Merge remote-tracking branch 'upstream/master'

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

diff --git a/nominatim/db/sql_preprocessor.py b/nominatim/db/sql_preprocessor.py
index 852447525ab26fcb0dc80edf69bfc5096b9c2368..4de53886142f665d4a640539d62b67e98ee374cb 100644 (file)
--- a/nominatim/db/sql_preprocessor.py
+++ b/nominatim/db/sql_preprocessor.py
@@ -1,3 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# This file is part of Nominatim. (https://nominatim.org)
+#
+# Copyright (C) 2022 by the Nominatim developer community.
+# For a full list of authors see the git log.
 """
 Preprocessing of SQL files.
 """
@@ -33,29 +39,26 @@ def _setup_tablespace_sql(config):
     out = {}
     for subset in ('ADDRESS', 'SEARCH', 'AUX'):
         for kind in ('DATA', 'INDEX'):
-            tspace = getattr(config, 'TABLESPACE_{}_{}'.format(subset, kind))
+            tspace = getattr(config, f'TABLESPACE_{subset}_{kind}')
             if tspace:
-                tspace = 'TABLESPACE "{}"'.format(tspace)
-            out['{}_{}'.format(subset.lower, kind.lower())] = tspace
+                tspace = f'TABLESPACE "{tspace}"'
+            out[f'{subset.lower()}_{kind.lower()}'] = tspace
 
     return out
 
 
-def _setup_postgres_sql(conn):
-    """ Set up a dictionary with various Postgresql/Postgis SQL terms which
-        are dependent on the database version in use.
+def _setup_postgresql_features(conn):
+    """ Set up a dictionary with various optional Postgresql/Postgis features that
+        depend on the database version.
     """
-    out = {}
     pg_version = conn.server_version_tuple()
-    # CREATE INDEX IF NOT EXISTS was introduced in PG9.5.
-    # Note that you need to ignore failures on older versions when
-    # unsing this construct.
-    out['if_index_not_exists'] = ' IF NOT EXISTS ' if pg_version >= (9, 5, 0) else ''
-
-    return out
-
+    postgis_version = conn.postgis_version_tuple()
+    return {
+        'has_index_non_key_column': pg_version >= (11, 0, 0),
+        'spgist_geom' : 'SPGIST' if postgis_version >= (3, 0) else 'GIST'
+    }
 
-class SQLPreprocessor: # pylint: disable=too-few-public-methods
+class SQLPreprocessor:
     """ A environment for preprocessing SQL files from the
         lib-sql directory.
 
@@ -66,9 +69,9 @@ class SQLPreprocessor: # pylint: disable=too-few-public-methods
         and follows its syntax.
     """
 
-    def __init__(self, conn, config, sqllib_dir):
+    def __init__(self, conn, config):
         self.env = jinja2.Environment(autoescape=False,
-                                      loader=jinja2.FileSystemLoader(str(sqllib_dir)))
+                                      loader=jinja2.FileSystemLoader(str(config.lib_dir.sql)))
 
         db_info = {}
         db_info['partitions'] = _get_partitions(conn)
@@ -78,9 +81,7 @@ class SQLPreprocessor: # pylint: disable=too-few-public-methods
 
         self.env.globals['config'] = config
         self.env.globals['db'] = db_info
-        self.env.globals['sql'] = _setup_postgres_sql(conn)
-        self.env.globals['modulepath'] = config.DATABASE_MODULE_PATH or \
-                                         str((config.project_dir / 'module').resolve())
+        self.env.globals['postgres'] = _setup_postgresql_features(conn)
 
 
     def run_sql_file(self, conn, name, **kwargs):