sunank200 commented on a change in pull request #16821:
URL: https://github.com/apache/airflow/pull/16821#discussion_r669332272



##########
File path: airflow/providers/amazon/aws/hooks/s3.py
##########
@@ -292,18 +302,24 @@ def list_keys(
             'PageSize': page_size,
             'MaxItems': max_items,
         }
-
         paginator = self.get_conn().get_paginator('list_objects_v2')
         response = paginator.paginate(
-            Bucket=bucket_name, Prefix=prefix, Delimiter=delimiter, 
PaginationConfig=config
+            Bucket=bucket_name,
+            Prefix=prefix,
+            Delimiter=delimiter,
+            PaginationConfig=config,
+            StartAfter=start_after_key,
+        )
+        # JMESPath to query directly on paginated results
+        filtered_response = response.search(
+            "Contents[?to_string("
+            "LastModified)<='\"{}\"' && "
+            "to_string(LastModified)>='\"{"

Review comment:
       Sure @dstandish, I think the `to` and `from` approach keeps the code 
simple and doesn't add additional complexity to it. `ResponseFilter` in my 
opinion makes things more generic for any filter operations in the future but 
it does add additional complexity to it. Would be happy to accommodate the 
change once others comment and conclude on the approach.
   
   @potiuk what do you think?




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