Always use DatabaseURL datatype when instantiating SQLite pool, not str

Author: lovelydinosaur

databases/backends/sqlite.py

@@ -19,7 +19,7 @@ class SQLiteBackend(DatabaseBackend):
     def __init__(self, database_url: typing.Union[DatabaseURL, str]) -> None:
         self._database_url = DatabaseURL(database_url)
         self._dialect = pysqlite.dialect(paramstyle="qmark")
-        self._pool = SQLitePool(database_url)
+        self._pool = SQLitePool(self._database_url)
 
     async def connect(self) -> None:
         pass