Keep failed outbox events retryable

tests/test_postgres_store_adapter.py

@@ -24,6 +24,17 @@ class PostgresStoreAdapterTests(unittest.TestCase):
         self.assertFalse(store.ready)
         self.assertIsNone(store.schema_version)
 
+    def test_pending_query_keeps_failed_non_dead_letter_events_retryable(self):
+        connection = _FakePostgresConnection()
+        store = PostgresUserEngineStore(connection)
+
+        store.pending_outbox()
+
+        normalized = " ".join(connection.last_sql.lower().split())
+        self.assertIn("delivered_at is null", normalized)
+        self.assertIn("payload->>'dead_lettered_at'", normalized)
+        self.assertNotIn("failed_at is null", normalized)
+
 
 class _FakePostgresConnection:
     def __init__(self) -> None:
@@ -37,6 +48,7 @@ class _FakePostgresConnection:
             list[dict[str, Any]],
             list[dict[str, Any]],
         ] | None = None
+        self.last_sql = ""
 
     def cursor(self) -> "_FakePostgresCursor":
         return _FakePostgresCursor(self)
@@ -70,6 +82,7 @@ class _FakePostgresCursor:
         self._rows: list[Any] = []
 
     def execute(self, sql: str, params: Iterable[Any] | None = None) -> None:
+        self.connection.last_sql = sql
         normalized = " ".join(sql.lower().split())
         values = tuple(params or ())