Nataneljpwd commented on code in PR #61777:
URL: https://github.com/apache/airflow/pull/61777#discussion_r2799073229


##########
providers/common/io/src/airflow/providers/common/io/xcom/backend.py:
##########
@@ -117,9 +117,13 @@ def serialize_value(  # type: ignore[override]
         run_id: str | None = None,
         map_index: int | None = None,
     ) -> bytes | str:
-        # We will use this serialized value to write to the object store.
-        s_val = json.dumps(value, cls=XComEncoder)
-        s_val_encoded = s_val.encode("utf-8")
+        if isinstance(value, bytes):
+             # Store raw bytes as-is  
+            s_val_encoded = value

Review Comment:
   Why not just hex/b64 encode the bytes? Why does it have to be bytes or json?
   What is the use case for this?
   Why not choose a different format to support both rather than json or bytes?
   
   Raw bytes can always be encoded without adding much to the data size



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