docarray · JoanFM · Aug 13, 2023 · Aug 13, 2023
diff --git a/docarray/index/backends/qdrant.py b/docarray/index/backends/qdrant.py
@@ -269,7 +269,7 @@ def python_type_to_db_type(self, python_type: Type) -> Any:
        :param python_type: a python type.
        :return: the corresponding database column type.
        """
-        if any(issubclass(python_type, vt) for vt in QDRANT_PY_VECTOR_TYPES):
+        if any(safe_issubclass(python_type, vt) for vt in QDRANT_PY_VECTOR_TYPES):
            return 'vector'

        if safe_issubclass(python_type, docarray.typing.id.ID):

diff --git a/tests/index/qdrant/test_configurations.py b/tests/index/qdrant/test_configurations.py
@@ -1,3 +1,5 @@
+from typing import List
+
 import numpy as np
 import pytest
 from pydantic import Field
@@ -7,7 +9,6 @@
 from docarray.typing import NdArray
 from tests.index.qdrant.fixtures import start_storage, tmp_collection_name  # noqa: F401

-
 pytestmark = [pytest.mark.slow, pytest.mark.index]


@@ -44,3 +45,12 @@ class Schema(BaseDoc):

    index3 = QdrantDocumentIndex[Schema](collection_name='my_index')
    assert index3.index_name == 'my_index'
+
+
+def test_index_with_non_class_type():
+    class Schema(BaseDoc):
+        tens: NdArray = Field(dim=10)
+        list_field: List
+
+    index = QdrantDocumentIndex[Schema]()
+    assert index.num_docs() == 0