diff --git a/cpp/src/db/DBMetaImpl.cpp b/cpp/src/db/DBMetaImpl.cpp
index 8c56c863e7..d13899dca0 100644
--- a/cpp/src/db/DBMetaImpl.cpp
+++ b/cpp/src/db/DBMetaImpl.cpp
@@ -612,7 +612,8 @@ Status DBMetaImpl::GetTableFiles(const std::string& table_id,
                                  TableFilesSchema& table_files) {
     try {
         table_files.clear();
-        auto files = ConnectorPtr->select(columns(&TableFileSchema::file_id_,
+        auto files = ConnectorPtr->select(columns(&TableFileSchema::id_,
+                                                  &TableFileSchema::file_id_,
                                                   &TableFileSchema::file_type_,
                                                   &TableFileSchema::size_,
                                                   &TableFileSchema::date_,
@@ -631,11 +632,12 @@ Status DBMetaImpl::GetTableFiles(const std::string& table_id,
         for (auto &file : files) {
             TableFileSchema file_schema;
             file_schema.table_id_ = table_id;
-            file_schema.file_id_ = std::get<0>(file);
-            file_schema.file_type_ = std::get<1>(file);
-            file_schema.size_ = std::get<2>(file);
-            file_schema.date_ = std::get<3>(file);
-            file_schema.engine_type_ = std::get<4>(file);
+            file_schema.id_ = std::get<0>(file);
+            file_schema.file_id_ = std::get<1>(file);
+            file_schema.file_type_ = std::get<2>(file);
+            file_schema.size_ = std::get<3>(file);
+            file_schema.date_ = std::get<4>(file);
+            file_schema.engine_type_ = std::get<5>(file);
             file_schema.dimension_ = table_schema.dimension_;
             GetTableFilePath(file_schema);
 
diff --git a/cpp/src/db/scheduler/task/SearchTask.cpp b/cpp/src/db/scheduler/task/SearchTask.cpp
index d04f270331..2bfac90e20 100644
--- a/cpp/src/db/scheduler/task/SearchTask.cpp
+++ b/cpp/src/db/scheduler/task/SearchTask.cpp
@@ -151,7 +151,7 @@ std::shared_ptr<IScheduleTask> SearchTask::Execute() {
     std::vector<float> output_distence;
     for(auto& context : search_contexts_) {
         //step 1: allocate memory
-        auto inner_k = index_engine_->Count() < context->topk() ? index_engine_->Count() : context->topk();
+        auto inner_k = context->topk();
         output_ids.resize(inner_k*context->nq());
         output_distence.resize(inner_k*context->nq());
 
@@ -164,7 +164,8 @@ std::shared_ptr<IScheduleTask> SearchTask::Execute() {
 
             //step 3: cluster result
             SearchContext::ResultSet result_set;
-            ClusterResult(output_ids, output_distence, context->nq(), inner_k, result_set);
+            auto spec_k = index_engine_->Count() < context->topk() ? index_engine_->Count() : context->topk();
+            ClusterResult(output_ids, output_distence, context->nq(), spec_k, result_set);
             rc.Record("cluster result");
 
             //step 4: pick up topk result