diff --git a/cpp/src/db/DBMetaImpl.cpp b/cpp/src/db/DBMetaImpl.cpp
index 8c56c863e7f57d0dcb0ba1489252dd60058a868e..d13899dca071ecc5233933607760965b6ec9b016 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/FaissExecutionEngine.cpp b/cpp/src/db/FaissExecutionEngine.cpp
index 20bd530e78c9dc230e36e1d830abe1832d13b900..201c07dbcf93b753c7f7ea1e5d4628388bf20553 100644
--- a/cpp/src/db/FaissExecutionEngine.cpp
+++ b/cpp/src/db/FaissExecutionEngine.cpp
@@ -138,6 +138,7 @@ Status FaissExecutionEngine::Search(long n,
     auto start_time = METRICS_NOW_TIME;
 
     std::shared_ptr<faiss::IndexIVF> ivf_index = std::dynamic_pointer_cast<faiss::IndexIVF>(pIndex_);
+    //ENGINE_LOG_DEBUG << "Index nlist: " << ivf_index->nlist << ", ntotal: "<< ivf_index->ntotal;
     if(ivf_index) {
         ENGINE_LOG_DEBUG << "Index type: IVFFLAT nProbe: " << nprobe_;
         ivf_index->nprobe = nprobe_;