Override connect method in RecorderPool (home-assistant#148490)

Author: emontnemery

homeassistant/components/recorder/pool.py

@@ -12,6 +12,7 @@
 from sqlalchemy.pool import (
     ConnectionPoolEntry,
     NullPool,
+    PoolProxiedConnection,
     SingletonThreadPool,
     StaticPool,
 )
@@ -119,6 +120,12 @@ def _do_get_db_connection_protected(self) -> ConnectionPoolEntry:
         )
         return NullPool._create_connection(self)  # noqa: SLF001
 
+    def connect(self) -> PoolProxiedConnection:
+        """Return a connection from the pool."""
+        if threading.get_ident() in self.recorder_and_worker_thread_ids:
+            return super().connect()
+        return NullPool.connect(self)
+
 
 class MutexPool(StaticPool):
     """A pool which prevents concurrent accesses from multiple threads.