diff --git a/tests/pipeline/test_pipeline.py b/tests/pipeline/test_pipeline.py
index 6ee34bb758..99756b6fef 100644
--- a/tests/pipeline/test_pipeline.py
+++ b/tests/pipeline/test_pipeline.py
@@ -2878,11 +2878,10 @@ def test_push_table_with_upfront_schema() -> None:
     info = copy_pipeline.run(data, table_name="events", schema=copy_schema)
     assert copy_pipeline.default_schema.version_hash != infer_hash
 
-def test_nested_inserts_correct_target() -> None:
-    @dlt.resource(
-        primary_key="id",
-        columns={"id": {"data_type": "bigint"}},
-    )
+
+@pytest.mark.parametrize("mark_main_resource", (True, False))
+def test_nested_inserts_correct_target(mark_main_resource: bool) -> None:
+    @dlt.resource()
     def my_resource():
         yield [
             {
@@ -2891,7 +2890,7 @@ def my_resource():
                     {"id": "a", "value": 1},
                     {"id": "b", "value": 2},
                     {"id": "c", "value": 3},
-                ]
+                ],
             },
             {
                 "id": 2000,
@@ -2899,30 +2898,32 @@ def my_resource():
                     {"id": "a", "value": 4},
                     {"id": "b", "value": 5},
                     {"id": "c", "value": 6},
-                ]
+                ],
             },
         ]
 
-    @dlt.transformer(
-        data_from=my_resource,
-        write_disposition="replace",
-        # parallelized=True,
-        primary_key="id",
-        merge_key="id"
-    )
+    @dlt.transformer(data_from=my_resource)
     def things(
         my_resources: List[TDataItem],
     ) -> Iterable[TDataItem]:
 
 
         for my_resource in my_resources:
-            fields: List[Dict] = my_resource.pop("fields")
-            yield my_resource
+            fields: List[TDataItem] = my_resource.pop("fields")
+            if mark_main_resource:
+                yield dlt.mark.with_hints(
+                    item=my_resource,
+                    hints=dlt.mark.make_hints(
+                        table_name="things",
+                    )
+                )
+            else:
+                yield my_resource
+
             for field in fields:
-                #id = field.pop("id")
-                id = field["id"]
-                table_name = f"things_{id}"
-                field = { "my_resource_id": my_resource["id"] } | field
+                my_id = field["id"]
+                table_name = f"things_{my_id}"
+                field = {"my_resource_id": my_resource["id"]} | field
                 yield dlt.mark.with_hints(
                     item=field,
                     hints=dlt.mark.make_hints(
@@ -2932,11 +2933,8 @@ def things(
                 )
 
     @dlt.source()
-    def my_source(
-    ) -> Sequence[DltResource]:
-        return (
-            things
-        )
+    def my_source() -> Sequence[DltResource]:
+        return [things]
 
     pipeline_name = "pipe_" + uniq_id()
     pipeline = dlt.pipeline(pipeline_name=pipeline_name, destination="duckdb")
@@ -2944,11 +2942,4 @@ def my_source(
     assert_load_info(info)
     rows = load_tables_to_dicts(pipeline, "things_c", exclude_system_cols=True)
     print(rows)
-    assert_data_table_counts(pipeline, {"things": 1, "things_a": 1, "things_b": 1, "things_c": 1 })
-    assert pipeline.last_trace.last_normalize_info.row_counts == {
-        "_dlt_pipeline_state": 1,
-        "things": 2,
-        "things_a": 2,
-        "things_b": 2,
-        "things_c": 2,
-    }
+    assert_data_table_counts(pipeline, {"things": 2, "things_a": 2, "things_b": 2, "things_c": 2 })