docs: Add comment explaining ImageBytes/PdfBytes exclusion

Add clarifying comment in type_map explaining why ImageBytes and PdfBytes are not included in the dbt type mapping. While these types exist in Feast, dbt manifests only expose generic BYTES type without semantic information to distinguish between regular bytes, images, or PDFs. Example: A dbt model with image and PDF columns both appear as 'BYTES' in the manifest, making ImageBytes/PdfBytes types unmappable from dbt artifacts. Addresses feedback from PR #5827 review (franciscojavierarceo). Signed-off-by: yassinnouh21 <yassinnouh21@gmail.com>
feast-dev · franciscojavierarceo · Jan 16, 2026 · Jan 10, 2026 · Jan 10, 2026 · Jan 10, 2026
commit ed2c2919850a3350f85d75c8f3ee10899f775f21
@@ -140,7 +140,9 @@ def _get_feast_type_name(feast_type: Any) -> str:
         base_type_name = _get_feast_type_name(base_type)
         return f"Array({base_type_name})"
 
-    # Map type objects to their names
+    # Map type objects to their names.
+    # Note: ImageBytes and PdfBytes are excluded since dbt manifests only expose
+    # generic BYTES type without semantic information about binary content.
     type_map = {
         String: "String",
         Int32: "Int32",