diff --git a/pipestat/backends/file_backend/filebackend.py b/pipestat/backends/file_backend/filebackend.py
index 6d77b0aa..29f40883 100644
--- a/pipestat/backends/file_backend/filebackend.py
+++ b/pipestat/backends/file_backend/filebackend.py
@@ -556,21 +556,21 @@ def get_nested_column(result_value: dict, key_list: list, retrieved_operator: Ca
 
         if bool_operator.lower() == "or" and filtered_records_list:
             shared_keys = list(set(chain(*filtered_records_list)))
-
+        record = {}
         if shared_keys:
             for record_identifier in sorted(shared_keys):
                 if columns:  # Did the user specify a list of columns as well?
-                    for key in list(
+                    for key, value in list(
                         self._data.data[self.pipeline_name][self.pipeline_type][
                             record_identifier
-                        ].keys()
+                        ].items()
                     ):
-                        if key not in columns:
-                            self._data.data[self.pipeline_name][self.pipeline_type][
-                                record_identifier
-                            ].pop(key)
-
-                record = self._data.data[self.pipeline_name][self.pipeline_type][record_identifier]
+                        if key in columns:
+                            record.update({key: value})
+                else:
+                    record = self._data.data[self.pipeline_name][self.pipeline_type][
+                        record_identifier
+                    ]
                 record.update({"record_identifier": record_identifier})
                 records_list.append(record)
 
diff --git a/tests/test_pipestat.py b/tests/test_pipestat.py
index 5b8aef6d..19cc0fe7 100644
--- a/tests/test_pipestat.py
+++ b/tests/test_pipestat.py
@@ -89,7 +89,9 @@ def test_basics(
                 # with pytest.raises(RecordNotFoundError):
                 #     psm.retrieve(record_identifier=rec_id)
             if backend == "db":
-                assert getattr(psm.retrieve(record_identifier=rec_id), val_name, None) is None
+                assert (
+                    psm.retrieve_one(record_identifier=rec_id)["records"][0].get(val_name) is None
+                )
                 psm.remove(record_identifier=rec_id)
                 # with pytest.raises(RecordNotFoundError):
                 #     psm.retrieve(record_identifier=rec_id)
@@ -442,9 +444,6 @@ def test_retrieve_basic(
             args.update(backend_data)
             psm = SamplePipestatManager(**args)
             psm.report(record_identifier=rec_id, values=val, force_overwrite=True)
-            # retrieved_val = psm.retrieve(
-            #     record_identifier=rec_id, result_identifier=list(val.keys())[0]
-            # )
             retrieved_val = psm.select_records(
                 filter_conditions=[
                     {
@@ -1333,29 +1332,28 @@ def test_basic_time_stamp(
             psm.report(record_identifier=rec_id, values=val, force_overwrite=True)
 
             # CHECK CREATION AND MODIFY TIME EXIST
-            created = psm.retrieve(record_identifier=rec_id, result_identifier=CREATED_TIME)
-            #
-            # created = psm.select_records(filter_conditions=[
-            #             {
-            #                 "key": "record_identifier",
-            #                 "operator": "eq",
-            #                 "value": rec_id,
-            #             },
-            #         ],
-            #     columns=[CREATED_TIME]
-            # )["records"][0][CREATED_TIME]
-
-            modified = psm.retrieve(record_identifier=rec_id, result_identifier=MODIFIED_TIME)
-
-            # modified = psm.select_records(filter_conditions=[
-            #             {
-            #                 "key": "record_identifier",
-            #                 "operator": "eq",
-            #                 "value": rec_id,
-            #             },
-            #         ],
-            #     columns=[MODIFIED_TIME]
-            # )["records"][0][MODIFIED_TIME]
+
+            created = psm.select_records(
+                filter_conditions=[
+                    {
+                        "key": "record_identifier",
+                        "operator": "eq",
+                        "value": rec_id,
+                    },
+                ],
+                columns=[CREATED_TIME],
+            )["records"][0][CREATED_TIME]
+
+            modified = psm.select_records(
+                filter_conditions=[
+                    {
+                        "key": "record_identifier",
+                        "operator": "eq",
+                        "value": rec_id,
+                    },
+                ],
+                columns=[MODIFIED_TIME],
+            )["records"][0][MODIFIED_TIME]
 
             assert created is not None
             assert modified is not None
@@ -1367,8 +1365,28 @@ def test_basic_time_stamp(
             )  # The filebackend is so fast that the updated time will equal the created time
             psm.report(record_identifier="sample1", values=val, force_overwrite=True)
             # CHECK MODIFY TIME DIFFERS FROM CREATED TIME
-            created = psm.retrieve(record_identifier=rec_id, result_identifier=CREATED_TIME)
-            modified = psm.retrieve(record_identifier=rec_id, result_identifier=MODIFIED_TIME)
+            created = psm.select_records(
+                filter_conditions=[
+                    {
+                        "key": "record_identifier",
+                        "operator": "eq",
+                        "value": rec_id,
+                    },
+                ],
+                columns=[CREATED_TIME],
+            )["records"][0][CREATED_TIME]
+
+            modified = psm.select_records(
+                filter_conditions=[
+                    {
+                        "key": "record_identifier",
+                        "operator": "eq",
+                        "value": rec_id,
+                    },
+                ],
+                columns=[MODIFIED_TIME],
+            )["records"][0][MODIFIED_TIME]
+
             assert created != modified
 
     @pytest.mark.parametrize("backend", ["db", "file"])