X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/a7a5f0161f27833513b81466fd5d4c57cd7ee4d4..4160c0a1942657f58f44d73e7637b0aaced93e9f:/nominatim/tools/migration.py diff --git a/nominatim/tools/migration.py b/nominatim/tools/migration.py index 28a14455..d5806097 100644 --- a/nominatim/tools/migration.py +++ b/nominatim/tools/migration.py @@ -7,12 +7,14 @@ """ Functions for database migration to newer software versions. """ +from typing import List, Tuple, Callable, Any import logging from psycopg2 import sql as pysql +from nominatim.config import Configuration from nominatim.db import properties -from nominatim.db.connection import connect +from nominatim.db.connection import connect, Connection from nominatim.version import NOMINATIM_VERSION, version_str from nominatim.tools import refresh from nominatim.tokenizer import factory as tokenizer_factory @@ -20,9 +22,11 @@ from nominatim.errors import UsageError LOG = logging.getLogger() -_MIGRATION_FUNCTIONS = [] +VersionTuple = Tuple[int, int, int, int] -def migrate(config, paths): +_MIGRATION_FUNCTIONS : List[Tuple[VersionTuple, Callable[..., None]]] = [] + +def migrate(config: Configuration, paths: Any) -> int: """ Check for the current database version and execute migrations, if necesssary. """ @@ -48,7 +52,8 @@ def migrate(config, paths): has_run_migration = False for version, func in _MIGRATION_FUNCTIONS: if db_version <= version: - LOG.warning("Runnning: %s (%s)", func.__doc__.split('\n', 1)[0], + title = func.__doc__ or '' + LOG.warning("Running: %s (%s)", title.split('\n', 1)[0], version_str(version)) kwargs = dict(conn=conn, config=config, paths=paths) func(**kwargs) @@ -68,7 +73,7 @@ def migrate(config, paths): return 0 -def _guess_version(conn): +def _guess_version(conn: Connection) -> VersionTuple: """ Guess a database version when there is no property table yet. Only migrations for 3.6 and later are supported, so bail out when the version seems older. @@ -88,7 +93,8 @@ def _guess_version(conn): -def _migration(major, minor, patch=0, dbpatch=0): +def _migration(major: int, minor: int, patch: int = 0, + dbpatch: int = 0) -> Callable[[Callable[..., None]], Callable[..., None]]: """ Decorator for a single migration step. The parameters describe the version after which the migration is applicable, i.e before changing from the given version to the next, the migration is required. @@ -101,7 +107,7 @@ def _migration(major, minor, patch=0, dbpatch=0): process, so the migration functions may leave a temporary state behind there. """ - def decorator(func): + def decorator(func: Callable[..., None]) -> Callable[..., None]: _MIGRATION_FUNCTIONS.append(((major, minor, patch, dbpatch), func)) return func @@ -109,7 +115,7 @@ def _migration(major, minor, patch=0, dbpatch=0): @_migration(3, 5, 0, 99) -def import_status_timestamp_change(conn, **_): +def import_status_timestamp_change(conn: Connection, **_: Any) -> None: """ Add timezone to timestamp in status table. The import_status table has been changed to include timezone information @@ -121,7 +127,7 @@ def import_status_timestamp_change(conn, **_): @_migration(3, 5, 0, 99) -def add_nominatim_property_table(conn, config, **_): +def add_nominatim_property_table(conn: Connection, config: Configuration, **_: Any) -> None: """ Add nominatim_property table. """ if not conn.table_exists('nominatim_properties'): @@ -133,7 +139,7 @@ def add_nominatim_property_table(conn, config, **_): """).format(pysql.Identifier(config.DATABASE_WEBUSER))) @_migration(3, 6, 0, 0) -def change_housenumber_transliteration(conn, **_): +def change_housenumber_transliteration(conn: Connection, **_: Any) -> None: """ Transliterate housenumbers. The database schema switched from saving raw housenumbers in @@ -164,7 +170,7 @@ def change_housenumber_transliteration(conn, **_): @_migration(3, 7, 0, 0) -def switch_placenode_geometry_index(conn, **_): +def switch_placenode_geometry_index(conn: Connection, **_: Any) -> None: """ Replace idx_placex_geometry_reverse_placeNode index. Make the index slightly more permissive, so that it can also be used @@ -181,7 +187,7 @@ def switch_placenode_geometry_index(conn, **_): @_migration(3, 7, 0, 1) -def install_legacy_tokenizer(conn, config, **_): +def install_legacy_tokenizer(conn: Connection, config: Configuration, **_: Any) -> None: """ Setup legacy tokenizer. If no other tokenizer has been configured yet, then create the @@ -200,11 +206,11 @@ def install_legacy_tokenizer(conn, config, **_): tokenizer = tokenizer_factory.create_tokenizer(config, init_db=False, module_name='legacy') - tokenizer.migrate_database(config) + tokenizer.migrate_database(config) # type: ignore[attr-defined] @_migration(4, 0, 99, 0) -def create_tiger_housenumber_index(conn, **_): +def create_tiger_housenumber_index(conn: Connection, **_: Any) -> None: """ Create idx_location_property_tiger_parent_place_id with included house number. @@ -221,7 +227,7 @@ def create_tiger_housenumber_index(conn, **_): @_migration(4, 0, 99, 1) -def create_interpolation_index_on_place(conn, **_): +def create_interpolation_index_on_place(conn: Connection, **_: Any) -> None: """ Create idx_place_interpolations for lookup of interpolation lines on updates. """ @@ -232,10 +238,10 @@ def create_interpolation_index_on_place(conn, **_): @_migration(4, 0, 99, 2) -def add_step_column_for_interpolation(conn, **_): +def add_step_column_for_interpolation(conn: Connection, **_: Any) -> None: """ Add a new column 'step' to the interpolations table. - Also convers the data into the stricter format which requires that + Also converts 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'): @@ -267,7 +273,7 @@ def add_step_column_for_interpolation(conn, **_): @_migration(4, 0, 99, 3) -def add_step_column_for_tiger(conn, **_): +def add_step_column_for_tiger(conn: Connection, **_: Any) -> None: """ Add a new column 'step' to the tiger data table. """ if conn.table_has_column('location_property_tiger', 'step'): @@ -282,7 +288,7 @@ def add_step_column_for_tiger(conn, **_): @_migration(4, 0, 99, 4) -def add_derived_name_column_for_country_names(conn, **_): +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. """ @@ -292,7 +298,7 @@ def add_derived_name_column_for_country_names(conn, **_): @_migration(4, 0, 99, 5) -def mark_internal_country_names(conn, config, **_): +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. """ @@ -309,3 +315,20 @@ def mark_internal_country_names(conn, config, **_): 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)""")