diff --git a/storage/tianmu/core/engine.cpp b/storage/tianmu/core/engine.cpp
index 34b6313d9..335c2412c 100644
--- a/storage/tianmu/core/engine.cpp
+++ b/storage/tianmu/core/engine.cpp
@@ -780,11 +780,7 @@ void Engine::Rollback(THD *thd, bool all, bool force_error_message) {
 }
 
 void Engine::DeleteTable(const char *table, [[maybe_unused]] const dd::Table *table_def, [[maybe_unused]] THD *thd) {
-  {
-    std::unique_lock<std::shared_mutex> index_guard(tables_keys_mutex);
-    index::RCTableIndex::DropIndexTable(table);
-    m_table_keys.erase(table);
-  }
+  DeleteTableIndex(table, thd);
   {
     std::unique_lock<std::shared_mutex> mem_guard(mem_table_mutex);
     RCMemTable::DropMemTable(table);
@@ -1109,6 +1105,7 @@ void Engine::RenameTable([[maybe_unused]] Transaction *trans_, const std::string
   filter_cache.RemoveIf([id](const FilterCoordinate &c) { return c[0] == int(id); });
   system::RenameFile(tianmu_data_dir / (from + common::TIANMU_EXT), tianmu_data_dir / (to + common::TIANMU_EXT));
   RenameRdbTable(from, to);
+  DeleteTableIndex(from, thd);
   UnregisterMemTable(from, to);
   TIANMU_LOG(LogCtl_Level::INFO, "Rename table %s to %s", from.c_str(), to.c_str());
 }
@@ -1986,6 +1983,17 @@ void Engine::AddTableIndex(const std::string &table_path, TABLE *table, [[maybe_
   }
 }
 
+void Engine::DeleteTableIndex(const std::string &table_path, [[maybe_unused]] THD *thd) {
+  std::unique_lock<std::shared_mutex> index_guard(tables_keys_mutex);
+  if (index::RCTableIndex::FindIndexTable(table_path)) {
+    index::RCTableIndex::DropIndexTable(table_path);
+  }
+  auto iter = m_table_keys.find(table_path);
+  if (iter != m_table_keys.end()) {
+    m_table_keys.erase(table_path);
+  }
+}
+
 std::shared_ptr<index::RCTableIndex> Engine::GetTableIndex(const std::string &table_path) {
   std::shared_lock<std::shared_mutex> guard(tables_keys_mutex);
   auto iter = m_table_keys.find(table_path);
diff --git a/storage/tianmu/core/engine.h b/storage/tianmu/core/engine.h
index 503182cac..a152af112 100644
--- a/storage/tianmu/core/engine.h
+++ b/storage/tianmu/core/engine.h
@@ -113,7 +113,10 @@ class Engine final {
   void UnRegisterTable(const std::string &table_path);
   void GetTableIterator(const std::string &table_path, RCTable::Iterator &iter_begin, RCTable::Iterator &iter_end,
                         std::shared_ptr<RCTable> &table, const std::vector<bool> &, THD *thd);
+  // support for add primary key
   void AddTableIndex(const std::string &table_path, TABLE *table, THD *thd);
+  // support for delete primary key
+  void DeleteTableIndex(const std::string &table_path, THD *thd);
   std::shared_ptr<index::RCTableIndex> GetTableIndex(const std::string &table_path);
   bool has_pk(TABLE *table) const { return table->s->primary_key != MAX_INDEXES; }
   void RenameRdbTable(const std::string &from, const std::string &to);