT ARRAY(SELECT DISTINCT unnest($1) >> 5)
+ $function$""")
+ cur.execute("""CREATE INDEX planet_osm_ways_nodes_bucket_idx
+ ON planet_osm_ways
+ USING gin (planet_osm_index_bucket(nodes))
+ WITH (fastupdate=off)""")
+ cur.execute("""CREATE INDEX planet_osm_rels_parts_idx
+ ON planet_osm_rels USING gin (parts)
+ WITH (fastupdate=off)""")
+ cur.execute("ANALYZE planet_osm_ways")
+
+
+@_migration(4, 2, 99, 1)
+def add_improved_geometry_reverse_placenode_index(conn: Connection, **_: Any) -> None:
+ """ Create improved index for reverse lookup of place nodes.
+ """
+ with conn.cursor() as cur:
+ cur.execute("""CREATE INDEX IF NOT EXISTS idx_placex_geometry_reverse_lookupPlaceNode
+ ON placex
+ USING gist (ST_Buffer(geometry, reverse_place_diameter(rank_search)))
+ WHERE rank_address between 4 and 25 AND type != 'postcode'
+ AND name is not null AND linked_place_id is null AND osm_type = 'N'
+ """)
projects / nominatim.git / blobdiff