diff --git a/core/src/grpc/gen-milvus/milvus.pb.h b/core/src/grpc/gen-milvus/milvus.pb.h
index 536365b23b88e954cfd7146ed88d55dab0ed3072..53ed2db22ea41448717e9f660768a6dee33da74e 100644
--- a/core/src/grpc/gen-milvus/milvus.pb.h
+++ b/core/src/grpc/gen-milvus/milvus.pb.h
@@ -1321,8 +1321,7 @@ class RowRecord :
   void clear_vector_data();
   float vector_data(int index) const;
   void set_vector_data(int index, float value);
-//  void add_vector_data(float value);
-  void add_vector_data(std::vector<float>::const_iterator begin, std::vector<float>::const_iterator end);
+  void add_vector_data(float value);
   const ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >&
       vector_data() const;
   ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >*
@@ -1474,9 +1473,7 @@ class InsertParam :
   void clear_row_id_array();
   ::PROTOBUF_NAMESPACE_ID::int64 row_id_array(int index) const;
   void set_row_id_array(int index, ::PROTOBUF_NAMESPACE_ID::int64 value);
-//  void add_row_id_array(::PROTOBUF_NAMESPACE_ID::int64 value);
-  void add_row_id_array(std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator begin,
-                        std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator end);
+  void add_row_id_array(::PROTOBUF_NAMESPACE_ID::int64 value);
   const ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >&
       row_id_array() const;
   ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >*
@@ -2139,9 +2136,7 @@ class TopKQueryResult :
   void clear_ids();
   ::PROTOBUF_NAMESPACE_ID::int64 ids(int index) const;
   void set_ids(int index, ::PROTOBUF_NAMESPACE_ID::int64 value);
-//  void add_ids(::PROTOBUF_NAMESPACE_ID::int64 value);
-  void add_ids(std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator begin,
-               std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator end);
+  void add_ids(::PROTOBUF_NAMESPACE_ID::int64 value);
   const ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >&
       ids() const;
   ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >*
@@ -2152,8 +2147,7 @@ class TopKQueryResult :
   void clear_distances();
   float distances(int index) const;
   void set_distances(int index, float value);
-//  void add_distances(float value);
-  void add_distances(std::vector<float>::const_iterator begin, std::vector<float>::const_iterator end);
+  void add_distances(float value);
   const ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >&
       distances() const;
   ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >*
@@ -3928,14 +3922,9 @@ inline void RowRecord::set_vector_data(int index, float value) {
   vector_data_.Set(index, value);
   // @@protoc_insertion_point(field_set:milvus.grpc.RowRecord.vector_data)
 }
-//inline void RowRecord::add_vector_data(float value) {
-//  vector_data_.Add(value);
-//  // @@protoc_insertion_point(field_add:milvus.grpc.RowRecord.vector_data)
-//}
-inline void RowRecord::add_vector_data(std::vector<float>::const_iterator begin,
-                                       std::vector<float>::const_iterator end) {
-    vector_data_.Add(begin, end);
-    // @@protoc_insertion_point(field_add:milvus.grpc.RowRecord.vector_data)
+inline void RowRecord::add_vector_data(float value) {
+  vector_data_.Add(value);
+  // @@protoc_insertion_point(field_add:milvus.grpc.RowRecord.vector_data)
 }
 inline const ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >&
 RowRecord::vector_data() const {
@@ -4048,14 +4037,9 @@ inline void InsertParam::set_row_id_array(int index, ::PROTOBUF_NAMESPACE_ID::in
   row_id_array_.Set(index, value);
   // @@protoc_insertion_point(field_set:milvus.grpc.InsertParam.row_id_array)
 }
-//inline void InsertParam::add_row_id_array(::PROTOBUF_NAMESPACE_ID::int64 value) {
-//  row_id_array_.Add(value);
-//  // @@protoc_insertion_point(field_add:milvus.grpc.InsertParam.row_id_array)
-//}
-inline void InsertParam::add_row_id_array(std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator begin,
-                                          std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator end) {
-    row_id_array_.Add(begin, end);
-    // @@protoc_insertion_point(field_add:milvus.grpc.InsertParam.row_id_array)
+inline void InsertParam::add_row_id_array(::PROTOBUF_NAMESPACE_ID::int64 value) {
+  row_id_array_.Add(value);
+  // @@protoc_insertion_point(field_add:milvus.grpc.InsertParam.row_id_array)
 }
 inline const ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >&
 InsertParam::row_id_array() const {
@@ -4604,14 +4588,9 @@ inline void TopKQueryResult::set_ids(int index, ::PROTOBUF_NAMESPACE_ID::int64 v
   ids_.Set(index, value);
   // @@protoc_insertion_point(field_set:milvus.grpc.TopKQueryResult.ids)
 }
-//inline void TopKQueryResult::add_ids(::PROTOBUF_NAMESPACE_ID::int64 value) {
-//  ids_.Add(value);
-//  // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.ids)
-//}
-inline void TopKQueryResult::add_ids(std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator begin,
-                                     std::vector<::PROTOBUF_NAMESPACE_ID::int64>::const_iterator end) {
-    ids_.Add(begin,end);
-    // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.ids)
+inline void TopKQueryResult::add_ids(::PROTOBUF_NAMESPACE_ID::int64 value) {
+  ids_.Add(value);
+  // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.ids)
 }
 inline const ::PROTOBUF_NAMESPACE_ID::RepeatedField< ::PROTOBUF_NAMESPACE_ID::int64 >&
 TopKQueryResult::ids() const {
@@ -4639,13 +4618,9 @@ inline void TopKQueryResult::set_distances(int index, float value) {
   distances_.Set(index, value);
   // @@protoc_insertion_point(field_set:milvus.grpc.TopKQueryResult.distances)
 }
-//inline void TopKQueryResult::add_distances(float value) {
-//  distances_.Add(value);
-//  // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.distances)
-//}
-inline void TopKQueryResult::add_distances(std::vector<float>::const_iterator begin, std::vector<float>::const_iterator end) {
-    distances_.Add(begin, end);
-    // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.distances)
+inline void TopKQueryResult::add_distances(float value) {
+  distances_.Add(value);
+  // @@protoc_insertion_point(field_add:milvus.grpc.TopKQueryResult.distances)
 }
 inline const ::PROTOBUF_NAMESPACE_ID::RepeatedField< float >&
 TopKQueryResult::distances() const {
diff --git a/core/src/sdk/grpc/ClientProxy.cpp b/core/src/sdk/grpc/ClientProxy.cpp
index 131d0bdc9943837814b3e6c7be8ee460004bb47f..4a9c319b4d431e1441a39c7ac306513ab3586469 100644
--- a/core/src/sdk/grpc/ClientProxy.cpp
+++ b/core/src/sdk/grpc/ClientProxy.cpp
@@ -32,6 +32,13 @@ UriCheck(const std::string& uri) {
     return (index != std::string::npos);
 }
 
