fix: casting in reduce before appending (#1758)

alaeddine-13 · web-flow · commit 2af8a0c60213 · 2023-08-23T13:35:41.000+02:00
Signed-off-by: Alaeddine Abdessalem &lt;alaeddine-13@live.fr&gt;
diff --git a/docarray/utils/reduce.py b/docarray/utils/reduce.py
@@ -31,7 +31,8 @@ def reduce(
         if doc.id in left_id_map:
             left[left_id_map[doc.id]].update(doc)
         else:
-            left.append(doc)
+            casted = left.doc_type(**doc.__dict__)
+            left.append(casted)
 
     return left
 
