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

diff --git a/nominatim/tools/migration.py b/nominatim/tools/migration.py
index 284bd3166f8648cf18b0554c9368dc0368579ccf..28a14455066f689fad6b93a05a78ddd8c0014fe0 100644 (file)
--- a/nominatim/tools/migration.py
+++ b/nominatim/tools/migration.py
@@ -9,9 +9,11 @@ Functions for database migration to newer software versions.
 """
 import logging
 
 """
 import logging
 

+from psycopg2 import sql as pysql
+

 from nominatim.db import properties
 from nominatim.db.connection import connect
 from nominatim.db import properties
 from nominatim.db.connection import connect

-from nominatim.version import NOMINATIM_VERSION
+from nominatim.version import NOMINATIM_VERSION, version_str

 from nominatim.tools import refresh
 from nominatim.tokenizer import factory as tokenizer_factory
 from nominatim.errors import UsageError
 from nominatim.tools import refresh
 from nominatim.tokenizer import factory as tokenizer_factory
 from nominatim.errors import UsageError


@@ -47,7 +49,7 @@ def migrate(config, paths):
         for version, func in _MIGRATION_FUNCTIONS:
             if db_version <= version:
                 LOG.warning("Runnning: %s (%s)", func.__doc__.split('\n', 1)[0],
         for version, func in _MIGRATION_FUNCTIONS:
             if db_version <= version:
                 LOG.warning("Runnning: %s (%s)", func.__doc__.split('\n', 1)[0],

-                            '{0[0]}.{0[1]}.{0[2]}-{0[3]}'.format(version))
+                            version_str(version))

                 kwargs = dict(conn=conn, config=config, paths=paths)
                 func(**kwargs)
                 conn.commit()
                 kwargs = dict(conn=conn, config=config, paths=paths)
                 func(**kwargs)
                 conn.commit()


@@ -59,8 +61,7 @@ def migrate(config, paths):
             tokenizer = tokenizer_factory.get_tokenizer_for_db(config)
             tokenizer.update_sql_functions(config)
 
             tokenizer = tokenizer_factory.get_tokenizer_for_db(config)
             tokenizer.update_sql_functions(config)
 

-        properties.set_property(conn, 'database_version',
-                                '{0[0]}.{0[1]}.{0[2]}-{0[3]}'.format(NOMINATIM_VERSION))
+        properties.set_property(conn, 'database_version', version_str())

 
         conn.commit()
 
 
         conn.commit()
 


@@ -125,11 +126,11 @@ def add_nominatim_property_table(conn, config, **_):
     """
     if not conn.table_exists('nominatim_properties'):
         with conn.cursor() as cur:
     """
     if not conn.table_exists('nominatim_properties'):
         with conn.cursor() as cur:

-            cur.execute("""CREATE TABLE nominatim_properties (
-                               property TEXT,
-                               value TEXT);
-                           GRANT SELECT ON TABLE nominatim_properties TO "{}";
-                        """.format(config.DATABASE_WEBUSER))
+            cur.execute(pysql.SQL("""CREATE TABLE nominatim_properties (
+                                        property TEXT,
+                                        value TEXT);
+                                     GRANT SELECT ON TABLE nominatim_properties TO {};
+                                  """).format(pysql.Identifier(config.DATABASE_WEBUSER)))

 
 @_migration(3, 6, 0, 0)
 def change_housenumber_transliteration(conn, **_):
 
 @_migration(3, 6, 0, 0)
 def change_housenumber_transliteration(conn, **_):


@@ -194,7 +195,8 @@ def install_legacy_tokenizer(conn, config, **_):
                                            and column_name = 'token_info'""",
                                         (table, ))
                 if has_column == 0:
                                            and column_name = 'token_info'""",
                                         (table, ))
                 if has_column == 0:

-                    cur.execute('ALTER TABLE {} ADD COLUMN token_info JSONB'.format(table))
+                    cur.execute(pysql.SQL('ALTER TABLE {} ADD COLUMN token_info JSONB')
+                                .format(pysql.Identifier(table)))

         tokenizer = tokenizer_factory.create_tokenizer(config, init_db=False,
                                                        module_name='legacy')
 
         tokenizer = tokenizer_factory.create_tokenizer(config, init_db=False,
                                                        module_name='legacy')
 


@@ -227,3 +229,83 @@ def create_interpolation_index_on_place(conn, **_):
         cur.execute("""CREATE INDEX IF NOT EXISTS idx_place_interpolations
                        ON place USING gist(geometry)
                        WHERE osm_type = 'W' and address ? 'interpolation'""")
         cur.execute("""CREATE INDEX IF NOT EXISTS idx_place_interpolations
                        ON place USING gist(geometry)
                        WHERE osm_type = 'W' and address ? 'interpolation'""")

+
+
+@_migration(4, 0, 99, 2)
+def add_step_column_for_interpolation(conn, **_):
+    """ Add a new column 'step' to the interpolations table.
+
+        Also convers the data into the stricter format which requires that
+        startnumbers comply with the odd/even requirements.
+    """
+    if conn.table_has_column('location_property_osmline', 'step'):
+        return
+
+    with conn.cursor() as cur:
+        # Mark invalid all interpolations with no intermediate numbers.
+        cur.execute("""UPDATE location_property_osmline SET startnumber = null
+                       WHERE endnumber - startnumber <= 1 """)
+        # Align the start numbers where odd/even does not match.
+        cur.execute("""UPDATE location_property_osmline
+                       SET startnumber = startnumber + 1,
+                           linegeo = ST_LineSubString(linegeo,
+                                                      1.0 / (endnumber - startnumber)::float,
+                                                      1)
+                       WHERE (interpolationtype = 'odd' and startnumber % 2 = 0)
+                              or (interpolationtype = 'even' and startnumber % 2 = 1)
+                    """)
+        # Mark invalid odd/even interpolations with no intermediate numbers.
+        cur.execute("""UPDATE location_property_osmline SET startnumber = null
+                       WHERE interpolationtype in ('odd', 'even')
+                             and endnumber - startnumber = 2""")
+        # Finally add the new column and populate it.
+        cur.execute("ALTER TABLE location_property_osmline ADD COLUMN step SMALLINT")
+        cur.execute("""UPDATE location_property_osmline
+                         SET step = CASE WHEN interpolationtype = 'all'
+                                         THEN 1 ELSE 2 END
+                    """)
+
+
+@_migration(4, 0, 99, 3)
+def add_step_column_for_tiger(conn, **_):
+    """ Add a new column 'step' to the tiger data table.
+    """
+    if conn.table_has_column('location_property_tiger', 'step'):
+        return
+
+    with conn.cursor() as cur:
+        cur.execute("ALTER TABLE location_property_tiger ADD COLUMN step SMALLINT")
+        cur.execute("""UPDATE location_property_tiger
+                         SET step = CASE WHEN interpolationtype = 'all'
+                                         THEN 1 ELSE 2 END
+                    """)
+
+
+@_migration(4, 0, 99, 4)
+def add_derived_name_column_for_country_names(conn, **_):
+    """ 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, config, **_):
+    """ 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)