Nominatim/nominatim/tools/admin.py
2021-02-08 22:22:49 +01:00

50 lines
1.7 KiB
Python

"""
Functions for database analysis and maintenance.
"""
import logging
from ..errors import UsageError
LOG = logging.getLogger()
def analyse_indexing(conn, osm_id=None, place_id=None):
""" Analyse indexing of a single Nominatim object.
"""
with conn.cursor() as cur:
if osm_id:
osm_type = osm_id[0].upper()
if osm_type not in 'NWR' or not osm_id[1:].isdigit():
LOG.fatal('OSM ID must be of form <N|W|R><id>. Got: %s', osm_id)
raise UsageError("OSM ID parameter badly formatted")
cur.execute('SELECT place_id FROM placex WHERE osm_type = %s AND osm_id = %s',
(osm_type, osm_id[1:]))
if cur.rowcount < 1:
LOG.fatal("OSM object %s not found in database.", osm_id)
raise UsageError("OSM object not found")
place_id = cur.fetchone()[0]
if place_id is None:
LOG.fatal("No OSM object given to index.")
raise UsageError("OSM object not found")
cur.execute("update placex set indexed_status = 2 where place_id = %s",
(place_id, ))
cur.execute("""SET auto_explain.log_min_duration = '0';
SET auto_explain.log_analyze = 'true';
SET auto_explain.log_nested_statements = 'true';
LOAD 'auto_explain';
SET client_min_messages = LOG;
SET log_min_messages = FATAL""")
cur.execute("update placex set indexed_status = 0 where place_id = %s",
(place_id, ))
# we do not want to keep the results
conn.rollback()
for msg in conn.notices:
print(msg)