diff --git a/core/unittest/server/test_rpc.cpp b/core/unittest/server/test_rpc.cpp
index 8560ad9db40b4492c84a4fa18c294648d5af0508..6fd5a5da837166c022cc8fc26ca632078a125e5f 100644
--- a/core/unittest/server/test_rpc.cpp
+++ b/core/unittest/server/test_rpc.cpp
@@ -514,6 +514,7 @@ TEST_F(RpcHandlerTest, COMBINE_SEARCH_TEST) {
     int64_t index = 0;
     for (auto& result_ptr : result_array) {
         ASSERT_NE(result_ptr->ids_size(), 0);
+        ASSERT_NE(result_ptr->row_num(), 0);
         std::string msg = "Result no." + std::to_string(index) + ": \n";
         for (int64_t i = 0; i < NQ; i++) {
             for (int64_t k = 0; k < TOPK; k++) {
@@ -615,6 +616,7 @@ TEST_F(RpcHandlerTest, COMBINE_SEARCH_BINARY_TEST) {
     int64_t index = 0;
     for (auto& result_ptr : result_array) {
         ASSERT_NE(result_ptr->ids_size(), 0);
+        ASSERT_NE(result_ptr->row_num(), 0);
         std::string msg = "Result no." + std::to_string(++index) + ": \n";
         for (int64_t i = 0; i < NQ; i++) {
             for (int64_t k = 0; k < TOPK; k++) {
diff --git a/sdk/examples/qps/src/ClientTest.cpp b/sdk/examples/qps/src/ClientTest.cpp
index df84df01f6cdb57273e70449510d2afab239e025..de23be35da78cd2d6acc1ac2d49c527f09a9c3d3 100644
--- a/sdk/examples/qps/src/ClientTest.cpp
+++ b/sdk/examples/qps/src/ClientTest.cpp
@@ -58,6 +58,8 @@ InsertEntities(std::shared_ptr<milvus::Connection>& conn) {
         milvus::Status stat = conn->Insert(COLLECTION_NAME, "", entity_array, record_ids);
         std::cout << "InsertEntities function call status: " << stat.message() << std::endl;
         std::cout << "Returned id array count: " << record_ids.size() << std::endl;
+
+        stat = conn->FlushCollection(COLLECTION_NAME);
     }
 
     return true;