diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 78d2f42e..546a7514 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -46,14 +46,17 @@ add_executable(storage_client_example
 target_link_libraries(session_example
     PRIVATE
         nebula_graph_client
+        -pthread
 )
 
 target_link_libraries(session_pool_example
     PRIVATE
         nebula_graph_client
+        -pthread
 )
 
 target_link_libraries(storage_client_example
     PRIVATE
         nebula_storage_client
+        -pthread
 )
diff --git a/examples/StorageClientExample.cpp b/examples/StorageClientExample.cpp
index c1e311e1..4ae9c94b 100644
--- a/examples/StorageClientExample.cpp
+++ b/examples/StorageClientExample.cpp
@@ -35,5 +35,22 @@ int main(int argc, char* argv[]) {
         std::cout << "+++++++++++++++++++++++++" << std::endl;
     }
 
+    nebula::ScanVertexIter scanVertexIter = c.scanVertexWithPart("nba",
+                                           1,
+                                           {{"player", std::vector<std::string>{"name"}}},
+                                           10,
+                                           0,
+                                           std::numeric_limits<int64_t>::max(),
+                                           "",
+                                           true,
+                                           true);
+    std::cout << "scan vertex..." << std::endl;
+    while (scanVertexIter.hasNext()) {
+        std::cout << "-------------------------" << std::endl;
+        nebula::DataSet ds = scanVertexIter.next();
+        std::cout << ds << std::endl;
+        std::cout << "+++++++++++++++++++++++++" << std::endl;
+    }
+
     return 0;
 }
diff --git a/exported-symbols.map b/exported-symbols.map
index 2f6450da..8f6d6808 100644
--- a/exported-symbols.map
+++ b/exported-symbols.map
@@ -34,6 +34,7 @@ global:
         nebula::ExecutionResponse::*;
         nebula::StorageClient::*;
         nebula::ScanEdgeIter::*;
+        nebula::ScanVertexIter::*;
         *::_S_empty_rep_storage;
     };
 local: