diff --git a/cpp/src/db/DBMetaImpl.cpp b/cpp/src/db/DBMetaImpl.cpp
index fe53936505..a0a3cdb3cd 100644
--- a/cpp/src/db/DBMetaImpl.cpp
+++ b/cpp/src/db/DBMetaImpl.cpp
@@ -28,6 +28,7 @@ inline auto StoragePrototype(const std::string& path) {
                       make_column("file_id", &GroupFileSchema::file_id),
                       make_column("file_type", &GroupFileSchema::file_type),
                       make_column("rows", &GroupFileSchema::rows, default_value(0)),
+                      make_column("updated_time", &GroupFileSchema::updated_time),
                       make_column("date", &GroupFileSchema::date))
             );
 
@@ -166,6 +167,7 @@ Status DBMetaImpl::add_group_file(GroupFileSchema& group_file) {
     group_file.file_id = ss.str();
     group_file.dimension = group_info.dimension;
     group_file.rows = 0;
+    group_file.updated_time = ConnectorPtr->select(datetime("now", "localtime")).front();
     GetGroupFilePath(group_file);
 
     {
@@ -329,7 +331,8 @@ Status DBMetaImpl::get_group_files(const std::string& group_id_,
     return Status::OK();
 }
 
-Status DBMetaImpl::update_group_file(const GroupFileSchema& group_file) {
+Status DBMetaImpl::update_group_file(GroupFileSchema& group_file) {
+    group_file.updated_time = ConnectorPtr->select(datetime("now", "localtime")).front();
     auto commited = ConnectorPtr->transaction([&] () mutable {
         ConnectorPtr->update(group_file);
         return true;
@@ -340,9 +343,10 @@ Status DBMetaImpl::update_group_file(const GroupFileSchema& group_file) {
     return Status::OK();
 }
 
-Status DBMetaImpl::update_files(const GroupFilesSchema& files) {
+Status DBMetaImpl::update_files(GroupFilesSchema& files) {
     auto commited = ConnectorPtr->transaction([&] () mutable {
         for (auto& file : files) {
+            file.updated_time = ConnectorPtr->select(datetime("now", "localtime")).front();
             ConnectorPtr->update(file);
         }
         return true;
diff --git a/cpp/src/db/DBMetaImpl.h b/cpp/src/db/DBMetaImpl.h
index 8def7aea32..7cfed9d2e6 100644
--- a/cpp/src/db/DBMetaImpl.h
+++ b/cpp/src/db/DBMetaImpl.h
@@ -27,13 +27,13 @@ public:
     virtual Status get_group_file(const std::string& group_id_,
                                   const std::string& file_id_,
                                   GroupFileSchema& group_file_info_) override;
-    virtual Status update_group_file(const GroupFileSchema& group_file_) override;
+    virtual Status update_group_file(GroupFileSchema& group_file_) override;
 
     virtual Status get_group_files(const std::string& group_id_,
                                    const int date_delta_,
                                    GroupFilesSchema& group_files_info_) override;
 
-    virtual Status update_files(const GroupFilesSchema& files) override;
+    virtual Status update_files(GroupFilesSchema& files) override;
 
     virtual Status files_to_merge(const std::string& group_id,
             DatePartionedGroupFilesSchema& files) override;
diff --git a/cpp/src/db/LocalMetaImpl.cpp b/cpp/src/db/LocalMetaImpl.cpp
index 7bdb507647..07a26240e9 100644
--- a/cpp/src/db/LocalMetaImpl.cpp
+++ b/cpp/src/db/LocalMetaImpl.cpp
@@ -226,12 +226,12 @@ Status LocalMetaImpl::get_group_files(const std::string& group_id_,
     return Status::OK();
 }
 
-Status LocalMetaImpl::update_group_file(const GroupFileSchema& group_file_) {
+Status LocalMetaImpl::update_group_file(GroupFileSchema& group_file_) {
     //PXU TODO
     return Status::OK();
 }
 
-Status LocalMetaImpl::update_files(const GroupFilesSchema& files) {
+Status LocalMetaImpl::update_files(GroupFilesSchema& files) {
     //PXU TODO
     return Status::OK();
 }
diff --git a/cpp/src/db/LocalMetaImpl.h b/cpp/src/db/LocalMetaImpl.h
index f74916c087..8d6bb57076 100644
--- a/cpp/src/db/LocalMetaImpl.h
+++ b/cpp/src/db/LocalMetaImpl.h
@@ -26,13 +26,13 @@ public:
     virtual Status get_group_file(const std::string& group_id_,
                                   const std::string& file_id_,
                                   GroupFileSchema& group_file_info_) override;
-    virtual Status update_group_file(const GroupFileSchema& group_file_) override;
+    virtual Status update_group_file(GroupFileSchema& group_file_) override;
 
     virtual Status get_group_files(const std::string& group_id_,
                                    const int date_delta_,
                                    GroupFilesSchema& group_files_info_) override;
 
-    virtual Status update_files(const GroupFilesSchema& files) override;
+    virtual Status update_files(GroupFilesSchema& files) override;
 
     virtual Status cleanup() override;
 
diff --git a/cpp/src/db/Meta.h b/cpp/src/db/Meta.h
index 0a795cdd83..ad76ebddd1 100644
--- a/cpp/src/db/Meta.h
+++ b/cpp/src/db/Meta.h
@@ -42,6 +42,7 @@ struct GroupFileSchema {
     DateT date = EmptyDate;
     uint16_t dimension;
     std::string location = "";
+    std::string updated_time = "";
 }; // GroupFileSchema
 
 typedef std::vector<GroupFileSchema> GroupFilesSchema;
@@ -62,13 +63,13 @@ public:
     virtual Status get_group_file(const std::string& group_id_,
                                   const std::string& file_id_,
                                   GroupFileSchema& group_file_info_) = 0;
-    virtual Status update_group_file(const GroupFileSchema& group_file_) = 0;
+    virtual Status update_group_file(GroupFileSchema& group_file_) = 0;
 
     virtual Status get_group_files(const std::string& group_id_,
                                    const int date_delta_,
                                    GroupFilesSchema& group_files_info_) = 0;
 
-    virtual Status update_files(const GroupFilesSchema& files) = 0;
+    virtual Status update_files(GroupFilesSchema& files) = 0;
 
     virtual Status files_to_search(const std::string& group_id,
                                    std::vector<DateT> partition,