style fixes by ruff

Author: vvkh

data_diff/databases/postgresql.py

@@ -190,8 +190,7 @@ def select_table_schema(self, path: DbPath) -> str:
         if database:
             info_schema_path.insert(0, database)
 
-        return (
-            f"""
+        return f"""
             SELECT column_name, data_type, datetime_precision,
                 CASE
                     WHEN data_type = 'numeric'
@@ -206,7 +205,6 @@ def select_table_schema(self, path: DbPath) -> str:
                 FROM {'.'.join(info_schema_path)}
             WHERE table_name = '{table}' AND table_schema = '{schema}'
             """
-        )
 
     def select_table_unique_columns(self, path: DbPath) -> str:
         database, schema, table = self._normalize_table_path(path)

tests/test_database.py

@@ -146,7 +146,7 @@ def test_specified_precision(self):
         t = table(name)
         raw_schema = db.query_table_schema(t.path)
         schema = db._process_table_schema(t.path, raw_schema)
-        self.assertEqual(schema["value"].precision,  2)
+        self.assertEqual(schema["value"].precision, 2)
 
     def test_specified_zero_precision(self):
         name = "tbl_" + random_table_suffix()