+void
+CopyRowRecord(::milvus::grpc::RowRecord* target, const RowRecord& src) {
+    auto vector_data = target->mutable_vector_data();
+    vector_data->Resize(static_cast<int>(src.data.size()), 0.0);
+    memcpy(vector_data->mutable_data(), src.data.data(), src.data.size() * sizeof(float));
+}
+
 Status
 ClientProxy::Connect(const ConnectParam& param) {
     std::string uri = param.ip_address + ":" + param.port;
@@ -189,14 +196,16 @@ ClientProxy::Insert(const std::string& table_name, const std::string& partition_
 
         for (auto& record : record_array) {
             ::milvus::grpc::RowRecord* grpc_record = insert_param.add_row_record_array();
-            grpc_record->add_vector_data(record.data.begin(), record.data.end());
+            CopyRowRecord(grpc_record, record);
         }
 
         // Single thread
         ::milvus::grpc::VectorIds vector_ids;
         if (!id_array.empty()) {
             /* set user's ids */
-            insert_param.add_row_id_array(id_array.begin(), id_array.end());
+            auto row_ids = insert_param.mutable_row_id_array();
+            row_ids->Resize(static_cast<int>(id_array.size()), -1);
+            memcpy(row_ids->mutable_data(), id_array.data(), id_array.size() * sizeof(int64_t));
             client_ptr_->Insert(vector_ids, insert_param, status);
         } else {
             client_ptr_->Insert(vector_ids, insert_param, status);
@@ -226,7 +235,7 @@ ClientProxy::Search(const std::string& table_name, const std::vector<std::string
         }
         for (auto& record : query_record_array) {
             ::milvus::grpc::RowRecord* row_record = search_param.add_query_record_array();
-            row_record->add_vector_data(record.data.begin(), record.data.end());
+            CopyRowRecord(row_record, record);
         }
 
         // step 2: convert range array
diff --git a/core/src/server/grpc_impl/request/SearchRequest.cpp b/core/src/server/grpc_impl/request/SearchRequest.cpp
index 955576360a7d6e88e6eb8089509c73a0cb39e245..28f4ff723e4fe6415c6181be03d55666e8fec3ca 100644
--- a/core/src/server/grpc_impl/request/SearchRequest.cpp
+++ b/core/src/server/grpc_impl/request/SearchRequest.cpp
@@ -167,7 +167,7 @@ SearchRequest::OnExecute() {
 
         // step 7: construct result array
         topk_result_->set_row_num(record_count);
-        topk_result_->mutable_ids()->Resize(static_cast<int>(result_ids.size()), 0);
+        topk_result_->mutable_ids()->Resize(static_cast<int>(result_ids.size()), -1);
         memcpy(topk_result_->mutable_ids()->mutable_data(), result_ids.data(), result_ids.size() * sizeof(int64_t));
         topk_result_->mutable_distances()->Resize(static_cast<int>(result_distances.size()), 0.0);
         memcpy(topk_result_->mutable_distances()->mutable_data(), result_distances.data(),