reorganise address iteration in tokenizer

[nominatim.git] / nominatim / tools / database_import.py

diff --git a/nominatim/tools/database_import.py b/nominatim/tools/database_import.py
index 25efedb9a9a6a5ffb2c165df73e2c8a51f4431b4..400ce7a5bbd0f3a49d366b22a8ed1c32d445b544 100644 (file)
--- a/nominatim/tools/database_import.py
+++ b/nominatim/tools/database_import.py
@@ -5,11 +5,9 @@ import logging
 import os
 import selectors
 import subprocess
-import shutil
 from pathlib import Path
 
 import psutil
-import psycopg2
 
 from nominatim.db.connection import connect, get_pg_env
 from nominatim.db import utils as db_utils
@@ -89,49 +87,6 @@ def setup_extensions(conn):
         raise UsageError('PostGIS version is too old.')
 
 
-def install_module(src_dir, project_dir, module_dir, conn=None):
-    """ Copy the normalization module from src_dir into the project
-        directory under the '/module' directory. If 'module_dir' is set, then
-        use the module from there instead and check that it is accessible
-        for Postgresql.
-
-        The function detects when the installation is run from the
-        build directory. It doesn't touch the module in that case.
-
-        If 'conn' is given, then the function also tests if the module
-        can be access via the given database.
-    """
-    if not module_dir:
-        module_dir = project_dir / 'module'
-
-        if not module_dir.exists() or not src_dir.samefile(module_dir):
-
-            if not module_dir.exists():
-                module_dir.mkdir()
-
-            destfile = module_dir / 'nominatim.so'
-            shutil.copy(str(src_dir / 'nominatim.so'), str(destfile))
-            destfile.chmod(0o755)
-
-            LOG.info('Database module installed at %s', str(destfile))
-        else:
-            LOG.info('Running from build directory. Leaving database module as is.')
-    else:
-        LOG.info("Using custom path for database module at '%s'", module_dir)
-
-    if conn is not None:
-        with conn.cursor() as cur:
-            try:
-                cur.execute("""CREATE FUNCTION nominatim_test_import_func(text)
-                               RETURNS text AS '{}/nominatim.so', 'transliteration'
-                               LANGUAGE c IMMUTABLE STRICT;
-                               DROP FUNCTION nominatim_test_import_func(text)
-                            """.format(module_dir))
-            except psycopg2.DatabaseError as err:
-                LOG.fatal("Error accessing database module: %s", err)
-                raise UsageError("Database module cannot be accessed.") from err
-
-
 def import_base_data(dsn, sql_dir, ignore_partitions=False):
     """ Create and populate the tables with basic static data that provides
         the background for geocoding. Data is assumed to not yet exist.
@@ -205,16 +160,14 @@ def create_partition_tables(conn, config):
     sql.run_sql_file(conn, 'partition-tables.src.sql')
 
 
-def truncate_data_tables(conn, max_word_frequency=None):
+def truncate_data_tables(conn):
     """ Truncate all data tables to prepare for a fresh load.
     """
     with conn.cursor() as cur:
-        cur.execute('TRUNCATE word')
         cur.execute('TRUNCATE placex')
         cur.execute('TRUNCATE place_addressline')
         cur.execute('TRUNCATE location_area')
         cur.execute('TRUNCATE location_area_country')
-        cur.execute('TRUNCATE location_property')
         cur.execute('TRUNCATE location_property_tiger')
         cur.execute('TRUNCATE location_property_osmline')
         cur.execute('TRUNCATE location_postcode')
@@ -229,23 +182,13 @@ def truncate_data_tables(conn, max_word_frequency=None):
         for table in [r[0] for r in list(cur)]:
             cur.execute('TRUNCATE ' + table)
 
-        if max_word_frequency is not None:
-            # Used by getorcreate_word_id to ignore frequent partial words.
-            cur.execute("""CREATE OR REPLACE FUNCTION get_maxwordfreq()
-                           RETURNS integer AS $$
-                             SELECT {} as maxwordfreq;
-                           $$ LANGUAGE SQL IMMUTABLE
-                        """.format(max_word_frequency))
-        conn.commit()
+    conn.commit()
 
 _COPY_COLUMNS = 'osm_type, osm_id, class, type, name, admin_level, address, extratags, geometry'
 
-def load_data(dsn, data_dir, threads):
+def load_data(dsn, threads):
     """ Copy data into the word and placex table.
     """
-    # Pre-calculate the most important terms in the word list.
-    db_utils.execute_file(dsn, data_dir / 'words.sql')
-
     sel = selectors.DefaultSelector()
     # Then copy data from place to placex in <threads - 1> chunks.
     place_threads = max(1, threads - 1)