remove code only needed for older PostgreSQL/PostGIS versions

[nominatim.git] / src / nominatim_db / db / sql_preprocessor.py

diff --git a/src/nominatim_db/db/sql_preprocessor.py b/src/nominatim_db/db/sql_preprocessor.py
index 468f35107b8f5188a3cbc9b93c9fb3353ef5e322..4424b3d81f9e5088ce2bb014c46d6c74bcc38b93 100644 (file)
--- a/src/nominatim_db/db/sql_preprocessor.py
+++ b/src/nominatim_db/db/sql_preprocessor.py
@@ -8,11 +8,13 @@
 Preprocessing of SQL files.
 """
 from typing import Set, Dict, Any, cast
+
 import jinja2
 
 from .connection import Connection
-from .async_connection import WorkerPool
 from ..config import Configuration
+from ..db.query_pool import QueryPool
+
 
 def _get_partitions(conn: Connection) -> Set[int]:
     """ Get the set of partitions currently in use.
@@ -34,6 +36,7 @@ def _get_tables(conn: Connection) -> Set[str]:
 
         return set((row[0] for row in list(cur)))
 
+
 def _get_middle_db_format(conn: Connection, tables: Set[str]) -> str:
     """ Returns the version of the slim middle tables.
     """
@@ -66,14 +69,8 @@ def _setup_postgresql_features(conn: Connection) -> Dict[str, Any]:
     """ Set up a dictionary with various optional Postgresql/Postgis features that
         depend on the database version.
     """
-    pg_version = conn.server_version_tuple()
-    postgis_version = conn.postgis_version_tuple()
-    pg11plus = pg_version >= (11, 0, 0)
-    ps3 = postgis_version >= (3, 0)
-    return {
-        'has_index_non_key_column': pg11plus,
-        'spgist_geom' : 'SPGIST' if pg11plus and ps3 else 'GIST'
-    }
+    return {}
+
 
 class SQLPreprocessor:
     """ A environment for preprocessing SQL files from the
@@ -101,7 +98,6 @@ class SQLPreprocessor:
         self.env.globals['db'] = db_info
         self.env.globals['postgres'] = _setup_postgresql_features(conn)
 
-
     def run_string(self, conn: Connection, template: str, **kwargs: Any) -> None:
         """ Execute the given SQL template string on the connection.
             The keyword arguments may supply additional parameters
@@ -113,7 +109,6 @@ class SQLPreprocessor:
             cur.execute(sql)
         conn.commit()
 
-
     def run_sql_file(self, conn: Connection, name: str, **kwargs: Any) -> None:
         """ Execute the given SQL file on the connection. The keyword arguments
             may supply additional parameters for preprocessing.
@@ -124,9 +119,8 @@ class SQLPreprocessor:
             cur.execute(sql)
         conn.commit()
 
-
-    def run_parallel_sql_file(self, dsn: str, name: str, num_threads: int = 1,
-                              **kwargs: Any) -> None:
+    async def run_parallel_sql_file(self, dsn: str, name: str, num_threads: int = 1,
+                                    **kwargs: Any) -> None:
         """ Execute the given SQL files using parallel asynchronous connections.
             The keyword arguments may supply additional parameters for
             preprocessing.
@@ -138,6 +132,6 @@ class SQLPreprocessor:
 
         parts = sql.split('\n---\n')
 
-        with WorkerPool(dsn, num_threads) as pool:
+        async with QueryPool(dsn, num_threads) as pool:
             for part in parts:
-                pool.next_free_worker().perform(part)
+                await pool.put_query(part, None)