diff --git a/native-sql-engine/cpp/src/codegen/arrow_compute/ext/actions_impl.cc b/native-sql-engine/cpp/src/codegen/arrow_compute/ext/actions_impl.cc
index 25e0fa67c..5a0860ac3 100644
--- a/native-sql-engine/cpp/src/codegen/arrow_compute/ext/actions_impl.cc
+++ b/native-sql-engine/cpp/src/codegen/arrow_compute/ext/actions_impl.cc
@@ -158,12 +158,9 @@ class UniqueAction : public ActionBase {
         if (!is_null) {
           cache_validity_[dest_group_id] = true;
           cache_[dest_group_id] = (CType)in_->GetView(row_id_);
-          //cache_.emplace(cache_.begin() + dest_group_id, in_->GetView(row_id_));
         } else {
           cache_validity_[dest_group_id] = true;
           null_flag_[dest_group_id] = true;
-          // CType num;
-          // cache_.emplace(cache_.begin() + dest_group_id, num);
         }
       }
       row_id_++;
diff --git a/native-sql-engine/cpp/src/codegen/arrow_compute/ext/hash_aggregate_kernel.cc b/native-sql-engine/cpp/src/codegen/arrow_compute/ext/hash_aggregate_kernel.cc
index bfc552e9c..2288865e8 100644
--- a/native-sql-engine/cpp/src/codegen/arrow_compute/ext/hash_aggregate_kernel.cc
+++ b/native-sql-engine/cpp/src/codegen/arrow_compute/ext/hash_aggregate_kernel.cc
@@ -777,7 +777,6 @@ class HashAggregateKernel::Impl {
         }
       } else {
         for (int i = 0; i < length; i++) {
-
           aggr_hash_table_->GetOrInsert(
               typed_key_in->GetView(i), [](int) {}, [](int) {}, &(indices[i]));
         }
diff --git a/native-sql-engine/cpp/src/tests/test_utils.h b/native-sql-engine/cpp/src/tests/test_utils.h
index 711b69dd4..d3afa459d 100644
--- a/native-sql-engine/cpp/src/tests/test_utils.h
+++ b/native-sql-engine/cpp/src/tests/test_utils.h
@@ -15,6 +15,8 @@
  * limitations under the License.
  */
 
+#pragma once
+
 #include <arrow/array.h>
 #include <arrow/buffer.h>
 #include <arrow/ipc/json_simple.h>