Use place instead of placex to compute postcodes

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

diff --git a/nominatim/tools/database_import.py b/nominatim/tools/database_import.py
index 400ce7a5bbd0f3a49d366b22a8ed1c32d445b544..28a10ebeb742f907f4b4efc1c3b2abe9925d40fa 100644 (file)
--- a/nominatim/tools/database_import.py
+++ b/nominatim/tools/database_import.py
@@ -8,6 +8,7 @@ import subprocess
 from pathlib import Path
 
 import psutil
+import psycopg2.extras
 
 from nominatim.db.connection import connect, get_pg_env
 from nominatim.db import utils as db_utils
@@ -198,7 +199,7 @@ def load_data(dsn, threads):
         conn.perform("""INSERT INTO placex ({0})
                          SELECT {0} FROM place
                          WHERE osm_id % {1} = {2}
-                           AND NOT (class='place' and type='houses')
+                           AND NOT (class='place' and (type='houses' or type='postcode'))
                            AND ST_IsValid(geometry)
                      """.format(_COPY_COLUMNS, place_threads, imod))
         sel.register(conn, selectors.EVENT_READ, conn)
@@ -250,34 +251,37 @@ def create_search_indices(conn, config, drop=False):
 
     sql.run_sql_file(conn, 'indices.sql', drop=drop)
 
-def create_country_names(conn, config):
-    """ Create search index for default country names.
+def create_country_names(conn, tokenizer, languages=None):
+    """ Add default country names to search index. `languages` is a comma-
+        separated list of language codes as used in OSM. If `languages` is not
+        empty then only name translations for the given languages are added
+        to the index.
     """
+    if languages:
+        languages = languages.split(',')
+
+    def _include_key(key):
+        return key == 'name' or \
+               (key.startswith('name:') \
+                and (not languages or key[5:] in languages))
 
     with conn.cursor() as cur:
-        cur.execute("""SELECT getorcreate_country(make_standard_name('uk'), 'gb')""")
-        cur.execute("""SELECT getorcreate_country(make_standard_name('united states'), 'us')""")
-        cur.execute("""SELECT COUNT(*) FROM
-                       (SELECT getorcreate_country(make_standard_name(country_code),
-                       country_code) FROM country_name WHERE country_code is not null) AS x""")
-        cur.execute("""SELECT COUNT(*) FROM
-                       (SELECT getorcreate_country(make_standard_name(name->'name'), country_code) 
-                       FROM country_name WHERE name ? 'name') AS x""")
-        sql_statement = """SELECT COUNT(*) FROM (SELECT getorcreate_country(make_standard_name(v),
-                           country_code) FROM (SELECT country_code, skeys(name)
-                           AS k, svals(name) AS v FROM country_name) x WHERE k"""
-
-        languages = config.LANGUAGES
-
-        if languages:
-            sql_statement = "{} IN (".format(sql_statement)
-            delim = ''
-            for language in languages.split(','):
-                sql_statement = "{}{}'name:{}'".format(sql_statement, delim, language)
-                delim = ', '
-            sql_statement = '{})'.format(sql_statement)
-        else:
-            sql_statement = "{} LIKE 'name:%'".format(sql_statement)
-        sql_statement = "{}) v".format(sql_statement)
-        cur.execute(sql_statement)
+        psycopg2.extras.register_hstore(cur)
+        cur.execute("""SELECT country_code, name FROM country_name
+                       WHERE country_code is not null""")
+
+        with tokenizer.name_analyzer() as analyzer:
+            for code, name in cur:
+                names = [code]
+                if code == 'gb':
+                    names.append('UK')
+                if code == 'us':
+                    names.append('United States')
+
+                # country names (only in languages as provided)
+                if name:
+                    names.extend((v for k, v in name.items() if _include_key(k)))
+
+                analyzer.add_country_names(code, names)
+
     conn.commit()